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Message-ID: <20181020120435.GB14147@kroah.com>
Date: Sat, 20 Oct 2018 14:04:35 +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 4.9.135
diff --git a/Makefile b/Makefile
index 46135e4333e6..3678e4d19ebc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 134
+SUBLEVEL = 135
EXTRAVERSION =
NAME = Roaring Lionus
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 8447eed836ef..a3b456008201 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -8,34 +8,12 @@
UTS_MACHINE := arc
-ifeq ($(CROSS_COMPILE),)
-ifndef CONFIG_CPU_BIG_ENDIAN
-CROSS_COMPILE := arc-linux-
-else
-CROSS_COMPILE := arceb-linux-
-endif
-endif
-
KBUILD_DEFCONFIG := nsim_700_defconfig
cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7
cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs
-is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0)
-
-ifdef CONFIG_ISA_ARCOMPACT
-ifeq ($(is_700), 0)
- $(error Toolchain not configured for ARCompact builds)
-endif
-endif
-
-ifdef CONFIG_ISA_ARCV2
-ifeq ($(is_700), 1)
- $(error Toolchain not configured for ARCv2 builds)
-endif
-endif
-
ifdef CONFIG_ARC_CURR_IN_REG
# For a global register defintion, make sure it gets passed to every file
# We had a customer reported bug where some code built in kernel was NOT using
@@ -89,7 +67,7 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux
-LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
+LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index 3a2d04134da9..f59b73810630 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -166,13 +166,27 @@ _GLOBAL(tm_reclaim)
std r1, PACATMSCRATCH(r13)
ld r1, PACAR1(r13)
- /* Store the PPR in r11 and reset to decent value */
std r11, GPR11(r1) /* Temporary stash */
+ /*
+ * Move the saved user r1 to the kernel stack in case PACATMSCRATCH is
+ * clobbered by an exception once we turn on MSR_RI below.
+ */
+ ld r11, PACATMSCRATCH(r13)
+ std r11, GPR1(r1)
+
+ /*
+ * Store r13 away so we can free up the scratch SPR for the SLB fault
+ * handler (needed once we start accessing the thread_struct).
+ */
+ GET_SCRATCH0(r11)
+ std r11, GPR13(r1)
+
/* Reset MSR RI so we can take SLB faults again */
li r11, MSR_RI
mtmsrd r11, 1
+ /* Store the PPR in r11 and reset to decent value */
mfspr r11, SPRN_PPR
HMT_MEDIUM
@@ -197,11 +211,11 @@ _GLOBAL(tm_reclaim)
SAVE_GPR(8, r7) /* user r8 */
SAVE_GPR(9, r7) /* user r9 */
SAVE_GPR(10, r7) /* user r10 */
- ld r3, PACATMSCRATCH(r13) /* user r1 */
+ ld r3, GPR1(r1) /* user r1 */
ld r4, GPR7(r1) /* user r7 */
ld r5, GPR11(r1) /* user r11 */
ld r6, GPR12(r1) /* user r12 */
- GET_SCRATCH0(8) /* user r13 */
+ ld r8, GPR13(r1) /* user r13 */
std r3, GPR1(r7)
std r4, GPR7(r7)
std r5, GPR11(r7)
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 69b23b25ac34..08b9e942a262 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -113,21 +113,21 @@ static void appldata_get_os_data(void *data)
j = 0;
for_each_online_cpu(i) {
os_data->os_cpu[j].per_cpu_user =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_USER]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_USER]);
os_data->os_cpu[j].per_cpu_nice =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_NICE]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_NICE]);
os_data->os_cpu[j].per_cpu_system =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM]);
os_data->os_cpu[j].per_cpu_idle =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_IDLE]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_IDLE]);
os_data->os_cpu[j].per_cpu_irq =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_IRQ]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_IRQ]);
os_data->os_cpu[j].per_cpu_softirq =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ]);
os_data->os_cpu[j].per_cpu_iowait =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_IOWAIT]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_IOWAIT]);
os_data->os_cpu[j].per_cpu_steal =
- cputime_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_STEAL]);
+ nsecs_to_jiffies(kcpustat_cpu(i).cpustat[CPUTIME_STEAL]);
os_data->os_cpu[j].cpu_id = i;
j++;
}
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index dfdb7e21ba56..93d089c9509a 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -134,7 +134,7 @@
*/
#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
_PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY | \
- _PAGE_SOFT_DIRTY)
+ _PAGE_SOFT_DIRTY | _PAGE_DEVMAP)
#define _HPAGE_CHG_MASK (_PAGE_CHG_MASK | _PAGE_PSE)
/* The ASID is the lower 12 bits of CR3 */
diff --git a/drivers/clocksource/timer-ti-32k.c b/drivers/clocksource/timer-ti-32k.c
index cf5b14e442e4..e9ab92d0c358 100644
--- a/drivers/clocksource/timer-ti-32k.c
+++ b/drivers/clocksource/timer-ti-32k.c
@@ -98,6 +98,9 @@ static int __init ti_32k_timer_init(struct device_node *np)
return -ENXIO;
}
+ if (!of_machine_is_compatible("ti,am43"))
+ ti_32k_timer.cs.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
+
ti_32k_timer.counter = ti_32k_timer.base;
/*
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index af5eff6835a8..d6d91e8afa9e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -132,7 +132,7 @@ static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
u64 cur_wall_time;
u64 busy_time;
- cur_wall_time = jiffies64_to_cputime64(get_jiffies_64());
+ cur_wall_time = jiffies64_to_nsecs(get_jiffies_64());
busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER];
busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM];
@@ -143,9 +143,9 @@ static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
idle_time = cur_wall_time - busy_time;
if (wall)
- *wall = cputime_to_usecs(cur_wall_time);
+ *wall = div_u64(cur_wall_time, NSEC_PER_USEC);
- return cputime_to_usecs(idle_time);
+ return div_u64(idle_time, NSEC_PER_USEC);
}
u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 642dd0f183a8..38d1a8216084 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -152,7 +152,7 @@ unsigned int dbs_update(struct cpufreq_policy *policy)
if (ignore_nice) {
u64 cur_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
- idle_time += cputime_to_usecs(cur_nice - j_cdbs->prev_cpu_nice);
+ idle_time += div_u64(cur_nice - j_cdbs->prev_cpu_nice, NSEC_PER_USEC);
j_cdbs->prev_cpu_nice = cur_nice;
}
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 06d3abdffd3a..b084708fd113 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -13,7 +13,6 @@
#include <linux/cpufreq.h>
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/cputime.h>
static DEFINE_SPINLOCK(cpufreq_stats_lock);
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 9280358b8f15..59d484736b4e 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -378,6 +378,7 @@ static int malidp_bind(struct device *dev)
goto irq_init_fail;
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
+ drm_crtc_vblank_reset(&malidp->crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
goto vblank_fail;
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 2248b330c047..70597854397f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1853,6 +1853,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI) },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD) },
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 5e1fdc8d32ab..2fd0f119a67b 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -616,21 +616,22 @@ void hv_kvp_onchannelcallback(void *context)
NEGO_IN_PROGRESS,
NEGO_FINISHED} host_negotiatied = NEGO_NOT_STARTED;
- if (host_negotiatied == NEGO_NOT_STARTED &&
- kvp_transaction.state < HVUTIL_READY) {
+ if (kvp_transaction.state < HVUTIL_READY) {
/*
* If userspace daemon is not connected and host is asking
* us to negotiate we need to delay to not lose messages.
