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Date: Thu, 3 Mar 2016 15:33:35 -0800
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 3.14.63
diff --git a/Makefile b/Makefile
index b738f644c71e..0843ef4cc0a4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 14
-SUBLEVEL = 62
+SUBLEVEL = 63
EXTRAVERSION =
NAME = Remembering Coco
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index e550b117ec4f..2d6a36ea8aaf 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -986,42 +986,13 @@ int arc_unwind(struct unwind_frame_info *frame)
(const u8 *)(fde +
1) +
*fde, ptrType);
- if (pc >= endLoc)
+ if (pc >= endLoc) {
fde = NULL;
- } else
- fde = NULL;
- }
- if (fde == NULL) {
- for (fde = table->address, tableSize = table->size;
- cie = NULL, tableSize > sizeof(*fde)
- && tableSize - sizeof(*fde) >= *fde;
- tableSize -= sizeof(*fde) + *fde,
- fde += 1 + *fde / sizeof(*fde)) {
- cie = cie_for_fde(fde, table);
- if (cie == &bad_cie) {
cie = NULL;
- break;
}
- if (cie == NULL
- || cie == ¬_fde
- || (ptrType = fde_pointer_type(cie)) < 0)
- continue;
- ptr = (const u8 *)(fde + 2);
- startLoc = read_pointer(&ptr,
- (const u8 *)(fde + 1) +
- *fde, ptrType);
- if (!startLoc)
- continue;
- if (!(ptrType & DW_EH_PE_indirect))
- ptrType &=
- DW_EH_PE_FORM | DW_EH_PE_signed;
- endLoc =
- startLoc + read_pointer(&ptr,
- (const u8 *)(fde +
- 1) +
- *fde, ptrType);
- if (pc >= startLoc && pc < endLoc)
- break;
+ } else {
+ fde = NULL;
+ cie = NULL;
}
}
}
diff --git a/arch/arm/boot/dts/wm8650.dtsi b/arch/arm/boot/dts/wm8650.dtsi
index 7525982262ac..2897c1ac47d8 100644
--- a/arch/arm/boot/dts/wm8650.dtsi
+++ b/arch/arm/boot/dts/wm8650.dtsi
@@ -187,6 +187,15 @@
interrupts = <43>;
};
+ sdhc@...0a000 {
+ compatible = "wm,wm8505-sdhc";
+ reg = <0xd800a000 0x400>;
+ interrupts = <20>, <21>;
+ clocks = <&clksdhc>;
+ bus-width = <4>;
+ sdon-inverted;
+ };
+
fb: fb@...50800 {
compatible = "wm,wm8505-fb";
reg = <0xd8050800 0x200>;
diff --git a/arch/mips/kvm/kvm_locore.S b/arch/mips/kvm/kvm_locore.S
index 03a2db58b22d..ba5ce99c021d 100644
--- a/arch/mips/kvm/kvm_locore.S
+++ b/arch/mips/kvm/kvm_locore.S
@@ -159,9 +159,11 @@ FEXPORT(__kvm_mips_vcpu_run)
FEXPORT(__kvm_mips_load_asid)
/* Set the ASID for the Guest Kernel */
- INT_SLL t0, t0, 1 /* with kseg0 @ 0x40000000, kernel */
- /* addresses shift to 0x80000000 */
- bltz t0, 1f /* If kernel */
+ PTR_L t0, VCPU_COP0(k1)
+ LONG_L t0, COP0_STATUS(t0)
+ andi t0, KSU_USER | ST0_ERL | ST0_EXL
+ xori t0, KSU_USER
+ bnez t0, 1f /* If kernel */
INT_ADDIU t1, k1, VCPU_GUEST_KERNEL_ASID /* (BD) */
INT_ADDIU t1, k1, VCPU_GUEST_USER_ASID /* else user */
1:
@@ -438,9 +440,11 @@ __kvm_mips_return_to_guest:
mtc0 t0, CP0_EPC
/* Set the ASID for the Guest Kernel */
- INT_SLL t0, t0, 1 /* with kseg0 @ 0x40000000, kernel */
- /* addresses shift to 0x80000000 */
- bltz t0, 1f /* If kernel */
+ PTR_L t0, VCPU_COP0(k1)
+ LONG_L t0, COP0_STATUS(t0)
+ andi t0, KSU_USER | ST0_ERL | ST0_EXL
+ xori t0, KSU_USER
+ bnez t0, 1f /* If kernel */
INT_ADDIU t1, k1, VCPU_GUEST_KERNEL_ASID /* (BD) */
INT_ADDIU t1, k1, VCPU_GUEST_USER_ASID /* else user */
1:
diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
index 897c605263f2..12d850b68763 100644
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -313,7 +313,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
if (!gebase) {
err = -ENOMEM;
- goto out_free_cpu;
+ goto out_uninit_cpu;
}
kvm_info("Allocated %d bytes for KVM Exception Handlers @ %p\n",
ALIGN(size, PAGE_SIZE), gebase);
@@ -373,6 +373,9 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
out_free_gebase:
kfree(gebase);
+out_uninit_cpu:
+ kvm_vcpu_uninit(vcpu);
+
out_free_cpu:
kfree(vcpu);
diff --git a/arch/mips/kvm/kvm_mips_emul.c b/arch/mips/kvm/kvm_mips_emul.c
index c76f297b7149..33085819cd89 100644
--- a/arch/mips/kvm/kvm_mips_emul.c
+++ b/arch/mips/kvm/kvm_mips_emul.c
@@ -935,7 +935,7 @@ kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, uint32_t cause,
base = (inst >> 21) & 0x1f;
op_inst = (inst >> 16) & 0x1f;
- offset = inst & 0xffff;
+ offset = (int16_t)inst;
cache = (inst >> 16) & 0x3;
op = (inst >> 18) & 0x7;
diff --git a/arch/s390/mm/extable.c b/arch/s390/mm/extable.c
index 4d1ee88864e8..18c8b819b0aa 100644
--- a/arch/s390/mm/extable.c
+++ b/arch/s390/mm/extable.c
@@ -52,12 +52,16 @@ void sort_extable(struct exception_table_entry *start,
int i;
/* Normalize entries to being relative to the start of the section */
- for (p = start, i = 0; p < finish; p++, i += 8)
+ for (p = start, i = 0; p < finish; p++, i += 8) {
p->insn += i;
+ p->fixup += i + 4;
+ }
sort(start, finish - start, sizeof(*start), cmp_ex, NULL);
/* Denormalize all entries */
- for (p = start, i = 0; p < finish; p++, i += 8)
+ for (p = start, i = 0; p < finish; p++, i += 8) {
p->insn -= i;
+ p->fixup -= i + 4;
+ }
}
#ifdef CONFIG_MODULES
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 25db14a33d03..47ae8d757773 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -412,7 +412,7 @@ out:
SYSCALL_DEFINE1(sparc64_personality, unsigned long, personality)
{
- int ret;
+ long ret;
if (personality(current->personality) == PER_LINUX32 &&
personality(personality) == PER_LINUX)
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 337518c5042a..b412c62486f0 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -95,6 +95,8 @@ static int start_ptraced_child(void)
{
int pid, n, status;
+ fflush(stdout);
+
pid = fork();
if (pid == 0)
ptrace_child();
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index ae7d543f23ed..8894f5bc4620 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -248,12 +248,19 @@ static efi_status_t __init phys_efi_set_virtual_address_map(
efi_memory_desc_t *virtual_map)
{
efi_status_t status;
+ unsigned long flags;
efi_call_phys_prelog();
+
+ /* Disable interrupts around EFI calls: */
+ local_irq_save(flags);
status = efi_call_phys4(efi_phys.set_virtual_address_map,
memory_map_size, descriptor_size,
descriptor_version, virtual_map);
+ local_irq_restore(flags);
+
efi_call_phys_epilog();
+
return status;
}
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 9ee3491e31fb..be4e7eb41674 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -33,11 +33,10 @@
/*
* To make EFI call EFI runtime service in physical addressing mode we need
- * prelog/epilog before/after the invocation to disable interrupt, to
- * claim EFI runtime service handler exclusively and to duplicate a memory in
- * low memory space say 0 - 3G.
