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Date: Fri, 24 Apr 2020 11:15:52 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 5.6.7
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c07815d230bc..6ba631cc5a56 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2795,7 +2795,7 @@
<name>,<region-number>[,<base>,<size>,<buswidth>,<altbuswidth>]
mtdparts= [MTD]
- See drivers/mtd/cmdlinepart.c.
+ See drivers/mtd/parsers/cmdlinepart.c
multitce=off [PPC] This parameter disables the use of the pSeries
firmware feature for updating multiple TCE entries
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
index b739f92da58e..1f90eb39870b 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
@@ -118,7 +118,7 @@ Tegra194:
--------
pcie@...80000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>;
reg = <0x00 0x14180000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x38000000 0x0 0x00040000 /* configuration space (256K) */
diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
index eef13b9446a8..a4df53228122 100644
--- a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
+++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
@@ -53,13 +53,12 @@ properties:
description:
Reference to an nvmem node for the calibration data
- nvmem-cells-names:
+ nvmem-cell-names:
minItems: 1
maxItems: 2
items:
- - enum:
- - caldata
- - calsel
+ - const: calib
+ - const: calib_sel
"#qcom,sensors":
allOf:
@@ -125,7 +124,7 @@ examples:
<0x4a8000 0x1000>; /* SROT */
nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
- nvmem-cell-names = "caldata", "calsel";
+ nvmem-cell-names = "calib", "calib_sel";
interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "uplow";
diff --git a/Makefile b/Makefile
index af76c00de7f6..b64df959e5d7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 6
-SUBLEVEL = 6
+SUBLEVEL = 7
EXTRAVERSION =
NAME = Kleptomaniac Octopus
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index e6b4b8525f98..bc488df31511 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -1039,9 +1039,8 @@ fec: ethernet@...8000 {
compatible = "fsl,imx6q-fec";
reg = <0x02188000 0x4000>;
interrupt-names = "int0", "pps";
- interrupts-extended =
- <&intc 0 118 IRQ_TYPE_LEVEL_HIGH>,
- <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <0 118 IRQ_TYPE_LEVEL_HIGH>,
+ <0 119 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6QDL_CLK_ENET>,
<&clks IMX6QDL_CLK_ENET>,
<&clks IMX6QDL_CLK_ENET_REF>;
diff --git a/arch/arm/boot/dts/imx6qp.dtsi b/arch/arm/boot/dts/imx6qp.dtsi
index 5f51f8e5c1fa..d91f92f944c5 100644
--- a/arch/arm/boot/dts/imx6qp.dtsi
+++ b/arch/arm/boot/dts/imx6qp.dtsi
@@ -77,7 +77,6 @@ prg2: prg@...d000 {
};
&fec {
- /delete-property/interrupts-extended;
interrupts = <0 118 IRQ_TYPE_LEVEL_HIGH>,
<0 119 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/arm/boot/dts/rk3188-bqedison2qc.dts b/arch/arm/boot/dts/rk3188-bqedison2qc.dts
index ad1afd403052..66a0ff196eb1 100644
--- a/arch/arm/boot/dts/rk3188-bqedison2qc.dts
+++ b/arch/arm/boot/dts/rk3188-bqedison2qc.dts
@@ -58,20 +58,25 @@ gpio-poweroff {
lvds-encoder {
compatible = "ti,sn75lvds83", "lvds-encoder";
- #address-cells = <1>;
- #size-cells = <0>;
- port@0 {
- reg = <0>;
- lvds_in_vop0: endpoint {
- remote-endpoint = <&vop0_out_lvds>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lvds_in_vop0: endpoint {
+ remote-endpoint = <&vop0_out_lvds>;
+ };
};
- };
- port@1 {
- reg = <1>;
- lvds_out_panel: endpoint {
- remote-endpoint = <&panel_in_lvds>;
+ port@1 {
+ reg = <1>;
+
+ lvds_out_panel: endpoint {
+ remote-endpoint = <&panel_in_lvds>;
+ };
};
};
};
@@ -465,7 +470,7 @@ &mmc1 {
non-removable;
pinctrl-names = "default";
pinctrl-0 = <&sd1_clk>, <&sd1_cmd>, <&sd1_bus4>;
- vmmcq-supply = <&vccio_wl>;
+ vqmmc-supply = <&vccio_wl>;
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index e7b9bef1be6b..bd1287eca253 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -314,7 +314,7 @@ soc {
display_clocks: clock@...0000 {
compatible = "allwinner,sun8i-a83t-de2-clk";
- reg = <0x01000000 0x100000>;
+ reg = <0x01000000 0x10000>;
clocks = <&ccu CLK_BUS_DE>,
<&ccu CLK_PLL_DE>;
clock-names = "bus",
diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index a9d5d6ddbd71..a3867491bb46 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -119,7 +119,7 @@ soc {
display_clocks: clock@...0000 {
compatible = "allwinner,sun8i-r40-de2-clk",
"allwinner,sun8i-h3-de2-clk";
- reg = <0x01000000 0x100000>;
+ reg = <0x01000000 0x10000>;
clocks = <&ccu CLK_BUS_DE>,
<&ccu CLK_DE>;
clock-names = "bus",
diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 81ea50838cd5..e5312869c0d2 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -105,7 +105,7 @@ soc {
display_clocks: clock@...0000 {
compatible = "allwinner,sun8i-v3s-de2-clk";
- reg = <0x01000000 0x100000>;
+ reg = <0x01000000 0x10000>;
clocks = <&ccu CLK_BUS_DE>,
<&ccu CLK_DE>;
clock-names = "bus",
diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 5e9c3060aa08..799f32bafd80 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -114,7 +114,7 @@ soc {
display_clocks: clock@...0000 {
/* compatible is in per SoC .dtsi file */
- reg = <0x01000000 0x100000>;
+ reg = <0x01000000 0x10000>;
clocks = <&ccu CLK_BUS_DE>,
<&ccu CLK_DE>;
clock-names = "bus",
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index cc29869d12a3..bf85d6db4931 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -929,7 +929,11 @@ static inline void emit_a32_rsh_i64(const s8 dst[],
rd = arm_bpf_get_reg64(dst, tmp, ctx);
/* Do LSR operation */
- if (val < 32) {
+ if (val == 0) {
+ /* An immediate value of 0 encodes a shift amount of 32
+ * for LSR. To shift by 0, don't do anything.
+ */
+ } else if (val < 32) {
emit(ARM_MOV_SI(tmp2[1], rd[1], SRTYPE_LSR, val), ctx);
emit(ARM_ORR_SI(rd[1], tmp2[1], rd[0], SRTYPE_ASL, 32 - val), ctx);
emit(ARM_MOV_SI(rd[0], rd[0], SRTYPE_LSR, val), ctx);
@@ -955,7 +959,11 @@ static inline void emit_a32_arsh_i64(const s8 dst[],
rd = arm_bpf_get_reg64(dst, tmp, ctx);
/* Do ARSH operation */
- if (val < 32) {
+ if (val == 0) {
+ /* An immediate value of 0 encodes a shift amount of 32
+ * for ASR. To shift by 0, don't do anything.
+ */
+ } else if (val < 32) {
emit(ARM_MOV_SI(tmp2[1], rd[1], SRTYPE_LSR, val), ctx);
emit(ARM_ORR_SI(rd[1], tmp2[1], rd[0], SRTYPE_ASL, 32 - val), ctx);
emit(ARM_MOV_SI(rd[0], rd[0], SRTYPE_ASR, val), ctx);
@@ -992,21 +1000,35 @@ static inline void emit_a32_mul_r64(const s8 dst[], const s8 src[],
arm_bpf_put_reg32(dst_hi, rd[0], ctx);
}
+static bool is_ldst_imm(s16 off, const u8 size)
+{
+ s16 off_max = 0;
+
+ switch (size) {
+ case BPF_B:
+ case BPF_W:
+ off_max = 0xfff;
+ break;
+ case BPF_H:
+ off_max = 0xff;
+ break;
+ case BPF_DW:
+ /* Need to make sure off+4 does not overflow. */
+ off_max = 0xfff - 4;
+ break;
+ }
+ return -off_max <= off && off <= off_max;
+}
+
/* *(size *)(dst + off) = src */
static inline void emit_str_r(const s8 dst, const s8 src[],
- s32 off, struct jit_ctx *ctx, const u8 sz){
+ s16 off, struct jit_ctx *ctx, const u8 sz){
const s8 *tmp = bpf2a32[TMP_REG_1];
- s32 off_max;
s8 rd;
rd = arm_bpf_get_reg32(dst, tmp[1], ctx);
- if (sz == BPF_H)
- off_max = 0xff;
- else
- off_max = 0xfff;
-
- if (off < 0 || off > off_max) {
+ if (!is_ldst_imm(off, sz)) {
emit_a32_mov_i(tmp[0], off, ctx);
emit(ARM_ADD_R(tmp[0], tmp[0], rd), ctx);
rd = tmp[0];
@@ -1035,18 +1057,12 @@ static inline void emit_str_r(const s8 dst, const s8 src[],
/* dst = *(size*)(src + off) */
static inline void emit_ldx_r(const s8 dst[], const s8 src,
- s32 off, struct jit_ctx *ctx, const u8 sz){
+ s16 off, struct jit_ctx *ctx, const u8 sz){
const s8 *tmp = bpf2a32[TMP_REG_1];
const s8 *rd = is_stacked(dst_lo) ? tmp : dst;
s8 rm = src;
- s32 off_max;
-
- if (sz == BPF_H)
- off_max = 0xff;
- else
- off_max = 0xfff;
- if (off < 0 || off > off_max) {
+ if (!is_ldst_imm(off, sz)) {
emit_a32_mov_i(tmp[0], off, ctx);
emit(ARM_ADD_R(tmp[0], tmp[0], src), ctx);
rm = tmp[0];
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 862b47dc9dc9..baa6f08dc108 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -264,7 +264,7 @@ bus@...0000 {
display_clocks: clock@0 {
compatible = "allwinner,sun50i-a64-de2-clk";
- reg = <0x0 0x100000>;
+ reg = <0x0 0x10000>;
clocks = <&ccu CLK_BUS_DE>,
<&ccu CLK_DE>;
clock-names = "bus",
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
index 53b8ac55a7f3..e5262dab28f5 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
@@ -13,6 +13,12 @@
#include "armada-372x.dtsi"
/ {
+ aliases {
+ ethernet0 = ð0;
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
chosen {
stdout-path = "serial0:115200n8";
};
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
index a211a046b2f2..b90d78a5724b 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
@@ -367,6 +367,7 @@ ge_phy: ethernet-phy@0 {
pinctrl-0 = <&cp0_copper_eth_phy_reset>;
reset-gpios = <&cp0_gpio2 11 GPIO_ACTIVE_LOW>;
reset-assert-us = <10000>;
+ reset-deassert-us = <10000>;
};
switch0: switch0@4 {
diff --git a/arch/arm64/boot/dts/marvell/armada-ap807-quad.dtsi b/arch/arm64/boot/dts/marvell/armada-ap807-quad.dtsi
index 840466e143b4..68782f161f12 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap807-quad.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap807-quad.dtsi
@@ -17,7 +17,7 @@ cpus {
cpu0: cpu@0 {
device_type = "cpu";
- compatible = "arm,cortex-a72", "arm,armv8";
+ compatible = "arm,cortex-a72";
reg = <0x000>;
enable-method = "psci";
#cooling-cells = <2>;
@@ -32,7 +32,7 @@ cpu0: cpu@0 {
};
cpu1: cpu@1 {
device_type = "cpu";
- compatible = "arm,cortex-a72", "arm,armv8";
+ compatible = "arm,cortex-a72";
reg = <0x001>;
enable-method = "psci";
#cooling-cells = <2>;
@@ -47,7 +47,7 @@ cpu1: cpu@1 {
};
cpu2: cpu@100 {
device_type = "cpu";
- compatible = "arm,cortex-a72", "arm,armv8";
+ compatible = "arm,cortex-a72";
reg = <0x100>;
enable-method = "psci";
#cooling-cells = <2>;
@@ -62,7 +62,7 @@ cpu2: cpu@100 {
};
cpu3: cpu@101 {
device_type = "cpu";
- compatible = "arm,cortex-a72", "arm,armv8";
+ compatible = "arm,cortex-a72";
reg = <0x101>;
enable-method = "psci";
#cooling-cells = <2>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index ccac43be12ac..a8f024662e60 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1208,7 +1208,7 @@ sor3: sor@...c0000 {
};
pcie@...00000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX1A>;
reg = <0x00 0x14100000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x30000000 0x0 0x00040000 /* configuration space (256K) */
@@ -1253,7 +1253,7 @@ pcie@...00000 {
};
pcie@...20000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX1A>;
reg = <0x00 0x14120000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x32000000 0x0 0x00040000 /* configuration space (256K) */
@@ -1298,7 +1298,7 @@ pcie@...20000 {
};
pcie@...40000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX1A>;
reg = <0x00 0x14140000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x34000000 0x0 0x00040000 /* configuration space (256K) */
@@ -1343,7 +1343,7 @@ pcie@...40000 {
};
pcie@...60000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX4A>;
reg = <0x00 0x14160000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x36000000 0x0 0x00040000 /* configuration space (256K) */
@@ -1388,7 +1388,7 @@ pcie@...60000 {
};
pcie@...80000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>;
reg = <0x00 0x14180000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x38000000 0x0 0x00040000 /* configuration space (256K) */
@@ -1433,7 +1433,7 @@ pcie@...80000 {
};
pcie@...a0000 {
- compatible = "nvidia,tegra194-pcie", "snps,dw-pcie";
+ compatible = "nvidia,tegra194-pcie";
power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8A>;
reg = <0x00 0x141a0000 0x0 0x00020000 /* appl registers (128K) */
0x00 0x3a000000 0x0 0x00040000 /* configuration space (256K) */
@@ -1481,6 +1481,105 @@ pcie@...a0000 {
0x82000000 0x0 0x40000000 0x1f 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
};
+ pcie_ep@...60000 {
+ compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX4A>;
+ reg = <0x00 0x14160000 0x0 0x00020000 /* appl registers (128K) */
+ 0x00 0x36040000 0x0 0x00040000 /* iATU_DMA reg space (256K) */
+ 0x00 0x36080000 0x0 0x00040000 /* DBI reg space (256K) */
+ 0x14 0x00000000 0x4 0x00000000>; /* Address Space (16G) */
+ reg-names = "appl", "atu_dma", "dbi", "addr_space";
+
+ status = "disabled";
+
+ num-lanes = <4>;
+ num-ib-windows = <2>;
+ num-ob-windows = <8>;
+
+ clocks = <&bpmp TEGRA194_CLK_PEX0_CORE_4>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA194_RESET_PEX0_CORE_4_APB>,
+ <&bpmp TEGRA194_RESET_PEX0_CORE_4>;
+ reset-names = "apb", "core";
+
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
+ interrupt-names = "intr";
+
+ nvidia,bpmp = <&bpmp 4>;
+
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+ };
+
+ pcie_ep@...80000 {
+ compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>;
+ reg = <0x00 0x14180000 0x0 0x00020000 /* appl registers (128K) */
+ 0x00 0x38040000 0x0 0x00040000 /* iATU_DMA reg space (256K) */
+ 0x00 0x38080000 0x0 0x00040000 /* DBI reg space (256K) */
+ 0x18 0x00000000 0x4 0x00000000>; /* Address Space (16G) */
+ reg-names = "appl", "atu_dma", "dbi", "addr_space";
+
+ status = "disabled";
+
+ num-lanes = <8>;
+ num-ib-windows = <2>;
+ num-ob-windows = <8>;
+
+ clocks = <&bpmp TEGRA194_CLK_PEX0_CORE_0>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA194_RESET_PEX0_CORE_0_APB>,
+ <&bpmp TEGRA194_RESET_PEX0_CORE_0>;
+ reset-names = "apb", "core";
+
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
+ interrupt-names = "intr";
+
+ nvidia,bpmp = <&bpmp 0>;
+
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+ };
+
+ pcie_ep@...a0000 {
+ compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8A>;
+ reg = <0x00 0x141a0000 0x0 0x00020000 /* appl registers (128K) */
+ 0x00 0x3a040000 0x0 0x00040000 /* iATU_DMA reg space (256K) */
+ 0x00 0x3a080000 0x0 0x00040000 /* DBI reg space (256K) */
+ 0x1c 0x00000000 0x4 0x00000000>; /* Address Space (16G) */
+ reg-names = "appl", "atu_dma", "dbi", "addr_space";
+
+ status = "disabled";
+
+ num-lanes = <8>;
+ num-ib-windows = <2>;
+ num-ob-windows = <8>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&clkreq_c5_bi_dir_state>;
+
+ clocks = <&bpmp TEGRA194_CLK_PEX1_CORE_5>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA194_RESET_PEX1_CORE_5_APB>,
+ <&bpmp TEGRA194_RESET_PEX1_CORE_5>;
+ reset-names = "apb", "core";
+
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
+ interrupt-names = "intr";
+
+ nvidia,bpmp = <&bpmp 5>;
+
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+ };
+
sysram@...00000 {
compatible = "nvidia,tegra194-sysram", "mmio-sram";
reg = <0x0 0x40000000 0x0 0x50000>;
diff --git a/arch/csky/abiv1/inc/abi/entry.h b/arch/csky/abiv1/inc/abi/entry.h
index f35a9f3315ee..5056ebb902d1 100644
--- a/arch/csky/abiv1/inc/abi/entry.h
+++ b/arch/csky/abiv1/inc/abi/entry.h
@@ -172,10 +172,7 @@
addi r6, 0xe
cpwcr r6, cpcr30
- lsri r6, 28
- addi r6, 2
- lsli r6, 28
- addi r6, 0xe
+ movi r6, 0
cpwcr r6, cpcr31
.endm
diff --git a/arch/csky/abiv2/fpu.c b/arch/csky/abiv2/fpu.c
index 86d187d4e5af..5acc5c2e544e 100644
--- a/arch/csky/abiv2/fpu.c
+++ b/arch/csky/abiv2/fpu.c
@@ -10,11 +10,6 @@
#define MTCR_DIST 0xC0006420
#define MFCR_DIST 0xC0006020
-void __init init_fpu(void)
-{
- mtcr("cr<1, 2>", 0);
-}
-
/*
* fpu_libc_helper() is to help libc to excute:
* - mfcr %a, cr<1, 2>
diff --git a/arch/csky/abiv2/inc/abi/entry.h b/arch/csky/abiv2/inc/abi/entry.h
index 94a7a58765df..111973c6c713 100644
--- a/arch/csky/abiv2/inc/abi/entry.h
+++ b/arch/csky/abiv2/inc/abi/entry.h
@@ -230,11 +230,8 @@
addi r6, 0x1ce
mtcr r6, cr<30, 15> /* Set MSA0 */
- lsri r6, 28
- addi r6, 2
- lsli r6, 28
- addi r6, 0x1ce
- mtcr r6, cr<31, 15> /* Set MSA1 */
+ movi r6, 0
+ mtcr r6, cr<31, 15> /* Clr MSA1 */
/* enable MMU */
mfcr r6, cr18
diff --git a/arch/csky/abiv2/inc/abi/fpu.h b/arch/csky/abiv2/inc/abi/fpu.h
index 22ca3cf2794a..09e2700a3693 100644
--- a/arch/csky/abiv2/inc/abi/fpu.h
+++ b/arch/csky/abiv2/inc/abi/fpu.h
@@ -9,7 +9,8 @@
int fpu_libc_helper(struct pt_regs *regs);
void fpu_fpe(struct pt_regs *regs);
-void __init init_fpu(void);
+
+static inline void init_fpu(void) { mtcr("cr<1, 2>", 0); }
void save_to_user_fp(struct user_fp *user_fp);
void restore_from_user_fp(struct user_fp *user_fp);
diff --git a/arch/csky/include/asm/processor.h b/arch/csky/include/asm/processor.h
index 21e0bd5293dd..c6bcd7f7c720 100644
--- a/arch/csky/include/asm/processor.h
+++ b/arch/csky/include/asm/processor.h
@@ -43,6 +43,7 @@ extern struct cpuinfo_csky cpu_data[];
struct thread_struct {
unsigned long ksp; /* kernel stack pointer */
unsigned long sr; /* saved status register */
+ unsigned long trap_no; /* saved status register */
/* FPU regs */
struct user_fp __aligned(16) user_fp;
diff --git a/arch/csky/kernel/head.S b/arch/csky/kernel/head.S
index 61989f9241c0..17ed9d250480 100644
--- a/arch/csky/kernel/head.S
+++ b/arch/csky/kernel/head.S
@@ -21,6 +21,11 @@ END(_start)
ENTRY(_start_smp_secondary)
SETUP_MMU
+ /* copy msa1 from CPU0 */
+ lrw r6, secondary_msa1
+ ld.w r6, (r6, 0)
+ mtcr r6, cr<31, 15>
+
/* set stack point */
lrw r6, secondary_stack
ld.w r6, (r6, 0)
diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c
index 3821e55742f4..819a9a7bf786 100644
--- a/arch/csky/kernel/setup.c
+++ b/arch/csky/kernel/setup.c
@@ -24,26 +24,9 @@ struct screen_info screen_info = {
};
#endif
-phys_addr_t __init_memblock memblock_end_of_REG0(void)
-{
- return (memblock.memory.regions[0].base +
- memblock.memory.regions[0].size);
-}
-
-phys_addr_t __init_memblock memblock_start_of_REG1(void)
-{
- return memblock.memory.regions[1].base;
-}
-
-size_t __init_memblock memblock_size_of_REG1(void)
-{
- return memblock.memory.regions[1].size;
-}
-
static void __init csky_memblock_init(void)
{
unsigned long zone_size[MAX_NR_ZONES];
- unsigned long zhole_size[MAX_NR_ZONES];
signed long size;
memblock_reserve(__pa(_stext), _end - _stext);
@@ -54,54 +37,36 @@ static void __init csky_memblock_init(void)
memblock_dump_all();
memset(zone_size, 0, sizeof(zone_size));
- memset(zhole_size, 0, sizeof(zhole_size));
min_low_pfn = PFN_UP(memblock_start_of_DRAM());
- max_pfn = PFN_DOWN(memblock_end_of_DRAM());
-
- max_low_pfn = PFN_UP(memblock_end_of_REG0());
- if (max_low_pfn == 0)
- max_low_pfn = max_pfn;
+ max_low_pfn = max_pfn = PFN_DOWN(memblock_end_of_DRAM());
size = max_pfn - min_low_pfn;
- if (memblock.memory.cnt > 1) {
- zone_size[ZONE_NORMAL] =
- PFN_DOWN(memblock_start_of_REG1()) - min_low_pfn;
- zhole_size[ZONE_NORMAL] =
- PFN_DOWN(memblock_start_of_REG1()) - max_low_pfn;
+ if (size <= PFN_DOWN(SSEG_SIZE - PHYS_OFFSET_OFFSET))
+ zone_size[ZONE_NORMAL] = size;
+ else if (size < PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET)) {
+ zone_size[ZONE_NORMAL] =
+ PFN_DOWN(SSEG_SIZE - PHYS_OFFSET_OFFSET);
+ max_low_pfn = min_low_pfn + zone_size[ZONE_NORMAL];
} else {
- if (size <= PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET))
- zone_size[ZONE_NORMAL] = max_pfn - min_low_pfn;
- else {
- zone_size[ZONE_NORMAL] =
+ zone_size[ZONE_NORMAL] =
PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET);
- max_low_pfn = min_low_pfn + zone_size[ZONE_NORMAL];
- }
+ max_low_pfn = min_low_pfn + zone_size[ZONE_NORMAL];
+ write_mmu_msa1(read_mmu_msa0() + SSEG_SIZE);
}
#ifdef CONFIG_HIGHMEM
- size = 0;
- if (memblock.memory.cnt > 1) {
- size = PFN_DOWN(memblock_size_of_REG1());
- highstart_pfn = PFN_DOWN(memblock_start_of_REG1());
- } else {
- size = max_pfn - min_low_pfn -
- PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET);
- highstart_pfn = min_low_pfn +
- PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET);
- }
-
- if (size > 0)
- zone_size[ZONE_HIGHMEM] = size;
+ zone_size[ZONE_HIGHMEM] = max_pfn - max_low_pfn;
- highend_pfn = max_pfn;
+ highstart_pfn = max_low_pfn;
+ highend_pfn = max_pfn;
#endif
memblock_set_current_limit(PFN_PHYS(max_low_pfn));
dma_contiguous_reserve(0);
- free_area_init_node(0, zone_size, min_low_pfn, zhole_size);
+ free_area_init_node(0, zone_size, min_low_pfn, NULL);
}
void __init setup_arch(char **cmdline_p)
diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index 0bb0954d5570..b5c5bc3afeb5 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c
@@ -22,6 +22,9 @@
#include <asm/sections.h>
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
+#ifdef CONFIG_CPU_HAS_FPU
+#include <abi/fpu.h>
+#endif
struct ipi_data_struct {
unsigned long bits ____cacheline_aligned;
@@ -156,6 +159,8 @@ volatile unsigned int secondary_hint;
volatile unsigned int secondary_ccr;
volatile unsigned int secondary_stack;
+unsigned long secondary_msa1;
+
int __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
unsigned long mask = 1 << cpu;
@@ -164,6 +169,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
(unsigned int) task_stack_page(tidle) + THREAD_SIZE - 8;
secondary_hint = mfcr("cr31");
secondary_ccr = mfcr("cr18");
+ secondary_msa1 = read_mmu_msa1();
/*
* Because other CPUs are in reset status, we must flush data
diff --git a/arch/csky/kernel/traps.c b/arch/csky/kernel/traps.c
index b057480e7463..63715cb90ee9 100644
--- a/arch/csky/kernel/traps.c
+++ b/arch/csky/kernel/traps.c
@@ -115,8 +115,9 @@ asmlinkage void trap_c(struct pt_regs *regs)
int sig;
unsigned long vector;
siginfo_t info;
+ struct task_struct *tsk = current;
- vector = (mfcr("psr") >> 16) & 0xff;
+ vector = (regs->sr >> 16) & 0xff;
switch (vector) {
case VEC_ZERODIV:
@@ -129,6 +130,7 @@ asmlinkage void trap_c(struct pt_regs *regs)
sig = SIGTRAP;
break;
case VEC_ILLEGAL:
+ tsk->thread.trap_no = vector;
die_if_kernel("Kernel mode ILLEGAL", regs, vector);
#ifndef CONFIG_CPU_NO_USER_BKPT
if (*(uint16_t *)instruction_pointer(regs) != USR_BKPT)
@@ -146,16 +148,20 @@ asmlinkage void trap_c(struct pt_regs *regs)
sig = SIGTRAP;
break;
case VEC_ACCESS:
+ tsk->thread.trap_no = vector;
return buserr(regs);
#ifdef CONFIG_CPU_NEED_SOFTALIGN
case VEC_ALIGN:
+ tsk->thread.trap_no = vector;
return csky_alignment(regs);
#endif
#ifdef CONFIG_CPU_HAS_FPU
case VEC_FPE:
+ tsk->thread.trap_no = vector;
die_if_kernel("Kernel mode FPE", regs, vector);
return fpu_fpe(regs);
case VEC_PRIV:
+ tsk->thread.trap_no = vector;
die_if_kernel("Kernel mode PRIV", regs, vector);
if (fpu_libc_helper(regs))
return;
@@ -164,5 +170,8 @@ asmlinkage void trap_c(struct pt_regs *regs)
sig = SIGSEGV;
break;
}
+
+ tsk->thread.trap_no = vector;
+
send_sig(sig, current, 0);
}
diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c
index f76618b630f9..562c7f708749 100644
--- a/arch/csky/mm/fault.c
+++ b/arch/csky/mm/fault.c
@@ -179,11 +179,14 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write,
bad_area_nosemaphore:
/* User mode accesses just cause a SIGSEGV */
if (user_mode(regs)) {
+ tsk->thread.trap_no = (regs->sr >> 16) & 0xff;
force_sig_fault(SIGSEGV, si_code, (void __user *)address);
return;
}
no_context:
+ tsk->thread.trap_no = (regs->sr >> 16) & 0xff;
+
/* Are we prepared to handle this kernel fault? */
if (fixup_exception(regs))
return;
@@ -198,6 +201,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write,
die_if_kernel("Oops", regs, write);
out_of_memory:
+ tsk->thread.trap_no = (regs->sr >> 16) & 0xff;
+
/*
* We ran out of memory, call the OOM killer, and return the userspace
* (which will retry the fault, or kill us if we got oom-killed).