* This is important for Failover IP setting.
*/
- host_negotiatied = NEGO_IN_PROGRESS;
- schedule_delayed_work(&kvp_host_handshake_work,
+ if (host_negotiatied == NEGO_NOT_STARTED) {
+ host_negotiatied = NEGO_IN_PROGRESS;
+ schedule_delayed_work(&kvp_host_handshake_work,
HV_UTIL_NEGO_TIMEOUT * HZ);
+ }
return;
}
if (kvp_transaction.state > HVUTIL_READY)
return;
-
+recheck:
vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 4, &recvlen,
&requestid);
@@ -707,6 +708,8 @@ void hv_kvp_onchannelcallback(void *context)
VM_PKT_DATA_INBAND, 0);
host_negotiatied = NEGO_FINISHED;
+
+ goto recheck;
}
}
diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c
index f1235831283d..fdeda0b0fbd6 100644
--- a/drivers/input/keyboard/atakbd.c
+++ b/drivers/input/keyboard/atakbd.c
@@ -79,8 +79,7 @@ MODULE_LICENSE("GPL");
*/
-static unsigned char atakbd_keycode[0x72] = { /* American layout */
- [0] = KEY_GRAVE,
+static unsigned char atakbd_keycode[0x73] = { /* American layout */
[1] = KEY_ESC,
[2] = KEY_1,
[3] = KEY_2,
@@ -121,9 +120,9 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */
[38] = KEY_L,
[39] = KEY_SEMICOLON,
[40] = KEY_APOSTROPHE,
- [41] = KEY_BACKSLASH, /* FIXME, '#' */
+ [41] = KEY_GRAVE,
[42] = KEY_LEFTSHIFT,
- [43] = KEY_GRAVE, /* FIXME: '~' */
+ [43] = KEY_BACKSLASH,
[44] = KEY_Z,
[45] = KEY_X,
[46] = KEY_C,
@@ -149,45 +148,34 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */
[66] = KEY_F8,
[67] = KEY_F9,
[68] = KEY_F10,
- [69] = KEY_ESC,
- [70] = KEY_DELETE,
- [71] = KEY_KP7,
- [72] = KEY_KP8,
- [73] = KEY_KP9,
+ [71] = KEY_HOME,
+ [72] = KEY_UP,
[74] = KEY_KPMINUS,
- [75] = KEY_KP4,
- [76] = KEY_KP5,
- [77] = KEY_KP6,
+ [75] = KEY_LEFT,
+ [77] = KEY_RIGHT,
[78] = KEY_KPPLUS,
- [79] = KEY_KP1,
- [80] = KEY_KP2,
- [81] = KEY_KP3,
- [82] = KEY_KP0,
- [83] = KEY_KPDOT,
- [90] = KEY_KPLEFTPAREN,
- [91] = KEY_KPRIGHTPAREN,
- [92] = KEY_KPASTERISK, /* FIXME */
- [93] = KEY_KPASTERISK,
- [94] = KEY_KPPLUS,
- [95] = KEY_HELP,
+ [80] = KEY_DOWN,
+ [82] = KEY_INSERT,
+ [83] = KEY_DELETE,
[96] = KEY_102ND,
- [97] = KEY_KPASTERISK, /* FIXME */
- [98] = KEY_KPSLASH,
+ [97] = KEY_UNDO,
+ [98] = KEY_HELP,
[99] = KEY_KPLEFTPAREN,
[100] = KEY_KPRIGHTPAREN,
[101] = KEY_KPSLASH,
[102] = KEY_KPASTERISK,
- [103] = KEY_UP,
- [104] = KEY_KPASTERISK, /* FIXME */
- [105] = KEY_LEFT,
- [106] = KEY_RIGHT,
- [107] = KEY_KPASTERISK, /* FIXME */
- [108] = KEY_DOWN,
- [109] = KEY_KPASTERISK, /* FIXME */
- [110] = KEY_KPASTERISK, /* FIXME */
- [111] = KEY_KPASTERISK, /* FIXME */
- [112] = KEY_KPASTERISK, /* FIXME */
- [113] = KEY_KPASTERISK /* FIXME */
+ [103] = KEY_KP7,
+ [104] = KEY_KP8,
+ [105] = KEY_KP9,
+ [106] = KEY_KP4,
+ [107] = KEY_KP5,
+ [108] = KEY_KP6,
+ [109] = KEY_KP1,
+ [110] = KEY_KP2,
+ [111] = KEY_KP3,
+ [112] = KEY_KP0,
+ [113] = KEY_KPDOT,
+ [114] = KEY_KPENTER,
};
static struct input_dev *atakbd_dev;
@@ -195,21 +183,15 @@ static struct input_dev *atakbd_dev;
static void atakbd_interrupt(unsigned char scancode, char down)
{
- if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
+ if (scancode < 0x73) { /* scancodes < 0xf3 are keys */
// report raw events here?