+ * prolog/epilog before/after the invocation to claim the EFI runtime service
+ * handler exclusively and to duplicate a memory mapping in low memory space,
+ * say 0 - 3G.
*/
-static unsigned long efi_rt_eflags;
void efi_sync_low_kernel_mappings(void) {}
void __init efi_dump_pagetable(void) {}
@@ -59,8 +58,6 @@ void efi_call_phys_prelog(void)
{
struct desc_ptr gdt_descr;
- local_irq_save(efi_rt_eflags);
-
load_cr3(initial_page_table);
__flush_tlb_all();
@@ -79,8 +76,6 @@ void efi_call_phys_epilog(void)
load_cr3(swapper_pg_dir);
__flush_tlb_all();
-
- local_irq_restore(efi_rt_eflags);
}
void __init efi_runtime_mkexec(void)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 666b74a09092..b1be0425c686 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -41,7 +41,6 @@
#include <asm/realmode.h>
static pgd_t *save_pgd __initdata;
-static unsigned long efi_flags __initdata;
/*
* We allocate runtime services regions bottom-up, starting from -4G, i.e.
@@ -87,7 +86,6 @@ void __init efi_call_phys_prelog(void)
return;
early_code_mapping_set_exec(1);
- local_irq_save(efi_flags);
n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
save_pgd = kmalloc(n_pgds * sizeof(pgd_t), GFP_KERNEL);
@@ -115,7 +113,6 @@ void __init efi_call_phys_epilog(void)
set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
kfree(save_pgd);
__flush_tlb_all();
- local_irq_restore(efi_flags);
early_code_mapping_set_exec(0);
}
diff --git a/block/partitions/mac.c b/block/partitions/mac.c
index 76d8ba6379a9..bd5b91465230 100644
--- a/block/partitions/mac.c
+++ b/block/partitions/mac.c
@@ -32,7 +32,7 @@ int mac_partition(struct parsed_partitions *state)
Sector sect;
unsigned char *data;
int slot, blocks_in_map;
- unsigned secsize;
+ unsigned secsize, datasize, partoffset;
#ifdef CONFIG_PPC_PMAC
int found_root = 0;
int found_root_goodness = 0;
@@ -50,10 +50,14 @@ int mac_partition(struct parsed_partitions *state)
}
secsize = be16_to_cpu(md->block_size);
put_dev_sector(sect);
- data = read_part_sector(state, secsize/512, §);
+ datasize = round_down(secsize, 512);
+ data = read_part_sector(state, datasize / 512, §);
if (!data)
return -1;
- part = (struct mac_partition *) (data + secsize%512);
+ partoffset = secsize % 512;
+ if (partoffset + sizeof(*part) > datasize)
+ return -1;
+ part = (struct mac_partition *) (data + partoffset);
if (be16_to_cpu(part->signature) != MAC_PARTITION_MAGIC) {
put_dev_sector(sect);
return 0; /* not a MacOS disk */
diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index f8c0b8dbeb75..88bc8e6b2a54 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -53,7 +53,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
struct dmaengine_unmap_data *unmap = NULL;
if (device)
- unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOWAIT);
if (unmap && is_dma_copy_aligned(device, src_offset, dest_offset, len)) {
unsigned long dma_prep_flags = 0;
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index d05327caf69d..7eb264e65267 100644
--- a/crypto/async_tx/async_pq.c
+++ b/crypto/async_tx/async_pq.c
@@ -176,7 +176,7 @@ async_gen_syndrome(struct page **blocks, unsigned int offset, int disks,
BUG_ON(disks > 255 || !(P(blocks, disks) || Q(blocks, disks)));
if (device)
- unmap = dmaengine_get_unmap_data(device->dev, disks, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(device->dev, disks, GFP_NOWAIT);
if (unmap &&
(src_cnt <= dma_maxpq(device, 0) ||
@@ -294,7 +294,7 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks,
BUG_ON(disks < 4);
if (device)
- unmap = dmaengine_get_unmap_data(device->dev, disks, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(device->dev, disks, GFP_NOWAIT);
if (unmap && disks <= dma_maxpq(device, 0) &&
is_dma_pq_aligned(device, offset, 0, len)) {
diff --git a/crypto/async_tx/async_raid6_recov.c b/crypto/async_tx/async_raid6_recov.c
index 934a84981495..8fab6275ea1f 100644
--- a/crypto/async_tx/async_raid6_recov.c
+++ b/crypto/async_tx/async_raid6_recov.c
@@ -41,7 +41,7 @@ async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef,
u8 *a, *b, *c;
if (dma)
- unmap = dmaengine_get_unmap_data(dma->dev, 3, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(dma->dev, 3, GFP_NOWAIT);
if (unmap) {
struct device *dev = dma->dev;
@@ -105,7 +105,7 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len,
u8 *d, *s;
if (dma)
- unmap = dmaengine_get_unmap_data(dma->dev, 3, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(dma->dev, 3, GFP_NOWAIT);
if (unmap) {
dma_addr_t dma_dest[2];
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index e1bce26cd4f9..da75777f2b3f 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -182,7 +182,7 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset,
BUG_ON(src_cnt <= 1);
if (device)
- unmap = dmaengine_get_unmap_data(device->dev, src_cnt+1, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(device->dev, src_cnt+1, GFP_NOWAIT);
if (unmap && is_dma_xor_aligned(device, offset, 0, len)) {
struct dma_async_tx_descriptor *tx;
@@ -278,7 +278,7 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
BUG_ON(src_cnt <= 1);
if (device)
- unmap = dmaengine_get_unmap_data(device->dev, src_cnt, GFP_NOIO);
+ unmap = dmaengine_get_unmap_data(device->dev, src_cnt, GFP_NOWAIT);
if (unmap && src_cnt <= device->max_xor &&
is_dma_xor_aligned(device, offset, 0, len)) {
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 136803c47cdb..96e5ed188636 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -997,12 +997,9 @@ static inline int ata_hsm_ok_in_wq(struct ata_port *ap,
static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
{
struct ata_port *ap = qc->ap;
- unsigned long flags;
if (ap->ops->error_handler) {
if (in_wq) {
- spin_lock_irqsave(ap->lock, flags);
-
/* EH might have kicked in while host lock is
* released.