@@ -206,6 +211,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write,
return;
do_sigbus:
+ tsk->thread.trap_no = (regs->sr >> 16) & 0xff;
+
up_read(&mm->mmap_sem);
/* Kernel mode? Handle exceptions or die */
diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index c340f947baa0..fc4e64200c3d 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -62,6 +62,11 @@ eth0_power: fixedregulator@0 {
enable-active-high;
};
+ ir: ir {
+ compatible = "gpio-ir-receiver";
+ gpios = <&gpe 3 GPIO_ACTIVE_LOW>;
+ };
+
wlan0_power: fixedregulator@1 {
compatible = "regulator-fixed";
regulator-name = "wlan0_power";
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 577345382b23..673f13b87db1 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1773,6 +1773,9 @@ static void __init prom_rtas_os_term(char *str)
if (token == 0)
prom_panic("Could not get token for ibm,os-term\n");
os_term_args.token = cpu_to_be32(token);
+ os_term_args.nargs = cpu_to_be32(1);
+ os_term_args.nret = cpu_to_be32(1);
+ os_term_args.args[0] = cpu_to_be32(__pa(str));
prom_rtas_hcall((uint64_t)&os_term_args);
}
#endif /* CONFIG_PPC_SVM */
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 2cefd071b848..c0c43a733830 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3616,6 +3616,7 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit,
if (trap == BOOK3S_INTERRUPT_SYSCALL && !vcpu->arch.nested &&
kvmppc_get_gpr(vcpu, 3) == H_CEDE) {
kvmppc_nested_cede(vcpu);
+ kvmppc_set_gpr(vcpu, 3, 0);
trap = 0;
}
} else {
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 6f019df37916..15b2c6eb506d 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -291,23 +291,6 @@ static int __init maple_probe(void)
return 1;
}
-define_machine(maple) {
- .name = "Maple",
- .probe = maple_probe,
- .setup_arch = maple_setup_arch,
- .init_IRQ = maple_init_IRQ,
- .pci_irq_fixup = maple_pci_irq_fixup,
- .pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq,
- .restart = maple_restart,
- .halt = maple_halt,
- .get_boot_time = maple_get_boot_time,
- .set_rtc_time = maple_set_rtc_time,
- .get_rtc_time = maple_get_rtc_time,
- .calibrate_decr = generic_calibrate_decr,
- .progress = maple_progress,
- .power_save = power4_idle,
-};
-
#ifdef CONFIG_EDAC
/*
* Register a platform device for CPC925 memory controller on
@@ -364,3 +347,20 @@ static int __init maple_cpc925_edac_setup(void)
}
machine_device_initcall(maple, maple_cpc925_edac_setup);
#endif
+
+define_machine(maple) {
+ .name = "Maple",
+ .probe = maple_probe,
+ .setup_arch = maple_setup_arch,
+ .init_IRQ = maple_init_IRQ,
+ .pci_irq_fixup = maple_pci_irq_fixup,
+ .pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq,
+ .restart = maple_restart,
+ .halt = maple_halt,
+ .get_boot_time = maple_get_boot_time,
+ .set_rtc_time = maple_set_rtc_time,
+ .get_rtc_time = maple_get_rtc_time,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = maple_progress,
+ .power_save = power4_idle,
+};
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 1c23d84a9097..73044634d342 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -342,6 +342,7 @@ static int cbc_aes_crypt(struct skcipher_request *req, unsigned long modifier)
memcpy(walk.iv, param.iv, AES_BLOCK_SIZE);
ret = skcipher_walk_done(&walk, nbytes - n);
}
+ memzero_explicit(¶m, sizeof(param));
return ret;
}
@@ -470,6 +471,8 @@ static int xts_aes_crypt(struct skcipher_request *req, unsigned long modifier)
walk.dst.virt.addr, walk.src.virt.addr, n);
ret = skcipher_walk_done(&walk, nbytes - n);
}
+ memzero_explicit(&pcc_param, sizeof(pcc_param));
+ memzero_explicit(&xts_param, sizeof(xts_param));
return ret;
}
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index b095b1c78987..05b908b3a6b3 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1576,6 +1576,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
unsigned long range = 0, size;
unsigned long long overflow = 0;
struct perf_output_handle *handle = &cpuhw->handle;
+ unsigned long num_sdb;
aux = perf_get_aux(handle);
if (WARN_ON_ONCE(!aux))
@@ -1587,13 +1588,14 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
size >> PAGE_SHIFT);
perf_aux_output_end(handle, size);
+ num_sdb = aux->sfb.num_sdb;
while (!done) {
/* Get an output handle */
aux = perf_aux_output_begin(handle, cpuhw->event);
if (handle->size == 0) {
pr_err("The AUX buffer with %lu pages for the "
"diagnostic-sampling mode is full\n",
- aux->sfb.num_sdb);
+ num_sdb);
debug_sprintf_event(sfdbg, 1,
"%s: AUX buffer used up\n",
__func__);
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 6ebc2117c66c..91b9b3f73de6 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -165,8 +165,9 @@ static void show_cpu_mhz(struct seq_file *m, unsigned long n)
static int show_cpuinfo(struct seq_file *m, void *v)
{
unsigned long n = (unsigned long) v - 1;
+ unsigned long first = cpumask_first(cpu_online_mask);
- if (!n)
+ if (n == first)
show_cpu_summary(m, v);
if (!machine_has_cpu_mhz)
return 0;
@@ -179,6 +180,8 @@ static inline void *c_update(loff_t *pos)
{
if (*pos)
*pos = cpumask_next(*pos - 1, cpu_online_mask);
+ else
+ *pos = cpumask_first(cpu_online_mask);
return *pos < nr_cpu_ids ? (void *)*pos + 1 : NULL;
}
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 9d9ab77d02dd..364e3a89c096 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -1844,6 +1844,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
goto out_free;
} else if (*table & _REGION_ENTRY_ORIGIN) {
rc = -EAGAIN; /* Race with shadow */
+ goto out_free;
}
crst_table_init(s_r3t, _REGION3_ENTRY_EMPTY);
/* mark as invalid as long as the parent table is not protected */
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 247f95da057b..eca45ad2166c 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1607,7 +1607,9 @@ int io_thread(void *arg)
written = 0;
do {
- res = os_write_file(kernel_fd, ((char *) io_req_buffer) + written, n);
+ res = os_write_file(kernel_fd,
+ ((char *) io_req_buffer) + written,
+ n - written);
if (res >= 0) {
written += res;
}
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index fbda10535dab..5c819f89b8c2 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -8,6 +8,7 @@
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
+#include <linux/falloc.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/socket.h>
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index b0da5320bcff..624f5d9b0f79 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -20,6 +20,7 @@
#include <linux/mm.h>
#include <linux/hyperv.h>
#include <linux/slab.h>
+#include <linux/kernel.h>
#include <linux/cpuhotplug.h>
#include <linux/syscore_ops.h>
#include <clocksource/hyperv_timer.h>
@@ -419,11 +420,14 @@ void hyperv_cleanup(void)
}
EXPORT_SYMBOL_GPL(hyperv_cleanup);
-void hyperv_report_panic(struct pt_regs *regs, long err)
+void hyperv_report_panic(struct pt_regs *regs, long err, bool in_die)
{
static bool panic_reported;
u64 guest_id;
+ if (in_die && !panic_on_oops)
+ return;
+
/*
* We prefer to report panic on 'die' chain as we have proper
* registers to report, but if we miss it (e.g. on BUG()) we need
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index caf2edccbad2..49ae4e1ac9cd 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -161,7 +161,8 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
/* Make sure we are running on right CPU */
- retval = work_on_cpu(cpu, acpi_processor_ffh_cstate_probe_cpu, cx);
+ retval = call_on_cpu(cpu, acpi_processor_ffh_cstate_probe_cpu, cx,
+ false);
if (retval == 0) {
/* Use the hint in CST */
percpu_entry->states[cx->index].eax = cx->address;
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index caa032ce3fe3..5e296a7e6036 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -263,6 +263,16 @@ static void __init ms_hyperv_init_platform(void)
cpuid_eax(HYPERV_CPUID_NESTED_FEATURES);
}
+ /*
+ * Hyper-V expects to get crash register data or kmsg when
+ * crash enlightment is available and system crashes. Set
+ * crash_kexec_post_notifiers to be true to make sure that
+ * calling crash enlightment interface before running kdump
+ * kernel.
+ */
+ if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE)
+ crash_kexec_post_notifiers = true;
+
#ifdef CONFIG_X86_LOCAL_APIC
if (ms_hyperv.features & HV_X64_ACCESS_FREQUENCY_MSRS &&
ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 1d0cee3163e4..1e900676722b 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -35,7 +35,11 @@ SYM_CODE_START(startup_xen)
rep __ASM_SIZE(stos)
mov %_ASM_SI, xen_start_info
- mov $init_thread_union+THREAD_SIZE, %_ASM_SP
+#ifdef CONFIG_X86_64
+ mov initial_stack(%rip), %rsp
+#else
+ mov initial_stack, %esp
+#endif
#ifdef CONFIG_X86_64
/* Set up %gs.
@@ -51,7 +55,7 @@ SYM_CODE_START(startup_xen)
wrmsr
#endif
- jmp xen_start_kernel
+ call xen_start_kernel
SYM_CODE_END(startup_xen)
__FINIT
#endif
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 9d963ed518d1..68882b9b8f11 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -714,10 +714,7 @@ static struct bfq_group *__bfq_bic_change_cgroup(struct bfq_data *bfqd,
if (entity->sched_data != &bfqg->sched_data) {
bic_set_bfqq(bic, NULL, 0);
- bfq_log_bfqq(bfqd, async_bfqq,
- "bic_change_group: %p %d",
- async_bfqq, async_bfqq->ref);
- bfq_put_queue(async_bfqq);
+ bfq_release_process_ref(bfqd, async_bfqq);
}
}
@@ -818,39 +815,53 @@ static void bfq_flush_idle_tree(struct bfq_service_tree *st)
/**
* bfq_reparent_leaf_entity - move leaf entity to the root_group.
* @bfqd: the device data structure with the root group.
- * @entity: the entity to move.
+ * @entity: the entity to move, if entity is a leaf; or the parent entity
+ * of an active leaf entity to move, if entity is not a leaf.
*/
static void bfq_reparent_leaf_entity(struct bfq_data *bfqd,
- struct bfq_entity *entity)
+ struct bfq_entity *entity,
+ int ioprio_class)
{
- struct bfq_queue *bfqq = bfq_entity_to_bfqq(entity);
+ struct bfq_queue *bfqq;
+ struct bfq_entity *child_entity = entity;
+
+ while (child_entity->my_sched_data) { /* leaf not reached yet */
+ struct bfq_sched_data *child_sd = child_entity->my_sched_data;
+ struct bfq_service_tree *child_st = child_sd->service_tree +
+ ioprio_class;
+ struct rb_root *child_active = &child_st->active;
+
+ child_entity = bfq_entity_of(rb_first(child_active));
+
+ if (!child_entity)
+ child_entity = child_sd->in_service_entity;
+ }
+ bfqq = bfq_entity_to_bfqq(child_entity);
bfq_bfqq_move(bfqd, bfqq, bfqd->root_group);
}
/**
- * bfq_reparent_active_entities - move to the root group all active
- * entities.
+ * bfq_reparent_active_queues - move to the root group all active queues.
* @bfqd: the device data structure with the root group.
* @bfqg: the group to move from.
- * @st: the service tree with the entities.
+ * @st: the service tree to start the search from.
*/
-static void bfq_reparent_active_entities(struct bfq_data *bfqd,
- struct bfq_group *bfqg,
- struct bfq_service_tree *st)
+static void bfq_reparent_active_queues(struct bfq_data *bfqd,
+ struct bfq_group *bfqg,
+ struct bfq_service_tree *st,
+ int ioprio_class)
{
struct rb_root *active = &st->active;
- struct bfq_entity *entity = NULL;
-
- if (!RB_EMPTY_ROOT(&st->active))
- entity = bfq_entity_of(rb_first(active));
+ struct bfq_entity *entity;
- for (; entity ; entity = bfq_entity_of(rb_first(active)))
- bfq_reparent_leaf_entity(bfqd, entity);
+ while ((entity = bfq_entity_of(rb_first(active))))
+ bfq_reparent_leaf_entity(bfqd, entity, ioprio_class);
if (bfqg->sched_data.in_service_entity)
bfq_reparent_leaf_entity(bfqd,
- bfqg->sched_data.in_service_entity);
+ bfqg->sched_data.in_service_entity,
+ ioprio_class);
}
/**
@@ -882,13 +893,6 @@ static void bfq_pd_offline(struct blkg_policy_data *pd)
for (i = 0; i < BFQ_IOPRIO_CLASSES; i++) {
st = bfqg->sched_data.service_tree + i;
- /*
- * The idle tree may still contain bfq_queues belonging
- * to exited task because they never migrated to a different
- * cgroup from the one being destroyed now.
- */
- bfq_flush_idle_tree(st);
-
/*
* It may happen that some queues are still active
* (busy) upon group destruction (if the corresponding
@@ -901,7 +905,20 @@ static void bfq_pd_offline(struct blkg_policy_data *pd)
* There is no need to put the sync queues, as the
* scheduler has taken no reference.
*/
- bfq_reparent_active_entities(bfqd, bfqg, st);
+ bfq_reparent_active_queues(bfqd, bfqg, st, i);
+
+ /*
+ * The idle tree may still contain bfq_queues
+ * belonging to exited task because they never
+ * migrated to a different cgroup from the one being
+ * destroyed now. In addition, even
+ * bfq_reparent_active_queues() may happen to add some
+ * entities to the idle tree. It happens if, in some
+ * of the calls to bfq_bfqq_move() performed by
+ * bfq_reparent_active_queues(), the queue to move is
+ * empty and gets expired.
+ */
+ bfq_flush_idle_tree(st);
}
__bfq_deactivate_entity(entity, false);
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 4a44c7f19435..78ba57efd16b 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -2716,8 +2716,6 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq)
}
}
-
-static
void bfq_release_process_ref(struct bfq_data *bfqd, struct bfq_queue *bfqq)
{
/*
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index d1233af9c684..cd224aaf9f52 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -955,6 +955,7 @@ void bfq_bfqq_expire(struct bfq_data *bfqd, struct bfq_queue *bfqq,
bool compensate, enum bfqq_expiration reason);
void bfq_put_queue(struct bfq_queue *bfqq);
void bfq_end_wr_async_queues(struct bfq_data *bfqd, struct bfq_group *bfqg);
+void bfq_release_process_ref(struct bfq_data *bfqd, struct bfq_queue *bfqq);
void bfq_schedule_dispatch(struct bfq_data *bfqd);
void bfq_put_async_queues(struct bfq_data *bfqd, struct bfq_group *bfqg);
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index e618ddfab2fd..40f6a3c33a15 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -256,6 +256,8 @@ u32
acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
char *full_path, u32 path_size, u8 no_trailing);
+void acpi_ns_normalize_pathname(char *original_path);
+
char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
u8 no_trailing);
diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c
index aa71f65395d2..ee6a1b77af3f 100644
--- a/drivers/acpi/acpica/dbinput.c
+++ b/drivers/acpi/acpica/dbinput.c
@@ -468,16 +468,14 @@ char *acpi_db_get_next_token(char *string,
return (NULL);
}
- /* Remove any spaces at the beginning */
+ /* Remove any spaces at the beginning, ignore blank lines */
- if (*string == ' ') {
- while (*string && (*string == ' ')) {
- string++;
- }
+ while (*string && isspace(*string)) {
+ string++;
+ }
- if (!(*string)) {
- return (NULL);
- }
+ if (!(*string)) {
+ return (NULL);
}
switch (*string) {
@@ -570,7 +568,7 @@ char *acpi_db_get_next_token(char *string,
/* Find end of token */
- while (*string && (*string != ' ')) {
+ while (*string && !isspace(*string)) {
string++;
}
break;
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 5e81a1ae44cf..1d4f8c81028c 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -16,6 +16,9 @@
#include "acinterp.h"
#include "acnamesp.h"
#include "acdebug.h"
+#ifdef ACPI_EXEC_APP
+#include "aecommon.h"
+#endif
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dswexec")
@@ -329,6 +332,10 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
u32 op_class;
union acpi_parse_object *next_op;
union acpi_parse_object *first_arg;
+#ifdef ACPI_EXEC_APP
+ char *namepath;
+ union acpi_operand_object *obj_desc;
+#endif
ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
@@ -537,6 +544,32 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
status =
acpi_ds_eval_buffer_field_operands(walk_state, op);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+#ifdef ACPI_EXEC_APP
+ /*
+ * acpi_exec support for namespace initialization file (initialize
+ * buffer_fields in this code.)
+ */
+ namepath =
+ acpi_ns_get_external_pathname(op->common.node);
+ status = ae_lookup_init_file_entry(namepath, &obj_desc);
+ if (ACPI_SUCCESS(status)) {
+ status =
+ acpi_ex_write_data_to_field(obj_desc,
+ op->common.
+ node->object,
+ NULL);
+ if ACPI_FAILURE
+ (status) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While writing to buffer field"));
+ }
+ }
+ ACPI_FREE(namepath);
+ status = AE_OK;
+#endif
break;
case AML_TYPE_CREATE_OBJECT:
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 697974e37edf..27069325b6de 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -14,7 +14,6 @@
#include "acdispat.h"
#include "acinterp.h"
#include "acnamesp.h"
-
#ifdef ACPI_ASL_COMPILER
#include "acdisasm.h"
#endif
@@ -399,7 +398,6 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
union acpi_parse_object *op;
acpi_object_type object_type;
acpi_status status = AE_OK;
-
#ifdef ACPI_ASL_COMPILER
u8 param_count;
#endif
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index b31457ca926c..edadbe146506 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -15,6 +15,9 @@
#include "acinterp.h"
#include "acnamesp.h"
#include "acevents.h"
+#ifdef ACPI_EXEC_APP
+#include "aecommon.h"
+#endif
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dswload2")
@@ -373,6 +376,10 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
struct acpi_namespace_node *new_node;
u32 i;
u8 region_space;
+#ifdef ACPI_EXEC_APP
+ union acpi_operand_object *obj_desc;
+ char *namepath;
+#endif
ACPI_FUNCTION_TRACE(ds_load2_end_op);
@@ -466,6 +473,11 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
* be evaluated later during the execution phase
*/
status = acpi_ds_create_buffer_field(op, walk_state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "CreateBufferField failure"));
+ goto cleanup;
+ }
break;
case AML_TYPE_NAMED_FIELD:
@@ -604,6 +616,29 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
case AML_NAME_OP:
status = acpi_ds_create_node(walk_state, node, op);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+#ifdef ACPI_EXEC_APP
+ /*
+ * acpi_exec support for namespace initialization file (initialize
+ * Name opcodes in this code.)
+ */
+ namepath = acpi_ns_get_external_pathname(node);
+ status = ae_lookup_init_file_entry(namepath, &obj_desc);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Detach any existing object, attach new object */
+
+ if (node->object) {
+ acpi_ns_detach_object(node);
+ }
+ acpi_ns_attach_object(node, obj_desc,
+ obj_desc->common.type);
+ }
+ ACPI_FREE(namepath);
+ status = AE_OK;
+#endif
break;
case AML_METHOD_OP:
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index 370bbc867745..c717fff7d9b5 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -13,9 +13,6 @@
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsnames")
-/* Local Prototypes */
-static void acpi_ns_normalize_pathname(char *original_path);
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_get_external_pathname
@@ -30,7 +27,6 @@ static void acpi_ns_normalize_pathname(char *original_path);
* for error and debug statements.
*
******************************************************************************/
-
char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
{
char *name_buffer;
@@ -411,7 +407,7 @@ char *acpi_ns_build_prefixed_pathname(union acpi_generic_state *prefix_scope,
*
******************************************************************************/
-static void acpi_ns_normalize_pathname(char *original_path)
+void acpi_ns_normalize_pathname(char *original_path)
{
char *input_path = original_path;
char *new_path_buffer;
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index eee263cb7beb..c365faf4e6cd 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -452,13 +452,13 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
*
* FUNCTION: acpi_ut_update_object_reference
*
- * PARAMETERS: object - Increment ref count for this object
- * and all sub-objects
+ * PARAMETERS: object - Increment or decrement the ref count for
+ * this object and all sub-objects
* action - Either REF_INCREMENT or REF_DECREMENT
*
* RETURN: Status
*
- * DESCRIPTION: Increment the object reference count
+ * DESCRIPTION: Increment or decrement the object reference count
*
* Object references are incremented when:
* 1) An object is attached to a Node (namespace object)
@@ -492,7 +492,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
}
/*
- * All sub-objects must have their reference count incremented
+ * All sub-objects must have their reference count updated
* also. Different object types have different subobjects.
*/
switch (object->common.type) {
@@ -559,6 +559,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
break;
}
}
+
next_object = NULL;
break;
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index b64c62bfcea5..b2263ec67b43 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -1321,8 +1321,8 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
*/
static const struct acpi_device_id special_pm_ids[] = {
{"PNP0C0B", }, /* Generic ACPI fan */
- {"INT1044", }, /* Fan for Tiger Lake generation */
{"INT3404", }, /* Fan */
+ {"INTC1044", }, /* Fan for Tiger Lake generation */
{}
};
struct acpi_device *adev = ACPI_COMPANION(dev);
diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c
index 387f27ef3368..e4e8b75d39f0 100644
--- a/drivers/acpi/dptf/dptf_power.c
+++ b/drivers/acpi/dptf/dptf_power.c
@@ -97,8 +97,8 @@ static int dptf_power_remove(struct platform_device *pdev)
}
static const struct acpi_device_id int3407_device_ids[] = {
- {"INT1047", 0},
{"INT3407", 0},
+ {"INTC1047", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, int3407_device_ids);
diff --git a/drivers/acpi/dptf/int340x_thermal.c b/drivers/acpi/dptf/int340x_thermal.c
index 1ec7b6900662..bc71a6a60334 100644
--- a/drivers/acpi/dptf/int340x_thermal.c
+++ b/drivers/acpi/dptf/int340x_thermal.c
@@ -13,10 +13,6 @@
#define INT3401_DEVICE 0X01
static const struct acpi_device_id int340x_thermal_device_ids[] = {
- {"INT1040"},
- {"INT1043"},
- {"INT1044"},
- {"INT1047"},
{"INT3400"},
{"INT3401", INT3401_DEVICE},
{"INT3402"},
@@ -28,6 +24,10 @@ static const struct acpi_device_id int340x_thermal_device_ids[] = {
{"INT3409"},
{"INT340A"},
{"INT340B"},
+ {"INTC1040"},
+ {"INTC1043"},
+ {"INTC1044"},
+ {"INTC1047"},
{""},
};
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 532a1ae3595a..a0bd56ece3ff 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -897,13 +897,6 @@ static long __acpi_processor_get_throttling(void *data)
return pr->throttling.acpi_processor_get_throttling(pr);
}
-static int call_on_cpu(int cpu, long (*fn)(void *), void *arg, bool direct)
-{
- if (direct || (is_percpu_thread() && cpu == smp_processor_id()))
- return fn(arg);
- return work_on_cpu(cpu, fn, arg);
-}
-
static int acpi_processor_get_throttling(struct acpi_processor *pr)
{
if (!pr)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6343402c09e6..27b80df49ba2 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4554,6 +4554,10 @@ static void cancel_tasks_sync(struct rbd_device *rbd_dev)
cancel_work_sync(&rbd_dev->unlock_work);
}
+/*
+ * header_rwsem must not be held to avoid a deadlock with
+ * rbd_dev_refresh() when flushing notifies.
+ */
static void rbd_unregister_watch(struct rbd_device *rbd_dev)
{
cancel_tasks_sync(rbd_dev);
@@ -6951,9 +6955,10 @@ static void rbd_print_dne(struct rbd_device *rbd_dev, bool is_snap)
static void rbd_dev_image_release(struct rbd_device *rbd_dev)
{
- rbd_dev_unprobe(rbd_dev);
- if (rbd_dev->opts)
+ if (!rbd_is_ro(rbd_dev))
rbd_unregister_watch(rbd_dev);
+
+ rbd_dev_unprobe(rbd_dev);
rbd_dev->image_format = 0;
kfree(rbd_dev->spec->image_id);
rbd_dev->spec->image_id = NULL;
@@ -6964,6 +6969,9 @@ static void rbd_dev_image_release(struct rbd_device *rbd_dev)
* device. If this image is the one being mapped (i.e., not a
* parent), initiate a watch on its header object before using that
* object to get detailed information about the rbd image.
+ *
+ * On success, returns with header_rwsem held for write if called
+ * with @depth == 0.
*/
static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth)
{
@@ -6993,11 +7001,14 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth)
}
}
+ if (!depth)
+ down_write(&rbd_dev->header_rwsem);
+
ret = rbd_dev_header_info(rbd_dev);
if (ret) {
if (ret == -ENOENT && !need_watch)
rbd_print_dne(rbd_dev, false);
- goto err_out_watch;
+ goto err_out_probe;
}
/*
@@ -7042,10 +7053,11 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth)
return 0;
err_out_probe:
- rbd_dev_unprobe(rbd_dev);
-err_out_watch:
+ if (!depth)
+ up_write(&rbd_dev->header_rwsem);
if (need_watch)
rbd_unregister_watch(rbd_dev);
+ rbd_dev_unprobe(rbd_dev);
err_out_format:
rbd_dev->image_format = 0;
kfree(rbd_dev->spec->image_id);
@@ -7107,12 +7119,9 @@ static ssize_t do_rbd_add(struct bus_type *bus,
goto err_out_rbd_dev;
}
- down_write(&rbd_dev->header_rwsem);
rc = rbd_dev_image_probe(rbd_dev, 0);
- if (rc < 0) {
- up_write(&rbd_dev->header_rwsem);
+ if (rc < 0)
goto err_out_rbd_dev;
- }
if (rbd_dev->opts->alloc_size > rbd_dev->layout.object_size) {
rbd_warn(rbd_dev, "alloc_size adjusted to %u",
diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c
index bda92980e015..c0895c993cce 100644
--- a/drivers/clk/at91/clk-usb.c
+++ b/drivers/clk/at91/clk-usb.c
@@ -75,6 +75,9 @@ static int at91sam9x5_clk_usb_determine_rate(struct clk_hw *hw,
tmp_parent_rate = req->rate * div;
tmp_parent_rate = clk_hw_round_rate(parent,
tmp_parent_rate);
+ if (!tmp_parent_rate)
+ continue;
+
tmp_rate = DIV_ROUND_CLOSEST(tmp_parent_rate, div);
if (tmp_rate < req->rate)
tmp_diff = req->rate - tmp_rate;
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 95adf6c6db3d..305544b68b8a 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2660,12 +2660,14 @@ static int clk_core_get_phase(struct clk_core *core)
{
int ret;
- clk_prepare_lock();
+ lockdep_assert_held(&prepare_lock);
+ if (!core->ops->get_phase)
+ return 0;
+
/* Always try to update cached phase if possible */
- if (core->ops->get_phase)
- core->phase = core->ops->get_phase(core->hw);
- ret = core->phase;
- clk_prepare_unlock();
+ ret = core->ops->get_phase(core->hw);
+ if (ret >= 0)
+ core->phase = ret;
return ret;
}
@@ -2679,10 +2681,16 @@ static int clk_core_get_phase(struct clk_core *core)
*/
int clk_get_phase(struct clk *clk)
{
+ int ret;
+
if (!clk)
return 0;
- return clk_core_get_phase(clk->core);
+ clk_prepare_lock();
+ ret = clk_core_get_phase(clk->core);
+ clk_prepare_unlock();
+
+ return ret;
}
EXPORT_SYMBOL_GPL(clk_get_phase);
@@ -2896,13 +2904,21 @@ static struct hlist_head *orphan_list[] = {
static void clk_summary_show_one(struct seq_file *s, struct clk_core *c,
int level)
{
- seq_printf(s, "%*s%-*s %7d %8d %8d %11lu %10lu %5d %6d\n",
+ int phase;
+
+ seq_printf(s, "%*s%-*s %7d %8d %8d %11lu %10lu ",
level * 3 + 1, "",
30 - level * 3, c->name,
c->enable_count, c->prepare_count, c->protect_count,
- clk_core_get_rate(c), clk_core_get_accuracy(c),
- clk_core_get_phase(c),
- clk_core_get_scaled_duty_cycle(c, 100000));
+ clk_core_get_rate(c), clk_core_get_accuracy(c));
+
+ phase = clk_core_get_phase(c);
+ if (phase >= 0)
+ seq_printf(s, "%5d", phase);
+ else
+ seq_puts(s, "-----");
+
+ seq_printf(s, " %6d\n", clk_core_get_scaled_duty_cycle(c, 100000));
}
static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c,
@@ -2939,6 +2955,7 @@ DEFINE_SHOW_ATTRIBUTE(clk_summary);
static void clk_dump_one(struct seq_file *s, struct clk_core *c, int level)
{
+ int phase;
unsigned long min_rate, max_rate;
clk_core_get_boundaries(c, &min_rate, &max_rate);
@@ -2952,7 +2969,9 @@ static void clk_dump_one(struct seq_file *s, struct clk_core *c, int level)
seq_printf(s, "\"min_rate\": %lu,", min_rate);
seq_printf(s, "\"max_rate\": %lu,", max_rate);
seq_printf(s, "\"accuracy\": %lu,", clk_core_get_accuracy(c));
- seq_printf(s, "\"phase\": %d,", clk_core_get_phase(c));
+ phase = clk_core_get_phase(c);
+ if (phase >= 0)
+ seq_printf(s, "\"phase\": %d,", phase);
seq_printf(s, "\"duty_cycle\": %u",
clk_core_get_scaled_duty_cycle(c, 100000));
}
@@ -3434,14 +3453,11 @@ static int __clk_core_init(struct clk_core *core)
core->accuracy = 0;
/*
- * Set clk's phase.