scancode = atakbd_keycode[scancode];
- if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
- input_report_key(atakbd_dev, scancode, 1);
- input_report_key(atakbd_dev, scancode, 0);
- input_sync(atakbd_dev);
- } else {
- input_report_key(atakbd_dev, scancode, down);
- input_sync(atakbd_dev);
- }
- } else /* scancodes >= 0xf2 are mouse data, most likely */
+ input_report_key(atakbd_dev, scancode, down);
+ input_sync(atakbd_dev);
+ } else /* scancodes >= 0xf3 are mouse data, most likely */
printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
return;
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 16199b36a11e..bba1b9f2f782 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -288,7 +288,13 @@ static u16 get_alias(struct device *dev)
/* The callers make sure that get_device_id() does not fail here */
devid = get_device_id(dev);
+
+ /* For ACPI HID devices, we simply return the devid as such */
+ if (!dev_is_pci(dev))
+ return devid;
+
ivrs_alias = amd_iommu_alias_table[devid];
+
pci_for_each_dma_alias(pdev, __last_alias, &pci_alias);
if (ivrs_alias == pci_alias)
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index 25852e399ab2..c5aba26c604a 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -52,8 +52,8 @@ struct rackmeter_dma {
struct rackmeter_cpu {
struct delayed_work sniffer;
struct rackmeter *rm;
- cputime64_t prev_wall;
- cputime64_t prev_idle;
+ u64 prev_wall;
+ u64 prev_idle;
int zero;
} ____cacheline_aligned;
@@ -81,7 +81,7 @@ static int rackmeter_ignore_nice;
/* This is copied from cpufreq_ondemand, maybe we should put it in
* a common header somewhere
*/
-static inline cputime64_t get_cpu_idle_time(unsigned int cpu)
+static inline u64 get_cpu_idle_time(unsigned int cpu)
{
u64 retval;
@@ -217,23 +217,23 @@ static void rackmeter_do_timer(struct work_struct *work)
container_of(work, struct rackmeter_cpu, sniffer.work);
struct rackmeter *rm = rcpu->rm;
unsigned int cpu = smp_processor_id();
- cputime64_t cur_jiffies, total_idle_ticks;
- unsigned int total_ticks, idle_ticks;
+ u64 cur_nsecs, total_idle_nsecs;
+ u64 total_nsecs, idle_nsecs;
int i, offset, load, cumm, pause;
- cur_jiffies = jiffies64_to_cputime64(get_jiffies_64());
- total_ticks = (unsigned int) (cur_jiffies - rcpu->prev_wall);
- rcpu->prev_wall = cur_jiffies;
+ cur_nsecs = jiffies64_to_nsecs(get_jiffies_64());
+ total_nsecs = cur_nsecs - rcpu->prev_wall;
+ rcpu->prev_wall = cur_nsecs;
- total_idle_ticks = get_cpu_idle_time(cpu);
- idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle);
- idle_ticks = min(idle_ticks, total_ticks);
- rcpu->prev_idle = total_idle_ticks;
+ total_idle_nsecs = get_cpu_idle_time(cpu);
+ idle_nsecs = total_idle_nsecs - rcpu->prev_idle;
+ idle_nsecs = min(idle_nsecs, total_nsecs);
+ rcpu->prev_idle = total_idle_nsecs;
/* We do a very dumb calculation to update the LEDs for now,
* we'll do better once we have actual PWM implemented
*/
- load = (9 * (total_ticks - idle_ticks)) / total_ticks;
+ load = div64_u64(9 * (total_nsecs - idle_nsecs), total_nsecs);
offset = cpu << 3;
cumm = 0;
@@ -278,7 +278,7 @@ static void rackmeter_init_cpu_sniffer(struct rackmeter *rm)
continue;
rcpu = &rm->cpu[cpu];
rcpu->prev_idle = get_cpu_idle_time(cpu);
- rcpu->prev_wall = jiffies64_to_cputime64(get_jiffies_64());
+ rcpu->prev_wall = jiffies64_to_nsecs(get_jiffies_64());
schedule_delayed_work_on(cpu, &rm->cpu[cpu].sniffer,
msecs_to_jiffies(CPU_SAMPLING_RATE));
}
diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 8961dd732522..64be30d53847 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -406,8 +406,10 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
msg[0].addr == (state->af9033_i2c_addr[1] >> 1))
reg |= 0x100000;
- ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
- msg[0].len - 3);
+ ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
+ &msg[0].buf[3],
+ msg[0].len - 3)
+ : -EOPNOTSUPP;
} else {
/* I2C write */
u8 buf[MAX_XFER_SIZE];
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 0509996957d9..e70d6fe504b8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -240,7 +240,8 @@ static void mlx4_set_eq_affinity_hint(struct mlx4_priv *priv, int vec)
struct mlx4_dev *dev = &priv->dev;
struct mlx4_eq *eq = &priv->eq_table.eq[vec];
- if (!eq->affinity_mask || cpumask_empty(eq->affinity_mask))
+ if (!cpumask_available(eq->affinity_mask) ||
+ cpumask_empty(eq->affinity_mask))
return;
hint_err = irq_set_affinity_hint(eq->irq, eq->affinity_mask);
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index f1109661a533..410399070639 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -421,6 +421,7 @@ enum EIS_BIT {
EIS_CULF1 = 0x00000080,
EIS_TFFF = 0x00000100,
EIS_QFS = 0x00010000,
+ EIS_RESERVED = (GENMASK(31, 17) | GENMASK(15, 11)),
};
/* RIC0 */
@@ -465,6 +466,7 @@ enum RIS0_BIT {
RIS0_FRF15 = 0x00008000,
RIS0_FRF16 = 0x00010000,
RIS0_FRF17 = 0x00020000,
+ RIS0_RESERVED = GENMASK(31, 18),
};
/* RIC1 */
@@ -521,6 +523,7 @@ enum RIS2_BIT {
RIS2_QFF16 = 0x00010000,
RIS2_QFF17 = 0x00020000,
RIS2_RFFF = 0x80000000,
+ RIS2_RESERVED = GENMASK(30, 18),
};
/* TIC */
@@ -537,6 +540,7 @@ enum TIS_BIT {
TIS_FTF1 = 0x00000002, /* Undocumented? */
TIS_TFUF = 0x00000100,
TIS_TFWF = 0x00000200,
+ TIS_RESERVED = (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4))
};
/* ISS */
@@ -610,6 +614,7 @@ enum GIC_BIT {
enum GIS_BIT {
GIS_PTCF = 0x00000001, /* Undocumented? */
GIS_PTMF = 0x00000004,
+ GIS_RESERVED = GENMASK(15, 10),
};
/* GIE (R-Car Gen3 only) */
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 307ecd500dac..71836a7f56b0 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -717,10 +717,11 @@ static void ravb_error_interrupt(struct net_device *ndev)
u32 eis, ris2;
eis = ravb_read(ndev, EIS);
- ravb_write(ndev, ~EIS_QFS, EIS);
+ ravb_write(ndev, ~(EIS_QFS | EIS_RESERVED), EIS);
if (eis & EIS_QFS) {
ris2 = ravb_read(ndev, RIS2);
- ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF), RIS2);
+ ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF | RIS2_RESERVED),
+ RIS2);
/* Receive Descriptor Empty int */
if (ris2 & RIS2_QFF0)
@@ -773,7 +774,7 @@ static bool ravb_timestamp_interrupt(struct net_device *ndev)
u32 tis = ravb_read(ndev, TIS);
if (tis & TIS_TFUF) {
- ravb_write(ndev, ~TIS_TFUF, TIS);
+ ravb_write(ndev, ~(TIS_TFUF | TIS_RESERVED), TIS);
ravb_get_tx_tstamp(ndev);
return true;
}
@@ -908,7 +909,7 @@ static int ravb_poll(struct napi_struct *napi, int budget)
/* Processing RX Descriptor Ring */
if (ris0 & mask) {