*/
@@ -1014,8 +1011,6 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
} else
ata_port_freeze(ap);
}
-
- spin_unlock_irqrestore(ap->lock, flags);
} else {
if (likely(!(qc->err_mask & AC_ERR_HSM)))
ata_qc_complete(qc);
@@ -1024,10 +1019,8 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
}
} else {
if (in_wq) {
- spin_lock_irqsave(ap->lock, flags);
ata_sff_irq_on(ap);
ata_qc_complete(qc);
- spin_unlock_irqrestore(ap->lock, flags);
} else
ata_qc_complete(qc);
}
@@ -1048,9 +1041,10 @@ int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
{
struct ata_link *link = qc->dev->link;
struct ata_eh_info *ehi = &link->eh_info;
- unsigned long flags = 0;
int poll_next;
+ lockdep_assert_held(ap->lock);
+
WARN_ON_ONCE((qc->flags & ATA_QCFLAG_ACTIVE) == 0);
/* Make sure ata_sff_qc_issue() does not throw things
@@ -1112,14 +1106,6 @@ fsm_start:
}
}
- /* Send the CDB (atapi) or the first data block (ata pio out).
- * During the state transition, interrupt handler shouldn't
- * be invoked before the data transfer is complete and
- * hsm_task_state is changed. Hence, the following locking.
- */
- if (in_wq)
- spin_lock_irqsave(ap->lock, flags);
-
if (qc->tf.protocol == ATA_PROT_PIO) {
/* PIO data out protocol.
* send first data block.
@@ -1135,9 +1121,6 @@ fsm_start:
/* send CDB */
atapi_send_cdb(ap, qc);
- if (in_wq)
- spin_unlock_irqrestore(ap->lock, flags);
-
/* if polling, ata_sff_pio_task() handles the rest.
* otherwise, interrupt handler takes over from here.
*/
@@ -1361,12 +1344,14 @@ static void ata_sff_pio_task(struct work_struct *work)
u8 status;
int poll_next;
+ spin_lock_irq(ap->lock);
+
BUG_ON(ap->sff_pio_task_link == NULL);
/* qc can be NULL if timeout occurred */
qc = ata_qc_from_tag(ap, link->active_tag);
if (!qc) {
ap->sff_pio_task_link = NULL;
- return;
+ goto out_unlock;
}
fsm_start:
@@ -1381,11 +1366,14 @@ fsm_start:
*/
status = ata_sff_busy_wait(ap, ATA_BUSY, 5);
if (status & ATA_BUSY) {
+ spin_unlock_irq(ap->lock);
ata_msleep(ap, 2);
+ spin_lock_irq(ap->lock);
+
status = ata_sff_busy_wait(ap, ATA_BUSY, 10);
if (status & ATA_BUSY) {
ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE);
- return;
+ goto out_unlock;
}
}
@@ -1402,6 +1390,8 @@ fsm_start:
*/
if (poll_next)
goto fsm_start;
+out_unlock:
+ spin_unlock_irq(ap->lock);
}
/**
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index b7695e804635..fa94fba8fa21 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -631,6 +631,9 @@ static void sil_dev_config(struct ata_device *dev)
unsigned int n, quirks = 0;
unsigned char model_num[ATA_ID_PROD_LEN + 1];
+ /* This controller doesn't support trim */
+ dev->horkage |= ATA_HORKAGE_NOTRIM;
+
ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
for (n = 0; sil_blacklist[n].product; n++)
diff --git a/drivers/clocksource/vt8500_timer.c b/drivers/clocksource/vt8500_timer.c
index 1098ed3b9b89..dc45ddb36117 100644
--- a/drivers/clocksource/vt8500_timer.c
+++ b/drivers/clocksource/vt8500_timer.c
@@ -50,6 +50,8 @@
#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+#define MIN_OSCR_DELTA 16
+
static void __iomem *regbase;
static cycle_t vt8500_timer_read(struct clocksource *cs)
@@ -80,7 +82,7 @@ static int vt8500_timer_set_next_event(unsigned long cycles,
cpu_relax();
writel((unsigned long)alarm, regbase + TIMER_MATCH_VAL);
- if ((signed)(alarm - clocksource.read(&clocksource)) <= 16)
+ if ((signed)(alarm - clocksource.read(&clocksource)) <= MIN_OSCR_DELTA)
return -ETIME;
writel(1, regbase + TIMER_IER_VAL);
@@ -160,7 +162,7 @@ static void __init vt8500_timer_init(struct device_node *np)
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
clockevents_config_and_register(&clockevent, VT8500_TIMER_HZ,
- 4, 0xf0000000);
+ MIN_OSCR_DELTA * 2, 0xf0000000);
}
CLOCKSOURCE_OF_DECLARE(vt8500, "via,vt8500-timer", vt8500_timer_init);
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 3ae48ee2f488..df79cb0bf04e 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -176,7 +176,7 @@ static void dwc_initialize(struct dw_dma_chan *dwc)
/*----------------------------------------------------------------------*/
-static inline unsigned int dwc_fast_fls(unsigned long long v)
+static inline unsigned int dwc_fast_ffs(unsigned long long v)
{
/*
* We can be a lot more clever here, but this should take care
@@ -720,7 +720,7 @@ dwc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
dw->data_width[dwc->dst_master]);
src_width = dst_width = min_t(unsigned int, data_width,
- dwc_fast_fls(src | dest | len));
+ dwc_fast_ffs(src | dest | len));
ctllo = DWC_DEFAULT_CTLLO(chan)
| DWC_CTLL_DST_WIDTH(dst_width)
@@ -799,7 +799,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
switch (direction) {
case DMA_MEM_TO_DEV:
- reg_width = __fls(sconfig->dst_addr_width);
+ reg_width = __ffs(sconfig->dst_addr_width);
reg = sconfig->dst_addr;
ctllo = (DWC_DEFAULT_CTLLO(chan)
| DWC_CTLL_DST_WIDTH(reg_width)
@@ -819,7 +819,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
len = sg_dma_len(sg);
mem_width = min_t(unsigned int,
- data_width, dwc_fast_fls(mem | len));
+ data_width, dwc_fast_ffs(mem | len));
slave_sg_todev_fill_desc:
desc = dwc_desc_get(dwc);
@@ -859,7 +859,7 @@ slave_sg_todev_fill_desc:
}
break;
case DMA_DEV_TO_MEM:
- reg_width = __fls(sconfig->src_addr_width);
+ reg_width = __ffs(sconfig->src_addr_width);
reg = sconfig->src_addr;
ctllo = (DWC_DEFAULT_CTLLO(chan)
| DWC_CTLL_SRC_WIDTH(reg_width)
@@ -879,7 +879,7 @@ slave_sg_todev_fill_desc:
len = sg_dma_len(sg);
mem_width = min_t(unsigned int,
- data_width, dwc_fast_fls(mem | len));
+ data_width, dwc_fast_ffs(mem | len));
slave_sg_fromdev_fill_desc:
desc = dwc_desc_get(dwc);
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index 592af5f0cf39..53587377e672 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -435,16 +435,13 @@ void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev,
*/
void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev)
{
- int status;
-
if (!edac_dev->edac_check)
return;
- status = cancel_delayed_work(&edac_dev->work);
- if (status == 0) {
- /* workq instance might be running, wait for it */
- flush_workqueue(edac_workqueue);
- }
+ edac_dev->op_state = OP_OFFLINE;
+
+ cancel_delayed_work_sync(&edac_dev->work);
+ flush_workqueue(edac_workqueue);
}
/*
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 33edd6766344..19dc0bc9b136 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -584,18 +584,10 @@ static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec,
*/
static void edac_mc_workq_teardown(struct mem_ctl_info *mci)
{
- int status;
-
- if (mci->op_state != OP_RUNNING_POLL)
- return;
-
- status = cancel_delayed_work(&mci->work);
- if (status == 0) {
- edac_dbg(0, "not canceled, flush the queue\n");
+ mci->op_state = OP_OFFLINE;
- /* workq instance might be running, wait for it */
- flush_workqueue(edac_workqueue);
- }
+ cancel_delayed_work_sync(&mci->work);
+ flush_workqueue(edac_workqueue);
}
/*
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index 2cf44b4db80c..b4b38603b804 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -274,13 +274,12 @@ static void edac_pci_workq_setup(struct edac_pci_ctl_info *pci,
*/
static void edac_pci_workq_teardown(struct edac_pci_ctl_info *pci)
{
- int status;
-
edac_dbg(0, "\n");
- status = cancel_delayed_work(&pci->work);
- if (status == 0)
- flush_workqueue(edac_workqueue);
+ pci->op_state = OP_OFFLINE;
+
+ cancel_delayed_work_sync(&pci->work);
+ flush_workqueue(edac_workqueue);
}
/*
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 9833a1b1acc1..3fc122306f1f 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -296,6 +296,7 @@ int ast_framebuffer_init(struct drm_device *dev,
int ast_fbdev_init(struct drm_device *dev);
void ast_fbdev_fini(struct drm_device *dev);
void ast_fbdev_set_suspend(struct drm_device *dev, int state);
+void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr);
struct ast_bo {