+ * Set clk's phase by clk_core_get_phase() caching the phase.
* Since a phase is by definition relative to its parent, just
* query the current clock phase, or just assume it's in phase.
*/
- if (core->ops->get_phase)
- core->phase = core->ops->get_phase(core->hw);
- else
- core->phase = 0;
+ clk_core_get_phase(core);
/*
* Set clk's duty cycle.
diff --git a/drivers/clk/imx/clk-pll14xx.c b/drivers/clk/imx/clk-pll14xx.c
index 5b0519a81a7a..37e311e1d058 100644
--- a/drivers/clk/imx/clk-pll14xx.c
+++ b/drivers/clk/imx/clk-pll14xx.c
@@ -55,8 +55,10 @@ static const struct imx_pll14xx_rate_table imx_pll1416x_tbl[] = {
};
static const struct imx_pll14xx_rate_table imx_pll1443x_tbl[] = {
+ PLL_1443X_RATE(1039500000U, 173, 2, 1, 16384),
PLL_1443X_RATE(650000000U, 325, 3, 2, 0),
PLL_1443X_RATE(594000000U, 198, 2, 2, 0),
+ PLL_1443X_RATE(519750000U, 173, 2, 2, 16384),
PLL_1443X_RATE(393216000U, 262, 2, 3, 9437),
PLL_1443X_RATE(361267200U, 361, 3, 3, 17511),
};
diff --git a/drivers/clk/tegra/clk-tegra-pmc.c b/drivers/clk/tegra/clk-tegra-pmc.c
index bec3e008335f..5e044ba1ae36 100644
--- a/drivers/clk/tegra/clk-tegra-pmc.c
+++ b/drivers/clk/tegra/clk-tegra-pmc.c
@@ -49,16 +49,16 @@ struct pmc_clk_init_data {
static DEFINE_SPINLOCK(clk_out_lock);
-static const char *clk_out1_parents[] = { "clk_m", "clk_m_div2",
- "clk_m_div4", "extern1",
+static const char *clk_out1_parents[] = { "osc", "osc_div2",
+ "osc_div4", "extern1",
};
-static const char *clk_out2_parents[] = { "clk_m", "clk_m_div2",
- "clk_m_div4", "extern2",
+static const char *clk_out2_parents[] = { "osc", "osc_div2",
+ "osc_div4", "extern2",
};
-static const char *clk_out3_parents[] = { "clk_m", "clk_m_div2",
- "clk_m_div4", "extern3",
+static const char *clk_out3_parents[] = { "osc", "osc_div2",
+ "osc_div4", "extern3",
};
static struct pmc_clk_init_data pmc_clks[] = {
diff --git a/drivers/crypto/qce/dma.c b/drivers/crypto/qce/dma.c
index 7da893dc00e7..46db5bf366b4 100644
--- a/drivers/crypto/qce/dma.c
+++ b/drivers/crypto/qce/dma.c
@@ -48,9 +48,10 @@ void qce_dma_release(struct qce_dma_data *dma)
struct scatterlist *
qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl,
- int max_ents)
+ unsigned int max_len)
{
struct scatterlist *sg = sgt->sgl, *sg_last = NULL;
+ unsigned int new_len;
while (sg) {
if (!sg_page(sg))
@@ -61,13 +62,13 @@ qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl,
if (!sg)
return ERR_PTR(-EINVAL);
- while (new_sgl && sg && max_ents) {
- sg_set_page(sg, sg_page(new_sgl), new_sgl->length,
- new_sgl->offset);
+ while (new_sgl && sg && max_len) {
+ new_len = new_sgl->length > max_len ? max_len : new_sgl->length;
+ sg_set_page(sg, sg_page(new_sgl), new_len, new_sgl->offset);
sg_last = sg;
sg = sg_next(sg);
new_sgl = sg_next(new_sgl);
- max_ents--;
+ max_len -= new_len;
}
return sg_last;
diff --git a/drivers/crypto/qce/dma.h b/drivers/crypto/qce/dma.h
index ed25a0d9829e..786402169360 100644
--- a/drivers/crypto/qce/dma.h
+++ b/drivers/crypto/qce/dma.h
@@ -43,6 +43,6 @@ void qce_dma_issue_pending(struct qce_dma_data *dma);
int qce_dma_terminate_all(struct qce_dma_data *dma);
struct scatterlist *
qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add,
- int max_ents);
+ unsigned int max_len);
#endif /* _DMA_H_ */
diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c
index 4217b745f124..63ae75809cb7 100644
--- a/drivers/crypto/qce/skcipher.c
+++ b/drivers/crypto/qce/skcipher.c
@@ -97,13 +97,14 @@ qce_skcipher_async_req_handle(struct crypto_async_request *async_req)
sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ);
- sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, rctx->dst_nents - 1);
+ sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, req->cryptlen);
if (IS_ERR(sg)) {
ret = PTR_ERR(sg);
goto error_free;
}
- sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg, 1);
+ sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg,
+ QCE_RESULT_BUF_SZ);
if (IS_ERR(sg)) {
ret = PTR_ERR(sg);
goto error_free;
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index ada69e722f84..f6f49f0f6fae 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -584,11 +584,11 @@ static void idxd_group_flags_setup(struct idxd_device *idxd)
struct idxd_group *group = &idxd->groups[i];
if (group->tc_a == -1)
- group->grpcfg.flags.tc_a = 0;
+ group->tc_a = group->grpcfg.flags.tc_a = 0;
else
group->grpcfg.flags.tc_a = group->tc_a;
if (group->tc_b == -1)
- group->grpcfg.flags.tc_b = 1;
+ group->tc_b = group->grpcfg.flags.tc_b = 1;
else
group->grpcfg.flags.tc_b = group->tc_b;
group->grpcfg.flags.use_token_limit = group->use_token_limit;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 2a9e40131735..0d70cb2248fe 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -1104,9 +1104,9 @@ int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size,
return 0;
kfd_gtt_no_free_chunk:
- pr_debug("Allocation failed with mem_obj = %p\n", mem_obj);
+ pr_debug("Allocation failed with mem_obj = %p\n", *mem_obj);
mutex_unlock(&kfd->gtt_sa_lock);
- kfree(mem_obj);
+ kfree(*mem_obj);
return -ENOMEM;
}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index 0acd3409dd6c..3abeff7722e3 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -113,10 +113,13 @@ void hdcp_update_display(struct hdcp_workqueue *hdcp_work,
if (enable_encryption) {
display->adjust.disable = 0;
- if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0)
+ if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) {
+ hdcp_w->link.adjust.hdcp1.disable = 0;
hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0;
- else if (content_type == DRM_MODE_HDCP_CONTENT_TYPE1)
+ } else if (content_type == DRM_MODE_HDCP_CONTENT_TYPE1) {
+ hdcp_w->link.adjust.hdcp1.disable = 1;
hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_1;
+ }
schedule_delayed_work(&hdcp_w->property_validate_dwork,
msecs_to_jiffies(DRM_HDCP_CHECK_PERIOD_MS));
@@ -334,6 +337,7 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
link->dp.rev = aconnector->dc_link->dpcd_caps.dpcd_rev.raw;
display->adjust.disable = 1;
link->adjust.auth_delay = 2;
+ link->adjust.hdcp1.disable = 0;
hdcp_update_display(hdcp_work, link_index, aconnector, DRM_MODE_HDCP_CONTENT_TYPE0, false);
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index b65ae817eabf..2d4c899e1f8b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -618,6 +618,64 @@ nouveau_drm_device_fini(struct drm_device *dev)
kfree(drm);
}
+/*
+ * On some Intel PCIe bridge controllers doing a
+ * D0 -> D3hot -> D3cold -> D0 sequence causes Nvidia GPUs to not reappear.
+ * Skipping the intermediate D3hot step seems to make it work again. This is
+ * probably caused by not meeting the expectation the involved AML code has
+ * when the GPU is put into D3hot state before invoking it.
+ *
+ * This leads to various manifestations of this issue:
+ * - AML code execution to power on the GPU hits an infinite loop (as the
+ * code waits on device memory to change).
+ * - kernel crashes, as all PCI reads return -1, which most code isn't able
+ * to handle well enough.
+ *
+ * In all cases dmesg will contain at least one line like this:
+ * 'nouveau 0000:01:00.0: Refused to change power state, currently in D3'
+ * followed by a lot of nouveau timeouts.
+ *
+ * In the \_SB.PCI0.PEG0.PG00._OFF code deeper down writes bit 0x80 to the not
+ * documented PCI config space register 0x248 of the Intel PCIe bridge
+ * controller (0x1901) in order to change the state of the PCIe link between
+ * the PCIe port and the GPU. There are alternative code paths using other
+ * registers, which seem to work fine (executed pre Windows 8):
+ * - 0xbc bit 0x20 (publicly available documentation claims 'reserved')
+ * - 0xb0 bit 0x10 (link disable)
+ * Changing the conditions inside the firmware by poking into the relevant
+ * addresses does resolve the issue, but it seemed to be ACPI private memory
+ * and not any device accessible memory at all, so there is no portable way of
+ * changing the conditions.
+ * On a XPS 9560 that means bits [0,3] on \CPEX need to be cleared.
+ *
+ * The only systems where this behavior can be seen are hybrid graphics laptops
+ * with a secondary Nvidia Maxwell, Pascal or Turing GPU. It's unclear whether
+ * this issue only occurs in combination with listed Intel PCIe bridge
+ * controllers and the mentioned GPUs or other devices as well.
+ *
+ * documentation on the PCIe bridge controller can be found in the
+ * "7th Generation Intel® Processor Families for H Platforms Datasheet Volume 2"
+ * Section "12 PCI Express* Controller (x16) Registers"
+ */
+
+static void quirk_broken_nv_runpm(struct pci_dev *pdev)
+{
+ struct drm_device *dev = pci_get_drvdata(pdev);
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct pci_dev *bridge = pci_upstream_bridge(pdev);
+
+ if (!bridge || bridge->vendor != PCI_VENDOR_ID_INTEL)
+ return;
+
+ switch (bridge->device) {
+ case 0x1901:
+ drm->old_pm_cap = pdev->pm_cap;
+ pdev->pm_cap = 0;
+ NV_INFO(drm, "Disabling PCI power management to avoid bug\n");
+ break;
+ }
+}
+
static int nouveau_drm_probe(struct pci_dev *pdev,
const struct pci_device_id *pent)
{
@@ -699,6 +757,7 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
if (ret)
goto fail_drm_dev_init;
+ quirk_broken_nv_runpm(pdev);
return 0;
fail_drm_dev_init:
@@ -734,7 +793,11 @@ static void
nouveau_drm_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ /* revert our workaround */
+ if (drm->old_pm_cap)
+ pdev->pm_cap = drm->old_pm_cap;
nouveau_drm_device_remove(dev);
pci_disable_device(pdev);
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index c2c332fbde97..2a6519737800 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -140,6 +140,8 @@ struct nouveau_drm {
struct list_head clients;
+ u8 old_pm_cap;
+
struct {
struct agp_bridge_data *bridge;
u32 base;
diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index df9bf1fd1bc0..c567526b75b8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
@@ -171,6 +171,11 @@ nouveau_svmm_bind(struct drm_device *dev, void *data,
mm = get_task_mm(current);
down_read(&mm->mmap_sem);
+ if (!cli->svm.svmm) {
+ up_read(&mm->mmap_sem);
+ return -EINVAL;
+ }
+
for (addr = args->va_start, end = args->va_start + size; addr < end;) {
struct vm_area_struct *vma;
unsigned long next;
@@ -179,6 +184,7 @@ nouveau_svmm_bind(struct drm_device *dev, void *data,
if (!vma)
break;
+ addr = max(addr, vma->vm_start);
next = min(vma->vm_end, end);
/* This is a best effort so we ignore errors */
nouveau_dmem_migrate_vma(cli->drm, vma, addr, next);
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
index dd8f85b8b3a7..f2f5636efac4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
@@ -1981,8 +1981,34 @@ gf100_gr_init_(struct nvkm_gr *base)
{
struct gf100_gr *gr = gf100_gr(base);
struct nvkm_subdev *subdev = &base->engine.subdev;
+ struct nvkm_device *device = subdev->device;
+ bool reset = device->chipset == 0x137 || device->chipset == 0x138;
u32 ret;
+ /* On certain GP107/GP108 boards, we trigger a weird issue where
+ * GR will stop responding to PRI accesses after we've asked the
+ * SEC2 RTOS to boot the GR falcons. This happens with far more
+ * frequency when cold-booting a board (ie. returning from D3).
+ *
+ * The root cause for this is not known and has proven difficult
+ * to isolate, with many avenues being dead-ends.
+ *
+ * A workaround was discovered by Karol, whereby putting GR into
+ * reset for an extended period right before initialisation
+ * prevents the problem from occuring.
+ *
+ * XXX: As RM does not require any such workaround, this is more
+ * of a hack than a true fix.
+ */
+ reset = nvkm_boolopt(device->cfgopt, "NvGrResetWar", reset);
+ if (reset) {
+ nvkm_mask(device, 0x000200, 0x00001000, 0x00000000);
+ nvkm_rd32(device, 0x000200);
+ msleep(50);
+ nvkm_mask(device, 0x000200, 0x00001000, 0x00001000);
+ nvkm_rd32(device, 0x000200);
+ }
+
nvkm_pmu_pgob(gr->base.engine.subdev.device->pmu, false);
ret = nvkm_falcon_get(&gr->fecs.falcon, subdev);
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 5df596fb0280..fe420ca454e0 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -498,8 +498,10 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
dma_resv_unlock(bo->base.resv);
}
- if (bo->base.resv != &bo->base._resv)
+ if (bo->base.resv != &bo->base._resv) {
+ ttm_bo_flush_all_fences(bo);
dma_resv_unlock(&bo->base._resv);
+ }
error:
kref_get(&bo->list_kref);
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index cea18dc15f77..340719238753 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -681,11 +681,23 @@ static enum drm_mode_status
vc4_hdmi_encoder_mode_valid(struct drm_encoder *crtc,
const struct drm_display_mode *mode)
{
- /* HSM clock must be 108% of the pixel clock. Additionally,
- * the AXI clock needs to be at least 25% of pixel clock, but
- * HSM ends up being the limiting factor.
+ /*
+ * As stated in RPi's vc4 firmware "HDMI state machine (HSM) clock must
+ * be faster than pixel clock, infinitesimally faster, tested in
+ * simulation. Otherwise, exact value is unimportant for HDMI
+ * operation." This conflicts with bcm2835's vc4 documentation, which
+ * states HSM's clock has to be at least 108% of the pixel clock.
+ *
+ * Real life tests reveal that vc4's firmware statement holds up, and
+ * users are able to use pixel clocks closer to HSM's, namely for
+ * 1920x1200@...z. So it was decided to have leave a 1% margin between
+ * both clocks. Which, for RPi0-3 implies a maximum pixel clock of
+ * 162MHz.
+ *
+ * Additionally, the AXI clock needs to be at least 25% of
+ * pixel clock, but HSM ends up being the limiting factor.
*/
- if (mode->clock > HSM_CLOCK_FREQ / (1000 * 108 / 100))
+ if (mode->clock > HSM_CLOCK_FREQ / (1000 * 101 / 100))
return MODE_CLOCK_HIGH;
return MODE_OK;
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 0370364169c4..501c43c5851d 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -839,6 +839,9 @@ void vmbus_initiate_unload(bool crash)
{
struct vmbus_channel_message_header hdr;
+ if (xchg(&vmbus_connection.conn_state, DISCONNECTED) == DISCONNECTED)
+ return;
+
/* Pre-Win2012R2 hosts don't support reconnect */
if (vmbus_proto_version < VERSION_WIN8_1)
return;
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 029378c27421..a68bce4d0ddb 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -31,6 +31,7 @@
#include <linux/kdebug.h>
#include <linux/efi.h>
#include <linux/random.h>
+#include <linux/kernel.h>
#include <linux/syscore_ops.h>
#include <clocksource/hyperv_timer.h>
#include "hyperv_vmbus.h"
@@ -48,14 +49,35 @@ static int hyperv_cpuhp_online;
static void *hv_panic_page;
+/*
+ * Boolean to control whether to report panic messages over Hyper-V.
+ *
+ * It can be set via /proc/sys/kernel/hyperv/record_panic_msg
+ */
+static int sysctl_record_panic_msg = 1;
+
+static int hyperv_report_reg(void)
+{
+ return !sysctl_record_panic_msg || !hv_panic_page;
+}
+
static int hyperv_panic_event(struct notifier_block *nb, unsigned long val,
void *args)
{
struct pt_regs *regs;
- regs = current_pt_regs();
+ vmbus_initiate_unload(true);
- hyperv_report_panic(regs, val);
+ /*
+ * Hyper-V should be notified only once about a panic. If we will be
+ * doing hyperv_report_panic_msg() later with kmsg data, don't do
+ * the notification here.
+ */
+ if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE
+ && hyperv_report_reg()) {
+ regs = current_pt_regs();
+ hyperv_report_panic(regs, val, false);
+ }
return NOTIFY_DONE;
}
@@ -65,7 +87,13 @@ static int hyperv_die_event(struct notifier_block *nb, unsigned long val,
struct die_args *die = (struct die_args *)args;
struct pt_regs *regs = die->regs;
- hyperv_report_panic(regs, val);
+ /*
+ * Hyper-V should be notified only once about a panic. If we will be
+ * doing hyperv_report_panic_msg() later with kmsg data, don't do
+ * the notification here.
+ */
+ if (hyperv_report_reg())
+ hyperv_report_panic(regs, val, true);
return NOTIFY_DONE;
}
@@ -1252,13 +1280,6 @@ static void vmbus_isr(void)
add_interrupt_randomness(HYPERVISOR_CALLBACK_VECTOR, 0);
}
-/*
- * Boolean to control whether to report panic messages over Hyper-V.
- *
- * It can be set via /proc/sys/kernel/hyperv/record_panic_msg
- */
-static int sysctl_record_panic_msg = 1;
-
/*
* Callback from kmsg_dump. Grab as much as possible from the end of the kmsg
* buffer and call into Hyper-V to transfer the data.
@@ -1382,19 +1403,29 @@ static int vmbus_bus_init(void)
hv_panic_page = (void *)hv_alloc_hyperv_zeroed_page();
if (hv_panic_page) {
ret = kmsg_dump_register(&hv_kmsg_dumper);
- if (ret)
+ if (ret) {
pr_err("Hyper-V: kmsg dump register "
"error 0x%x\n", ret);
+ hv_free_hyperv_page(
+ (unsigned long)hv_panic_page);
+ hv_panic_page = NULL;
+ }
} else
pr_err("Hyper-V: panic message page memory "
"allocation failed");
}
register_die_notifier(&hyperv_die_block);
- atomic_notifier_chain_register(&panic_notifier_list,
- &hyperv_panic_block);
}
+ /*
+ * Always register the panic notifier because we need to unload
+ * the VMbus channel connection to prevent any VMbus
+ * activity after the VM panics.
+ */
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &hyperv_panic_block);
+
vmbus_request_offers();
return 0;
@@ -1407,7 +1438,6 @@ static int vmbus_bus_init(void)
hv_remove_vmbus_irq();
bus_unregister(&hv_bus);
- hv_free_hyperv_page((unsigned long)hv_panic_page);
unregister_sysctl_table(hv_ctl_table_hdr);
hv_ctl_table_hdr = NULL;
return ret;
@@ -2204,8 +2234,6 @@ static int vmbus_bus_suspend(struct device *dev)
vmbus_initiate_unload(false);
- vmbus_connection.conn_state = DISCONNECTED;
-
/* Reset the event for the next resume. */
reinit_completion(&vmbus_connection.ready_for_resume_event);
@@ -2289,7 +2317,6 @@ static void hv_kexec_handler(void)
{
hv_stimer_global_cleanup();
vmbus_initiate_unload(false);
- vmbus_connection.conn_state = DISCONNECTED;
/* Make sure conn_state is set as hv_synic_cleanup checks for it */
mb();
cpuhp_remove_state(hyperv_cpuhp_online);
@@ -2306,7 +2333,6 @@ static void hv_crash_handler(struct pt_regs *regs)
* doing the cleanup for current CPU only. This should be sufficient
* for kdump.
*/
- vmbus_connection.conn_state = DISCONNECTED;
cpu = smp_processor_id();
hv_stimer_cleanup(cpu);
hv_synic_disable_regs(cpu);
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index e051edbc43c1..0e35ff06f9af 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -328,6 +328,8 @@ static struct st_sensors_platform_data *st_sensors_dev_probe(struct device *dev,
return NULL;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
if (!device_property_read_u32(dev, "st,drdy-int-pin", &val) && (val <= 2))
pdata->drdy_int_pin = (u8) val;
else
@@ -371,6 +373,8 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
/* If OF/DT pdata exists, it will take precedence of anything else */
of_pdata = st_sensors_dev_probe(indio_dev->dev.parent, pdata);
+ if (IS_ERR(of_pdata))
+ return PTR_ERR(of_pdata);
if (of_pdata)
pdata = of_pdata;
diff --git a/drivers/iio/light/si1133.c b/drivers/iio/light/si1133.c
index 015a21f0c2ef..9174ab928880 100644
--- a/drivers/iio/light/si1133.c
+++ b/drivers/iio/light/si1133.c
@@ -102,6 +102,9 @@
#define SI1133_INPUT_FRACTION_LOW 15
#define SI1133_LUX_OUTPUT_FRACTION 12
#define SI1133_LUX_BUFFER_SIZE 9
+#define SI1133_MEASURE_BUFFER_SIZE 3
+
+#define SI1133_SIGN_BIT_INDEX 23
static const int si1133_scale_available[] = {
1, 2, 4, 8, 16, 32, 64, 128};
@@ -234,13 +237,13 @@ static const struct si1133_lux_coeff lux_coeff = {
}
};
-static int si1133_calculate_polynomial_inner(u32 input, u8 fraction, u16 mag,
+static int si1133_calculate_polynomial_inner(s32 input, u8 fraction, u16 mag,
s8 shift)
{
return ((input << fraction) / mag) << shift;
}
-static int si1133_calculate_output(u32 x, u32 y, u8 x_order, u8 y_order,
+static int si1133_calculate_output(s32 x, s32 y, u8 x_order, u8 y_order,
u8 input_fraction, s8 sign,
const struct si1133_coeff *coeffs)
{
@@ -276,7 +279,7 @@ static int si1133_calculate_output(u32 x, u32 y, u8 x_order, u8 y_order,
* The algorithm is from:
* https://siliconlabs.github.io/Gecko_SDK_Doc/efm32zg/html/si1133_8c_source.html#l00716
*/
-static int si1133_calc_polynomial(u32 x, u32 y, u8 input_fraction, u8 num_coeff,
+static int si1133_calc_polynomial(s32 x, s32 y, u8 input_fraction, u8 num_coeff,
const struct si1133_coeff *coeffs)
{
u8 x_order, y_order;
@@ -614,7 +617,7 @@ static int si1133_measure(struct si1133_data *data,
{
int err;
- __be16 resp;
+ u8 buffer[SI1133_MEASURE_BUFFER_SIZE];
err = si1133_set_adcmux(data, 0, chan->channel);
if (err)
@@ -625,12 +628,13 @@ static int si1133_measure(struct si1133_data *data,
if (err)
return err;
- err = si1133_bulk_read(data, SI1133_REG_HOSTOUT(0), sizeof(resp),
- (u8 *)&resp);
+ err = si1133_bulk_read(data, SI1133_REG_HOSTOUT(0), sizeof(buffer),
+ buffer);
if (err)
return err;
- *val = be16_to_cpu(resp);
+ *val = sign_extend32((buffer[0] << 16) | (buffer[1] << 8) | buffer[2],
+ SI1133_SIGN_BIT_INDEX);
return err;
}
@@ -704,9 +708,9 @@ static int si1133_get_lux(struct si1133_data *data, int *val)
{
int err;
int lux;
- u32 high_vis;
- u32 low_vis;
- u32 ir;
+ s32 high_vis;
+ s32 low_vis;
+ s32 ir;
u8 buffer[SI1133_LUX_BUFFER_SIZE];
/* Activate lux channels */
@@ -719,9 +723,16 @@ static int si1133_get_lux(struct si1133_data *data, int *val)
if (err)
return err;
- high_vis = (buffer[0] << 16) | (buffer[1] << 8) | buffer[2];
- low_vis = (buffer[3] << 16) | (buffer[4] << 8) | buffer[5];
- ir = (buffer[6] << 16) | (buffer[7] << 8) | buffer[8];
+ high_vis =
+ sign_extend32((buffer[0] << 16) | (buffer[1] << 8) | buffer[2],
+ SI1133_SIGN_BIT_INDEX);
+
+ low_vis =
+ sign_extend32((buffer[3] << 16) | (buffer[4] << 8) | buffer[5],
+ SI1133_SIGN_BIT_INDEX);
+
+ ir = sign_extend32((buffer[6] << 16) | (buffer[7] << 8) | buffer[8],
+ SI1133_SIGN_BIT_INDEX);
if (high_vis > SI1133_ADC_THRESHOLD || ir > SI1133_ADC_THRESHOLD)
lux = si1133_calc_polynomial(high_vis, ir,
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index d2fade984999..25149544d57c 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -188,6 +188,7 @@ config INTEL_IOMMU
select NEED_DMA_MAP_STATE
select DMAR_TABLE
select SWIOTLB
+ select IOASID
help
DMA remapping (DMAR) devices support enables independent address
translations for Direct Memory Access (DMA) from devices.