/* Clear RX interrupt */
- ravb_write(ndev, ~mask, RIS0);
+ ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0);
if (ravb_rx(ndev, "a, q))
goto out;
}
@@ -916,7 +917,7 @@ static int ravb_poll(struct napi_struct *napi, int budget)
if (tis & mask) {
spin_lock_irqsave(&priv->lock, flags);
/* Clear TX interrupt */
- ravb_write(ndev, ~mask, TIS);
+ ravb_write(ndev, ~(mask | TIS_RESERVED), TIS);
ravb_tx_free(ndev, q, true);
netif_wake_subqueue(ndev, q);
mmiowb();
diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c
index eede70ec37f8..9e3222fd69f9 100644
--- a/drivers/net/ethernet/renesas/ravb_ptp.c
+++ b/drivers/net/ethernet/renesas/ravb_ptp.c
@@ -319,7 +319,7 @@ void ravb_ptp_interrupt(struct net_device *ndev)
}
}
- ravb_write(ndev, ~gis, GIS);
+ ravb_write(ndev, ~(gis | GIS_RESERVED), GIS);
}
void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev)
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 04148438d7ec..5ed28111c3c3 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -3342,11 +3342,10 @@ static int ibmvscsis_probe(struct vio_dev *vdev,
vscsi->dds.window[LOCAL].liobn,
vscsi->dds.window[REMOTE].liobn);
- strcpy(vscsi->eye, "VSCSI ");
- strncat(vscsi->eye, vdev->name, MAX_EYE);
+ snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI %s", vdev->name);
vscsi->dds.unit_id = vdev->unit_address;
- strncpy(vscsi->dds.partition_name, partition_name,
+ strscpy(vscsi->dds.partition_name, partition_name,
sizeof(vscsi->dds.partition_name));
vscsi->dds.partition_num = partition_number;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index f8b6bf56c48e..ab999c4444b8 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1158,7 +1158,8 @@ static int sd_init_command(struct scsi_cmnd *cmd)
case REQ_OP_WRITE:
return sd_setup_read_write_cmnd(cmd);
default:
- BUG();
+ WARN_ON_ONCE(1);
+ return BLKPREP_KILL;
}
}
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index e0cd1e4c8892..2f151e0aa6da 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -537,7 +537,7 @@ static void gs_rx_push(unsigned long _port)
}
/* push data to (open) tty */
- if (req->actual) {
+ if (req->actual && tty) {
char *packet = req->buf;
unsigned size = req->actual;
unsigned n;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 43e27d8ec770..567a6c7af677 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3038,9 +3038,6 @@ extern struct buffer_head *ext4_get_first_inline_block(struct inode *inode,
extern int ext4_inline_data_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo,
int *has_inline, __u64 start, __u64 len);
-extern int ext4_try_to_evict_inline_data(handle_t *handle,
- struct inode *inode,
- int needed);
extern void ext4_inline_data_truncate(struct inode *inode, int *has_inline);
extern int ext4_convert_inline_data(struct inode *inode);
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 211539a7adfc..6779a9f1de3b 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -889,11 +889,11 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping,
flags |= AOP_FLAG_NOFS;
if (ret == -ENOSPC) {
+ ext4_journal_stop(handle);
ret = ext4_da_convert_inline_data_to_extent(mapping,
inode,
flags,
fsdata);
- ext4_journal_stop(handle);
if (ret == -ENOSPC &&
ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry_journal;
@@ -1865,42 +1865,6 @@ int ext4_inline_data_fiemap(struct inode *inode,
return (error < 0 ? error : 0);
}
-/*
- * Called during xattr set, and if we can sparse space 'needed',
- * just create the extent tree evict the data to the outer block.
- *
- * We use jbd2 instead of page cache to move data to the 1st block
- * so that the whole transaction can be committed as a whole and
- * the data isn't lost because of the delayed page cache write.
- */
-int ext4_try_to_evict_inline_data(handle_t *handle,
- struct inode *inode,
- int needed)
-{
- int error;
- struct ext4_xattr_entry *entry;
- struct ext4_inode *raw_inode;
- struct ext4_iloc iloc;
-
- error = ext4_get_inode_loc(inode, &iloc);
- if (error)
- return error;
-
- raw_inode = ext4_raw_inode(&iloc);
- entry = (struct ext4_xattr_entry *)((void *)raw_inode +
- EXT4_I(inode)->i_inline_off);
- if (EXT4_XATTR_LEN(entry->e_name_len) +
- EXT4_XATTR_SIZE(le32_to_cpu(entry->e_value_size)) < needed) {
- error = -ENOSPC;
- goto out;
- }
-
- error = ext4_convert_inline_data_nolock(handle, inode, &iloc);
-out:
- brelse(iloc.bh);
- return error;
-}
-
void ext4_inline_data_truncate(struct inode *inode, int *has_inline)
{
handle_t *handle;
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 7d6da09e637b..38385bcb9148 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1086,22 +1086,8 @@ int ext4_xattr_ibody_inline_set(handle_t *handle, struct inode *inode,
if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
error = ext4_xattr_set_entry(i, s, inode);
- if (error) {
- if (error == -ENOSPC &&
- ext4_has_inline_data(inode)) {
- error = ext4_try_to_evict_inline_data(handle, inode,
- EXT4_XATTR_LEN(strlen(i->name) +
- EXT4_XATTR_SIZE(i->value_len)));
- if (error)
- return error;
- error = ext4_xattr_ibody_find(inode, i, is);
- if (error)
- return error;
- error = ext4_xattr_set_entry(i, s, inode);
- }
- if (error)
- return error;
- }
+ if (error)
+ return error;
header = IHDR(inode, ext4_raw_inode(&is->iloc));
if (!IS_LAST_ENTRY(s->first)) {
header->h_magic = cpu_to_le32(EXT4_XATTR_MAGIC);
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index d700c42b3572..44475a44cbf1 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -21,23 +21,23 @@
#ifdef arch_idle_time
-static cputime64_t get_idle_time(int cpu)
+static u64 get_idle_time(int cpu)
{
- cputime64_t idle;
+ u64 idle;
idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
if (cpu_online(cpu) && !nr_iowait_cpu(cpu))
- idle += arch_idle_time(cpu);
+ idle += cputime_to_nsecs(arch_idle_time(cpu));
return idle;
}
-static cputime64_t get_iowait_time(int cpu)
+static u64 get_iowait_time(int cpu)
{
- cputime64_t iowait;
+ u64 iowait;
iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
if (cpu_online(cpu) && nr_iowait_cpu(cpu))
- iowait += arch_idle_time(cpu);
+ iowait += cputime_to_nsecs(arch_idle_time(cpu));
return iowait;
}
@@ -45,32 +45,32 @@ static cputime64_t get_iowait_time(int cpu)
static u64 get_idle_time(int cpu)
{
- u64 idle, idle_time = -1ULL;
+ u64 idle, idle_usecs = -1ULL;
if (cpu_online(cpu))
- idle_time = get_cpu_idle_time_us(cpu, NULL);
+ idle_usecs = get_cpu_idle_time_us(cpu, NULL);
- if (idle_time == -1ULL)
+ if (idle_usecs == -1ULL)