struct ttm_buffer_object bo;
diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c
index a28640f47c27..b55b6b1c9fe2 100644
--- a/drivers/gpu/drm/ast/ast_fb.c
+++ b/drivers/gpu/drm/ast/ast_fb.c
@@ -367,3 +367,10 @@ void ast_fbdev_set_suspend(struct drm_device *dev, int state)
fb_set_suspend(ast->fbdev->helper.fbdev, state);
}
+
+void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr)
+{
+ ast->fbdev->helper.fbdev->fix.smem_start =
+ ast->fbdev->helper.fbdev->apertures->ranges[0].base + gpu_addr;
+ ast->fbdev->helper.fbdev->fix.smem_len = ast->vram_size - gpu_addr;
+}
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index d830b38e54f6..c0f284230a39 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -312,6 +312,7 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
dev->mode_config.min_height = 0;
dev->mode_config.preferred_depth = 24;
dev->mode_config.prefer_shadow = 1;
+ dev->mode_config.fb_base = pci_resource_start(ast->dev->pdev, 0);
if (ast->chip == AST2100 ||
ast->chip == AST2200 ||
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index d2e56e95d886..cea916fa164b 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -509,6 +509,8 @@ static int ast_crtc_do_set_base(struct drm_crtc *crtc,
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (ret)
DRM_ERROR("failed to kmap fbcon\n");
+ else
+ ast_fbdev_set_base(ast, gpu_addr);
}
ast_bo_unreserve(bo);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 958b26dcac8a..0a9d1fd32994 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8821,11 +8821,21 @@ connected_sink_compute_bpp(struct intel_connector * connector,
pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
}
- /* Clamp bpp to 8 on screens without EDID 1.4 */
- if (connector->base.display_info.bpc == 0 && bpp > 24) {
- DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
- bpp);
- pipe_config->pipe_bpp = 24;
+ /* Clamp bpp to default limit on screens without EDID 1.4 */
+ if (connector->base.display_info.bpc == 0) {
+ int type = connector->base.connector_type;
+ int clamp_bpp = 24;
+
+ /* Fall back to 18 bpp when DP sink capability is unknown. */
+ if (type == DRM_MODE_CONNECTOR_DisplayPort ||
+ type == DRM_MODE_CONNECTOR_eDP)
+ clamp_bpp = 18;
+
+ if (bpp > clamp_bpp) {
+ DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of %d\n",
+ bpp, clamp_bpp);
+ pipe_config->pipe_bpp = clamp_bpp;
+ }
}
}
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 56a13a915155..0928c5e2bafd 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -168,7 +168,8 @@ static int qxl_process_single_command(struct qxl_device *qdev,
cmd->command_size))
return -EFAULT;
- reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL);
+ reloc_info = kmalloc_array(cmd->relocs_num,
+ sizeof(struct qxl_reloc_info), GFP_KERNEL);
if (!reloc_info)
return -ENOMEM;
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 2fa3cf615a67..6a3b5f92219f 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -436,7 +436,9 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
}
/* Fujitsu D3003-S2 board lists DVI-I as DVI-D and VGA */
- if (((dev->pdev->device == 0x9802) || (dev->pdev->device == 0x9806)) &&
+ if (((dev->pdev->device == 0x9802) ||
+ (dev->pdev->device == 0x9805) ||
+ (dev->pdev->device == 0x9806)) &&
(dev->pdev->subsystem_vendor == 0x1734) &&
(dev->pdev->subsystem_device == 0x11bd)) {
if (*connector_type == DRM_MODE_CONNECTOR_VGA) {
@@ -447,14 +449,6 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
}
}
- /* Fujitsu D3003-S2 board lists DVI-I as DVI-I and VGA */
- if ((dev->pdev->device == 0x9805) &&
- (dev->pdev->subsystem_vendor == 0x1734) &&
- (dev->pdev->subsystem_device == 0x11bd)) {
- if (*connector_type == DRM_MODE_CONNECTOR_VGA)
- return false;
- }
-
return true;
}
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index f8b20e1c0820..614144d34aea 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -79,6 +79,11 @@ static void radeon_hotplug_work_func(struct work_struct *work)
struct drm_mode_config *mode_config = &dev->mode_config;
struct drm_connector *connector;
+ /* we can race here at startup, some boards seem to trigger
+ * hotplug irqs when they shouldn't. */
+ if (!rdev->mode_info.mode_config_initialized)
+ return;
+
mutex_lock(&mode_config->mutex);
if (mode_config->num_connector) {
list_for_each_entry(connector, &mode_config->connector_list, head)
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 0b00de55b2a4..9a559140e4a3 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -915,8 +915,6 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
/* update display watermarks based on new power state */
radeon_bandwidth_update(rdev);
- /* update displays */
- radeon_dpm_display_configuration_changed(rdev);
rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
@@ -936,6 +934,9 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
radeon_dpm_post_set_power_state(rdev);
+ /* update displays */
+ radeon_dpm_display_configuration_changed(rdev);
+
if (rdev->asic->dpm.force_performance_level) {
if (rdev->pm.dpm.thermal_active) {
enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
@@ -1364,8 +1365,7 @@ int radeon_pm_late_init(struct radeon_device *rdev)
ret = device_create_file(rdev->dev, &dev_attr_power_method);
if (ret)
DRM_ERROR("failed to create device file for power method\n");
- if (!ret)
- rdev->pm.sysfs_initialized = true;
+ rdev->pm.sysfs_initialized = true;
}
mutex_lock(&rdev->pm.mutex);
diff --git a/drivers/gpu/drm/radeon/radeon_sa.c b/drivers/gpu/drm/radeon/radeon_sa.c
index c0625805cdd7..a1d684266549 100644
--- a/drivers/gpu/drm/radeon/radeon_sa.c
+++ b/drivers/gpu/drm/radeon/radeon_sa.c
@@ -349,8 +349,13 @@ int radeon_sa_bo_new(struct radeon_device *rdev,
/* see if we can skip over some allocations */
} while (radeon_sa_bo_next_hole(sa_manager, fences, tries));
+ for (i = 0; i < RADEON_NUM_RINGS; ++i)
+ radeon_fence_ref(fences[i]);
+
spin_unlock(&sa_manager->wq.lock);
r = radeon_fence_wait_any(rdev, fences, false);
+ for (i = 0; i < RADEON_NUM_RINGS; ++i)
+ radeon_fence_unref(&fences[i]);
spin_lock(&sa_manager->wq.lock);
/* if we have nothing to wait for block */
if (r == -ENOENT && block) {
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 45a9a03efc06..2d50433b8c72 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -623,7 +623,7 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
0, PAGE_SIZE,
PCI_DMA_BIDIRECTIONAL);
if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
- while (--i) {
+ while (i--) {
pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
gtt->ttm.dma_address[i] = 0;
diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c
index 8fcb932a3a55..aaefb10aa09e 100644
--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -1415,7 +1415,7 @@ int rv770_resume_smc(struct radeon_device *rdev)
int rv770_set_sw_state(struct radeon_device *rdev)
{
if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_SwitchToSwState) != PPSMC_Result_OK)
- return -EINVAL;
+ DRM_ERROR("rv770_set_sw_state failed\n");
return 0;
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 0771dcbf9ed0..7c48070cf9d8 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -25,6 +25,7 @@
*
**************************************************************************/
#include <linux/module.h>
+#include <linux/console.h>
#include <drm/drmP.h>
#include "vmwgfx_drv.h"
@@ -1383,6 +1384,12 @@ static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
static int __init vmwgfx_init(void)
{
int ret;
+
+#ifdef CONFIG_VGA_CONSOLE
+ if (vgacon_text_force())
+ return -EINVAL;
+#endif
+
ret = drm_pci_init(&driver, &vmw_pci_driver);
if (ret)
DRM_ERROR("Failed initializing DRM.\n");
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index af0259708358..bbb554d586d4 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -392,8 +392,10 @@ int vga_get(struct pci_dev *pdev, unsigned int rsrc, int interruptible)
set_current_state(interruptible ?