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index f8d01d6b00da..ca8c4522045b 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -348,7 +348,7 @@
#define DTE_GCR3_VAL_A(x) (((x) >> 12) & 0x00007ULL)
#define DTE_GCR3_VAL_B(x) (((x) >> 15) & 0x0ffffULL)
-#define DTE_GCR3_VAL_C(x) (((x) >> 31) & 0xfffffULL)
+#define DTE_GCR3_VAL_C(x) (((x) >> 31) & 0x1fffffULL)
#define DTE_GCR3_INDEX_A 0
#define DTE_GCR3_INDEX_B 1
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 4be549478691..ef0a5246700e 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4501,7 +4501,8 @@ static struct dmar_atsr_unit *dmar_find_atsr(struct acpi_dmar_atsr *atsr)
struct dmar_atsr_unit *atsru;
struct acpi_dmar_atsr *tmp;
- list_for_each_entry_rcu(atsru, &dmar_atsr_units, list) {
+ list_for_each_entry_rcu(atsru, &dmar_atsr_units, list,
+ dmar_rcu_check()) {
tmp = (struct acpi_dmar_atsr *)atsru->hdr;
if (atsr->segment != tmp->segment)
continue;
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index d7f2a5358900..2998418f0a38 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -531,7 +531,7 @@ struct page_req_dsc {
u64 priv_data[2];
};
-#define PRQ_RING_MASK ((0x1000 << PRQ_ORDER) - 0x10)
+#define PRQ_RING_MASK ((0x1000 << PRQ_ORDER) - 0x20)
static bool access_error(struct vm_area_struct *vma, struct page_req_dsc *req)
{
@@ -611,14 +611,15 @@ static irqreturn_t prq_event_thread(int irq, void *d)
* any faults on kernel addresses. */
if (!svm->mm)
goto bad_req;
- /* If the mm is already defunct, don't handle faults. */
- if (!mmget_not_zero(svm->mm))
- goto bad_req;
/* If address is not canonical, return invalid response */
if (!is_canonical_address(address))
goto bad_req;
+ /* If the mm is already defunct, don't handle faults. */
+ if (!mmget_not_zero(svm->mm))
+ goto bad_req;
+
down_read(&svm->mm->mmap_sem);
vma = find_extend_vma(svm->mm, address);
if (!vma || address < vma->vm_start)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index cce329d71fba..5eed75cd121f 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -613,18 +613,20 @@ static int viommu_domain_finalise(struct viommu_dev *viommu,
int ret;
struct viommu_domain *vdomain = to_viommu_domain(domain);
- vdomain->viommu = viommu;
- vdomain->map_flags = viommu->map_flags;
+ ret = ida_alloc_range(&viommu->domain_ids, viommu->first_domain,
+ viommu->last_domain, GFP_KERNEL);
+ if (ret < 0)
+ return ret;
+
+ vdomain->id = (unsigned int)ret;
domain->pgsize_bitmap = viommu->pgsize_bitmap;
domain->geometry = viommu->geometry;
- ret = ida_alloc_range(&viommu->domain_ids, viommu->first_domain,
- viommu->last_domain, GFP_KERNEL);
- if (ret >= 0)
- vdomain->id = (unsigned int)ret;
+ vdomain->map_flags = viommu->map_flags;
+ vdomain->viommu = viommu;
- return ret > 0 ? 0 : ret;
+ return 0;
}
static void viommu_domain_free(struct iommu_domain *domain)
diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
index 6b566bba263b..ff7627b57772 100644
--- a/drivers/irqchip/irq-mbigen.c
+++ b/drivers/irqchip/irq-mbigen.c
@@ -220,10 +220,16 @@ static int mbigen_irq_domain_alloc(struct irq_domain *domain,
return 0;
}
+static void mbigen_irq_domain_free(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs)
+{
+ platform_msi_domain_free(domain, virq, nr_irqs);
+}
+
static const struct irq_domain_ops mbigen_domain_ops = {
.translate = mbigen_domain_translate,
.alloc = mbigen_irq_domain_alloc,
- .free = irq_domain_free_irqs_common,
+ .free = mbigen_irq_domain_free,
};
static int mbigen_of_create_domain(struct platform_device *pdev,
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 1fc40e8af75e..3363a6551a70 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -376,7 +376,7 @@ int led_classdev_register_ext(struct device *parent,
if (ret)
dev_warn(parent, "Led %s renamed to %s due to name collision",
- led_cdev->name, dev_name(led_cdev->dev));
+ proposed_name, dev_name(led_cdev->dev));
if (led_cdev->flags & LED_BRIGHT_HW_CHANGED) {
ret = led_add_brightness_hw_changed(led_cdev);
diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c
index 21f05240682b..33b8216bac30 100644
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@ -1158,6 +1158,11 @@ static void emc_debugfs_init(struct device *dev, struct tegra_emc *emc)
emc->debugfs.max_rate = emc->timings[i].rate;
}
+ if (!emc->num_timings) {
+ emc->debugfs.min_rate = clk_get_rate(emc->clk);
+ emc->debugfs.max_rate = emc->debugfs.min_rate;
+ }
+
err = clk_set_rate_range(emc->clk, emc->debugfs.min_rate,
emc->debugfs.max_rate);
if (err < 0) {
diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c
index 8ae474d9bfb9..b16715e9515d 100644
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@ -628,6 +628,11 @@ static void tegra_emc_debugfs_init(struct tegra_emc *emc)
emc->debugfs.max_rate = emc->timings[i].rate;
}
+ if (!emc->num_timings) {
+ emc->debugfs.min_rate = clk_get_rate(emc->clk);
+ emc->debugfs.max_rate = emc->debugfs.min_rate;
+ }
+
err = clk_set_rate_range(emc->clk, emc->debugfs.min_rate,
emc->debugfs.max_rate);
if (err < 0) {
diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c
index e3efd9529506..b42bdb667e85 100644
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@ -1256,6 +1256,11 @@ static void tegra_emc_debugfs_init(struct tegra_emc *emc)
emc->debugfs.max_rate = emc->timings[i].rate;
}
+ if (!emc->num_timings) {
+ emc->debugfs.min_rate = clk_get_rate(emc->clk);
+ emc->debugfs.max_rate = emc->debugfs.min_rate;
+ }
+
err = clk_set_rate_range(emc->clk, emc->debugfs.min_rate,
emc->debugfs.max_rate);
if (err < 0) {
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 39e611695053..32c2b912b58b 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -211,7 +211,7 @@ static int ec_device_probe(struct platform_device *pdev)
* explicitly added on platforms that don't have the PD notifier ACPI
* device entry defined.
*/
- if (IS_ENABLED(CONFIG_OF)) {
+ if (IS_ENABLED(CONFIG_OF) && ec->ec_dev->dev->of_node) {
if (cros_ec_check_features(ec, EC_FEATURE_USB_PD)) {
retval = mfd_add_hotplug_devices(ec->dev,
cros_usbpd_notify_cells,
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index 931e5c2481b5..b50ec7ecd10c 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -243,22 +243,25 @@ static int phram_setup(const char *val)
ret = parse_num64(&start, token[1]);
if (ret) {
- kfree(name);
parse_err("illegal start address\n");
+ goto error;
}
ret = parse_num64(&len, token[2]);
if (ret) {
- kfree(name);
parse_err("illegal device length\n");
+ goto error;
}
ret = register_device(name, start, len);
- if (!ret)
- pr_info("%s device: %#llx at %#llx\n", name, len, start);
- else
- kfree(name);
+ if (ret)
+ goto error;
+
+ pr_info("%s device: %#llx at %#llx\n", name, len, start);
+ return 0;
+error:
+ kfree(name);
return ret;
}
diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index 1efc643c9871..9341a8a592e8 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -68,7 +68,6 @@ struct mtd_info *lpddr_cmdset(struct map_info *map)
shared = kmalloc_array(lpddr->numchips, sizeof(struct flchip_shared),
GFP_KERNEL);
if (!shared) {
- kfree(lpddr);
kfree(mtd);
return NULL;
}
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index f64e3b6605c6..47c63968fa45 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5907,6 +5907,8 @@ void nand_cleanup(struct nand_chip *chip)
chip->ecc.algo == NAND_ECC_BCH)
nand_bch_free((struct nand_bch_control *)chip->ecc.priv);
+ nanddev_cleanup(&chip->base);
+
/* Free bad block table memory */
kfree(chip->bbt);
kfree(chip->data_buf);
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 5750c45019d8..8dda51bbdd11 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -609,6 +609,7 @@ static int spinand_markbad(struct nand_device *nand, const struct nand_pos *pos)
.ooboffs = 0,
.ooblen = sizeof(marker),
.oobbuf.out = marker,
+ .mode = MTD_OPS_RAW,
};
int ret;
diff --git a/drivers/net/dsa/bcm_sf2_cfp.c b/drivers/net/dsa/bcm_sf2_cfp.c
index 1962c8330daa..f9785027c096 100644
--- a/drivers/net/dsa/bcm_sf2_cfp.c
+++ b/drivers/net/dsa/bcm_sf2_cfp.c
@@ -882,17 +882,14 @@ static int bcm_sf2_cfp_rule_set(struct dsa_switch *ds, int port,
fs->m_ext.data[1]))
return -EINVAL;
- if (fs->location != RX_CLS_LOC_ANY && fs->location >= CFP_NUM_RULES)
+ if (fs->location != RX_CLS_LOC_ANY &&
+ fs->location > bcm_sf2_cfp_rule_size(priv))
return -EINVAL;
if (fs->location != RX_CLS_LOC_ANY &&
test_bit(fs->location, priv->cfp.used))
return -EBUSY;
- if (fs->location != RX_CLS_LOC_ANY &&
- fs->location > bcm_sf2_cfp_rule_size(priv))
- return -EINVAL;
-
ret = bcm_sf2_cfp_rule_cmp(priv, port, fs);
if (ret == 0)
return -EEXIST;
@@ -973,7 +970,7 @@ static int bcm_sf2_cfp_rule_del(struct bcm_sf2_priv *priv, int port, u32 loc)
struct cfp_rule *rule;
int ret;
- if (loc >= CFP_NUM_RULES)
+ if (loc > bcm_sf2_cfp_rule_size(priv))
return -EINVAL;
/* Refuse deleting unused rules, and those that are not unique since
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index d2cfa247abc8..9710cdecb63a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1535,6 +1535,10 @@ static int mlx5e_set_fecparam(struct net_device *netdev,
int mode;
int err;
+ if (bitmap_weight((unsigned long *)&fecparam->fec,
+ ETHTOOL_FEC_BASER_BIT + 1) > 1)
+ return -EOPNOTSUPP;
+
for (mode = 0; mode < ARRAY_SIZE(pplm_fec_2_ethtool); mode++) {
if (!(pplm_fec_2_ethtool[mode] & fecparam->fec))
continue;
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 061aada4748a..9b4ae5c36da6 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -2398,6 +2398,9 @@ static int macsec_upd_offload(struct sk_buff *skb, struct genl_info *info)
return PTR_ERR(dev);
macsec = macsec_priv(dev);
+ if (!tb_offload[MACSEC_OFFLOAD_ATTR_TYPE])
+ return -EINVAL;
+
offload = nla_get_u8(tb_offload[MACSEC_OFFLOAD_ATTR_TYPE]);
if (macsec->offload == offload)
return 0;
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index a8b515968569..09087c38fabd 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -1042,8 +1042,10 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm,
return -EFAULT;
}
- if (!desc || (desc->out_num + desc->in_num == 0) ||
- !test_bit(cmd, &cmd_mask))
+ if (!desc ||
+ (desc->out_num + desc->in_num == 0) ||
+ cmd > ND_CMD_CALL ||
+ !test_bit(cmd, &cmd_mask))
return -ENOTTY;
/* fail write commands (when read-only) */
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index c9219fddf44b..50bbe0edf538 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -261,6 +261,8 @@ static struct property *dup_and_fixup_symbol_prop(
of_property_set_flag(new_prop, OF_DYNAMIC);
+ kfree(target_path);
+
return new_prop;
err_free_new_prop:
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 68b87587b2ef..7199aaafd304 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -777,6 +777,10 @@ static void __init of_unittest_changeset(void)
unittest(!of_changeset_revert(&chgset), "revert failed\n");
of_changeset_destroy(&chgset);
+
+ of_node_put(n1);
+ of_node_put(n2);
+ of_node_put(n21);
#endif
}
@@ -1151,10 +1155,13 @@ static void __init of_unittest_platform_populate(void)
of_platform_populate(np, match, NULL, &test_bus->dev);
for_each_child_of_node(np, child) {
- for_each_child_of_node(child, grandchild)
- unittest(of_find_device_by_node(grandchild),
+ for_each_child_of_node(child, grandchild) {
+ pdev = of_find_device_by_node(grandchild);
+ unittest(pdev,
"Could not create device for node '%pOFn'\n",
grandchild);
+ of_dev_put(pdev);
+ }
}
of_platform_depopulate(&test_bus->dev);
@@ -2564,8 +2571,11 @@ static __init void of_unittest_overlay_high_level(void)
goto err_unlock;
}
if (__of_add_property(of_symbols, new_prop)) {
+ kfree(new_prop->name);
+ kfree(new_prop->value);
+ kfree(new_prop);
/* "name" auto-generated by unflatten */
- if (!strcmp(new_prop->name, "name"))
+ if (!strcmp(prop->name, "name"))
continue;
unittest(0, "duplicate property '%s' in overlay_base node __symbols__",
prop->name);
diff --git a/drivers/phy/socionext/phy-uniphier-usb3ss.c b/drivers/phy/socionext/phy-uniphier-usb3ss.c
index ec231e40ef2a..a7577e316baf 100644
--- a/drivers/phy/socionext/phy-uniphier-usb3ss.c
+++ b/drivers/phy/socionext/phy-uniphier-usb3ss.c
@@ -314,6 +314,10 @@ static const struct of_device_id uniphier_u3ssphy_match[] = {
.compatible = "socionext,uniphier-pro4-usb3-ssphy",
.data = &uniphier_pro4_data,
},
+ {
+ .compatible = "socionext,uniphier-pro5-usb3-ssphy",
+ .data = &uniphier_pro4_data,
+ },
{
.compatible = "socionext,uniphier-pxs2-usb3-ssphy",
.data = &uniphier_pxs2_data,
diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c
index 6fc8f2c3ac51..7ee43b2e0654 100644
--- a/drivers/platform/chrome/cros_ec.c
+++ b/drivers/platform/chrome/cros_ec.c
@@ -138,6 +138,24 @@ static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event)
return ret;
}
+static int cros_ec_ready_event(struct notifier_block *nb,
+ unsigned long queued_during_suspend,
+ void *_notify)
+{
+ struct cros_ec_device *ec_dev = container_of(nb, struct cros_ec_device,
+ notifier_ready);
+ u32 host_event = cros_ec_get_host_event(ec_dev);
+
+ if (host_event & EC_HOST_EVENT_MASK(EC_HOST_EVENT_INTERFACE_READY)) {
+ mutex_lock(&ec_dev->lock);
+ cros_ec_query_all(ec_dev);
+ mutex_unlock(&ec_dev->lock);
+ return NOTIFY_OK;
+ }
+
+ return NOTIFY_DONE;
+}
+
/**
* cros_ec_register() - Register a new ChromeOS EC, using the provided info.
* @ec_dev: Device to register.
@@ -237,6 +255,18 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
dev_dbg(ec_dev->dev, "Error %d clearing sleep event to ec",
err);
+ if (ec_dev->mkbp_event_supported) {
+ /*
+ * Register the notifier for EC_HOST_EVENT_INTERFACE_READY
+ * event.
+ */
+ ec_dev->notifier_ready.notifier_call = cros_ec_ready_event;
+ err = blocking_notifier_chain_register(&ec_dev->event_notifier,
+ &ec_dev->notifier_ready);
+ if (err)
+ return err;
+ }
+
dev_info(dev, "Chrome EC device registered\n");
return 0;
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index 43d590250228..9c0e6e0fabdf 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -19,8 +19,8 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("Alex Hung");
static const struct acpi_device_id intel_hid_ids[] = {
- {"INT1051", 0},
{"INT33D5", 0},
+ {"INTC1051", 0},
{"", 0},
};
diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c
index e1bc4e6e6f30..f40fa0e63b6e 100644
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -706,14 +706,14 @@ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
{
/* Intel Cherry Trail Compute Stick, Windows version */
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
DMI_MATCH(DMI_PRODUCT_NAME, "STK1AW32SC"),
},
},
{
/* Intel Cherry Trail Compute Stick, version without an OS */
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
DMI_MATCH(DMI_PRODUCT_NAME, "STK1A32SC"),
},
},
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 195c18c2f426..664e50103eaa 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1885,7 +1885,10 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);
if (IS_ERR(di->bat)) {
- dev_err(di->dev, "failed to register battery\n");
+ if (PTR_ERR(di->bat) == -EPROBE_DEFER)
+ dev_dbg(di->dev, "failed to register battery, deferring probe\n");
+ else
+ dev_err(di->dev, "failed to register battery\n");
return PTR_ERR(di->bat);
}
diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c
index 4743b16a8d84..1526402e126b 100644
--- a/drivers/rtc/rtc-88pm860x.c
+++ b/drivers/rtc/rtc-88pm860x.c
@@ -336,6 +336,10 @@ static int pm860x_rtc_probe(struct platform_device *pdev)
info->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, info);
+ info->rtc_dev = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(info->rtc_dev))
+ return PTR_ERR(info->rtc_dev);
+
ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
rtc_update_handler, IRQF_ONESHOT, "rtc",
info);
@@ -377,13 +381,11 @@ static int pm860x_rtc_probe(struct platform_device *pdev)
}
}
- info->rtc_dev = devm_rtc_device_register(&pdev->dev, "88pm860x-rtc",
- &pm860x_rtc_ops, THIS_MODULE);
- ret = PTR_ERR(info->rtc_dev);
- if (IS_ERR(info->rtc_dev)) {
- dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
+ info->rtc_dev->ops = &pm860x_rtc_ops;
+
+ ret = rtc_register_device(info->rtc_dev);
+ if (ret)
return ret;
- }
/*
* enable internal XO instead of internal 3.25MHz clock since it can
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4e6af592f018..9c0ee192f0f9 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -793,8 +793,10 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
"sg_common_write: scsi opcode=0x%02x, cmd_size=%d\n",
(int) cmnd[0], (int) hp->cmd_len));
- if (hp->dxfer_len >= SZ_256M)
+ if (hp->dxfer_len >= SZ_256M) {
+ sg_remove_request(sfp, srp);
return -EINVAL;
+ }
k = sg_start_req(srp, cmnd);
if (k) {
diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
index 98b9d9a902ae..90a8b2c0676f 100644
--- a/drivers/soc/imx/gpc.c
+++ b/drivers/soc/imx/gpc.c
@@ -87,8 +87,8 @@ static int imx6_pm_domain_power_off(struct generic_pm_domain *genpd)
static int imx6_pm_domain_power_on(struct generic_pm_domain *genpd)
{
struct imx_pm_domain *pd = to_imx_pm_domain(genpd);
- int i, ret, sw, sw2iso;
- u32 val;
+ int i, ret;
+ u32 val, req;
if (pd->supply) {
ret = regulator_enable(pd->supply);
@@ -107,17 +107,18 @@ static int imx6_pm_domain_power_on(struct generic_pm_domain *genpd)
regmap_update_bits(pd->regmap, pd->reg_offs + GPC_PGC_CTRL_OFFS,
0x1, 0x1);
- /* Read ISO and ISO2SW power up delays */
- regmap_read(pd->regmap, pd->reg_offs + GPC_PGC_PUPSCR_OFFS, &val);
- sw = val & 0x3f;
- sw2iso = (val >> 8) & 0x3f;
-
/* Request GPC to power up domain */
- val = BIT(pd->cntr_pdn_bit + 1);
- regmap_update_bits(pd->regmap, GPC_CNTR, val, val);
+ req = BIT(pd->cntr_pdn_bit + 1);
+ regmap_update_bits(pd->regmap, GPC_CNTR, req, req);
- /* Wait ISO + ISO2SW IPG clock cycles */
- udelay(DIV_ROUND_UP(sw + sw2iso, pd->ipg_rate_mhz));
+ /* Wait for the PGC to handle the request */
+ ret = regmap_read_poll_timeout(pd->regmap, GPC_CNTR, val, !(val & req),
+ 1, 50);
+ if (ret)
+ pr_err("powerup request on domain %s timed out\n", genpd->name);
+
+ /* Wait for reset to propagate through peripherals */
+ usleep_range(5, 10);
/* Disable reset clocks for all devices in the domain */
for (i = 0; i < pd->num_clks; i++)
@@ -343,6 +344,7 @@ static const struct regmap_config imx_gpc_regmap_config = {
.rd_table = &access_table,
.wr_table = &access_table,
.max_register = 0x2ac,
+ .fast_io = true,
};
static struct generic_pm_domain *imx_gpc_onecell_domains[] = {
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 5a05db5438d6..5a0df0e54ce3 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -265,6 +265,7 @@ config QORIQ_THERMAL
tristate "QorIQ Thermal Monitoring Unit"
depends on THERMAL_OF
depends on HAS_IOMEM
+ select REGMAP_MMIO
help
Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms.
It supports one critical trip point and one passive trip point. The
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index fe83d7a210d4..af55ac08e1bd 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -431,6 +431,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
unsigned long state)
{
struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
+ int ret;
/* Request state should be less than max_level */
if (WARN_ON(state > cpufreq_cdev->max_level))
@@ -442,8 +443,9 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
cpufreq_cdev->cpufreq_state = state;
- return freq_qos_update_request(&cpufreq_cdev->qos_req,
- get_state_freq(cpufreq_cdev, state));
+ ret = freq_qos_update_request(&cpufreq_cdev->qos_req,
+ get_state_freq(cpufreq_cdev, state));
+ return ret < 0 ? ret : 0;
}
/* Bind cpufreq callbacks to thermal cooling device ops */
diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
index c8d57ee0a5bb..2cc276cdfcdb 100644
--- a/drivers/thermal/qcom/tsens-common.c
+++ b/drivers/thermal/qcom/tsens-common.c
@@ -602,7 +602,7 @@ int __init init_common(struct tsens_priv *priv)
/* DT with separate SROT and TM address space */
priv->tm_offset = 0;
res = platform_get_resource(op, IORESOURCE_MEM, 1);
- srot_base = devm_ioremap_resource(&op->dev, res);
+ srot_base = devm_ioremap_resource(dev, res);
if (IS_ERR(srot_base)) {
ret = PTR_ERR(srot_base);
goto err_put_device;
@@ -620,7 +620,7 @@ int __init init_common(struct tsens_priv *priv)
}
res = platform_get_resource(op, IORESOURCE_MEM, 0);
- tm_base = devm_ioremap_resource(&op->dev, res);
+ tm_base = devm_ioremap_resource(dev, res);
if (IS_ERR(tm_base)) {
ret = PTR_ERR(tm_base);
goto err_put_device;
@@ -687,8 +687,6 @@ int __init init_common(struct tsens_priv *priv)
tsens_enable_irq(priv);
tsens_debug_init(op);
- return 0;
-
err_put_device:
put_device(&op->dev);
return ret;
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index 769e0a5d1dfc..3c6dd06ec5fb 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -136,6 +136,21 @@ static int find_console_handle(void)
return 1;
}
+static unsigned int local_ev_byte_channel_send(unsigned int handle,
+ unsigned int *count,
+ const char *p)
+{
+ char buffer[EV_BYTE_CHANNEL_MAX_BYTES];
+ unsigned int c = *count;
+
+ if (c < sizeof(buffer)) {
+ memcpy(buffer, p, c);
+ memset(&buffer[c], 0, sizeof(buffer) - c);
+ p = buffer;
+ }
+ return ev_byte_channel_send(handle, count, p);
+}
+
/*************************** EARLY CONSOLE DRIVER ***************************/
#ifdef CONFIG_PPC_EARLY_DEBUG_EHV_BC
@@ -154,7 +169,7 @@ static void byte_channel_spin_send(const char data)
do {
count = 1;
- ret = ev_byte_channel_send(CONFIG_PPC_EARLY_DEBUG_EHV_BC_HANDLE,
+ ret = local_ev_byte_channel_send(CONFIG_PPC_EARLY_DEBUG_EHV_BC_HANDLE,
&count, &data);
} while (ret == EV_EAGAIN);
}
@@ -221,7 +236,7 @@ static int ehv_bc_console_byte_channel_send(unsigned int handle, const char *s,
while (count) {
len = min_t(unsigned int, count, EV_BYTE_CHANNEL_MAX_BYTES);
do {
- ret = ev_byte_channel_send(handle, &len, s);
+ ret = local_ev_byte_channel_send(handle, &len, s);
} while (ret == EV_EAGAIN);
count -= len;
s += len;
@@ -401,7 +416,7 @@ static void ehv_bc_tx_dequeue(struct ehv_bc_data *bc)
CIRC_CNT_TO_END(bc->head, bc->tail, BUF_SIZE),
EV_BYTE_CHANNEL_MAX_BYTES);
- ret = ev_byte_channel_send(bc->handle, &len, bc->buf + bc->tail);
+ ret = local_ev_byte_channel_send(bc->handle, &len, bc->buf + bc->tail);
/* 'len' is valid only if the return code is 0 or EV_EAGAIN */
if (!ret || (ret == EV_EAGAIN))
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index d04554959ea7..30e73ec4ad5c 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -663,20 +663,20 @@ int fb_prepare_logo(struct fb_info *info, int rotate)
fb_logo.depth = 1;
- if (fb_logo.depth > 4 && depth > 4) {
- switch (info->fix.visual) {
- case FB_VISUAL_TRUECOLOR:
- fb_logo.needs_truepalette = 1;
- break;
- case FB_VISUAL_DIRECTCOLOR:
- fb_logo.needs_directpalette = 1;
- fb_logo.needs_cmapreset = 1;
- break;
- case FB_VISUAL_PSEUDOCOLOR:
- fb_logo.needs_cmapreset = 1;
- break;
- }
- }
+ if (fb_logo.depth > 4 && depth > 4) {
+ switch (info->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ fb_logo.needs_truepalette = 1;
+ break;
+ case FB_VISUAL_DIRECTCOLOR:
+ fb_logo.needs_directpalette = 1;
+ fb_logo.needs_cmapreset = 1;
+ break;
+ case FB_VISUAL_PSEUDOCOLOR:
+ fb_logo.needs_cmapreset = 1;
+ break;
+ }
+ }
height = fb_logo.logo->height;
if (fb_center_logo)
@@ -1065,19 +1065,19 @@ fb_blank(struct fb_info *info, int blank)
struct fb_event event;
int ret = -EINVAL;
- if (blank > FB_BLANK_POWERDOWN)
- blank = FB_BLANK_POWERDOWN;
+ if (blank > FB_BLANK_POWERDOWN)
+ blank = FB_BLANK_POWERDOWN;
event.info = info;
event.data = ␣
if (info->fbops->fb_blank)
- ret = info->fbops->fb_blank(blank, info);
+ ret = info->fbops->fb_blank(blank, info);
if (!ret)
fb_notifier_call_chain(FB_EVENT_BLANK, &event);
- return ret;
+ return ret;
}
EXPORT_SYMBOL(fb_blank);
@@ -1115,7 +1115,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
break;
case FBIOGET_FSCREENINFO:
lock_fb_info(info);
- fix = info->fix;
+ memcpy(&fix, &info->fix, sizeof(fix));
if (info->flags & FBINFO_HIDE_SMEM_START)
fix.smem_start = 0;
unlock_fb_info(info);
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 341458fd95ca..44375a22307b 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/balloon_compaction.h>
+#include <linux/oom.h>
#include <linux/wait.h>
#include <linux/mm.h>
#include <linux/mount.h>
@@ -27,7 +28,9 @@
*/
#define VIRTIO_BALLOON_PAGES_PER_PAGE (unsigned)(PAGE_SIZE >> VIRTIO_BALLOON_PFN_SHIFT)
#define VIRTIO_BALLOON_ARRAY_PFNS_MAX 256
-#define VIRTBALLOON_OOM_NOTIFY_PRIORITY 80
+/* Maximum number of (4k) pages to deflate on OOM notifications. */
+#define VIRTIO_BALLOON_OOM_NR_PAGES 256
+#define VIRTIO_BALLOON_OOM_NOTIFY_PRIORITY 80
#define VIRTIO_BALLOON_FREE_PAGE_ALLOC_FLAG (__GFP_NORETRY | __GFP_NOWARN | \
__GFP_NOMEMALLOC)
@@ -112,8 +115,11 @@ struct virtio_balloon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
};
static struct virtio_device_id id_table[] = {
@@ -788,50 +794,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
-static unsigned long leak_balloon_pages(struct virtio_balloon *vb,
- unsigned long pages_to_free)
-{
- return leak_balloon(vb, pages_to_free * VIRTIO_BALLOON_PAGES_PER_PAGE) /
- VIRTIO_BALLOON_PAGES_PER_PAGE;
-}
-
-static unsigned long shrink_balloon_pages(struct virtio_balloon *vb,
- unsigned long pages_to_free)
-{
- unsigned long pages_freed = 0;
-
- /*
- * One invocation of leak_balloon can deflate at most
- * VIRTIO_BALLOON_ARRAY_PFNS_MAX balloon pages, so we call it
- * multiple times to deflate pages till reaching pages_to_free.