/* !NO_HZ or cpu offline so we can rely on cpustat.idle */
idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
else
- idle = usecs_to_cputime64(idle_time);
+ idle = idle_usecs * NSEC_PER_USEC;
return idle;
}
static u64 get_iowait_time(int cpu)
{
- u64 iowait, iowait_time = -1ULL;
+ u64 iowait, iowait_usecs = -1ULL;
if (cpu_online(cpu))
- iowait_time = get_cpu_iowait_time_us(cpu, NULL);
+ iowait_usecs = get_cpu_iowait_time_us(cpu, NULL);
- if (iowait_time == -1ULL)
+ if (iowait_usecs == -1ULL)
/* !NO_HZ or cpu offline so we can rely on cpustat.iowait */
iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
else
- iowait = usecs_to_cputime64(iowait_time);
+ iowait = iowait_usecs * NSEC_PER_USEC;
return iowait;
}
@@ -115,16 +115,16 @@ static int show_stat(struct seq_file *p, void *v)
}
sum += arch_irq_stat();
- seq_put_decimal_ull(p, "cpu ", cputime64_to_clock_t(user));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(nice));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(system));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(idle));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(iowait));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(irq));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(softirq));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(steal));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(guest));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(guest_nice));
+ seq_put_decimal_ull(p, "cpu ", nsec_to_clock_t(user));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(nice));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(system));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(idle));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(iowait));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(irq));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(softirq));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(steal));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(guest));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(guest_nice));
seq_putc(p, '\n');
for_each_online_cpu(i) {
@@ -140,16 +140,16 @@ static int show_stat(struct seq_file *p, void *v)
guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
seq_printf(p, "cpu%d", i);
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(user));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(nice));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(system));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(idle));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(iowait));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(irq));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(softirq));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(steal));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(guest));
- seq_put_decimal_ull(p, " ", cputime64_to_clock_t(guest_nice));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(user));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(nice));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(system));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(idle));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(iowait));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(irq));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(softirq));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(steal));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(guest));
+ seq_put_decimal_ull(p, " ", nsec_to_clock_t(guest_nice));
seq_putc(p, '\n');
}
seq_put_decimal_ull(p, "intr ", (unsigned long long)sum);
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index 33de567c25af..7981c4ffe787 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -5,23 +5,20 @@
#include <linux/seq_file.h>
#include <linux/time.h>
#include <linux/kernel_stat.h>
-#include <linux/cputime.h>
static int uptime_proc_show(struct seq_file *m, void *v)
{
struct timespec uptime;
struct timespec idle;
- u64 idletime;
u64 nsec;
u32 rem;
int i;
- idletime = 0;
+ nsec = 0;
for_each_possible_cpu(i)
- idletime += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];
+ nsec += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];
get_monotonic_boottime(&uptime);
- nsec = cputime64_to_jiffies64(idletime) * TICK_NSEC;
idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
idle.tv_nsec = rem;
seq_printf(m, "%lu.%02lu %lu.%02lu\n",
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index e35e6de633b9..9b9f65d99873 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -22,7 +22,7 @@ extern int mincore_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
unsigned char *vec);
extern bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
unsigned long new_addr, unsigned long old_end,
- pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush);
+ pmd_t *old_pmd, pmd_t *new_pmd);
extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
unsigned long addr, pgprot_t newprot,
int prot_numa);
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index bc0b309c3f19..4c882791c10c 100644
--- a/kernel/sched/cpuacct.c
+++ b/kernel/sched/cpuacct.c
@@ -297,7 +297,7 @@ static int cpuacct_stats_show(struct seq_file *sf, void *v)
for (stat = 0; stat < CPUACCT_STAT_NSTATS; stat++) {
seq_printf(sf, "%s %lld\n",
cpuacct_stat_desc[stat],
- cputime64_to_clock_t(val[stat]));
+ nsec_to_clock_t(val[stat]));
}
return 0;
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 5ebee3164e64..448d6426fa5f 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -37,6 +37,18 @@ void disable_sched_clock_irqtime(void)
sched_clock_irqtime = 0;
}
+static void irqtime_account_delta(struct irqtime *irqtime, u64 delta,
+ enum cpu_usage_stat idx)
+{
+ u64 *cpustat = kcpustat_this_cpu->cpustat;
+
+ u64_stats_update_begin(&irqtime->sync);
+ cpustat[idx] += delta;
+ irqtime->total += delta;
+ irqtime->tick_delta += delta;
+ u64_stats_update_end(&irqtime->sync);
+}
+
/*
* Called before incrementing preempt_count on {soft,}irq_enter
* and before decrementing preempt_count on {soft,}irq_exit.
@@ -54,7 +66,6 @@ void irqtime_account_irq(struct task_struct *curr)
delta = sched_clock_cpu(cpu) - irqtime->irq_start_time;
irqtime->irq_start_time += delta;
- u64_stats_update_begin(&irqtime->sync);
/*
* We do not account for softirq time from ksoftirqd here.
* We want to continue accounting softirq time to ksoftirqd thread
@@ -62,48 +73,29 @@ void irqtime_account_irq(struct task_struct *curr)
* that do not consume any time, but still wants to run.