TASK_INTERRUPTIBLE :
TASK_UNINTERRUPTIBLE);
- if (signal_pending(current)) {
- rc = -EINTR;
+ if (interruptible && signal_pending(current)) {
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&vga_wait_queue, &wait);
+ rc = -ERESTARTSYS;
break;
}
schedule();
diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
index 126516414c11..44223f5d92d8 100644
--- a/drivers/hwmon/ads1015.c
+++ b/drivers/hwmon/ads1015.c
@@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel,
struct ads1015_data *data = i2c_get_clientdata(client);
unsigned int pga = data->channel_data[channel].pga;
int fullscale = fullscale_table[pga];
- const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
+ const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
return DIV_ROUND_CLOSEST(reg * fullscale, mask);
}
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index 095bb046e2c8..875348699e6e 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -149,7 +149,7 @@ static int iwch_l2t_send(struct t3cdev *tdev, struct sk_buff *skb, struct l2t_en
error = l2t_send(tdev, skb, l2e);
if (error < 0)
kfree_skb(skb);
- return error;
+ return error < 0 ? error : 0;
}
int iwch_cxgb3_ofld_send(struct t3cdev *tdev, struct sk_buff *skb)
@@ -165,7 +165,7 @@ int iwch_cxgb3_ofld_send(struct t3cdev *tdev, struct sk_buff *skb)
error = cxgb3_ofld_send(tdev, skb);
if (error < 0)
kfree_skb(skb);
- return error;
+ return error < 0 ? error : 0;
}
static void release_tid(struct t3cdev *tdev, u32 hwtid, struct sk_buff *skb)
diff --git a/drivers/infiniband/hw/qib/qib_verbs_mcast.c b/drivers/infiniband/hw/qib/qib_verbs_mcast.c
index dabb697b1c2a..48ba1c3e945a 100644
--- a/drivers/infiniband/hw/qib/qib_verbs_mcast.c
+++ b/drivers/infiniband/hw/qib/qib_verbs_mcast.c
@@ -286,15 +286,13 @@ int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
struct qib_ibdev *dev = to_idev(ibqp->device);
struct qib_ibport *ibp = to_iport(ibqp->device, qp->port_num);
struct qib_mcast *mcast = NULL;
- struct qib_mcast_qp *p, *tmp;
+ struct qib_mcast_qp *p, *tmp, *delp = NULL;
struct rb_node *n;
int last = 0;
int ret;
- if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET) {
- ret = -EINVAL;
- goto bail;
- }
+ if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET)
+ return -EINVAL;
spin_lock_irq(&ibp->lock);
@@ -303,8 +301,7 @@ int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
while (1) {
if (n == NULL) {
spin_unlock_irq(&ibp->lock);
- ret = -EINVAL;
- goto bail;
+ return -EINVAL;
}
mcast = rb_entry(n, struct qib_mcast, rb_node);
@@ -328,6 +325,7 @@ int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
*/
list_del_rcu(&p->list);
mcast->n_attached--;
+ delp = p;
/* If this was the last attached QP, remove the GID too. */
if (list_empty(&mcast->qp_list)) {
@@ -338,15 +336,16 @@ int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
}
spin_unlock_irq(&ibp->lock);
+ /* QP not attached */
+ if (!delp)
+ return -EINVAL;
+ /*
+ * Wait for any list walkers to finish before freeing the
+ * list element.
+ */
+ wait_event(mcast->wait, atomic_read(&mcast->refcount) <= 1);
+ qib_mcast_qp_free(delp);
- if (p) {
- /*
- * Wait for any list walkers to finish before freeing the
- * list element.