- */
- while (vb->num_pages && pages_freed < pages_to_free)
- pages_freed += leak_balloon_pages(vb,
- pages_to_free - pages_freed);
-
- update_balloon_size(vb);
-
- return pages_freed;
-}
-
static unsigned long virtio_balloon_shrinker_scan(struct shrinker *shrinker,
struct shrink_control *sc)
{
- unsigned long pages_to_free, pages_freed = 0;
struct virtio_balloon *vb = container_of(shrinker,
struct virtio_balloon, shrinker);
- pages_to_free = sc->nr_to_scan;
-
- if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_FREE_PAGE_HINT))
- pages_freed = shrink_free_pages(vb, pages_to_free);
-
- if (pages_freed >= pages_to_free)
- return pages_freed;
-
- pages_freed += shrink_balloon_pages(vb, pages_to_free - pages_freed);
-
- return pages_freed;
+ return shrink_free_pages(vb, sc->nr_to_scan);
}
static unsigned long virtio_balloon_shrinker_count(struct shrinker *shrinker,
@@ -839,26 +808,22 @@ static unsigned long virtio_balloon_shrinker_count(struct shrinker *shrinker,
{
struct virtio_balloon *vb = container_of(shrinker,
struct virtio_balloon, shrinker);
- unsigned long count;
-
- count = vb->num_pages / VIRTIO_BALLOON_PAGES_PER_PAGE;
- count += vb->num_free_page_blocks * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
- return count;
+ return vb->num_free_page_blocks * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
-static void virtio_balloon_unregister_shrinker(struct virtio_balloon *vb)
+static int virtio_balloon_oom_notify(struct notifier_block *nb,
+ unsigned long dummy, void *parm)
{
- unregister_shrinker(&vb->shrinker);
-}
+ struct virtio_balloon *vb = container_of(nb,
+ struct virtio_balloon, oom_nb);
+ unsigned long *freed = parm;
-static int virtio_balloon_register_shrinker(struct virtio_balloon *vb)
-{
- vb->shrinker.scan_objects = virtio_balloon_shrinker_scan;
- vb->shrinker.count_objects = virtio_balloon_shrinker_count;
- vb->shrinker.seeks = DEFAULT_SEEKS;
+ *freed += leak_balloon(vb, VIRTIO_BALLOON_OOM_NR_PAGES) /
+ VIRTIO_BALLOON_PAGES_PER_PAGE;
+ update_balloon_size(vb);
- return register_shrinker(&vb->shrinker);
+ return NOTIFY_OK;
}
static int virtballoon_probe(struct virtio_device *vdev)
@@ -935,22 +900,35 @@ static int virtballoon_probe(struct virtio_device *vdev)
virtio_cwrite(vb->vdev, struct virtio_balloon_config,
poison_val, &poison_val);
}
- }
- /*
- * We continue to use VIRTIO_BALLOON_F_DEFLATE_ON_OOM to decide if a
- * shrinker needs to be registered to relieve memory pressure.
- */
- if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) {
- err = virtio_balloon_register_shrinker(vb);
+
+ /*
+ * We're allowed to reuse any free pages, even if they are
+ * still to be processed by the host.
+ */
+ vb->shrinker.scan_objects = virtio_balloon_shrinker_scan;
+ vb->shrinker.count_objects = virtio_balloon_shrinker_count;
+ vb->shrinker.seeks = DEFAULT_SEEKS;
+ err = register_shrinker(&vb->shrinker);
if (err)
goto out_del_balloon_wq;
}
+ if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) {
+ vb->oom_nb.notifier_call = virtio_balloon_oom_notify;
+ vb->oom_nb.priority = VIRTIO_BALLOON_OOM_NOTIFY_PRIORITY;
+ err = register_oom_notifier(&vb->oom_nb);
+ if (err < 0)
+ goto out_unregister_shrinker;
+ }
+
virtio_device_ready(vdev);
if (towards_target(vb))
virtballoon_changed(vdev);
return 0;
+out_unregister_shrinker:
+ if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_FREE_PAGE_HINT))
+ unregister_shrinker(&vb->shrinker);
out_del_balloon_wq:
if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_FREE_PAGE_HINT))
destroy_workqueue(vb->balloon_wq);
@@ -989,8 +967,11 @@ static void virtballoon_remove(struct virtio_device *vdev)
{
struct virtio_balloon *vb = vdev->priv;
- if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
- virtio_balloon_unregister_shrinker(vb);
+ if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
+ unregister_oom_notifier(&vb->oom_nb);
+ if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_FREE_PAGE_HINT))
+ unregister_shrinker(&vb->shrinker);
+
spin_lock_irq(&vb->stop_update_lock);
vb->stop_update = true;
spin_unlock_irq(&vb->stop_update_lock);
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index 53e04926a7b2..190d26e2e75f 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -137,10 +137,14 @@ wdt_restart(struct watchdog_device *wdd, unsigned long mode, void *cmd)
{
struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);
+ writel_relaxed(UNLOCK, wdt->base + WDTLOCK);
writel_relaxed(0, wdt->base + WDTCONTROL);
writel_relaxed(0, wdt->base + WDTLOAD);
writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL);
+ /* Flush posted writes. */
+ readl_relaxed(wdt->base + WDTLOCK);
+
return 0;
}
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 5c794f4b051a..d1e1caa23c8b 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -1032,7 +1032,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
struct dentry *parent;
struct inode *inode;
struct key *key;
- afs_dataversion_t dir_version;
+ afs_dataversion_t dir_version, invalid_before;
long de_version;
int ret;
@@ -1084,8 +1084,8 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
if (de_version == (long)dir_version)
goto out_valid_noupdate;
- dir_version = dir->invalid_before;
- if (de_version - (long)dir_version >= 0)
+ invalid_before = dir->invalid_before;
+ if (de_version - (long)invalid_before >= 0)
goto out_valid;
_debug("dir modified");
@@ -1275,6 +1275,7 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct afs_fs_cursor fc;
struct afs_vnode *dvnode = AFS_FS_I(dir);
struct key *key;
+ afs_dataversion_t data_version;
int ret;
mode |= S_IFDIR;
@@ -1295,7 +1296,7 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
- afs_dataversion_t data_version = dvnode->status.data_version + 1;
+ data_version = dvnode->status.data_version + 1;
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
@@ -1316,10 +1317,14 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
goto error_key;
}
- if (ret == 0 &&
- test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
- afs_edit_dir_add(dvnode, &dentry->d_name, &iget_data.fid,
- afs_edit_dir_for_create);
+ if (ret == 0) {
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == data_version)
+ afs_edit_dir_add(dvnode, &dentry->d_name, &iget_data.fid,
+ afs_edit_dir_for_create);
+ up_write(&dvnode->validate_lock);
+ }
key_put(key);
kfree(scb);
@@ -1360,6 +1365,7 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
struct afs_fs_cursor fc;
struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode = NULL;
struct key *key;
+ afs_dataversion_t data_version;
int ret;
_enter("{%llx:%llu},{%pd}",
@@ -1391,7 +1397,7 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
- afs_dataversion_t data_version = dvnode->status.data_version + 1;
+ data_version = dvnode->status.data_version + 1;
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
@@ -1404,9 +1410,12 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
ret = afs_end_vnode_operation(&fc);
if (ret == 0) {
afs_dir_remove_subdir(dentry);
- if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == data_version)
afs_edit_dir_remove(dvnode, &dentry->d_name,
afs_edit_dir_for_rmdir);
+ up_write(&dvnode->validate_lock);
}
}
@@ -1544,10 +1553,15 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
ret = afs_end_vnode_operation(&fc);
if (ret == 0 && !(scb[1].have_status || scb[1].have_error))
ret = afs_dir_remove_link(dvnode, dentry, key);
- if (ret == 0 &&
- test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
- afs_edit_dir_remove(dvnode, &dentry->d_name,
- afs_edit_dir_for_unlink);
+
+ if (ret == 0) {
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == data_version)
+ afs_edit_dir_remove(dvnode, &dentry->d_name,
+ afs_edit_dir_for_unlink);
+ up_write(&dvnode->validate_lock);
+ }
}
if (need_rehash && ret < 0 && ret != -ENOENT)
@@ -1573,6 +1587,7 @@ static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct afs_status_cb *scb;
struct afs_vnode *dvnode = AFS_FS_I(dir);
struct key *key;
+ afs_dataversion_t data_version;
int ret;
mode |= S_IFREG;
@@ -1597,7 +1612,7 @@ static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
- afs_dataversion_t data_version = dvnode->status.data_version + 1;
+ data_version = dvnode->status.data_version + 1;
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
@@ -1618,9 +1633,12 @@ static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
goto error_key;
}
- if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == data_version)
afs_edit_dir_add(dvnode, &dentry->d_name, &iget_data.fid,
afs_edit_dir_for_create);
+ up_write(&dvnode->validate_lock);
kfree(scb);
key_put(key);
@@ -1648,6 +1666,7 @@ static int afs_link(struct dentry *from, struct inode *dir,
struct afs_vnode *dvnode = AFS_FS_I(dir);
struct afs_vnode *vnode = AFS_FS_I(d_inode(from));
struct key *key;
+ afs_dataversion_t data_version;
int ret;
_enter("{%llx:%llu},{%llx:%llu},{%pd}",
@@ -1672,7 +1691,7 @@ static int afs_link(struct dentry *from, struct inode *dir,
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
- afs_dataversion_t data_version = dvnode->status.data_version + 1;
+ data_version = dvnode->status.data_version + 1;
if (mutex_lock_interruptible_nested(&vnode->io_lock, 1) < 0) {
afs_end_vnode_operation(&fc);
@@ -1702,9 +1721,12 @@ static int afs_link(struct dentry *from, struct inode *dir,
goto error_key;
}
- if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == data_version)
afs_edit_dir_add(dvnode, &dentry->d_name, &vnode->fid,
afs_edit_dir_for_link);
+ up_write(&dvnode->validate_lock);
key_put(key);
kfree(scb);
@@ -1732,6 +1754,7 @@ static int afs_symlink(struct inode *dir, struct dentry *dentry,
struct afs_status_cb *scb;
struct afs_vnode *dvnode = AFS_FS_I(dir);
struct key *key;
+ afs_dataversion_t data_version;
int ret;
_enter("{%llx:%llu},{%pd},%s",
@@ -1759,7 +1782,7 @@ static int afs_symlink(struct inode *dir, struct dentry *dentry,
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
- afs_dataversion_t data_version = dvnode->status.data_version + 1;
+ data_version = dvnode->status.data_version + 1;
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
@@ -1780,9 +1803,12 @@ static int afs_symlink(struct inode *dir, struct dentry *dentry,
goto error_key;
}
- if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == data_version)
afs_edit_dir_add(dvnode, &dentry->d_name, &iget_data.fid,
afs_edit_dir_for_symlink);
+ up_write(&dvnode->validate_lock);
key_put(key);
kfree(scb);
@@ -1812,6 +1838,8 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct dentry *tmp = NULL, *rehash = NULL;
struct inode *new_inode;
struct key *key;
+ afs_dataversion_t orig_data_version;
+ afs_dataversion_t new_data_version;
bool new_negative = d_is_negative(new_dentry);
int ret;
@@ -1890,10 +1918,6 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
ret = -ERESTARTSYS;
if (afs_begin_vnode_operation(&fc, orig_dvnode, key, true)) {
- afs_dataversion_t orig_data_version;
- afs_dataversion_t new_data_version;
- struct afs_status_cb *new_scb = &scb[1];
-
orig_data_version = orig_dvnode->status.data_version + 1;
if (orig_dvnode != new_dvnode) {
@@ -1904,7 +1928,6 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
new_data_version = new_dvnode->status.data_version + 1;
} else {
new_data_version = orig_data_version;
- new_scb = &scb[0];
}
while (afs_select_fileserver(&fc)) {
@@ -1912,7 +1935,7 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
fc.cb_break_2 = afs_calc_vnode_cb_break(new_dvnode);
afs_fs_rename(&fc, old_dentry->d_name.name,
new_dvnode, new_dentry->d_name.name,
- &scb[0], new_scb);
+ &scb[0], &scb[1]);
}
afs_vnode_commit_status(&fc, orig_dvnode, fc.cb_break,
@@ -1930,18 +1953,25 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (ret == 0) {
if (rehash)
d_rehash(rehash);
- if (test_bit(AFS_VNODE_DIR_VALID, &orig_dvnode->flags))
- afs_edit_dir_remove(orig_dvnode, &old_dentry->d_name,
- afs_edit_dir_for_rename_0);
+ down_write(&orig_dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &orig_dvnode->flags) &&
+ orig_dvnode->status.data_version == orig_data_version)
+ afs_edit_dir_remove(orig_dvnode, &old_dentry->d_name,
+ afs_edit_dir_for_rename_0);
+ if (orig_dvnode != new_dvnode) {
+ up_write(&orig_dvnode->validate_lock);
- if (!new_negative &&
- test_bit(AFS_VNODE_DIR_VALID, &new_dvnode->flags))
- afs_edit_dir_remove(new_dvnode, &new_dentry->d_name,
- afs_edit_dir_for_rename_1);
+ down_write(&new_dvnode->validate_lock);
+ }
+ if (test_bit(AFS_VNODE_DIR_VALID, &new_dvnode->flags) &&
+ orig_dvnode->status.data_version == new_data_version) {
+ if (!new_negative)
+ afs_edit_dir_remove(new_dvnode, &new_dentry->d_name,
+ afs_edit_dir_for_rename_1);
- if (test_bit(AFS_VNODE_DIR_VALID, &new_dvnode->flags))
afs_edit_dir_add(new_dvnode, &new_dentry->d_name,
&vnode->fid, afs_edit_dir_for_rename_2);
+ }
new_inode = d_inode(new_dentry);
if (new_inode) {
@@ -1957,14 +1987,10 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
* Note that if we ever implement RENAME_EXCHANGE, we'll have
* to update both dentries with opposing dir versions.
*/
- if (new_dvnode != orig_dvnode) {
- afs_update_dentry_version(&fc, old_dentry, &scb[1]);
- afs_update_dentry_version(&fc, new_dentry, &scb[1]);
- } else {
- afs_update_dentry_version(&fc, old_dentry, &scb[0]);
- afs_update_dentry_version(&fc, new_dentry, &scb[0]);
- }
+ afs_update_dentry_version(&fc, old_dentry, &scb[1]);
+ afs_update_dentry_version(&fc, new_dentry, &scb[1]);
d_move(old_dentry, new_dentry);
+ up_write(&new_dvnode->validate_lock);
goto error_tmp;
}
diff --git a/fs/afs/dir_silly.c b/fs/afs/dir_silly.c
index 361088a5edb9..d94e2b7cddff 100644
--- a/fs/afs/dir_silly.c
+++ b/fs/afs/dir_silly.c
@@ -21,6 +21,7 @@ static int afs_do_silly_rename(struct afs_vnode *dvnode, struct afs_vnode *vnode
{
struct afs_fs_cursor fc;
struct afs_status_cb *scb;
+ afs_dataversion_t dir_data_version;
int ret = -ERESTARTSYS;
_enter("%pd,%pd", old, new);
@@ -31,7 +32,7 @@ static int afs_do_silly_rename(struct afs_vnode *dvnode, struct afs_vnode *vnode
trace_afs_silly_rename(vnode, false);
if (afs_begin_vnode_operation(&fc, dvnode, key, true)) {
- afs_dataversion_t dir_data_version = dvnode->status.data_version + 1;
+ dir_data_version = dvnode->status.data_version + 1;
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(dvnode);
@@ -54,12 +55,15 @@ static int afs_do_silly_rename(struct afs_vnode *dvnode, struct afs_vnode *vnode
dvnode->silly_key = key_get(key);
}
- if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == dir_data_version) {
afs_edit_dir_remove(dvnode, &old->d_name,
afs_edit_dir_for_silly_0);
- if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
afs_edit_dir_add(dvnode, &new->d_name,
&vnode->fid, afs_edit_dir_for_silly_1);
+ }
+ up_write(&dvnode->validate_lock);
}
kfree(scb);
@@ -181,10 +185,14 @@ static int afs_do_silly_unlink(struct afs_vnode *dvnode, struct afs_vnode *vnode
clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
}
}
- if (ret == 0 &&
- test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
- afs_edit_dir_remove(dvnode, &dentry->d_name,
- afs_edit_dir_for_unlink);
+ if (ret == 0) {
+ down_write(&dvnode->validate_lock);
+ if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags) &&
+ dvnode->status.data_version == dir_data_version)
+ afs_edit_dir_remove(dvnode, &dentry->d_name,
+ afs_edit_dir_for_unlink);
+ up_write(&dvnode->validate_lock);
+ }
}
kfree(scb);
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 1f9c5d8e6fe5..68fc46634346 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -65,6 +65,7 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
bool inline_error = (call->operation_ID == afs_FS_InlineBulkStatus);
u64 data_version, size;
u32 type, abort_code;
+ int ret;
abort_code = ntohl(xdr->abort_code);
@@ -78,7 +79,7 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
*/
status->abort_code = abort_code;
scb->have_error = true;
- return 0;
+ goto good;
}
pr_warn("Unknown AFSFetchStatus version %u\n", ntohl(xdr->if_version));
@@ -87,7 +88,8 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
if (abort_code != 0 && inline_error) {
status->abort_code = abort_code;
- return 0;
+ scb->have_error = true;
+ goto good;
}
type = ntohl(xdr->type);
@@ -123,13 +125,16 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
data_version |= (u64)ntohl(xdr->data_version_hi) << 32;
status->data_version = data_version;
scb->have_status = true;
-
+good:
+ ret = 0;
+advance:
*_bp = (const void *)*_bp + sizeof(*xdr);
- return 0;
+ return ret;
bad:
xdr_dump_bad(*_bp);
- return afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
+ ret = afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
+ goto advance;
}
static time64_t xdr_decode_expiry(struct afs_call *call, u32 expiry)
@@ -981,16 +986,16 @@ static int afs_deliver_fs_rename(struct afs_call *call)
if (ret < 0)
return ret;
- /* unmarshall the reply once we've received all of it */
+ /* If the two dirs are the same, we have two copies of the same status
+ * report, so we just decode it twice.
+ */
bp = call->buffer;
ret = xdr_decode_AFSFetchStatus(&bp, call, call->out_dir_scb);
if (ret < 0)
return ret;
- if (call->out_dir_scb != call->out_scb) {
- ret = xdr_decode_AFSFetchStatus(&bp, call, call->out_scb);
- if (ret < 0)
- return ret;
- }
+ ret = xdr_decode_AFSFetchStatus(&bp, call, call->out_scb);
+ if (ret < 0)
+ return ret;
xdr_decode_AFSVolSync(&bp, call->out_volsync);
_leave(" = 0 [done]");
diff --git a/fs/afs/yfsclient.c b/fs/afs/yfsclient.c
index a26126ac7bf1..83b6d67325f6 100644
--- a/fs/afs/yfsclient.c
+++ b/fs/afs/yfsclient.c
@@ -186,13 +186,14 @@ static int xdr_decode_YFSFetchStatus(const __be32 **_bp,
const struct yfs_xdr_YFSFetchStatus *xdr = (const void *)*_bp;
struct afs_file_status *status = &scb->status;
u32 type;
+ int ret;
status->abort_code = ntohl(xdr->abort_code);
if (status->abort_code != 0) {
if (status->abort_code == VNOVNODE)
status->nlink = 0;
scb->have_error = true;
- return 0;
+ goto good;
}
type = ntohl(xdr->type);
@@ -220,13 +221,16 @@ static int xdr_decode_YFSFetchStatus(const __be32 **_bp,
status->size = xdr_to_u64(xdr->size);
status->data_version = xdr_to_u64(xdr->data_version);
scb->have_status = true;
-
+good:
+ ret = 0;
+advance:
*_bp += xdr_size(xdr);
- return 0;
+ return ret;
bad:
xdr_dump_bad(*_bp);
- return afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
+ ret = afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
+ goto advance;
}
/*
@@ -1153,11 +1157,9 @@ static int yfs_deliver_fs_rename(struct afs_call *call)
ret = xdr_decode_YFSFetchStatus(&bp, call, call->out_dir_scb);
if (ret < 0)
return ret;
- if (call->out_dir_scb != call->out_scb) {
- ret = xdr_decode_YFSFetchStatus(&bp, call, call->out_scb);
- if (ret < 0)
- return ret;
- }
+ ret = xdr_decode_YFSFetchStatus(&bp, call, call->out_scb);
+ if (ret < 0)
+ return ret;
xdr_decode_YFSVolSync(&bp, call->out_volsync);
_leave(" = 0 [done]");
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 69bf2fb6f7cd..84fe0162ff13 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -34,6 +34,7 @@
#include <linux/task_io_accounting_ops.h>
#include <linux/falloc.h>
#include <linux/uaccess.h>
+#include <linux/suspend.h>
#include "internal.h"
struct bdev_inode {
@@ -2001,7 +2002,8 @@ ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
if (bdev_read_only(I_BDEV(bd_inode)))
return -EPERM;
- if (IS_SWAPFILE(bd_inode))
+ /* uswsusp needs write permission to the swap */
+ if (IS_SWAPFILE(bd_inode) && !hibernation_available())
return -ETXTBSY;
if (!iov_iter_count(from))
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index 7f09147872dc..c9a3bbc8c6af 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -1987,6 +1987,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
btrfs_release_path(path);
}
+ rcu_read_lock();
list_for_each_entry_rcu(space_info, &info->space_info, list) {
if (!(btrfs_get_alloc_profile(info, space_info->flags) &
(BTRFS_BLOCK_GROUP_RAID10 |
@@ -2007,6 +2008,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
list)
inc_block_group_ro(cache, 1);
}
+ rcu_read_unlock();
btrfs_init_global_block_rsv(info);
ret = check_chunk_block_group_mappings(info);
diff --git a/fs/buffer.c b/fs/buffer.c
index b8d28370cfd7..a50d928af641 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1377,6 +1377,17 @@ void __breadahead(struct block_device *bdev, sector_t block, unsigned size)
}
EXPORT_SYMBOL(__breadahead);
+void __breadahead_gfp(struct block_device *bdev, sector_t block, unsigned size,
+ gfp_t gfp)
+{
+ struct buffer_head *bh = __getblk_gfp(bdev, block, size, gfp);
+ if (likely(bh)) {
+ ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, &bh);
+ brelse(bh);
+ }
+}
+EXPORT_SYMBOL(__breadahead_gfp);
+
/**
* __bread_gfp() - reads a specified block and returns the bh
* @bdev: the block_device to read from
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 5a478cd06e11..7f8c4e308301 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1944,6 +1944,71 @@ static int is_file_size_ok(struct inode *src_inode, struct inode *dst_inode,
return 0;
}
+static ssize_t ceph_do_objects_copy(struct ceph_inode_info *src_ci, u64 *src_off,
+ struct ceph_inode_info *dst_ci, u64 *dst_off,
+ struct ceph_fs_client *fsc,
+ size_t len, unsigned int flags)
+{
+ struct ceph_object_locator src_oloc, dst_oloc;
+ struct ceph_object_id src_oid, dst_oid;
+ size_t bytes = 0;
+ u64 src_objnum, src_objoff, dst_objnum, dst_objoff;
+ u32 src_objlen, dst_objlen;
+ u32 object_size = src_ci->i_layout.object_size;
+ int ret;
+
+ src_oloc.pool = src_ci->i_layout.pool_id;
+ src_oloc.pool_ns = ceph_try_get_string(src_ci->i_layout.pool_ns);
+ dst_oloc.pool = dst_ci->i_layout.pool_id;
+ dst_oloc.pool_ns = ceph_try_get_string(dst_ci->i_layout.pool_ns);
+
+ while (len >= object_size) {
+ ceph_calc_file_object_mapping(&src_ci->i_layout, *src_off,
+ object_size, &src_objnum,
+ &src_objoff, &src_objlen);
+ ceph_calc_file_object_mapping(&dst_ci->i_layout, *dst_off,
+ object_size, &dst_objnum,
+ &dst_objoff, &dst_objlen);
+ ceph_oid_init(&src_oid);
+ ceph_oid_printf(&src_oid, "%llx.%08llx",
+ src_ci->i_vino.ino, src_objnum);
+ ceph_oid_init(&dst_oid);
+ ceph_oid_printf(&dst_oid, "%llx.%08llx",
+ dst_ci->i_vino.ino, dst_objnum);
+ /* Do an object remote copy */
+ ret = ceph_osdc_copy_from(&fsc->client->osdc,
+ src_ci->i_vino.snap, 0,
+ &src_oid, &src_oloc,
+ CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL |
+ CEPH_OSD_OP_FLAG_FADVISE_NOCACHE,
+ &dst_oid, &dst_oloc,
+ CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL |
+ CEPH_OSD_OP_FLAG_FADVISE_DONTNEED,
+ dst_ci->i_truncate_seq,
+ dst_ci->i_truncate_size,
+ CEPH_OSD_COPY_FROM_FLAG_TRUNCATE_SEQ);
+ if (ret) {
+ if (ret == -EOPNOTSUPP) {
+ fsc->have_copy_from2 = false;
+ pr_notice("OSDs don't support copy-from2; disabling copy offload\n");
+ }
+ dout("ceph_osdc_copy_from returned %d\n", ret);
+ if (!bytes)
+ bytes = ret;
+ goto out;
+ }
+ len -= object_size;
+ bytes += object_size;
+ *src_off += object_size;
+ *dst_off += object_size;
+ }
+
+out:
+ ceph_oloc_destroy(&src_oloc);
+ ceph_oloc_destroy(&dst_oloc);
+ return bytes;
+}
+
static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
struct file *dst_file, loff_t dst_off,
size_t len, unsigned int flags)
@@ -1954,14 +2019,11 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
struct ceph_inode_info *dst_ci = ceph_inode(dst_inode);
struct ceph_cap_flush *prealloc_cf;
struct ceph_fs_client *src_fsc = ceph_inode_to_client(src_inode);
- struct ceph_object_locator src_oloc, dst_oloc;
- struct ceph_object_id src_oid, dst_oid;
- loff_t endoff = 0, size;
- ssize_t ret = -EIO;
+ loff_t size;
+ ssize_t ret = -EIO, bytes;
u64 src_objnum, dst_objnum, src_objoff, dst_objoff;
- u32 src_objlen, dst_objlen, object_size;
+ u32 src_objlen, dst_objlen;
int src_got = 0, dst_got = 0, err, dirty;
- bool do_final_copy = false;
if (src_inode->i_sb != dst_inode->i_sb) {
struct ceph_fs_client *dst_fsc = ceph_inode_to_client(dst_inode);
@@ -2039,22 +2101,14 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
if (ret < 0)
goto out_caps;
- size = i_size_read(dst_inode);
- endoff = dst_off + len;
-
/* Drop dst file cached pages */
ret = invalidate_inode_pages2_range(dst_inode->i_mapping,
dst_off >> PAGE_SHIFT,
- endoff >> PAGE_SHIFT);
+ (dst_off + len) >> PAGE_SHIFT);
if (ret < 0) {
dout("Failed to invalidate inode pages (%zd)\n", ret);
ret = 0; /* XXX */
}
- src_oloc.pool = src_ci->i_layout.pool_id;
- src_oloc.pool_ns = ceph_try_get_string(src_ci->i_layout.pool_ns);
- dst_oloc.pool = dst_ci->i_layout.pool_id;
- dst_oloc.pool_ns = ceph_try_get_string(dst_ci->i_layout.pool_ns);
-
ceph_calc_file_object_mapping(&src_ci->i_layout, src_off,
src_ci->i_layout.object_size,
&src_objnum, &src_objoff, &src_objlen);
@@ -2073,6 +2127,8 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
* starting at the src_off
*/
if (src_objoff) {
+ dout("Initial partial copy of %u bytes\n", src_objlen);
+
/*
* we need to temporarily drop all caps as we'll be calling
* {read,write}_iter, which will get caps again.