*/
if (hardirq_count())
- irqtime->hardirq_time += delta;
+ irqtime_account_delta(irqtime, delta, CPUTIME_IRQ);
else if (in_serving_softirq() && curr != this_cpu_ksoftirqd())
- irqtime->softirq_time += delta;
-
- u64_stats_update_end(&irqtime->sync);
+ irqtime_account_delta(irqtime, delta, CPUTIME_SOFTIRQ);
}
EXPORT_SYMBOL_GPL(irqtime_account_irq);
-static cputime_t irqtime_account_update(u64 irqtime, int idx, cputime_t maxtime)
+static cputime_t irqtime_tick_accounted(cputime_t maxtime)
{
- u64 *cpustat = kcpustat_this_cpu->cpustat;
- cputime_t irq_cputime;
-
- irq_cputime = nsecs_to_cputime64(irqtime) - cpustat[idx];
- irq_cputime = min(irq_cputime, maxtime);
- cpustat[idx] += irq_cputime;
-
- return irq_cputime;
-}
+ struct irqtime *irqtime = this_cpu_ptr(&cpu_irqtime);
+ cputime_t delta;
-static cputime_t irqtime_account_hi_update(cputime_t maxtime)
-{
- return irqtime_account_update(__this_cpu_read(cpu_irqtime.hardirq_time),
- CPUTIME_IRQ, maxtime);
-}
+ delta = nsecs_to_cputime(irqtime->tick_delta);
+ delta = min(delta, maxtime);
+ irqtime->tick_delta -= cputime_to_nsecs(delta);
-static cputime_t irqtime_account_si_update(cputime_t maxtime)
-{
- return irqtime_account_update(__this_cpu_read(cpu_irqtime.softirq_time),
- CPUTIME_SOFTIRQ, maxtime);
+ return delta;
}
#else /* CONFIG_IRQ_TIME_ACCOUNTING */
#define sched_clock_irqtime (0)
-static cputime_t irqtime_account_hi_update(cputime_t dummy)
-{
- return 0;
-}
-
-static cputime_t irqtime_account_si_update(cputime_t dummy)
+static cputime_t irqtime_tick_accounted(cputime_t dummy)
{
return 0;
}
@@ -143,7 +135,7 @@ void account_user_time(struct task_struct *p, cputime_t cputime,
index = (task_nice(p) > 0) ? CPUTIME_NICE : CPUTIME_USER;
/* Add user time to cpustat. */
- task_group_account_field(p, index, (__force u64) cputime);
+ task_group_account_field(p, index, cputime_to_nsecs(cputime));
/* Account for user time used */
acct_account_cputime(p);
@@ -168,11 +160,11 @@ static void account_guest_time(struct task_struct *p, cputime_t cputime,
/* Add guest time to cpustat. */
if (task_nice(p) > 0) {
- cpustat[CPUTIME_NICE] += (__force u64) cputime;
- cpustat[CPUTIME_GUEST_NICE] += (__force u64) cputime;
+ cpustat[CPUTIME_NICE] += cputime_to_nsecs(cputime);
+ cpustat[CPUTIME_GUEST_NICE] += cputime_to_nsecs(cputime);
} else {
- cpustat[CPUTIME_USER] += (__force u64) cputime;
- cpustat[CPUTIME_GUEST] += (__force u64) cputime;
+ cpustat[CPUTIME_USER] += cputime_to_nsecs(cputime);
+ cpustat[CPUTIME_GUEST] += cputime_to_nsecs(cputime);
}
}
@@ -193,7 +185,7 @@ void __account_system_time(struct task_struct *p, cputime_t cputime,
account_group_system_time(p, cputime);
/* Add system time to cpustat. */
- task_group_account_field(p, index, (__force u64) cputime);
+ task_group_account_field(p, index, cputime_to_nsecs(cputime));
/* Account for system time used */
acct_account_cputime(p);
@@ -234,7 +226,7 @@ void account_steal_time(cputime_t cputime)
{
u64 *cpustat = kcpustat_this_cpu->cpustat;
- cpustat[CPUTIME_STEAL] += (__force u64) cputime;
+ cpustat[CPUTIME_STEAL] += cputime_to_nsecs(cputime);
}
/*
@@ -247,9 +239,9 @@ void account_idle_time(cputime_t cputime)
struct rq *rq = this_rq();
if (atomic_read(&rq->nr_iowait) > 0)
- cpustat[CPUTIME_IOWAIT] += (__force u64) cputime;
+ cpustat[CPUTIME_IOWAIT] += cputime_to_nsecs(cputime);
else
- cpustat[CPUTIME_IDLE] += (__force u64) cputime;
+ cpustat[CPUTIME_IDLE] += cputime_to_nsecs(cputime);
}
/*
@@ -290,10 +282,7 @@ static inline cputime_t account_other_time(cputime_t max)
accounted = steal_account_process_time(max);
if (accounted < max)
- accounted += irqtime_account_hi_update(max - accounted);
-
- if (accounted < max)
- accounted += irqtime_account_si_update(max - accounted);
+ accounted += irqtime_tick_accounted(max - accounted);
return accounted;
}
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index f564a1d2c9d5..923cc35e8490 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -4,6 +4,7 @@
#include <linux/sched/rt.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
+#include <linux/kernel_stat.h>
#include <linux/binfmts.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
@@ -1742,14 +1743,19 @@ static inline void nohz_balance_exit_idle(unsigned int cpu) { }
#ifdef CONFIG_IRQ_TIME_ACCOUNTING
struct irqtime {
- u64 hardirq_time;
- u64 softirq_time;
+ u64 total;
+ u64 tick_delta;
u64 irq_start_time;
struct u64_stats_sync sync;
};
DECLARE_PER_CPU(struct irqtime, cpu_irqtime);
+/*
+ * Returns the irqtime minus the softirq time computed by ksoftirqd.
+ * Otherwise ksoftirqd's sum_exec_runtime is substracted its own runtime
+ * and never move forward.
+ */
static inline u64 irq_time_read(int cpu)
{
struct irqtime *irqtime = &per_cpu(cpu_irqtime, cpu);
@@ -1758,7 +1764,7 @@ static inline u64 irq_time_read(int cpu)
do {
seq = __u64_stats_fetch_begin(&irqtime->sync);
- total = irqtime->softirq_time + irqtime->hardirq_time;
+ total = irqtime->total;
} while (__u64_stats_fetch_retry(&irqtime->sync, seq));
return total;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index e4c6c3edaf6a..9f7bba700e4e 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1445,7 +1445,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
unsigned long new_addr, unsigned long old_end,
- pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
+ pmd_t *old_pmd, pmd_t *new_pmd)
{
spinlock_t *old_ptl, *new_ptl;
pmd_t pmd;
@@ -1476,7 +1476,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
if (new_ptl != old_ptl)
spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
pmd = pmdp_huge_get_and_clear(mm, old_addr, old_pmd);
- if (pmd_present(pmd) && pmd_dirty(pmd))
+ if (pmd_present(pmd))
force_flush = true;
VM_BUG_ON(!pmd_none(*new_pmd));
@@ -1487,12 +1487,10 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
pgtable_trans_huge_deposit(mm, new_pmd, pgtable);
}
set_pmd_at(mm, new_addr, new_pmd, pmd_mksoft_dirty(pmd));
- if (new_ptl != old_ptl)
- spin_unlock(new_ptl);
if (force_flush)
flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
- else
- *need_flush = true;
+ if (new_ptl != old_ptl)
+ spin_unlock(new_ptl);
spin_unlock(old_ptl);
return true;
}
diff --git a/mm/mremap.c b/mm/mremap.c
index 15976716dd40..9e6035969d7b 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -104,7 +104,7 @@ static pte_t move_soft_dirty_pte(pte_t pte)
static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
unsigned long old_addr, unsigned long old_end,
struct vm_area_struct *new_vma, pmd_t *new_pmd,
- unsigned long new_addr, bool need_rmap_locks, bool *need_flush)
+ unsigned long new_addr, bool need_rmap_locks)
{
struct mm_struct *mm = vma->vm_mm;
pte_t *old_pte, *new_pte, pte;
@@ -152,15 +152,17 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
pte = ptep_get_and_clear(mm, old_addr, old_pte);
/*
- * If we are remapping a dirty PTE, make sure
+ * If we are remapping a valid PTE, make sure
* to flush TLB before we drop the PTL for the
- * old PTE or we may race with page_mkclean().