- */
- wait_event(mcast->wait, atomic_read(&mcast->refcount) <= 1);
- qib_mcast_qp_free(p);
- }
if (last) {
atomic_dec(&mcast->refcount);
wait_event(mcast->wait, !atomic_read(&mcast->refcount));
@@ -355,11 +354,7 @@ int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
dev->n_mcast_grps_allocated--;
spin_unlock_irq(&dev->n_mcast_grps_lock);
}
-
- ret = 0;
-
-bail:
- return ret;
+ return 0;
}
int qib_mcast_tree_empty(struct qib_ibport *ibp)
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 3ae2bb8d9cf2..21a44b168d46 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -204,7 +204,12 @@ int __init fpga_irq_of_init(struct device_node *node,
if (!parent_irq)
parent_irq = -1;
+#ifdef CONFIG_ARCH_VERSATILE
+ fpga_irq_init(base, node->name, IRQ_SIC_START, parent_irq, valid_mask,
+ node);
+#else
fpga_irq_init(base, node->name, 0, parent_irq, valid_mask, node);
+#endif
writel(clear_mask, base + IRQ_ENABLE_CLEAR);
writel(clear_mask, base + FIQ_ENABLE_CLEAR);
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index fbcb6225f794..74a5786ddcce 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1641,6 +1641,7 @@ static void bch_btree_gc(struct cache_set *c)
do {
ret = btree_root(gc_root, c, &op, &writes, &stats);
closure_sync(&writes);
+ cond_resched();
if (ret && ret != -EAGAIN)
pr_warn("gc failed!");
@@ -2037,8 +2038,10 @@ int bch_btree_insert_check_key(struct btree *b, struct btree_op *op,
rw_lock(true, b, b->level);
if (b->key.ptr[0] != btree_ptr ||
- b->seq != seq + 1)
+ b->seq != seq + 1) {
+ op->lock = b->level;
goto out;
+ }
}
SET_KEY_PTRS(check_key, 1);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 24a3a1546caa..1b6beb1e3142 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -712,6 +712,8 @@ static void bcache_device_link(struct bcache_device *d, struct cache_set *c,
WARN(sysfs_create_link(&d->kobj, &c->kobj, "cache") ||
sysfs_create_link(&c->kobj, &d->kobj, d->name),
"Couldn't create device <-> cache set symlinks");
+
+ clear_bit(BCACHE_DEV_UNLINK_DONE, &d->flags);
}
static void bcache_device_detach(struct bcache_device *d)
@@ -882,8 +884,11 @@ void bch_cached_dev_run(struct cached_dev *dc)
buf[SB_LABEL_SIZE] = '\0';
env[2] = kasprintf(GFP_KERNEL, "CACHED_LABEL=%s", buf);
- if (atomic_xchg(&dc->running, 1))
+ if (atomic_xchg(&dc->running, 1)) {
+ kfree(env[1]);
+ kfree(env[2]);
return;
+ }
if (!d->c &&
BDEV_STATE(&dc->sb) != BDEV_STATE_NONE) {
@@ -2081,8 +2086,10 @@ static int __init bcache_init(void)
closure_debug_init();
bcache_major = register_blkdev(0, "bcache");
- if (bcache_major < 0)
+ if (bcache_major < 0) {
+ unregister_reboot_notifier(&reboot);
return bcache_major;
+ }
if (!(bcache_wq = create_workqueue("bcache")) ||
!(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) ||
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index f4300e4c0114..d6525c12c8d8 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -323,6 +323,10 @@ void bcache_dev_sectors_dirty_add(struct cache_set *c, unsigned inode,
static bool dirty_pred(struct keybuf *buf, struct bkey *k)
{
+ struct cached_dev *dc = container_of(buf, struct cached_dev, writeback_keys);
+
+ BUG_ON(KEY_INODE(k) != dc->disk.id);
+
return KEY_DIRTY(k);
}
@@ -372,11 +376,24 @@ next:
}
}
+/*
+ * Returns true if we scanned the entire disk
+ */
static bool refill_dirty(struct cached_dev *dc)
{
struct keybuf *buf = &dc->writeback_keys;
+ struct bkey start = KEY(dc->disk.id, 0, 0);
struct bkey end = KEY(dc->disk.id, MAX_KEY_OFFSET, 0);
- bool searched_from_start = false;
+ struct bkey start_pos;
+
+ /*
+ * make sure keybuf pos is inside the range for this disk - at bringup
+ * we might not be attached yet so this disk's inode nr isn't
+ * initialized then
+ */
+ if (bkey_cmp(&buf->last_scanned, &start) < 0 ||
+ bkey_cmp(&buf->last_scanned, &end) > 0)
+ buf->last_scanned = start;
if (dc->partial_stripes_expensive) {
refill_full_stripes(dc);
@@ -384,14 +401,20 @@ static bool refill_dirty(struct cached_dev *dc)
return false;
}
- if (bkey_cmp(&buf->last_scanned, &end) >= 0) {
- buf->last_scanned = KEY(dc->disk.id, 0, 0);
- searched_from_start = true;
- }
-
+ start_pos = buf->last_scanned;
bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred);
- return bkey_cmp(&buf->last_scanned, &end) >= 0 && searched_from_start;
+ if (bkey_cmp(&buf->last_scanned, &end) < 0)
+ return false;
+
+ /*
+ * If we get to the end start scanning again from the beginning, and
+ * only scan up to where we initially started scanning from:
+ */
+ buf->last_scanned = start;
+ bch_refill_keybuf(dc->disk.c, buf, &start_pos, dirty_pred);
+
+ return bkey_cmp(&buf->last_scanned, &start_pos) >= 0;
}
static int bch_writeback_thread(void *arg)
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index e2f8598937ac..afe7ecada503 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -63,7 +63,8 @@ static inline bool should_writeback(struct cached_dev *dc, struct bio *bio,
static inline void bch_writeback_queue(struct cached_dev *dc)
{
- wake_up_process(dc->writeback_thread);
+ if (!IS_ERR_OR_NULL(dc->writeback_thread))
+ wake_up_process(dc->writeback_thread);
}
static inline void bch_writeback_add(struct cached_dev *dc)
diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h
index 0b2536247cf5..84e27708ad97 100644
--- a/drivers/md/dm-exception-store.h
+++ b/drivers/md/dm-exception-store.h
@@ -70,7 +70,7 @@ struct dm_exception_store_type {
* Update the metadata with this exception.
*/
void (*commit_exception) (struct dm_exception_store *store,
- struct dm_exception *e,
+ struct dm_exception *e, int valid,
void (*callback) (void *, int success),
void *callback_context);
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index d6e88178d22c..d3272acc0f0e 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -700,7 +700,7 @@ static int persistent_prepare_exception(struct dm_exception_store *store,
}
static void persistent_commit_exception(struct dm_exception_store *store,
- struct dm_exception *e,
+ struct dm_exception *e, int valid,
void (*callback) (void *, int success),
void *callback_context)
{
@@ -709,6 +709,9 @@ static void persistent_commit_exception(struct dm_exception_store *store,
struct core_exception ce;
struct commit_callback *cb;
+ if (!valid)
+ ps->valid = 0;
+
ce.old_chunk = e->old_chunk;
ce.new_chunk = e->new_chunk;
write_exception(ps, ps->current_committed++, &ce);
diff --git a/drivers/md/dm-snap-transient.c b/drivers/md/dm-snap-transient.c
index 1ce9a2586e41..31439d53cf7e 100644
--- a/drivers/md/dm-snap-transient.c
+++ b/drivers/md/dm-snap-transient.c
@@ -52,12 +52,12 @@ static int transient_prepare_exception(struct dm_exception_store *store,
}
static void transient_commit_exception(struct dm_exception_store *store,
- struct dm_exception *e,
+ struct dm_exception *e, int valid,
void (*callback) (void *, int success),
void *callback_context)
{
/* Just succeed */
- callback(callback_context, 1);
+ callback(callback_context, valid);
}
static void transient_usage(struct dm_exception_store *store,
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index c356a10b9ba5..2e9117630dbe 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1388,8 +1388,9 @@ static void __invalidate_snapshot(struct dm_snapshot *s, int err)
dm_table_event(s->ti->table);
}
-static void pending_complete(struct dm_snap_pending_exception *pe, int success)
+static void pending_complete(void *context, int success)
{
+ struct dm_snap_pending_exception *pe = context;
struct dm_exception *e;
struct dm_snapshot *s = pe->snap;
struct bio *origin_bios = NULL;
@@ -1460,24 +1461,13 @@ out:
free_pending_exception(pe);
}
-static void commit_callback(void *context, int success)
-{
- struct dm_snap_pending_exception *pe = context;
-
- pending_complete(pe, success);
-}
-
static void complete_exception(struct dm_snap_pending_exception *pe)
{
struct dm_snapshot *s = pe->snap;
- if (unlikely(pe->copy_error))
- pending_complete(pe, 0);
-
- else
- /* Update the metadata if we are persistent */
- s->store->type->commit_exception(s->store, &pe->e,
- commit_callback, pe);
+ /* Update the metadata if we are persistent */
+ s->store->type->commit_exception(s->store, &pe->e, !pe->copy_error,
+ pending_complete, pe);
}
/*
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 3412b86e79fd..7768de60f699 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1205,6 +1205,12 @@ static int __reserve_metadata_snap(struct dm_pool_metadata *pmd)
dm_block_t held_root;
/*
+ * We commit to ensure the btree roots which we increment in a
+ * moment are up to date.