@@ -2080,8 +2136,9 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
put_rd_wr_caps(src_ci, src_got, dst_ci, dst_got);
ret = do_splice_direct(src_file, &src_off, dst_file,
&dst_off, src_objlen, flags);
- if (ret < 0) {
- dout("do_splice_direct returned %d\n", err);
+ /* Abort on short copies or on error */
+ if (ret < src_objlen) {
+ dout("Failed partial copy (%zd)\n", ret);
goto out;
}
len -= ret;
@@ -2094,62 +2151,29 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
if (err < 0)
goto out_caps;
}
- object_size = src_ci->i_layout.object_size;
- while (len >= object_size) {
- ceph_calc_file_object_mapping(&src_ci->i_layout, src_off,
- object_size, &src_objnum,
- &src_objoff, &src_objlen);
- ceph_calc_file_object_mapping(&dst_ci->i_layout, dst_off,
- object_size, &dst_objnum,
- &dst_objoff, &dst_objlen);
- ceph_oid_init(&src_oid);
- ceph_oid_printf(&src_oid, "%llx.%08llx",
- src_ci->i_vino.ino, src_objnum);
- ceph_oid_init(&dst_oid);
- ceph_oid_printf(&dst_oid, "%llx.%08llx",
- dst_ci->i_vino.ino, dst_objnum);
- /* Do an object remote copy */
- err = ceph_osdc_copy_from(
- &src_fsc->client->osdc,
- src_ci->i_vino.snap, 0,
- &src_oid, &src_oloc,
- CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL |
- CEPH_OSD_OP_FLAG_FADVISE_NOCACHE,
- &dst_oid, &dst_oloc,
- CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL |
- CEPH_OSD_OP_FLAG_FADVISE_DONTNEED,
- dst_ci->i_truncate_seq, dst_ci->i_truncate_size,
- CEPH_OSD_COPY_FROM_FLAG_TRUNCATE_SEQ);
- if (err) {
- if (err == -EOPNOTSUPP) {
- src_fsc->have_copy_from2 = false;
- pr_notice("OSDs don't support copy-from2; disabling copy offload\n");
- }
- dout("ceph_osdc_copy_from returned %d\n", err);
- if (!ret)
- ret = err;
- goto out_caps;
- }
- len -= object_size;
- src_off += object_size;
- dst_off += object_size;
- ret += object_size;
- }
- if (len)
- /* We still need one final local copy */
- do_final_copy = true;
+ size = i_size_read(dst_inode);
+ bytes = ceph_do_objects_copy(src_ci, &src_off, dst_ci, &dst_off,
+ src_fsc, len, flags);
+ if (bytes <= 0) {
+ if (!ret)
+ ret = bytes;
+ goto out_caps;
+ }
+ dout("Copied %zu bytes out of %zu\n", bytes, len);
+ len -= bytes;
+ ret += bytes;
file_update_time(dst_file);
inode_inc_iversion_raw(dst_inode);
- if (endoff > size) {
+ if (dst_off > size) {
int caps_flags = 0;
/* Let the MDS know about dst file size change */
- if (ceph_quota_is_max_bytes_approaching(dst_inode, endoff))
+ if (ceph_quota_is_max_bytes_approaching(dst_inode, dst_off))
caps_flags |= CHECK_CAPS_NODELAY;
- if (ceph_inode_set_size(dst_inode, endoff))
+ if (ceph_inode_set_size(dst_inode, dst_off))
caps_flags |= CHECK_CAPS_AUTHONLY;
if (caps_flags)
ceph_check_caps(dst_ci, caps_flags, NULL);
@@ -2165,15 +2189,18 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
out_caps:
put_rd_wr_caps(src_ci, src_got, dst_ci, dst_got);
- if (do_final_copy) {
- err = do_splice_direct(src_file, &src_off, dst_file,
- &dst_off, len, flags);
- if (err < 0) {
- dout("do_splice_direct returned %d\n", err);
- goto out;
- }
- len -= err;
- ret += err;
+ /*
+ * Do the final manual copy if we still have some bytes left, unless
+ * there were errors in remote object copies (len >= object_size).
+ */
+ if (len && (len < src_ci->i_layout.object_size)) {
+ dout("Final partial copy of %zu bytes\n", len);
+ bytes = do_splice_direct(src_file, &src_off, dst_file,
+ &dst_off, len, flags);
+ if (bytes > 0)
+ ret += bytes;
+ else
+ dout("Failed partial copy (%zd)\n", bytes);
}
out:
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 0511aaf451d4..497afb0b9960 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -766,6 +766,20 @@ smb2_handle_cancelled_close(struct cifs_tcon *tcon, __u64 persistent_fid,
cifs_dbg(FYI, "%s: tc_count=%d\n", __func__, tcon->tc_count);
spin_lock(&cifs_tcp_ses_lock);
+ if (tcon->tc_count <= 0) {
+ struct TCP_Server_Info *server = NULL;
+
+ WARN_ONCE(tcon->tc_count < 0, "tcon refcount is negative");
+ spin_unlock(&cifs_tcp_ses_lock);
+
+ if (tcon->ses)
+ server = tcon->ses->server;
+
+ cifs_server_dbg(FYI, "tid=%u: tcon is closing, skipping async close retry of fid %llu %llu\n",
+ tcon->tid, persistent_fid, volatile_fid);
+
+ return 0;
+ }
tcon->tc_count++;
spin_unlock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index cb3ee916f527..c97570eb2c18 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -466,7 +466,7 @@ smb_send_rqst(struct TCP_Server_Info *server, int num_rqst,
struct smb_rqst *rqst, int flags)
{
struct kvec iov;
- struct smb2_transform_hdr tr_hdr;
+ struct smb2_transform_hdr *tr_hdr;
struct smb_rqst cur_rqst[MAX_COMPOUND];
int rc;
@@ -476,28 +476,34 @@ smb_send_rqst(struct TCP_Server_Info *server, int num_rqst,
if (num_rqst > MAX_COMPOUND - 1)
return -ENOMEM;
- memset(&cur_rqst[0], 0, sizeof(cur_rqst));
- memset(&iov, 0, sizeof(iov));
- memset(&tr_hdr, 0, sizeof(tr_hdr));
-
- iov.iov_base = &tr_hdr;
- iov.iov_len = sizeof(tr_hdr);
- cur_rqst[0].rq_iov = &iov;
- cur_rqst[0].rq_nvec = 1;
-
if (!server->ops->init_transform_rq) {
cifs_server_dbg(VFS, "Encryption requested but transform "
"callback is missing\n");
return -EIO;
}
+ tr_hdr = kmalloc(sizeof(*tr_hdr), GFP_NOFS);
+ if (!tr_hdr)
+ return -ENOMEM;
+
+ memset(&cur_rqst[0], 0, sizeof(cur_rqst));
+ memset(&iov, 0, sizeof(iov));
+ memset(tr_hdr, 0, sizeof(*tr_hdr));
+
+ iov.iov_base = tr_hdr;
+ iov.iov_len = sizeof(*tr_hdr);
+ cur_rqst[0].rq_iov = &iov;
+ cur_rqst[0].rq_nvec = 1;
+
rc = server->ops->init_transform_rq(server, num_rqst + 1,
&cur_rqst[0], rqst);
if (rc)
- return rc;
+ goto out;
rc = __smb_send_rqst(server, num_rqst + 1, &cur_rqst[0]);
smb3_free_compound_rqst(num_rqst, &cur_rqst[1]);
+out:
+ kfree(tr_hdr);
return rc;
}
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 0456bc990b5e..62acbe27d8bf 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -56,6 +56,7 @@
#include <linux/buffer_head.h>
#include <linux/init.h>
+#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/mbcache.h>
#include <linux/quotaops.h>
@@ -84,8 +85,8 @@
printk("\n"); \
} while (0)
#else
-# define ea_idebug(f...)
-# define ea_bdebug(f...)
+# define ea_idebug(inode, f...) no_printk(f)
+# define ea_bdebug(bh, f...) no_printk(f)
#endif
static int ext2_xattr_set2(struct inode *, struct buffer_head *,
@@ -864,8 +865,7 @@ ext2_xattr_cache_insert(struct mb_cache *cache, struct buffer_head *bh)
true);
if (error) {
if (error == -EBUSY) {
- ea_bdebug(bh, "already in cache (%d cache entries)",
- atomic_read(&ext2_xattr_cache->c_entry_count));
+ ea_bdebug(bh, "already in cache");
error = 0;
}
} else
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c5d05564cd29..37f65ad0d823 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4348,7 +4348,7 @@ static int __ext4_get_inode_loc(struct inode *inode,
if (end > table)
end = table;
while (b <= end)
- sb_breadahead(sb, b++);
+ sb_breadahead_unmovable(sb, b++);
}
/*
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4f0444f3cda3..16da3b3481a4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -372,7 +372,8 @@ static void save_error_info(struct super_block *sb, const char *func,
unsigned int line)
{
__save_error_info(sb, func, line);
- ext4_commit_super(sb, 1);
+ if (!bdev_read_only(sb->s_bdev))
+ ext4_commit_super(sb, 1);
}
/*
@@ -4331,7 +4332,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
/* Pre-read the descriptors into the buffer cache */
for (i = 0; i < db_count; i++) {
block = descriptor_loc(sb, logical_sb_block, i);
- sb_breadahead(sb, block);
+ sb_breadahead_unmovable(sb, block);
}
for (i = 0; i < db_count; i++) {
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 44e84ac5c941..79aaf06004f6 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1250,20 +1250,20 @@ static void unblock_operations(struct f2fs_sb_info *sbi)
f2fs_unlock_all(sbi);
}
-void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi)
+void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type)
{
DEFINE_WAIT(wait);
for (;;) {
prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE);
- if (!get_pages(sbi, F2FS_WB_CP_DATA))
+ if (!get_pages(sbi, type))
break;
if (unlikely(f2fs_cp_error(sbi)))
break;
- io_schedule_timeout(5*HZ);
+ io_schedule_timeout(HZ/50);
}
finish_wait(&sbi->cp_wait, &wait);
}
@@ -1301,10 +1301,14 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc)
else
__clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG);
- if (is_sbi_flag_set(sbi, SBI_NEED_FSCK) ||
- is_sbi_flag_set(sbi, SBI_IS_RESIZEFS))
+ if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
__set_ckpt_flags(ckpt, CP_FSCK_FLAG);
+ if (is_sbi_flag_set(sbi, SBI_IS_RESIZEFS))
+ __set_ckpt_flags(ckpt, CP_RESIZEFS_FLAG);
+ else
+ __clear_ckpt_flags(ckpt, CP_RESIZEFS_FLAG);
+
if (is_sbi_flag_set(sbi, SBI_CP_DISABLED))
__set_ckpt_flags(ckpt, CP_DISABLED_FLAG);
else
@@ -1384,8 +1388,6 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* Flush all the NAT/SIT pages */
f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
- f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) &&
- !f2fs_cp_error(sbi));
/*
* modify checkpoint
@@ -1493,11 +1495,11 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* Here, we have one bio having CP pack except cp pack 2 page */
f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
- f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) &&
- !f2fs_cp_error(sbi));
+ /* Wait for all dirty meta pages to be submitted for IO */
+ f2fs_wait_on_all_pages(sbi, F2FS_DIRTY_META);
/* wait for previous submitted meta pages writeback */
- f2fs_wait_on_all_pages_writeback(sbi);
+ f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
/* flush all device cache */
err = f2fs_flush_device_cache(sbi);
@@ -1506,7 +1508,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* barrier and flush checkpoint cp pack 2 page if it can */
commit_checkpoint(sbi, ckpt, start_blk);
- f2fs_wait_on_all_pages_writeback(sbi);
+ f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
/*
* invalidate intermediate page cache borrowed from meta inode which are
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index d8a64be90a50..837e14b7ef52 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -385,16 +385,22 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
for (i = 0; i < COMPRESS_DATA_RESERVED_SIZE; i++)
cc->cbuf->reserved[i] = cpu_to_le32(0);
+ nr_cpages = DIV_ROUND_UP(cc->clen + COMPRESS_HEADER_SIZE, PAGE_SIZE);
+
+ /* zero out any unused part of the last page */
+ memset(&cc->cbuf->cdata[cc->clen], 0,
+ (nr_cpages * PAGE_SIZE) - (cc->clen + COMPRESS_HEADER_SIZE));
+
vunmap(cc->cbuf);
vunmap(cc->rbuf);
- nr_cpages = DIV_ROUND_UP(cc->clen + COMPRESS_HEADER_SIZE, PAGE_SIZE);
-
for (i = nr_cpages; i < cc->nr_cpages; i++) {
f2fs_put_compressed_page(cc->cpages[i]);
cc->cpages[i] = NULL;
}
+ cops->destroy_compress_ctx(cc);
+
cc->nr_cpages = nr_cpages;
trace_f2fs_compress_pages_end(cc->inode, cc->cluster_idx,
@@ -474,6 +480,8 @@ void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity)
out_vunmap_rbuf:
vunmap(dic->rbuf);
out_free_dic:
+ if (verity)
+ refcount_add(dic->nr_cpages - 1, &dic->ref);
if (!verity)
f2fs_decompress_end_io(dic->rpages, dic->cluster_size,
ret, false);
@@ -532,8 +540,7 @@ static bool __cluster_may_compress(struct compress_ctx *cc)
return true;
}
-/* return # of compressed block addresses */
-static int f2fs_compressed_blocks(struct compress_ctx *cc)
+static int __f2fs_cluster_blocks(struct compress_ctx *cc, bool compr)
{
struct dnode_of_data dn;
int ret;
@@ -556,8 +563,13 @@ static int f2fs_compressed_blocks(struct compress_ctx *cc)
blkaddr = datablock_addr(dn.inode,
dn.node_page, dn.ofs_in_node + i);
- if (blkaddr != NULL_ADDR)
- ret++;
+ if (compr) {
+ if (__is_valid_data_blkaddr(blkaddr))
+ ret++;
+ } else {
+ if (blkaddr != NULL_ADDR)
+ ret++;
+ }
}
}
fail:
@@ -565,6 +577,18 @@ static int f2fs_compressed_blocks(struct compress_ctx *cc)
return ret;
}
+/* return # of compressed blocks in compressed cluster */
+static int f2fs_compressed_blocks(struct compress_ctx *cc)
+{
+ return __f2fs_cluster_blocks(cc, true);
+}
+
+/* return # of valid blocks in compressed cluster */
+static int f2fs_cluster_blocks(struct compress_ctx *cc, bool compr)
+{
+ return __f2fs_cluster_blocks(cc, false);
+}
+
int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index)
{
struct compress_ctx cc = {
@@ -574,7 +598,7 @@ int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index)
.cluster_idx = index >> F2FS_I(inode)->i_log_cluster_size,
};
- return f2fs_compressed_blocks(&cc);
+ return f2fs_cluster_blocks(&cc, false);
}
static bool cluster_may_compress(struct compress_ctx *cc)
@@ -623,7 +647,7 @@ static int prepare_compress_overwrite(struct compress_ctx *cc,
bool prealloc;
retry:
- ret = f2fs_compressed_blocks(cc);
+ ret = f2fs_cluster_blocks(cc, false);
if (ret <= 0)
return ret;
@@ -772,7 +796,6 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
.encrypted_page = NULL,
.compressed_page = NULL,
.submitted = false,
- .need_lock = LOCK_RETRY,
.io_type = io_type,
.io_wbc = wbc,
.encrypted = f2fs_encrypted_file(cc->inode),
@@ -785,9 +808,10 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
loff_t psize;
int i, err;
- set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
+ if (!f2fs_trylock_op(sbi))
+ return -EAGAIN;
- f2fs_lock_op(sbi);
+ set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
err = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
if (err)
@@ -845,7 +869,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
blkaddr = datablock_addr(dn.inode, dn.node_page,
dn.ofs_in_node);
- fio.page = cic->rpages[i];
+ fio.page = cc->rpages[i];
fio.old_blkaddr = blkaddr;
/* cluster header */
@@ -984,6 +1008,15 @@ static int f2fs_write_raw_pages(struct compress_ctx *cc,
unlock_page(cc->rpages[i]);
ret = 0;
} else if (ret == -EAGAIN) {
+ /*
+ * for quota file, just redirty left pages to
+ * avoid deadlock caused by cluster update race
+ * from foreground operation.
+ */
+ if (IS_NOQUOTA(cc->inode)) {
+ err = 0;
+ goto out_err;
+ }
ret = 0;
cond_resched();
congestion_wait(BLK_RW_ASYNC, HZ/50);
@@ -992,16 +1025,12 @@ static int f2fs_write_raw_pages(struct compress_ctx *cc,
goto retry_write;
}
err = ret;
- goto out_fail;
+ goto out_err;
}
*submitted += _submitted;
}
return 0;
-
-out_fail:
- /* TODO: revoke partially updated block addresses */
- BUG_ON(compr_blocks);
out_err:
for (++i; i < cc->cluster_size; i++) {
if (!cc->rpages[i])
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b27b72107911..34990866cfe9 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -191,12 +191,37 @@ static void f2fs_verify_pages(struct page **rpages, unsigned int cluster_size)
static void f2fs_verify_bio(struct bio *bio)
{
- struct page *page = bio_first_page_all(bio);
- struct decompress_io_ctx *dic =
- (struct decompress_io_ctx *)page_private(page);
+ struct bio_vec *bv;
+ struct bvec_iter_all iter_all;
+
+ bio_for_each_segment_all(bv, bio, iter_all) {
+ struct page *page = bv->bv_page;
+ struct decompress_io_ctx *dic;
+
+ dic = (struct decompress_io_ctx *)page_private(page);
+
+ if (dic) {
+ if (refcount_dec_not_one(&dic->ref))
+ continue;
+ f2fs_verify_pages(dic->rpages,
+ dic->cluster_size);
+ f2fs_free_dic(dic);
+ continue;
+ }
+
+ if (bio->bi_status || PageError(page))
+ goto clear_uptodate;
- f2fs_verify_pages(dic->rpages, dic->cluster_size);
- f2fs_free_dic(dic);
+ if (fsverity_verify_page(page)) {
+ SetPageUptodate(page);
+ goto unlock;
+ }
+clear_uptodate:
+ ClearPageUptodate(page);
+ ClearPageError(page);
+unlock:
+ unlock_page(page);
+ }
}
#endif
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5355be6b6755..71801a1709f0 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -100,6 +100,7 @@ extern const char *f2fs_fault_name[FAULT_MAX];
#define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
#define F2FS_MOUNT_RESERVE_ROOT 0x01000000
#define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
+#define F2FS_MOUNT_NORECOVERY 0x04000000
#define F2FS_OPTION(sbi) ((sbi)->mount_opt)
#define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
@@ -675,6 +676,44 @@ enum {
MAX_GC_FAILURE
};
+/* used for f2fs_inode_info->flags */
+enum {
+ FI_NEW_INODE, /* indicate newly allocated inode */
+ FI_DIRTY_INODE, /* indicate inode is dirty or not */
+ FI_AUTO_RECOVER, /* indicate inode is recoverable */
+ FI_DIRTY_DIR, /* indicate directory has dirty pages */
+ FI_INC_LINK, /* need to increment i_nlink */
+ FI_ACL_MODE, /* indicate acl mode */
+ FI_NO_ALLOC, /* should not allocate any blocks */
+ FI_FREE_NID, /* free allocated nide */
+ FI_NO_EXTENT, /* not to use the extent cache */
+ FI_INLINE_XATTR, /* used for inline xattr */
+ FI_INLINE_DATA, /* used for inline data*/
+ FI_INLINE_DENTRY, /* used for inline dentry */
+ FI_APPEND_WRITE, /* inode has appended data */
+ FI_UPDATE_WRITE, /* inode has in-place-update data */
+ FI_NEED_IPU, /* used for ipu per file */
+ FI_ATOMIC_FILE, /* indicate atomic file */
+ FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
+ FI_VOLATILE_FILE, /* indicate volatile file */
+ FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
+ FI_DROP_CACHE, /* drop dirty page cache */
+ FI_DATA_EXIST, /* indicate data exists */
+ FI_INLINE_DOTS, /* indicate inline dot dentries */
+ FI_DO_DEFRAG, /* indicate defragment is running */
+ FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
+ FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
+ FI_HOT_DATA, /* indicate file is hot */
+ FI_EXTRA_ATTR, /* indicate file has extra attribute */
+ FI_PROJ_INHERIT, /* indicate file inherits projectid */
+ FI_PIN_FILE, /* indicate file should not be gced */
+ FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
+ FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
+ FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
+ FI_MMAP_FILE, /* indicate file was mmapped */
+ FI_MAX, /* max flag, never be used */
+};
+
struct f2fs_inode_info {
struct inode vfs_inode; /* serve a vfs inode */
unsigned long i_flags; /* keep an inode flags for ioctl */
@@ -687,7 +726,7 @@ struct f2fs_inode_info {
umode_t i_acl_mode; /* keep file acl mode temporarily */
/* Use below internally in f2fs*/
- unsigned long flags; /* use to pass per-file flags */
+ unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
struct rw_semaphore i_sem; /* protect fi info */
atomic_t dirty_pages; /* # of dirty pages */
f2fs_hash_t chash; /* hash value of given file name */
@@ -2497,43 +2536,6 @@ static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
return flags & F2FS_OTHER_FLMASK;
}
-/* used for f2fs_inode_info->flags */
-enum {
- FI_NEW_INODE, /* indicate newly allocated inode */
- FI_DIRTY_INODE, /* indicate inode is dirty or not */
- FI_AUTO_RECOVER, /* indicate inode is recoverable */
- FI_DIRTY_DIR, /* indicate directory has dirty pages */
- FI_INC_LINK, /* need to increment i_nlink */
- FI_ACL_MODE, /* indicate acl mode */
- FI_NO_ALLOC, /* should not allocate any blocks */
- FI_FREE_NID, /* free allocated nide */
- FI_NO_EXTENT, /* not to use the extent cache */
- FI_INLINE_XATTR, /* used for inline xattr */
- FI_INLINE_DATA, /* used for inline data*/
- FI_INLINE_DENTRY, /* used for inline dentry */
- FI_APPEND_WRITE, /* inode has appended data */
- FI_UPDATE_WRITE, /* inode has in-place-update data */
- FI_NEED_IPU, /* used for ipu per file */
- FI_ATOMIC_FILE, /* indicate atomic file */
- FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
- FI_VOLATILE_FILE, /* indicate volatile file */
- FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
- FI_DROP_CACHE, /* drop dirty page cache */
- FI_DATA_EXIST, /* indicate data exists */
- FI_INLINE_DOTS, /* indicate inline dot dentries */
- FI_DO_DEFRAG, /* indicate defragment is running */
- FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
- FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
- FI_HOT_DATA, /* indicate file is hot */
- FI_EXTRA_ATTR, /* indicate file has extra attribute */
- FI_PROJ_INHERIT, /* indicate file inherits projectid */
- FI_PIN_FILE, /* indicate file should not be gced */
- FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
- FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
- FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
- FI_MMAP_FILE, /* indicate file was mmapped */
-};
-
static inline void __mark_inode_dirty_flag(struct inode *inode,
int flag, bool set)
{
@@ -2555,20 +2557,18 @@ static inline void __mark_inode_dirty_flag(struct inode *inode,
static inline void set_inode_flag(struct inode *inode, int flag)
{
- if (!test_bit(flag, &F2FS_I(inode)->flags))
- set_bit(flag, &F2FS_I(inode)->flags);
+ test_and_set_bit(flag, F2FS_I(inode)->flags);
__mark_inode_dirty_flag(inode, flag, true);
}
static inline int is_inode_flag_set(struct inode *inode, int flag)
{
- return test_bit(flag, &F2FS_I(inode)->flags);
+ return test_bit(flag, F2FS_I(inode)->flags);
}
static inline void clear_inode_flag(struct inode *inode, int flag)
{
- if (test_bit(flag, &F2FS_I(inode)->flags))
- clear_bit(flag, &F2FS_I(inode)->flags);
+ test_and_clear_bit(flag, F2FS_I(inode)->flags);
__mark_inode_dirty_flag(inode, flag, false);
}
@@ -2659,19 +2659,19 @@ static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
struct f2fs_inode_info *fi = F2FS_I(inode);
if (ri->i_inline & F2FS_INLINE_XATTR)
- set_bit(FI_INLINE_XATTR, &fi->flags);
+ set_bit(FI_INLINE_XATTR, fi->flags);
if (ri->i_inline & F2FS_INLINE_DATA)
- set_bit(FI_INLINE_DATA, &fi->flags);
+ set_bit(FI_INLINE_DATA, fi->flags);
if (ri->i_inline & F2FS_INLINE_DENTRY)
- set_bit(FI_INLINE_DENTRY, &fi->flags);
+ set_bit(FI_INLINE_DENTRY, fi->flags);
if (ri->i_inline & F2FS_DATA_EXIST)
- set_bit(FI_DATA_EXIST, &fi->flags);
+ set_bit(FI_DATA_EXIST, fi->flags);
if (ri->i_inline & F2FS_INLINE_DOTS)
- set_bit(FI_INLINE_DOTS, &fi->flags);
+ set_bit(FI_INLINE_DOTS, fi->flags);
if (ri->i_inline & F2FS_EXTRA_ATTR)
- set_bit(FI_EXTRA_ATTR, &fi->flags);
+ set_bit(FI_EXTRA_ATTR, fi->flags);
if (ri->i_inline & F2FS_PIN_FILE)
- set_bit(FI_PIN_FILE, &fi->flags);
+ set_bit(FI_PIN_FILE, fi->flags);
}
static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
@@ -3308,7 +3308,7 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
void f2fs_update_dirty_page(struct inode *inode, struct page *page);
void f2fs_remove_dirty_inode(struct inode *inode);
int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
-void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
+void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
int __init f2fs_create_checkpoint_caches(void);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 0d4da644df3b..a41c633ac6cf 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1787,12 +1787,15 @@ static int f2fs_file_flush(struct file *file, fl_owner_t id)
static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
{
struct f2fs_inode_info *fi = F2FS_I(inode);
+ u32 masked_flags = fi->i_flags & mask;
+
+ f2fs_bug_on(F2FS_I_SB(inode), (iflags & ~mask));
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode))
return -EPERM;
- if ((iflags ^ fi->i_flags) & F2FS_CASEFOLD_FL) {
+ if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
return -EOPNOTSUPP;
if (!f2fs_empty_dir(inode))
@@ -1806,9 +1809,9 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
return -EINVAL;
}
- if ((iflags ^ fi->i_flags) & F2FS_COMPR_FL) {
+ if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
if (S_ISREG(inode->i_mode) &&
- (fi->i_flags & F2FS_COMPR_FL || i_size_read(inode) ||
+ (masked_flags & F2FS_COMPR_FL || i_size_read(inode) ||
F2FS_HAS_BLOCKS(inode)))
return -EINVAL;
if (iflags & F2FS_NOCOMP_FL)
@@ -1825,8 +1828,8 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
set_compress_context(inode);
}
}
- if ((iflags ^ fi->i_flags) & F2FS_NOCOMP_FL) {
- if (fi->i_flags & F2FS_COMPR_FL)
+ if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) {
+ if (masked_flags & F2FS_COMPR_FL)
return -EINVAL;
}
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index db8725d473b5..3cced15efebc 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1018,8 +1018,8 @@ static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
* race condition along with SSR block allocation.
*/
if ((gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0)) ||
- get_valid_blocks(sbi, segno, false) ==
- sbi->blocks_per_seg)
+ get_valid_blocks(sbi, segno, true) ==
+ BLKS_PER_SEC(sbi))
return submitted;
if (check_valid_map(sbi, segno, off) == 0)
@@ -1434,12 +1434,19 @@ static int free_segment_range(struct f2fs_sb_info *sbi, unsigned int start,
static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
{
struct f2fs_super_block *raw_sb = F2FS_RAW_SUPER(sbi);
- int section_count = le32_to_cpu(raw_sb->section_count);
- int segment_count = le32_to_cpu(raw_sb->segment_count);
- int segment_count_main = le32_to_cpu(raw_sb->segment_count_main);
- long long block_count = le64_to_cpu(raw_sb->block_count);
+ int section_count;
+ int segment_count;
+ int segment_count_main;
+ long long block_count;
int segs = secs * sbi->segs_per_sec;
+ down_write(&sbi->sb_lock);
+
+ section_count = le32_to_cpu(raw_sb->section_count);
+ segment_count = le32_to_cpu(raw_sb->segment_count);
+ segment_count_main = le32_to_cpu(raw_sb->segment_count_main);
+ block_count = le64_to_cpu(raw_sb->block_count);
+
raw_sb->section_count = cpu_to_le32(section_count + secs);
raw_sb->segment_count = cpu_to_le32(segment_count + segs);
raw_sb->segment_count_main = cpu_to_le32(segment_count_main + segs);
@@ -1453,6 +1460,8 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
raw_sb->devs[last_dev].total_segments =
cpu_to_le32(dev_segs + segs);
}
+
+ up_write(&sbi->sb_lock);
}
static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
@@ -1570,11 +1579,17 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
goto out;
}
+ mutex_lock(&sbi->cp_mutex);
update_fs_metadata(sbi, -secs);
clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
+ set_sbi_flag(sbi, SBI_IS_DIRTY);
+ mutex_unlock(&sbi->cp_mutex);
+
err = f2fs_sync_fs(sbi->sb, 1);
if (err) {
+ mutex_lock(&sbi->cp_mutex);
update_fs_metadata(sbi, secs);
+ mutex_unlock(&sbi->cp_mutex);
update_sb_metadata(sbi, secs);
f2fs_commit_super(sbi, false);
}
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 78c3f1d70f1d..901e9f4ce12b 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -345,7 +345,7 @@ static int do_read_inode(struct inode *inode)
fi->i_flags = le32_to_cpu(ri->i_flags);
if (S_ISREG(inode->i_mode))
fi->i_flags &= ~F2FS_PROJINHERIT_FL;
- fi->flags = 0;
+ bitmap_zero(fi->flags, FI_MAX);
fi->i_advise = ri->i_advise;
fi->i_pino = le32_to_cpu(ri->i_pino);
fi->i_dir_level = ri->i_dir_level;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 9d02cdcdbb07..e58c4c628834 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1562,15 +1562,16 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
if (atomic && !test_opt(sbi, NOBARRIER))
fio.op_flags |= REQ_PREFLUSH | REQ_FUA;
- set_page_writeback(page);
- ClearPageError(page);
-
+ /* should add to global list before clearing PAGECACHE status */
if (f2fs_in_warm_node_list(sbi, page)) {
seq = f2fs_add_fsync_node_entry(sbi, page);
if (seq_id)
*seq_id = seq;
}
+ set_page_writeback(page);
+ ClearPageError(page);
+
fio.old_blkaddr = ni.blk_addr;
f2fs_do_write_node_page(nid, &fio);
set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page));
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 65a7a432dfee..8deb0a260d92 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -446,7 +446,7 @@ static int parse_options(struct super_block *sb, char *options)
break;
case Opt_norecovery:
/* this option mounts f2fs with ro */
- set_opt(sbi, DISABLE_ROLL_FORWARD);
+ set_opt(sbi, NORECOVERY);
if (!f2fs_readonly(sb))
return -EINVAL;
break;
@@ -1172,7 +1172,7 @@ static void f2fs_put_super(struct super_block *sb)
/* our cp_error case, we can wait for any writeback page */
f2fs_flush_merged_writes(sbi);
- f2fs_wait_on_all_pages_writeback(sbi);
+ f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
f2fs_bug_on(sbi, sbi->fsync_node_num);
@@ -1446,6 +1446,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
}
if (test_opt(sbi, DISABLE_ROLL_FORWARD))
seq_puts(seq, ",disable_roll_forward");
+ if (test_opt(sbi, NORECOVERY))
+ seq_puts(seq, ",norecovery");
if (test_opt(sbi, DISCARD))
seq_puts(seq, ",discard");
else
@@ -1927,6 +1929,7 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
int offset = off & (sb->s_blocksize - 1);
size_t towrite = len;
struct page *page;
+ void *fsdata = NULL;
char *kaddr;
int err = 0;
int tocopy;
@@ -1936,7 +1939,7 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
towrite);
retry:
err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
- &page, NULL);
+ &page, &fsdata);
if (unlikely(err)) {
if (err == -ENOMEM) {
congestion_wait(BLK_RW_ASYNC, HZ/50);
@@ -1952,7 +1955,7 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
flush_dcache_page(page);
a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
- page, NULL);
+ page, fsdata);
offset = 0;
towrite -= tocopy;
off += tocopy;
@@ -3598,7 +3601,8 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
goto reset_checkpoint;
/* recover fsynced data */
- if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) {
+ if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
+ !test_opt(sbi, NORECOVERY)) {
/*
* mount should be failed, when device has readonly mode, and
* previous checkpoint was not done by clean system shutdown.