+ * PTE.
*
- * This check has to be done after we removed the
- * old PTE from page tables or another thread may
- * dirty it after the check and before the removal.
+ * NOTE! Both old and new PTL matter: the old one
+ * for racing with page_mkclean(), the new one to
+ * make sure the physical page stays valid until
+ * the TLB entry for the old mapping has been
+ * flushed.
*/
- if (pte_present(pte) && pte_dirty(pte))
+ if (pte_present(pte))
force_flush = true;
pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
pte = move_soft_dirty_pte(pte);
@@ -168,13 +170,11 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
}
arch_leave_lazy_mmu_mode();
+ if (force_flush)
+ flush_tlb_range(vma, old_end - len, old_end);
if (new_ptl != old_ptl)
spin_unlock(new_ptl);
pte_unmap(new_pte - 1);
- if (force_flush)
- flush_tlb_range(vma, old_end - len, old_end);
- else
- *need_flush = true;
pte_unmap_unlock(old_pte - 1, old_ptl);
if (need_rmap_locks)
drop_rmap_locks(vma);
@@ -189,7 +189,6 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
{
unsigned long extent, next, old_end;
pmd_t *old_pmd, *new_pmd;
- bool need_flush = false;
unsigned long mmun_start; /* For mmu_notifiers */
unsigned long mmun_end; /* For mmu_notifiers */
@@ -220,8 +219,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
if (need_rmap_locks)
take_rmap_locks(vma);
moved = move_huge_pmd(vma, old_addr, new_addr,
- old_end, old_pmd, new_pmd,
- &need_flush);
+ old_end, old_pmd, new_pmd);
if (need_rmap_locks)
drop_rmap_locks(vma);
if (moved)
@@ -239,10 +237,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
if (extent > LATENCY_LIMIT)
extent = LATENCY_LIMIT;
move_ptes(vma, old_pmd, old_addr, old_addr + extent, new_vma,
- new_pmd, new_addr, need_rmap_locks, &need_flush);
+ new_pmd, new_addr, need_rmap_locks);
}
- if (need_flush)
- flush_tlb_range(vma, old_end-len, old_addr);
mmu_notifier_invalidate_range_end(vma->vm_mm, mmun_start, mmun_end);
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index ee08540ce503..5d79004de25c 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -243,6 +243,7 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
struct batadv_priv *bat_priv;
struct sk_buff *skb;
u32 elp_interval;
+ bool ret;
bat_v = container_of(work, struct batadv_hard_iface_bat_v, elp_wq.work);
hard_iface = container_of(bat_v, struct batadv_hard_iface, bat_v);
@@ -304,8 +305,11 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
* may sleep and that is not allowed in an rcu protected
* context. Therefore schedule a task for that.
*/
- queue_work(batadv_event_workqueue,
- &hardif_neigh->bat_v.metric_work);
+ ret = queue_work(batadv_event_workqueue,
+ &hardif_neigh->bat_v.metric_work);
+
+ if (!ret)
+ batadv_hardif_neigh_put(hardif_neigh);
}
rcu_read_unlock();
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 582e27698bf0..8b6f654bc85d 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1767,6 +1767,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
{
struct batadv_bla_backbone_gw *backbone_gw;
struct ethhdr *ethhdr;
+ bool ret;
ethhdr = eth_hdr(skb);
@@ -1790,8 +1791,13 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
if (unlikely(!backbone_gw))
return true;
- queue_work(batadv_event_workqueue, &backbone_gw->report_work);
- /* backbone_gw is unreferenced in the report work function function */
+ ret = queue_work(batadv_event_workqueue, &backbone_gw->report_work);
+
+ /* backbone_gw is unreferenced in the report work function function
+ * if queue_work() call was successful
+ */
+ if (!ret)
+ batadv_backbone_gw_put(backbone_gw);
return true;
}
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index e3baf697a35c..a7b5cf08d363 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -845,16 +845,27 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
spinlock_t *lock; /* Used to lock list selected by "int in_coding" */
struct list_head *list;
+ /* Select ingoing or outgoing coding node */
+ if (in_coding) {
+ lock = &orig_neigh_node->in_coding_list_lock;
+ list = &orig_neigh_node->in_coding_list;
+ } else {
+ lock = &orig_neigh_node->out_coding_list_lock;
+ list = &orig_neigh_node->out_coding_list;
+ }
+
+ spin_lock_bh(lock);
+
/* Check if nc_node is already added */
nc_node = batadv_nc_find_nc_node(orig_node, orig_neigh_node, in_coding);
/* Node found */
if (nc_node)
- return nc_node;
+ goto unlock;
nc_node = kzalloc(sizeof(*nc_node), GFP_ATOMIC);
if (!nc_node)
- return NULL;
+ goto unlock;
/* Initialize nc_node */
INIT_LIST_HEAD(&nc_node->list);
@@ -863,22 +874,14 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
kref_get(&orig_neigh_node->refcount);
nc_node->orig_node = orig_neigh_node;
- /* Select ingoing or outgoing coding node */
- if (in_coding) {
- lock = &orig_neigh_node->in_coding_list_lock;
- list = &orig_neigh_node->in_coding_list;
- } else {
- lock = &orig_neigh_node->out_coding_list_lock;
- list = &orig_neigh_node->out_coding_list;
- }
-
batadv_dbg(BATADV_DBG_NC, bat_priv, "Adding nc_node %pM -> %pM\n",
nc_node->addr, nc_node->orig_node->orig);
/* Add nc_node to orig_node */
- spin_lock_bh(lock);
kref_get(&nc_node->refcount);
list_add_tail_rcu(&nc_node->list, list);
+
+unlock:
spin_unlock_bh(lock);
return nc_node;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 84c1b388d9ed..05bc176decf0 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -565,15 +565,20 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
struct batadv_softif_vlan *vlan;
int err;
+ spin_lock_bh(&bat_priv->softif_vlan_list_lock);
+
vlan = batadv_softif_vlan_get(bat_priv, vid);
if (vlan) {
batadv_softif_vlan_put(vlan);
+ spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
return -EEXIST;
}
vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
- if (!vlan)
+ if (!vlan) {
+ spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
return -ENOMEM;
+ }
vlan->bat_priv = bat_priv;
vlan->vid = vid;
@@ -581,17 +586,23 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