+ */
+ __commit_transaction(pmd);
+
+ /*
* Copy the superblock.
*/
dm_sm_inc_block(pmd->metadata_sm, THIN_SUPERBLOCK_LOCATION);
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index b94e4648c199..d633a3921b3c 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1619,6 +1619,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
case PM_WRITE:
if (old_mode != new_mode)
notify_of_pool_mode_change(pool, "write");
+ pool->pf.error_if_no_space = pt->requested_pf.error_if_no_space;
dm_pool_metadata_read_write(pool->pmd);
pool->process_bio = process_bio;
pool->process_discard = process_discard;
@@ -2567,8 +2568,8 @@ static void pool_postsuspend(struct dm_target *ti)
struct pool_c *pt = ti->private;
struct pool *pool = pt->pool;
- cancel_delayed_work(&pool->waker);
- cancel_delayed_work(&pool->no_space_timeout);
+ cancel_delayed_work_sync(&pool->waker);
+ cancel_delayed_work_sync(&pool->no_space_timeout);
flush_workqueue(pool->wq);
(void) commit(pool);
}
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index 7ba85e2b146b..7b4bb1f09b01 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -250,6 +250,16 @@ static void pop_frame(struct del_stack *s)
dm_tm_unlock(s->tm, f->b);
}
+static void unlock_all_frames(struct del_stack *s)
+{
+ struct frame *f;
+
+ while (unprocessed_frames(s)) {
+ f = s->spine + s->top--;
+ dm_tm_unlock(s->tm, f->b);
+ }
+}
+
int dm_btree_del(struct dm_btree_info *info, dm_block_t root)
{
int r;
@@ -306,9 +316,13 @@ int dm_btree_del(struct dm_btree_info *info, dm_block_t root)
pop_frame(s);
}
}
-
out:
+ if (r) {
+ /* cleanup all frames of del_stack */
+ unlock_all_frames(s);
+ }
kfree(s);
+
return r;
}
EXPORT_SYMBOL_GPL(dm_btree_del);
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 199c9ccd1f5d..032ee39a0e9b 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -136,7 +136,7 @@ static int brb_push(struct bop_ring_buffer *brb,
return 0;
}
-static int brb_pop(struct bop_ring_buffer *brb, struct block_op *result)
+static int brb_peek(struct bop_ring_buffer *brb, struct block_op *result)
{
struct block_op *bop;
@@ -147,6 +147,14 @@ static int brb_pop(struct bop_ring_buffer *brb, struct block_op *result)
result->type = bop->type;
result->block = bop->block;
+ return 0;
+}
+
+static int brb_pop(struct bop_ring_buffer *brb)
+{
+ if (brb_empty(brb))
+ return -ENODATA;
+
brb->begin = brb_next(brb, brb->begin);
return 0;
@@ -211,7 +219,7 @@ static int apply_bops(struct sm_metadata *smm)
while (!brb_empty(&smm->uncommitted)) {
struct block_op bop;
- r = brb_pop(&smm->uncommitted, &bop);
+ r = brb_peek(&smm->uncommitted, &bop);
if (r) {
DMERR("bug in bop ring buffer");
break;
@@ -220,6 +228,8 @@ static int apply_bops(struct sm_metadata *smm)
r = commit_bop(smm, &bop);
if (r)
break;
+
+ brb_pop(&smm->uncommitted);
}
return r;
@@ -681,7 +691,6 @@ static struct dm_space_map bootstrap_ops = {
static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
{
int r, i;
- enum allocation_event ev;
struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm);
dm_block_t old_len = smm->ll.nr_blocks;
@@ -703,11 +712,12 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
* allocate any new blocks.
*/
do {
- for (i = old_len; !r && i < smm->begin; i++) {
- r = sm_ll_inc(&smm->ll, i, &ev);
- if (r)
- goto out;
- }
+ for (i = old_len; !r && i < smm->begin; i++)
+ r = add_bop(smm, BOP_INC, i);
+
+ if (r)
+ goto out;
+
old_len = smm->begin;
r = apply_bops(smm);
@@ -752,7 +762,6 @@ int dm_sm_metadata_create(struct dm_space_map *sm,
{
int r;
dm_block_t i;
- enum allocation_event ev;
struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm);
smm->begin = superblock + 1;
@@ -780,7 +789,7 @@ int dm_sm_metadata_create(struct dm_space_map *sm,
* allocated blocks that they were built from.
*/
for (i = superblock; !r && i < smm->begin; i++)
- r = sm_ll_inc(&smm->ll, i, &ev);
+ r = add_bop(smm, BOP_INC, i);
if (r)
return r;
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 1f925e856974..46a984291b7d 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2195,9 +2195,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n",
__func__, c->delivery_system, fe->ops.info.type);
- /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
- * do it, it is done for it. */
- info->caps |= FE_CAN_INVERSION_AUTO;
+ /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */
+ if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))
+ info->caps |= FE_CAN_INVERSION_AUTO;
err = 0;
break;
}
diff --git a/drivers/media/dvb-frontends/tda1004x.c b/drivers/media/dvb-frontends/tda1004x.c
index a2631be7ffac..08e0f0dd8728 100644
--- a/drivers/media/dvb-frontends/tda1004x.c
+++ b/drivers/media/dvb-frontends/tda1004x.c
@@ -903,9 +903,18 @@ static int tda1004x_get_fe(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache;
struct tda1004x_state* state = fe->demodulator_priv;
+ int status;
dprintk("%s\n", __func__);
+ status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
+ if (status == -1)
+ return -EIO;
+
+ /* Only update the properties cache if device is locked */
+ if (!(status & 8))
+ return 0;
+
// inversion status
fe_params->inversion = INVERSION_OFF;
if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)
diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c
index 90f0d637cd9d..cd05840abc91 100644
--- a/drivers/media/usb/gspca/ov534.c
+++ b/drivers/media/usb/gspca/ov534.c
@@ -1490,8 +1490,13 @@ static void sd_set_streamparm(struct gspca_dev *gspca_dev,
struct v4l2_fract *tpf = &cp->timeperframe;
struct sd *sd = (struct sd *) gspca_dev;
- /* Set requested framerate */
- sd->frame_rate = tpf->denominator / tpf->numerator;
+ if (tpf->numerator == 0 || tpf->denominator == 0)
+ /* Set default framerate */
+ sd->frame_rate = 30;
+ else
+ /* Set requested framerate */
+ sd->frame_rate = tpf->denominator / tpf->numerator;
+
if (gspca_dev->streaming)
set_frame_rate(gspca_dev);
diff --git a/drivers/media/usb/gspca/topro.c b/drivers/media/usb/gspca/topro.c
index 640c2fe760b3..a6fbb2a07979 100644
--- a/drivers/media/usb/gspca/topro.c
+++ b/drivers/media/usb/gspca/topro.c
@@ -4792,7 +4792,11 @@ static void sd_set_streamparm(struct gspca_dev *gspca_dev,
struct v4l2_fract *tpf = &cp->timeperframe;
int fr, i;
- sd->framerate = tpf->denominator / tpf->numerator;
+ if (tpf->numerator == 0 || tpf->denominator == 0)
+ sd->framerate = 30;
+ else
+ sd->framerate = tpf->denominator / tpf->numerator;
+
if (gspca_dev->streaming)
setframerate(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->exposure));
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index d71f5ef036e0..92aeb1d2b41b 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -62,8 +62,7 @@ MODULE_ALIAS("mmc:block");
#define MMC_SANITIZE_REQ_TIMEOUT 240000
#define MMC_EXTRACT_INDEX_FROM_ARG(x) ((x & 0x00FF0000) >> 16)
-#define mmc_req_rel_wr(req) (((req->cmd_flags & REQ_FUA) || \
- (req->cmd_flags & REQ_META)) && \
+#define mmc_req_rel_wr(req) ((req->cmd_flags & REQ_FUA) && \
(rq_data_dir(req) == WRITE))
#define PACKED_CMD_VER 0x01
#define PACKED_CMD_WR 0x02
@@ -1328,13 +1327,9 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
/*
* Reliable writes are used to implement Forced Unit Access and
- * REQ_META accesses, and are supported only on MMCs.