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 08dd6a430234..60d911e293e6 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -104,16 +104,22 @@ __acquires(&sdp->sd_ail_lock)
gfs2_assert(sdp, bd->bd_tr == tr);
if (!buffer_busy(bh)) {
- if (!buffer_uptodate(bh) &&
- !test_and_set_bit(SDF_AIL1_IO_ERROR,
+ if (buffer_uptodate(bh)) {
+ list_move(&bd->bd_ail_st_list,
+ &tr->tr_ail2_list);
+ continue;
+ }
+ if (!test_and_set_bit(SDF_AIL1_IO_ERROR,
&sdp->sd_flags)) {
gfs2_io_error_bh(sdp, bh);
*withdraw = true;
}
- list_move(&bd->bd_ail_st_list, &tr->tr_ail2_list);
- continue;
}
+ if (gfs2_withdrawn(sdp)) {
+ gfs2_remove_from_ail(bd);
+ continue;
+ }
if (!buffer_dirty(bh))
continue;
if (gl == bd->bd_gl)
@@ -862,6 +868,8 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
if (gfs2_ail1_empty(sdp))
break;
}
+ if (gfs2_withdrawn(sdp))
+ goto out;
atomic_dec(&sdp->sd_log_blks_free); /* Adjust for unreserved buffer */
trace_gfs2_log_blocks(sdp, -1);
log_write_header(sdp, flags);
@@ -874,6 +882,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
}
+out:
trace_gfs2_log_flush(sdp, 0, flags);
up_write(&sdp->sd_log_flush_lock);
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index cd4c6bc81cae..40d31024b72d 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -128,6 +128,8 @@ static struct inode *nfs_layout_find_inode_by_stateid(struct nfs_client *clp,
list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
list_for_each_entry(lo, &server->layouts, plh_layouts) {
+ if (!pnfs_layout_is_valid(lo))
+ continue;
if (stateid != NULL &&
!nfs4_stateid_match_other(stateid, &lo->plh_stateid))
continue;
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index b768a0b42e82..ade2435551c8 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -571,6 +571,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter)
l_ctx = nfs_get_lock_context(dreq->ctx);
if (IS_ERR(l_ctx)) {
result = PTR_ERR(l_ctx);
+ nfs_direct_req_release(dreq);
goto out_release;
}
dreq->l_ctx = l_ctx;
@@ -990,6 +991,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter)
l_ctx = nfs_get_lock_context(dreq->ctx);
if (IS_ERR(l_ctx)) {
result = PTR_ERR(l_ctx);
+ nfs_direct_req_release(dreq);
goto out_release;
}
dreq->l_ctx = l_ctx;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 11bf15800ac9..a10fb87c6ac3 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -959,16 +959,16 @@ struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry,
struct file *filp)
{
struct nfs_open_context *ctx;
- const struct cred *cred = get_current_cred();
ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
- if (!ctx) {
- put_cred(cred);
+ if (!ctx)
return ERR_PTR(-ENOMEM);
- }
nfs_sb_active(dentry->d_sb);
ctx->dentry = dget(dentry);
- ctx->cred = cred;
+ if (filp)
+ ctx->cred = get_cred(filp->f_cred);
+ else
+ ctx->cred = get_current_cred();
ctx->ll_cred = NULL;
ctx->state = NULL;
ctx->mode = f_mode;
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 1297919e0fce..8e5d6223ddd3 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -252,6 +252,9 @@ static loff_t nfs42_remap_file_range(struct file *src_file, loff_t src_off,
if (remap_flags & ~REMAP_FILE_ADVISORY)
return -EINVAL;
+ if (IS_SWAPFILE(dst_inode) || IS_SWAPFILE(src_inode))
+ return -ETXTBSY;
+
/* check alignment w.r.t. clone_blksize */
ret = -EINVAL;
if (bs) {
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index effaa4247b91..8d3278805602 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -88,7 +88,7 @@
#define NFS_ROOT "/tftpboot/%s"
/* Default NFSROOT mount options. */
-#define NFS_DEF_OPTIONS "vers=2,udp,rsize=4096,wsize=4096"
+#define NFS_DEF_OPTIONS "vers=2,tcp,rsize=4096,wsize=4096"
/* Parameters passed from the kernel command line */
static char nfs_root_parms[NFS_MAXPATHLEN + 1] __initdata = "";
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 8b7c525dbbf7..b736912098ee 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -886,15 +886,6 @@ static void nfs_pageio_setup_mirroring(struct nfs_pageio_descriptor *pgio,
pgio->pg_mirror_count = mirror_count;
}
-/*
- * nfs_pageio_stop_mirroring - stop using mirroring (set mirror count to 1)
- */
-void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio)
-{
- pgio->pg_mirror_count = 1;
- pgio->pg_mirror_idx = 0;
-}
-
static void nfs_pageio_cleanup_mirroring(struct nfs_pageio_descriptor *pgio)
{
pgio->pg_mirror_count = 1;
@@ -1320,6 +1311,14 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index)
}
}
+/*
+ * nfs_pageio_stop_mirroring - stop using mirroring (set mirror count to 1)
+ */
+void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio)
+{
+ nfs_pageio_complete(pgio);
+}
+
int __init nfs_init_nfspagecache(void)
{
nfs_page_cachep = kmem_cache_create("nfs_page",
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index d8053bc96c4d..5a130409f173 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -1515,7 +1515,7 @@ xfs_alloc_ag_vextent_lastblock(
* maxlen, go to the start of this block, and skip all those smaller
* than minlen.
*/
- if (len || args->alignment > 1) {
+ if (*len || args->alignment > 1) {
acur->cnt->bc_ptrs[0] = 1;
do {
error = xfs_alloc_get_rec(acur->cnt, bno, len, &i);
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index bbfa6ba84dcd..fe8f60b59ec4 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -145,8 +145,8 @@ xfs_attr3_node_inactive(
* Since this code is recursive (gasp!) we must protect ourselves.
*/
if (level > XFS_DA_NODE_MAXDEPTH) {
- xfs_trans_brelse(*trans, bp); /* no locks for later trans */
xfs_buf_corruption_error(bp);
+ xfs_trans_brelse(*trans, bp); /* no locks for later trans */
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 0d3b640cf1cc..871ec22c9aee 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -147,7 +147,7 @@ xfs_dir2_block_getdents(
xfs_off_t cook;
struct xfs_da_geometry *geo = args->geo;
int lock_mode;
- unsigned int offset;
+ unsigned int offset, next_offset;
unsigned int end;
/*
@@ -173,9 +173,10 @@ xfs_dir2_block_getdents(
* Loop over the data portion of the block.
* Each object is a real entry (dep) or an unused one (dup).
*/
- offset = geo->data_entry_offset;
end = xfs_dir3_data_end_offset(geo, bp->b_addr);
- while (offset < end) {
+ for (offset = geo->data_entry_offset;
+ offset < end;
+ offset = next_offset) {
struct xfs_dir2_data_unused *dup = bp->b_addr + offset;
struct xfs_dir2_data_entry *dep = bp->b_addr + offset;
uint8_t filetype;
@@ -184,14 +185,15 @@ xfs_dir2_block_getdents(
* Unused, skip it.
*/
if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
- offset += be16_to_cpu(dup->length);
+ next_offset = offset + be16_to_cpu(dup->length);
continue;
}
/*
* Bump pointer for the next iteration.
*/
- offset += xfs_dir2_data_entsize(dp->i_mount, dep->namelen);
+ next_offset = offset +
+ xfs_dir2_data_entsize(dp->i_mount, dep->namelen);
/*
* The entry is before the desired starting point, skip it.
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index f6006d94a581..796ff37d5bb5 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -605,18 +605,23 @@ xfs_log_release_iclog(
struct xlog *log = mp->m_log;
bool sync;
- if (iclog->ic_state == XLOG_STATE_IOERROR) {
- xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR);
- return -EIO;
- }
+ if (iclog->ic_state == XLOG_STATE_IOERROR)
+ goto error;
if (atomic_dec_and_lock(&iclog->ic_refcnt, &log->l_icloglock)) {
+ if (iclog->ic_state == XLOG_STATE_IOERROR) {
+ spin_unlock(&log->l_icloglock);
+ goto error;
+ }
sync = __xlog_state_release_iclog(log, iclog);
spin_unlock(&log->l_icloglock);
if (sync)
xlog_sync(log, iclog);
}
return 0;
+error:
+ xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR);
+ return -EIO;
}
/*
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 47805172e73d..683e124ad517 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -297,6 +297,14 @@ static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
}
#endif
+static inline int call_on_cpu(int cpu, long (*fn)(void *), void *arg,
+ bool direct)
+{
+ if (direct || (is_percpu_thread() && cpu == smp_processor_id()))
+ return fn(arg);
+ return work_on_cpu(cpu, fn, arg);
+}
+
/* in processor_perflib.c */
#ifdef CONFIG_CPU_FREQ
diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
index b3f1082cc435..1c4fd950f091 100644
--- a/include/asm-generic/mshyperv.h
+++ b/include/asm-generic/mshyperv.h
@@ -163,7 +163,7 @@ static inline int cpumask_to_vpset(struct hv_vpset *vpset,
return nr_bank;
}
-void hyperv_report_panic(struct pt_regs *regs, long err);
+void hyperv_report_panic(struct pt_regs *regs, long err, bool in_die);
void hyperv_report_panic_msg(phys_addr_t pa, size_t size);
bool hv_is_hyperv_initialized(void);
bool hv_is_hibernation_supported(void);
diff --git a/include/keys/big_key-type.h b/include/keys/big_key-type.h
index f6a7ba4dccd4..3fee04f81439 100644
--- a/include/keys/big_key-type.h
+++ b/include/keys/big_key-type.h
@@ -17,6 +17,6 @@ extern void big_key_free_preparse(struct key_preparsed_payload *prep);
extern void big_key_revoke(struct key *key);
extern void big_key_destroy(struct key *key);
extern void big_key_describe(const struct key *big_key, struct seq_file *m);
-extern long big_key_read(const struct key *key, char __user *buffer, size_t buflen);
+extern long big_key_read(const struct key *key, char *buffer, size_t buflen);
#endif /* _KEYS_BIG_KEY_TYPE_H */
diff --git a/include/keys/user-type.h b/include/keys/user-type.h
index d5e73266a81a..be61fcddc02a 100644
--- a/include/keys/user-type.h
+++ b/include/keys/user-type.h
@@ -41,8 +41,7 @@ extern int user_update(struct key *key, struct key_preparsed_payload *prep);
extern void user_revoke(struct key *key);
extern void user_destroy(struct key *key);
extern void user_describe(const struct key *user, struct seq_file *m);
-extern long user_read(const struct key *key,
- char __user *buffer, size_t buflen);
+extern long user_read(const struct key *key, char *buffer, size_t buflen);
static inline const struct user_key_payload *user_key_payload_rcu(const struct key *key)
{
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 7b73ef7f902d..b56cc825f64d 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -189,6 +189,8 @@ struct buffer_head *__getblk_gfp(struct block_device *bdev, sector_t block,
void __brelse(struct buffer_head *);
void __bforget(struct buffer_head *);
void __breadahead(struct block_device *, sector_t block, unsigned int size);
+void __breadahead_gfp(struct block_device *, sector_t block, unsigned int size,
+ gfp_t gfp);
struct buffer_head *__bread_gfp(struct block_device *,
sector_t block, unsigned size, gfp_t gfp);
void invalidate_bh_lrus(void);
@@ -319,6 +321,12 @@ sb_breadahead(struct super_block *sb, sector_t block)
__breadahead(sb->s_bdev, block, sb->s_blocksize);
}
+static inline void
+sb_breadahead_unmovable(struct super_block *sb, sector_t block)
+{
+ __breadahead_gfp(sb->s_bdev, block, sb->s_blocksize, 0);
+}
+
static inline struct buffer_head *
sb_getblk(struct super_block *sb, sector_t block)
{
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 5e88e7e33abe..034b0a644efc 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -347,7 +347,7 @@ static inline void *offset_to_ptr(const int *off)
* compiler has support to do so.
*/
#define compiletime_assert(condition, msg) \
- _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
+ _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
#define compiletime_assert_atomic_type(t) \
compiletime_assert(__native_word(t), \
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index ac3f4888b3df..3c383ddd92dd 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -125,6 +125,7 @@ struct f2fs_super_block {
/*
* For checkpoint
*/
+#define CP_RESIZEFS_FLAG 0x00004000
#define CP_DISABLED_QUICK_FLAG 0x00002000
#define CP_DISABLED_FLAG 0x00001000
#define CP_QUOTA_NEED_FSCK_FLAG 0x00000800
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 1e897e4168ac..dafb3d70ff81 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -390,7 +390,10 @@ static inline bool is_file_hugepages(struct file *file)
return is_file_shm_hugepages(file);
}
-
+static inline struct hstate *hstate_inode(struct inode *i)
+{
+ return HUGETLBFS_SB(i->i_sb)->hstate;
+}
#else /* !CONFIG_HUGETLBFS */
#define is_file_hugepages(file) false
@@ -402,6 +405,10 @@ hugetlb_file_setup(const char *name, size_t size, vm_flags_t acctflag,
return ERR_PTR(-ENOSYS);
}
+static inline struct hstate *hstate_inode(struct inode *i)
+{
+ return NULL;
+}
#endif /* !CONFIG_HUGETLBFS */
#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
@@ -472,11 +479,6 @@ extern unsigned int default_hstate_idx;
#define default_hstate (hstates[default_hstate_idx])
-static inline struct hstate *hstate_inode(struct inode *i)
-{
- return HUGETLBFS_SB(i->i_sb)->hstate;
-}
-
static inline struct hstate *hstate_file(struct file *f)
{
return hstate_inode(file_inode(f));
@@ -729,11 +731,6 @@ static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
return NULL;
}
-static inline struct hstate *hstate_inode(struct inode *i)
-{
- return NULL;
-}
-
static inline struct hstate *page_hstate(struct page *page)
{
return NULL;
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 4ded94bcf274..2ab2d6d6aeab 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -127,7 +127,7 @@ struct key_type {
* much is copied into the buffer
* - shouldn't do the copy if the buffer is NULL
*/
- long (*read)(const struct key *key, char __user *buffer, size_t buflen);
+ long (*read)(const struct key *key, char *buffer, size_t buflen);
/* handle request_key() for this type instead of invoking
* /sbin/request-key (optional)
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index 4f052496cdfd..0a4f54dd4737 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -78,9 +78,9 @@ static inline s64 percpu_counter_read(struct percpu_counter *fbc)
*/
static inline s64 percpu_counter_read_positive(struct percpu_counter *fbc)
{
- s64 ret = fbc->count;
+ /* Prevent reloads of fbc->count */
+ s64 ret = READ_ONCE(fbc->count);
- barrier(); /* Prevent reloads of fbc->count */
if (ret >= 0)
return ret;
return 0;
diff --git a/include/linux/platform_data/cros_ec_proto.h b/include/linux/platform_data/cros_ec_proto.h
index ba5914770191..383243326676 100644
--- a/include/linux/platform_data/cros_ec_proto.h
+++ b/include/linux/platform_data/cros_ec_proto.h
@@ -125,6 +125,9 @@ struct cros_ec_command {
* @host_event_wake_mask: Mask of host events that cause wake from suspend.
* @last_event_time: exact time from the hard irq when we got notified of
* a new event.
+ * @notifier_ready: The notifier_block to let the kernel re-query EC
+ * communication protocol when the EC sends
+ * EC_HOST_EVENT_INTERFACE_READY.
* @ec: The platform_device used by the mfd driver to interface with the
* main EC.
* @pd: The platform_device used by the mfd driver to interface with the
@@ -166,6 +169,7 @@ struct cros_ec_device {
u32 host_event_wake_mask;
u32 last_resume_result;
ktime_t last_event_time;
+ struct notifier_block notifier_ready;
/* The platform devices used by the mfd driver */
struct platform_device *ec;
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 877fd239b6ff..3208a520d0be 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -348,7 +348,8 @@ static inline void num_poisoned_pages_inc(void)
}
#endif
-#if defined(CONFIG_MEMORY_FAILURE) || defined(CONFIG_MIGRATION)
+#if defined(CONFIG_MEMORY_FAILURE) || defined(CONFIG_MIGRATION) || \
+ defined(CONFIG_DEVICE_PRIVATE)
static inline int non_swap_entry(swp_entry_t entry)
{
return swp_type(entry) >= MAX_SWAPFILES;
diff --git a/include/trace/bpf_probe.h b/include/trace/bpf_probe.h
index b04c29270973..1ce3be63add1 100644
--- a/include/trace/bpf_probe.h
+++ b/include/trace/bpf_probe.h
@@ -75,13 +75,17 @@ static inline void bpf_test_probe_##call(void) \
check_trace_callback_type_##call(__bpf_trace_##template); \
} \
typedef void (*btf_trace_##call)(void *__data, proto); \
-static struct bpf_raw_event_map __used \
- __attribute__((section("__bpf_raw_tp_map"))) \
-__bpf_trace_tp_map_##call = { \
- .tp = &__tracepoint_##call, \
- .bpf_func = (void *)(btf_trace_##call)__bpf_trace_##template, \
- .num_args = COUNT_ARGS(args), \
- .writable_size = size, \
+static union { \
+ struct bpf_raw_event_map event; \
+ btf_trace_##call handler; \
+} __bpf_trace_tp_map_##call __used \
+__attribute__((section("__bpf_raw_tp_map"))) = { \
+ .event = { \
+ .tp = &__tracepoint_##call, \
+ .bpf_func = __bpf_trace_##template, \
+ .num_args = COUNT_ARGS(args), \
+ .writable_size = size, \
+ }, \
};
#define FIRST(x, ...) x
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 966b7b34cde0..3b92aea18ae7 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -592,9 +592,7 @@ static void bpf_map_mmap_open(struct vm_area_struct *vma)
{
struct bpf_map *map = vma->vm_file->private_data;
- bpf_map_inc_with_uref(map);
-
- if (vma->vm_flags & VM_WRITE) {
+ if (vma->vm_flags & VM_MAYWRITE) {
mutex_lock(&map->freeze_mutex);
map->writecnt++;
mutex_unlock(&map->freeze_mutex);
@@ -606,13 +604,11 @@ static void bpf_map_mmap_close(struct vm_area_struct *vma)
{
struct bpf_map *map = vma->vm_file->private_data;
- if (vma->vm_flags & VM_WRITE) {
+ if (vma->vm_flags & VM_MAYWRITE) {
mutex_lock(&map->freeze_mutex);
map->writecnt--;
mutex_unlock(&map->freeze_mutex);
}
-
- bpf_map_put_with_uref(map);
}
static const struct vm_operations_struct bpf_map_default_vmops = {
@@ -641,14 +637,16 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
/* set default open/close callbacks */
vma->vm_ops = &bpf_map_default_vmops;
vma->vm_private_data = map;
+ vma->vm_flags &= ~VM_MAYEXEC;
+ if (!(vma->vm_flags & VM_WRITE))
+ /* disallow re-mapping with PROT_WRITE */
+ vma->vm_flags &= ~VM_MAYWRITE;
err = map->ops->map_mmap(map, vma);
if (err)
goto out;
- bpf_map_inc_with_uref(map);
-
- if (vma->vm_flags & VM_WRITE)
+ if (vma->vm_flags & VM_MAYWRITE)
map->writecnt++;
out:
mutex_unlock(&map->freeze_mutex);
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 595b39eee642..e5d12c54b552 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -227,8 +227,7 @@ struct bpf_call_arg_meta {
bool pkt_access;
int regno;
int access_size;
- s64 msize_smax_value;
- u64 msize_umax_value;
+ u64 msize_max_value;
int ref_obj_id;
int func_id;
u32 btf_id;
@@ -3568,8 +3567,7 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 regno,
/* remember the mem_size which may be used later
* to refine return values.
*/
- meta->msize_smax_value = reg->smax_value;
- meta->msize_umax_value = reg->umax_value;
+ meta->msize_max_value = reg->umax_value;
/* The register is SCALAR_VALUE; the access check
* happens using its boundaries.
@@ -4095,21 +4093,44 @@ static int prepare_func_exit(struct bpf_verifier_env *env, int *insn_idx)
return 0;
}
-static void do_refine_retval_range(struct bpf_reg_state *regs, int ret_type,
- int func_id,
- struct bpf_call_arg_meta *meta)
+static int do_refine_retval_range(struct bpf_verifier_env *env,
+ struct bpf_reg_state *regs, int ret_type,
+ int func_id, struct bpf_call_arg_meta *meta)
{
struct bpf_reg_state *ret_reg = ®s[BPF_REG_0];
+ struct bpf_reg_state tmp_reg = *ret_reg;
+ bool ret;
if (ret_type != RET_INTEGER ||
(func_id != BPF_FUNC_get_stack &&
func_id != BPF_FUNC_probe_read_str))
- return;
+ return 0;
+
+ /* Error case where ret is in interval [S32MIN, -1]. */
+ ret_reg->smin_value = S32_MIN;
+ ret_reg->smax_value = -1;
- ret_reg->smax_value = meta->msize_smax_value;
- ret_reg->umax_value = meta->msize_umax_value;
__reg_deduce_bounds(ret_reg);
__reg_bound_offset(ret_reg);
+ __update_reg_bounds(ret_reg);
+
+ ret = push_stack(env, env->insn_idx + 1, env->insn_idx, false);
+ if (!ret)
+ return -EFAULT;
+
+ *ret_reg = tmp_reg;
+
+ /* Success case where ret is in range [0, msize_max_value]. */
+ ret_reg->smin_value = 0;
+ ret_reg->smax_value = meta->msize_max_value;
+ ret_reg->umin_value = ret_reg->smin_value;
+ ret_reg->umax_value = ret_reg->smax_value;
+
+ __reg_deduce_bounds(ret_reg);
+ __reg_bound_offset(ret_reg);
+ __update_reg_bounds(ret_reg);
+
+ return 0;
}
static int
@@ -4377,7 +4398,9 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn
regs[BPF_REG_0].ref_obj_id = id;
}
- do_refine_retval_range(regs, fn->ret_type, func_id, &meta);
+ err = do_refine_retval_range(env, regs, fn->ret_type, func_id, &meta);
+ if (err)
+ return err;
err = check_map_func_compatibility(env, meta.map_ptr, func_id);
if (err)
diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c
index 551b0eb7028a..2a0c4985f38e 100644
--- a/kernel/dma/coherent.c
+++ b/kernel/dma/coherent.c
@@ -134,7 +134,7 @@ static void *__dma_alloc_from_coherent(struct device *dev,
spin_lock_irqsave(&mem->spinlock, flags);
- if (unlikely(size > (mem->size << PAGE_SHIFT)))
+ if (unlikely(size > ((dma_addr_t)mem->size << PAGE_SHIFT)))
goto err;
pageno = bitmap_find_free_region(mem->bitmap, mem->size, order);
@@ -144,8 +144,9 @@ static void *__dma_alloc_from_coherent(struct device *dev,
/*
* Memory was found in the coherent area.
*/
- *dma_handle = dma_get_device_base(dev, mem) + (pageno << PAGE_SHIFT);
- ret = mem->virt_base + (pageno << PAGE_SHIFT);
+ *dma_handle = dma_get_device_base(dev, mem) +
+ ((dma_addr_t)pageno << PAGE_SHIFT);
+ ret = mem->virt_base + ((dma_addr_t)pageno << PAGE_SHIFT);
spin_unlock_irqrestore(&mem->spinlock, flags);
memset(ret, 0, size);
return ret;
@@ -194,7 +195,7 @@ static int __dma_release_from_coherent(struct dma_coherent_mem *mem,
int order, void *vaddr)
{
if (mem && vaddr >= mem->virt_base && vaddr <
- (mem->virt_base + (mem->size << PAGE_SHIFT))) {
+ (mem->virt_base + ((dma_addr_t)mem->size << PAGE_SHIFT))) {
int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
unsigned long flags;
@@ -238,10 +239,10 @@ static int __dma_mmap_from_coherent(struct dma_coherent_mem *mem,
struct vm_area_struct *vma, void *vaddr, size_t size, int *ret)
{
if (mem && vaddr >= mem->virt_base && vaddr + size <=
- (mem->virt_base + (mem->size << PAGE_SHIFT))) {
+ (mem->virt_base + ((dma_addr_t)mem->size << PAGE_SHIFT))) {
unsigned long off = vma->vm_pgoff;
int start = (vaddr - mem->virt_base) >> PAGE_SHIFT;
- int user_count = vma_pages(vma);
+ unsigned long user_count = vma_pages(vma);
int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
*ret = -ENXIO;
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 2031ed1ad7fa..9e1777c81f55 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -137,9 +137,12 @@ static const char *const maperr2str[] = {
[MAP_ERR_CHECKED] = "dma map error checked",
};
-static const char *type2name[5] = { "single", "page",
- "scather-gather", "coherent",
- "resource" };
+static const char *type2name[] = {
+ [dma_debug_single] = "single",
+ [dma_debug_sg] = "scather-gather",
+ [dma_debug_coherent] = "coherent",
+ [dma_debug_resource] = "resource",
+};
static const char *dir2name[4] = { "DMA_BIDIRECTIONAL", "DMA_TO_DEVICE",
"DMA_FROM_DEVICE", "DMA_NONE" };
diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c
index 99475a66c94f..687c1d83dc20 100644
--- a/kernel/locking/locktorture.c
+++ b/kernel/locking/locktorture.c
@@ -696,10 +696,10 @@ static void __torture_print_stats(char *page,
if (statp[i].n_lock_fail)
fail = true;
sum += statp[i].n_lock_acquired;
- if (max < statp[i].n_lock_fail)
- max = statp[i].n_lock_fail;
- if (min > statp[i].n_lock_fail)
- min = statp[i].n_lock_fail;
+ if (max < statp[i].n_lock_acquired)
+ max = statp[i].n_lock_acquired;
+ if (min > statp[i].n_lock_acquired)
+ min = statp[i].n_lock_acquired;
}
page += sprintf(page,
"%s: Total: %lld Max/Min: %ld/%ld %s Fail: %d %s\n",
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 69def4a9df00..ab9af2e052ca 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -241,6 +241,8 @@ config DEBUG_INFO_DWARF4
config DEBUG_INFO_BTF
bool "Generate BTF typeinfo"
depends on DEBUG_INFO
+ depends on !DEBUG_INFO_SPLIT && !DEBUG_INFO_REDUCED
+ depends on !GCC_PLUGIN_RANDSTRUCT || COMPILE_TEST
help
Generate deduplicated BTF type information from DWARF debug info.