atomic_set(&vlan->ap_isolation, 0);
+ kref_get(&vlan->refcount);
+ hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
+ spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
+
+ /* batadv_sysfs_add_vlan cannot be in the spinlock section due to the
+ * sleeping behavior of the sysfs functions and the fs_reclaim lock
+ */
err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
if (err) {
- kfree(vlan);
+ /* ref for the function */
+ batadv_softif_vlan_put(vlan);
+
+ /* ref for the list */
+ batadv_softif_vlan_put(vlan);
return err;
}
- spin_lock_bh(&bat_priv->softif_vlan_list_lock);
- kref_get(&vlan->refcount);
- hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
- spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
-
/* add a new TT local entry. This one will be marked with the NOPURGE
* flag
*/
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 02d96f224c60..31d7e239a1fd 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -187,7 +187,8 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
\
return __batadv_store_uint_attr(buff, count, _min, _max, \
_post_func, attr, \
- &bat_priv->_var, net_dev); \
+ &bat_priv->_var, net_dev, \
+ NULL); \
}
#define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \
@@ -261,7 +262,9 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
\
length = __batadv_store_uint_attr(buff, count, _min, _max, \
_post_func, attr, \
- &hard_iface->_var, net_dev); \
+ &hard_iface->_var, \
+ hard_iface->soft_iface, \
+ net_dev); \
\
batadv_hardif_put(hard_iface); \
return length; \
@@ -355,10 +358,12 @@ __batadv_store_bool_attr(char *buff, size_t count,
static int batadv_store_uint_attr(const char *buff, size_t count,
struct net_device *net_dev,
+ struct net_device *slave_dev,
const char *attr_name,
unsigned int min, unsigned int max,
atomic_t *attr)
{
+ char ifname[IFNAMSIZ + 3] = "";
unsigned long uint_val;
int ret;
@@ -384,8 +389,11 @@ static int batadv_store_uint_attr(const char *buff, size_t count,
if (atomic_read(attr) == uint_val)
return count;
- batadv_info(net_dev, "%s: Changing from: %i to: %lu\n",
- attr_name, atomic_read(attr), uint_val);
+ if (slave_dev)
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
+
+ batadv_info(net_dev, "%s: %sChanging from: %i to: %lu\n",
+ attr_name, ifname, atomic_read(attr), uint_val);
atomic_set(attr, uint_val);
return count;
@@ -396,12 +404,13 @@ static ssize_t __batadv_store_uint_attr(const char *buff, size_t count,
void (*post_func)(struct net_device *),
const struct attribute *attr,
atomic_t *attr_store,
- struct net_device *net_dev)
+ struct net_device *net_dev,
+ struct net_device *slave_dev)
{
int ret;
- ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max,
- attr_store);
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
+ attr->name, min, max, attr_store);
if (post_func && ret)
post_func(net_dev);
@@ -570,7 +579,7 @@ static ssize_t batadv_store_gw_sel_class(struct kobject *kobj,
return __batadv_store_uint_attr(buff, count, 1, BATADV_TQ_MAX_VALUE,
batadv_post_gw_reselect, attr,
&bat_priv->gw.sel_class,
- bat_priv->soft_iface);
+ bat_priv->soft_iface, NULL);
}
static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
@@ -1084,8 +1093,9 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
if (old_tp_override == tp_override)
goto out;
- batadv_info(net_dev, "%s: Changing from: %u.%u MBit to: %u.%u MBit\n",
- "throughput_override",
+ batadv_info(hard_iface->soft_iface,
+ "%s: %s: Changing from: %u.%u MBit to: %u.%u MBit\n",
+ "throughput_override", net_dev->name,
old_tp_override / 10, old_tp_override % 10,
tp_override / 10, tp_override % 10);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 0dc85eb1cb7a..b9f9a310eb78 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1550,6 +1550,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
{
struct batadv_tt_orig_list_entry *orig_entry;
+ spin_lock_bh(&tt_global->list_lock);
+
orig_entry = batadv_tt_global_orig_entry_find(tt_global, orig_node);
if (orig_entry) {
/* refresh the ttvn: the current value could be a bogus one that
@@ -1570,16 +1572,16 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
orig_entry->ttvn = ttvn;
kref_init(&orig_entry->refcount);
- spin_lock_bh(&tt_global->list_lock);
kref_get(&orig_entry->refcount);
hlist_add_head_rcu(&orig_entry->list,
&tt_global->orig_list);
- spin_unlock_bh(&tt_global->list_lock);
atomic_inc(&tt_global->orig_list_count);
out:
if (orig_entry)
batadv_tt_orig_list_entry_put(orig_entry);
+
+ spin_unlock_bh(&tt_global->list_lock);
}
/**
diff --git a/net/batman-adv/tvlv.c b/net/batman-adv/tvlv.c
index 77654f055f24..8e91a26e9b00 100644
--- a/net/batman-adv/tvlv.c
+++ b/net/batman-adv/tvlv.c
@@ -528,15 +528,20 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
{
struct batadv_tvlv_handler *tvlv_handler;
+ spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
+
tvlv_handler = batadv_tvlv_handler_get(bat_priv, type, version);
if (tvlv_handler) {
+ spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
batadv_tvlv_handler_put(tvlv_handler);
return;
}
tvlv_handler = kzalloc(sizeof(*tvlv_handler), GFP_ATOMIC);
- if (!tvlv_handler)
+ if (!tvlv_handler) {
+ spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
return;
+ }
tvlv_handler->ogm_handler = optr;
tvlv_handler->unicast_handler = uptr;
@@ -546,7 +551,6 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
kref_init(&tvlv_handler->refcount);
INIT_HLIST_NODE(&tvlv_handler->list);
- spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
kref_get(&tvlv_handler->refcount);
hlist_add_head_rcu(&tvlv_handler->list, &bat_priv->tvlv.handler_list);
spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 624d6e4dcd5c..51b0d832bd07 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -421,7 +421,7 @@ nf_nat_setup_info(struct nf_conn *ct,
else
ct->status |= IPS_DST_NAT;
- if (nfct_help(ct))
+ if (nfct_help(ct) && !nfct_seqadj(ct))
if (!nfct_seqadj_ext_add(ct))
return NF_DROP;
}
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