Turning this on expects presence of pahole tool, which will convert
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index 3e1a90669006..ad53eb31d40f 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -302,7 +302,7 @@ static void dns_resolver_describe(const struct key *key, struct seq_file *m)
* - the key's semaphore is read-locked
*/
static long dns_resolver_read(const struct key *key,
- char __user *buffer, size_t buflen)
+ char *buffer, size_t buflen)
{
int err = PTR_ERR(key->payload.data[dns_key_error]);
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index d11f1a74d43c..68ec31c4ae65 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3950,7 +3950,7 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
NFT_SET_INTERVAL | NFT_SET_TIMEOUT |
NFT_SET_MAP | NFT_SET_EVAL |
NFT_SET_OBJECT))
- return -EINVAL;
+ return -EOPNOTSUPP;
/* Only one of these operations is supported */
if ((flags & (NFT_SET_MAP | NFT_SET_OBJECT)) ==
(NFT_SET_MAP | NFT_SET_OBJECT))
@@ -3988,7 +3988,7 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
objtype = ntohl(nla_get_be32(nla[NFTA_SET_OBJ_TYPE]));
if (objtype == NFT_OBJECT_UNSPEC ||
objtype > NFT_OBJECT_MAX)
- return -EINVAL;
+ return -EOPNOTSUPP;
} else if (flags & NFT_SET_OBJECT)
return -EINVAL;
else
diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c
index 8617fc16a1ed..46d976969ca3 100644
--- a/net/netfilter/nft_set_rbtree.c
+++ b/net/netfilter/nft_set_rbtree.c
@@ -218,27 +218,26 @@ static int __nft_rbtree_insert(const struct net *net, const struct nft_set *set,
/* Detect overlaps as we descend the tree. Set the flag in these cases:
*
- * a1. |__ _ _? >|__ _ _ (insert start after existing start)
- * a2. _ _ __>| ?_ _ __| (insert end before existing end)
- * a3. _ _ ___| ?_ _ _>| (insert end after existing end)
- * a4. >|__ _ _ _ _ __| (insert start before existing end)
+ * a1. _ _ __>| ?_ _ __| (insert end before existing end)
+ * a2. _ _ ___| ?_ _ _>| (insert end after existing end)
+ * a3. _ _ ___? >|_ _ __| (insert start before existing end)
*
* and clear it later on, as we eventually reach the points indicated by
* '?' above, in the cases described below. We'll always meet these
* later, locally, due to tree ordering, and overlaps for the intervals
* that are the closest together are always evaluated last.
*
- * b1. |__ _ _! >|__ _ _ (insert start after existing end)
- * b2. _ _ __>| !_ _ __| (insert end before existing start)
- * b3. !_____>| (insert end after existing start)
+ * b1. _ _ __>| !_ _ __| (insert end before existing start)
+ * b2. _ _ ___| !_ _ _>| (insert end after existing start)
+ * b3. _ _ ___! >|_ _ __| (insert start after existing end)
*
- * Case a4. resolves to b1.:
+ * Case a3. resolves to b3.:
* - if the inserted start element is the leftmost, because the '0'
* element in the tree serves as end element
* - otherwise, if an existing end is found. Note that end elements are
* always inserted after corresponding start elements.
*
- * For a new, rightmost pair of elements, we'll hit cases b1. and b3.,
+ * For a new, rightmost pair of elements, we'll hit cases b3. and b2.,
* in that order.
*
* The flag is also cleared in two special cases:
@@ -262,9 +261,9 @@ static int __nft_rbtree_insert(const struct net *net, const struct nft_set *set,
p = &parent->rb_left;
if (nft_rbtree_interval_start(new)) {
- overlap = nft_rbtree_interval_start(rbe) &&
- nft_set_elem_active(&rbe->ext,
- genmask);
+ if (nft_rbtree_interval_end(rbe) &&
+ nft_set_elem_active(&rbe->ext, genmask))
+ overlap = false;
} else {
overlap = nft_rbtree_interval_end(rbe) &&
nft_set_elem_active(&rbe->ext,
diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c
index 6c3f35fac42d..0c98313dd7a8 100644
--- a/net/rxrpc/key.c
+++ b/net/rxrpc/key.c
@@ -31,7 +31,7 @@ static void rxrpc_free_preparse_s(struct key_preparsed_payload *);
static void rxrpc_destroy(struct key *);
static void rxrpc_destroy_s(struct key *);
static void rxrpc_describe(const struct key *, struct seq_file *);
-static long rxrpc_read(const struct key *, char __user *, size_t);
+static long rxrpc_read(const struct key *, char *, size_t);
/*
* rxrpc defined keys take an arbitrary string as the description and an
@@ -1042,12 +1042,12 @@ EXPORT_SYMBOL(rxrpc_get_null_key);
* - this returns the result in XDR form
*/
static long rxrpc_read(const struct key *key,
- char __user *buffer, size_t buflen)
+ char *buffer, size_t buflen)
{
const struct rxrpc_key_token *token;
const struct krb5_principal *princ;
size_t size;
- __be32 __user *xdr, *oldxdr;
+ __be32 *xdr, *oldxdr;
u32 cnlen, toksize, ntoks, tok, zero;
u16 toksizes[AFSTOKEN_MAX];
int loop;
@@ -1124,30 +1124,25 @@ static long rxrpc_read(const struct key *key,
if (!buffer || buflen < size)
return size;
- xdr = (__be32 __user *) buffer;
+ xdr = (__be32 *)buffer;
zero = 0;
#define ENCODE(x) \
do { \
- __be32 y = htonl(x); \
- if (put_user(y, xdr++) < 0) \
- goto fault; \
+ *xdr++ = htonl(x); \
} while(0)
#define ENCODE_DATA(l, s) \
do { \
u32 _l = (l); \
ENCODE(l); \
- if (copy_to_user(xdr, (s), _l) != 0) \
- goto fault; \
- if (_l & 3 && \
- copy_to_user((u8 __user *)xdr + _l, &zero, 4 - (_l & 3)) != 0) \
- goto fault; \
+ memcpy(xdr, (s), _l); \
+ if (_l & 3) \
+ memcpy((u8 *)xdr + _l, &zero, 4 - (_l & 3)); \
xdr += (_l + 3) >> 2; \
} while(0)
#define ENCODE64(x) \
do { \
__be64 y = cpu_to_be64(x); \
- if (copy_to_user(xdr, &y, 8) != 0) \
- goto fault; \
+ memcpy(xdr, &y, 8); \
xdr += 8 >> 2; \
} while(0)
#define ENCODE_STR(s) \
@@ -1238,8 +1233,4 @@ static long rxrpc_read(const struct key *key,
ASSERTCMP((char __user *) xdr - buffer, ==, size);
_leave(" = %zu", size);
return size;
-
-fault:
- _leave(" = -EFAULT");
- return -EFAULT;
}
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 24ca861815b1..2dc740acb3bf 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -20,6 +20,7 @@
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/auth.h>
#include <linux/sunrpc/auth_gss.h>
+#include <linux/sunrpc/gss_krb5.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/gss_err.h>
#include <linux/workqueue.h>
@@ -1050,7 +1051,7 @@ gss_create_new(const struct rpc_auth_create_args *args, struct rpc_clnt *clnt)
goto err_put_mech;
auth = &gss_auth->rpc_auth;
auth->au_cslack = GSS_CRED_SLACK >> 2;
- auth->au_rslack = GSS_VERF_SLACK >> 2;
+ auth->au_rslack = GSS_KRB5_MAX_SLACK_NEEDED >> 2;
auth->au_verfsize = GSS_VERF_SLACK >> 2;
auth->au_ralign = GSS_VERF_SLACK >> 2;
auth->au_flags = 0;
@@ -1934,35 +1935,69 @@ gss_unwrap_resp_auth(struct rpc_cred *cred)
return 0;
}
+/*
+ * RFC 2203, Section 5.3.2.2
+ *
+ * struct rpc_gss_integ_data {
+ * opaque databody_integ<>;
+ * opaque checksum<>;
+ * };
+ *
+ * struct rpc_gss_data_t {
+ * unsigned int seq_num;
+ * proc_req_arg_t arg;
+ * };
+ */
static int
gss_unwrap_resp_integ(struct rpc_task *task, struct rpc_cred *cred,
struct gss_cl_ctx *ctx, struct rpc_rqst *rqstp,
struct xdr_stream *xdr)
{
- struct xdr_buf integ_buf, *rcv_buf = &rqstp->rq_rcv_buf;
- u32 data_offset, mic_offset, integ_len, maj_stat;
+ struct xdr_buf gss_data, *rcv_buf = &rqstp->rq_rcv_buf;
struct rpc_auth *auth = cred->cr_auth;
+ u32 len, offset, seqno, maj_stat;
struct xdr_netobj mic;
- __be32 *p;
+ int ret;
- p = xdr_inline_decode(xdr, 2 * sizeof(*p));
- if (unlikely(!p))
+ ret = -EIO;
+ mic.data = NULL;
+
+ /* opaque databody_integ<>; */
+ if (xdr_stream_decode_u32(xdr, &len))
goto unwrap_failed;
- integ_len = be32_to_cpup(p++);
- if (integ_len & 3)
+ if (len & 3)
goto unwrap_failed;
- data_offset = (u8 *)(p) - (u8 *)rcv_buf->head[0].iov_base;
- mic_offset = integ_len + data_offset;
- if (mic_offset > rcv_buf->len)
+ offset = rcv_buf->len - xdr_stream_remaining(xdr);
+ if (xdr_stream_decode_u32(xdr, &seqno))
goto unwrap_failed;
- if (be32_to_cpup(p) != rqstp->rq_seqno)
+ if (seqno != rqstp->rq_seqno)
goto bad_seqno;
+ if (xdr_buf_subsegment(rcv_buf, &gss_data, offset, len))
+ goto unwrap_failed;
- if (xdr_buf_subsegment(rcv_buf, &integ_buf, data_offset, integ_len))
+ /*
+ * The xdr_stream now points to the beginning of the
+ * upper layer payload, to be passed below to
+ * rpcauth_unwrap_resp_decode(). The checksum, which
+ * follows the upper layer payload in @rcv_buf, is
+ * located and parsed without updating the xdr_stream.
+ */
+
+ /* opaque checksum<>; */
+ offset += len;
+ if (xdr_decode_word(rcv_buf, offset, &len))
+ goto unwrap_failed;
+ offset += sizeof(__be32);
+ if (offset + len > rcv_buf->len)
goto unwrap_failed;
- if (xdr_buf_read_mic(rcv_buf, &mic, mic_offset))
+ mic.len = len;
+ mic.data = kmalloc(len, GFP_NOFS);
+ if (!mic.data)
+ goto unwrap_failed;
+ if (read_bytes_from_xdr_buf(rcv_buf, offset, mic.data, mic.len))
goto unwrap_failed;
- maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &integ_buf, &mic);
+
+ maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &gss_data, &mic);
if (maj_stat == GSS_S_CONTEXT_EXPIRED)
clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags);
if (maj_stat != GSS_S_COMPLETE)
@@ -1970,16 +2005,21 @@ gss_unwrap_resp_integ(struct rpc_task *task, struct rpc_cred *cred,
auth->au_rslack = auth->au_verfsize + 2 + 1 + XDR_QUADLEN(mic.len);
auth->au_ralign = auth->au_verfsize + 2;
- return 0;
+ ret = 0;
+
+out:
+ kfree(mic.data);
+ return ret;
+
unwrap_failed:
trace_rpcgss_unwrap_failed(task);
- return -EIO;
+ goto out;
bad_seqno:
- trace_rpcgss_bad_seqno(task, rqstp->rq_seqno, be32_to_cpup(p));
- return -EIO;
+ trace_rpcgss_bad_seqno(task, rqstp->rq_seqno, seqno);
+ goto out;
bad_mic:
trace_rpcgss_verify_mic(task, maj_stat);
- return -EIO;
+ goto out;
}
static int
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index fa7bb5e060d0..ed7a6060f73c 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -343,7 +343,7 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr)
u32 chunk_size = mr->chunk_size, headroom = mr->headroom;
unsigned int chunks, chunks_per_page;
u64 addr = mr->addr, size = mr->len;
- int size_chk, err;
+ int err;
if (chunk_size < XDP_UMEM_MIN_CHUNK_SIZE || chunk_size > PAGE_SIZE) {
/* Strictly speaking we could support this, if:
@@ -382,8 +382,7 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr)
return -EINVAL;
}
- size_chk = chunk_size - headroom - XDP_PACKET_HEADROOM;
- if (size_chk < 0)
+ if (headroom >= chunk_size - XDP_PACKET_HEADROOM)
return -EINVAL;
umem->address = (unsigned long)addr;
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 356f90e4522b..c350108aa38d 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -131,8 +131,9 @@ static void __xsk_rcv_memcpy(struct xdp_umem *umem, u64 addr, void *from_buf,
u64 page_start = addr & ~(PAGE_SIZE - 1);
u64 first_len = PAGE_SIZE - (addr - page_start);
- memcpy(to_buf, from_buf, first_len + metalen);
- memcpy(next_pg_addr, from_buf + first_len, len - first_len);
+ memcpy(to_buf, from_buf, first_len);
+ memcpy(next_pg_addr, from_buf + first_len,
+ len + metalen - first_len);
return;
}
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 001abe530a0d..82008f900930 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -352,7 +352,7 @@ void big_key_describe(const struct key *key, struct seq_file *m)
* read the key data
* - the key's semaphore is read-locked
*/
-long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
+long big_key_read(const struct key *key, char *buffer, size_t buflen)
{
size_t datalen = (size_t)key->payload.data[big_key_len];
long ret;
@@ -391,9 +391,8 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
ret = datalen;
- /* copy decrypted data to user */
- if (copy_to_user(buffer, buf->virt, datalen) != 0)
- ret = -EFAULT;
+ /* copy out decrypted data */
+ memcpy(buffer, buf->virt, datalen);
err_fput:
fput(file);
@@ -401,9 +400,7 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
big_key_free_buffer(buf);
} else {
ret = datalen;
- if (copy_to_user(buffer, key->payload.data[big_key_data],
- datalen) != 0)
- ret = -EFAULT;
+ memcpy(buffer, key->payload.data[big_key_data], datalen);
}
return ret;
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 60720f58cbe0..f6797ba44bf7 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -902,14 +902,14 @@ static int encrypted_update(struct key *key, struct key_preparsed_payload *prep)
}
/*
- * encrypted_read - format and copy the encrypted data to userspace
+ * encrypted_read - format and copy out the encrypted data
*
* The resulting datablob format is:
* <master-key name> <decrypted data length> <encrypted iv> <encrypted data>
*
* On success, return to userspace the encrypted key datablob size.
*/
-static long encrypted_read(const struct key *key, char __user *buffer,
+static long encrypted_read(const struct key *key, char *buffer,
size_t buflen)
{
struct encrypted_key_payload *epayload;
@@ -957,8 +957,7 @@ static long encrypted_read(const struct key *key, char __user *buffer,
key_put(mkey);
memzero_explicit(derived_key, sizeof(derived_key));
- if (copy_to_user(buffer, ascii_buf, asciiblob_len) != 0)
- ret = -EFAULT;
+ memcpy(buffer, ascii_buf, asciiblob_len);
kzfree(ascii_buf);
return asciiblob_len;
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index d1a3dea58dee..106e16f9006b 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -797,6 +797,21 @@ long keyctl_keyring_search(key_serial_t ringid,
return ret;
}
+/*
+ * Call the read method
+ */
+static long __keyctl_read_key(struct key *key, char *buffer, size_t buflen)
+{
+ long ret;
+
+ down_read(&key->sem);
+ ret = key_validate(key);
+ if (ret == 0)
+ ret = key->type->read(key, buffer, buflen);
+ up_read(&key->sem);
+ return ret;
+}
+
/*
* Read a key's payload.
*
@@ -812,26 +827,27 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)
struct key *key;
key_ref_t key_ref;
long ret;
+ char *key_data;
/* find the key first */
key_ref = lookup_user_key(keyid, 0, 0);
if (IS_ERR(key_ref)) {
ret = -ENOKEY;
- goto error;
+ goto out;
}
key = key_ref_to_ptr(key_ref);
ret = key_read_state(key);
if (ret < 0)
- goto error2; /* Negatively instantiated */
+ goto key_put_out; /* Negatively instantiated */
/* see if we can read it directly */
ret = key_permission(key_ref, KEY_NEED_READ);
if (ret == 0)
goto can_read_key;
if (ret != -EACCES)
- goto error2;
+ goto key_put_out;
/* we can't; see if it's searchable from this process's keyrings
* - we automatically take account of the fact that it may be
@@ -839,26 +855,51 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)
*/
if (!is_key_possessed(key_ref)) {
ret = -EACCES;
- goto error2;
+ goto key_put_out;
}
/* the key is probably readable - now try to read it */
can_read_key:
- ret = -EOPNOTSUPP;
- if (key->type->read) {
- /* Read the data with the semaphore held (since we might sleep)
- * to protect against the key being updated or revoked.
- */
- down_read(&key->sem);
- ret = key_validate(key);
- if (ret == 0)
- ret = key->type->read(key, buffer, buflen);
- up_read(&key->sem);
+ if (!key->type->read) {
+ ret = -EOPNOTSUPP;
+ goto key_put_out;
}
-error2:
+ if (!buffer || !buflen) {
+ /* Get the key length from the read method */
+ ret = __keyctl_read_key(key, NULL, 0);
+ goto key_put_out;
+ }
+
+ /*
+ * Read the data with the semaphore held (since we might sleep)
+ * to protect against the key being updated or revoked.
+ *
+ * Allocating a temporary buffer to hold the keys before
+ * transferring them to user buffer to avoid potential
+ * deadlock involving page fault and mmap_sem.
+ */
+ key_data = kmalloc(buflen, GFP_KERNEL);
+
+ if (!key_data) {
+ ret = -ENOMEM;
+ goto key_put_out;
+ }
+ ret = __keyctl_read_key(key, key_data, buflen);
+
+ /*
+ * Read methods will just return the required length without
+ * any copying if the provided length isn't large enough.
+ */
+ if (ret > 0 && ret <= buflen) {
+ if (copy_to_user(buffer, key_data, ret))
+ ret = -EFAULT;
+ }
+ kzfree(key_data);
+
+key_put_out:
key_put(key);
-error:
+out:
return ret;
}
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index febf36c6ddc5..5ca620d31cd3 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -459,7 +459,6 @@ static int keyring_read_iterator(const void *object, void *data)
{
struct keyring_read_iterator_context *ctx = data;
const struct key *key = keyring_ptr_to_key(object);
- int ret;
kenter("{%s,%d},,{%zu/%zu}",
key->type->name, key->serial, ctx->count, ctx->buflen);
@@ -467,10 +466,7 @@ static int keyring_read_iterator(const void *object, void *data)
if (ctx->count >= ctx->buflen)
return 1;
- ret = put_user(key->serial, ctx->buffer);
- if (ret < 0)
- return ret;
- ctx->buffer++;
+ *ctx->buffer++ = key->serial;
ctx->count += sizeof(key->serial);
return 0;
}
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index ecba39c93fd9..41e9735006d0 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -22,7 +22,7 @@ static int request_key_auth_instantiate(struct key *,
static void request_key_auth_describe(const struct key *, struct seq_file *);
static void request_key_auth_revoke(struct key *);
static void request_key_auth_destroy(struct key *);
-static long request_key_auth_read(const struct key *, char __user *, size_t);
+static long request_key_auth_read(const struct key *, char *, size_t);
/*
* The request-key authorisation key type definition.
@@ -80,7 +80,7 @@ static void request_key_auth_describe(const struct key *key,
* - the key's semaphore is read-locked
*/
static long request_key_auth_read(const struct key *key,
- char __user *buffer, size_t buflen)
+ char *buffer, size_t buflen)
{
struct request_key_auth *rka = dereference_key_locked(key);
size_t datalen;
@@ -97,8 +97,7 @@ static long request_key_auth_read(const struct key *key,
if (buflen > datalen)
buflen = datalen;
- if (copy_to_user(buffer, rka->callout_info, buflen) != 0)
- ret = -EFAULT;
+ memcpy(buffer, rka->callout_info, buflen);
}
return ret;
diff --git a/security/keys/trusted-keys/trusted_tpm1.c b/security/keys/trusted-keys/trusted_tpm1.c
index d2c5ec1e040b..8001ab07e63b 100644
--- a/security/keys/trusted-keys/trusted_tpm1.c
+++ b/security/keys/trusted-keys/trusted_tpm1.c
@@ -1130,11 +1130,10 @@ static int trusted_update(struct key *key, struct key_preparsed_payload *prep)
* trusted_read - copy the sealed blob data to userspace in hex.
* On success, return to userspace the trusted key datablob size.
*/
-static long trusted_read(const struct key *key, char __user *buffer,
+static long trusted_read(const struct key *key, char *buffer,
size_t buflen)
{
const struct trusted_key_payload *p;
- char *ascii_buf;
char *bufp;
int i;
@@ -1143,18 +1142,9 @@ static long trusted_read(const struct key *key, char __user *buffer,
return -EINVAL;
if (buffer && buflen >= 2 * p->blob_len) {
- ascii_buf = kmalloc_array(2, p->blob_len, GFP_KERNEL);
- if (!ascii_buf)
- return -ENOMEM;
-
- bufp = ascii_buf;
+ bufp = buffer;
for (i = 0; i < p->blob_len; i++)
bufp = hex_byte_pack(bufp, p->blob[i]);
- if (copy_to_user(buffer, ascii_buf, 2 * p->blob_len) != 0) {
- kzfree(ascii_buf);
- return -EFAULT;
- }
- kzfree(ascii_buf);
}
return 2 * p->blob_len;
}
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index 6f12de4ce549..07d4287e9084 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -168,7 +168,7 @@ EXPORT_SYMBOL_GPL(user_describe);
* read the key data
* - the key's semaphore is read-locked
*/
-long user_read(const struct key *key, char __user *buffer, size_t buflen)
+long user_read(const struct key *key, char *buffer, size_t buflen)
{
const struct user_key_payload *upayload;
long ret;
@@ -181,8 +181,7 @@ long user_read(const struct key *key, char __user *buffer, size_t buflen)
if (buflen > upayload->datalen)
buflen = upayload->datalen;
- if (copy_to_user(buffer, upayload->data, buflen) != 0)
- ret = -EFAULT;
+ memcpy(buffer, upayload->data, buflen);
}
return ret;
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index bd093593f8fb..f41d8b7864c1 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1071,6 +1071,8 @@ static int azx_freeze_noirq(struct device *dev)
struct azx *chip = card->private_data;
struct pci_dev *pci = to_pci_dev(dev);
+ if (!azx_is_pm_ready(card))
+ return 0;
if (chip->driver_type == AZX_DRIVER_SKL)
pci_set_power_state(pci, PCI_D3hot);
@@ -1083,6 +1085,8 @@ static int azx_thaw_noirq(struct device *dev)
struct azx *chip = card->private_data;
struct pci_dev *pci = to_pci_dev(dev);
+ if (!azx_is_pm_ready(card))
+ return 0;
if (chip->driver_type == AZX_DRIVER_SKL)
pci_set_power_state(pci, PCI_D0);
@@ -2027,24 +2031,15 @@ static void azx_firmware_cb(const struct firmware *fw, void *context)
{
struct snd_card *card = context;
struct azx *chip = card->private_data;
- struct pci_dev *pci = chip->pci;
- if (!fw) {
- dev_err(card->dev, "Cannot load firmware, aborting\n");
- goto error;
- }
-
- chip->fw = fw;
+ if (fw)
+ chip->fw = fw;
+ else
+ dev_err(card->dev, "Cannot load firmware, continue without patching\n");
if (!chip->disabled) {
/* continue probing */
- if (azx_probe_continue(chip))
- goto error;
+ azx_probe_continue(chip);
}
- return; /* OK */
-
- error:
- snd_card_free(card);
- pci_set_drvdata(pci, NULL);
}
#endif
diff --git a/tools/lib/bpf/netlink.c b/tools/lib/bpf/netlink.c
index 431bd25c6cdb..6d47345a310b 100644
--- a/tools/lib/bpf/netlink.c
+++ b/tools/lib/bpf/netlink.c
@@ -289,7 +289,7 @@ int bpf_get_link_xdp_info(int ifindex, struct xdp_link_info *info,
static __u32 get_xdp_id(struct xdp_link_info *info, __u32 flags)
{
- if (info->attach_mode != XDP_ATTACHED_MULTI)
+ if (info->attach_mode != XDP_ATTACHED_MULTI && !flags)
return info->prog_id;
if (flags & XDP_FLAGS_DRV_MODE)
return info->drv_prog_id;
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4768d91c6d68..2b765bbbef92 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1011,10 +1011,7 @@ static struct rela *find_jump_table(struct objtool_file *file,
* it.
*/
for (;
- &insn->list != &file->insn_list &&
- insn->sec == func->sec &&
- insn->offset >= func->offset;
-
+ &insn->list != &file->insn_list && insn->func && insn->func->pfunc == func;
insn = insn->first_jump_src ?: list_prev_entry(insn, list)) {
if (insn != orig_insn && insn->type == INSN_JUMP_DYNAMIC)
diff --git a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
index eba9a970703b..925722217edf 100644
--- a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
+++ b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
@@ -82,6 +82,7 @@ static void get_stack_print_output(void *ctx, int cpu, void *data, __u32 size)
void test_get_stack_raw_tp(void)
{
const char *file = "./test_get_stack_rawtp.o";
+ const char *file_err = "./test_get_stack_rawtp_err.o";
const char *prog_name = "raw_tracepoint/sys_enter";
int i, err, prog_fd, exp_cnt = MAX_CNT_RAWTP;
struct perf_buffer_opts pb_opts = {};
@@ -93,6 +94,10 @@ void test_get_stack_raw_tp(void)
struct bpf_map *map;
cpu_set_t cpu_set;
+ err = bpf_prog_load(file_err, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+ if (CHECK(err >= 0, "prog_load raw tp", "err %d errno %d\n", err, errno))
+ return;
+
err = bpf_prog_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno))
return;
diff --git a/tools/testing/selftests/bpf/progs/test_get_stack_rawtp_err.c b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp_err.c
new file mode 100644
index 000000000000..8941a41c2a55
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp_err.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define MAX_STACK_RAWTP 10
+
+SEC("raw_tracepoint/sys_enter")
+int bpf_prog2(void *ctx)
+{
+ __u64 stack[MAX_STACK_RAWTP];
+ int error;
+
+ /* set all the flags which should return -EINVAL */
+ error = bpf_get_stack(ctx, stack, 0, -1);
+ if (error < 0)
+ goto loop;
+
+ return error;
+loop:
+ while (1) {
+ error++;
+ }
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/verifier/bpf_get_stack.c b/tools/testing/selftests/bpf/verifier/bpf_get_stack.c
index f24d50f09dbe..371926771db5 100644
--- a/tools/testing/selftests/bpf/verifier/bpf_get_stack.c
+++ b/tools/testing/selftests/bpf/verifier/bpf_get_stack.c
@@ -9,17 +9,17 @@
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 28),
BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_9, sizeof(struct test_val)),
+ BPF_MOV64_IMM(BPF_REG_9, sizeof(struct test_val)/2),
BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_3, sizeof(struct test_val)),
+ BPF_MOV64_IMM(BPF_REG_3, sizeof(struct test_val)/2),
BPF_MOV64_IMM(BPF_REG_4, 256),
BPF_EMIT_CALL(BPF_FUNC_get_stack),
BPF_MOV64_IMM(BPF_REG_1, 0),
BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
BPF_ALU64_IMM(BPF_LSH, BPF_REG_8, 32),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_8, 32),
- BPF_JMP_REG(BPF_JSLT, BPF_REG_1, BPF_REG_8, 16),
+ BPF_JMP_REG(BPF_JSLT, BPF_REG_8, BPF_REG_1, 16),
BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8),
BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_8),
@@ -29,7 +29,7 @@
BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_1),
BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_5, sizeof(struct test_val)),
+ BPF_MOV64_IMM(BPF_REG_5, sizeof(struct test_val)/2),
BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_5),
BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 4),
BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
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