- *
- * XXX: this really needs a good explanation of why REQ_META
- * is treated special.
+ * are supported only on MMCs.
*/
- bool do_rel_wr = ((req->cmd_flags & REQ_FUA) ||
- (req->cmd_flags & REQ_META)) &&
+ bool do_rel_wr = (req->cmd_flags & REQ_FUA) &&
(rq_data_dir(req) == WRITE) &&
(md->flags & MMC_BLK_REL_WR);
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 4d721c6e2af0..ae360b3b4fda 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -670,7 +670,7 @@ try_again:
*/
if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) {
err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
- ocr);
+ ocr_card);
if (err == -EAGAIN) {
sdio_reset(host);
mmc_go_idle(host);
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index b93122636531..8103db25db69 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1860,7 +1860,7 @@ static struct amba_id mmci_ids[] = {
{
.id = 0x00280180,
.mask = 0x00ffffff,
- .data = &variant_u300,
+ .data = &variant_nomadik,
},
{
.id = 0x00480180,
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 881bf89acfcc..75d3c28940f1 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2663,7 +2663,7 @@ static int sdhci_runtime_pm_put(struct sdhci_host *host)
static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
{
- if (host->runtime_suspended || host->bus_on)
+ if (host->bus_on)
return;
host->bus_on = true;
pm_runtime_get_noresume(host->mmc->parent);
@@ -2671,7 +2671,7 @@ static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
{
- if (host->runtime_suspended || !host->bus_on)
+ if (!host->bus_on)
return;
host->bus_on = false;
pm_runtime_put_noidle(host->mmc->parent);
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index c2d0559115d3..732a8ed571c2 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -187,6 +187,9 @@ static void sja1000_start(struct net_device *dev)
/* clear interrupt flags */
priv->read_reg(priv, SJA1000_IR);
+ /* clear interrupt flags */
+ priv->read_reg(priv, SJA1000_IR);
+
/* leave reset mode */
set_normal_mode(dev);
}
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 52c42fd49510..a5735a7797f8 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -117,6 +117,9 @@ MODULE_LICENSE("GPL v2");
*/
#define EMS_USB_ARM7_CLOCK 8000000
+#define CPC_TX_QUEUE_TRIGGER_LOW 25
+#define CPC_TX_QUEUE_TRIGGER_HIGH 35
+
/*
* CAN-Message representation in a CPC_MSG. Message object type is
* CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or
@@ -278,6 +281,11 @@ static void ems_usb_read_interrupt_callback(struct urb *urb)
switch (urb->status) {
case 0:
dev->free_slots = dev->intr_in_buffer[1];
+ if(dev->free_slots > CPC_TX_QUEUE_TRIGGER_HIGH){
+ if (netif_queue_stopped(netdev)){
+ netif_wake_queue(netdev);
+ }
+ }
break;
case -ECONNRESET: /* unlink */
@@ -529,8 +537,6 @@ static void ems_usb_write_bulk_callback(struct urb *urb)
/* Release context */
context->echo_index = MAX_TX_URBS;
- if (netif_queue_stopped(netdev))
- netif_wake_queue(netdev);
}
/*
@@ -590,7 +596,7 @@ static int ems_usb_start(struct ems_usb *dev)
int err, i;
dev->intr_in_buffer[0] = 0;
- dev->free_slots = 15; /* initial size */
+ dev->free_slots = 50; /* initial size */
for (i = 0; i < MAX_RX_URBS; i++) {
struct urb *urb = NULL;
@@ -841,7 +847,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
/* Slow down tx path */
if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS ||
- dev->free_slots < 5) {
+ dev->free_slots < CPC_TX_QUEUE_TRIGGER_LOW) {
netif_stop_queue(netdev);
}
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 1fbeaa9dd202..6ef93562c6b7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -2401,10 +2401,13 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR | \
AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR)
-#define HW_PRTY_ASSERT_SET_3 (AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY | \
- AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY | \
- AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY | \
- AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY)
+#define HW_PRTY_ASSERT_SET_3_WITHOUT_SCPAD \
+ (AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY | \
+ AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY | \
+ AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY)
+
+#define HW_PRTY_ASSERT_SET_3 (HW_PRTY_ASSERT_SET_3_WITHOUT_SCPAD | \
+ AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY)
#define HW_PRTY_ASSERT_SET_4 (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR | \
AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 242874041ba4..e157adb85b2a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -4631,9 +4631,7 @@ static bool bnx2x_check_blocks_with_parity3(struct bnx2x *bp, u32 sig,
res |= true;
break;
case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY:
- if (print)
- _print_next_block((*par_num)++,
- "MCP SCPAD");
+ (*par_num)++;
/* clear latched SCPAD PATIRY from MCP */
REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL,
1UL << 10);
@@ -4695,6 +4693,7 @@ static bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
(sig[3] & HW_PRTY_ASSERT_SET_3) ||
(sig[4] & HW_PRTY_ASSERT_SET_4)) {
int par_num = 0;
+
DP(NETIF_MSG_HW, "Was parity error: HW block parity attention:\n"
"[0]:0x%08x [1]:0x%08x [2]:0x%08x [3]:0x%08x [4]:0x%08x\n",
sig[0] & HW_PRTY_ASSERT_SET_0,
@@ -4702,9 +4701,18 @@ static bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
sig[2] & HW_PRTY_ASSERT_SET_2,
sig[3] & HW_PRTY_ASSERT_SET_3,
sig[4] & HW_PRTY_ASSERT_SET_4);
- if (print)
- netdev_err(bp->dev,
- "Parity errors detected in blocks: ");
+ if (print) {
+ if (((sig[0] & HW_PRTY_ASSERT_SET_0) ||
+ (sig[1] & HW_PRTY_ASSERT_SET_1) ||
+ (sig[2] & HW_PRTY_ASSERT_SET_2) ||
+ (sig[4] & HW_PRTY_ASSERT_SET_4)) ||
+ (sig[3] & HW_PRTY_ASSERT_SET_3_WITHOUT_SCPAD)) {
+ netdev_err(bp->dev,
+ "Parity errors detected in blocks: ");
+ } else {
+ print = false;
+ }
+ }
res |= bnx2x_check_blocks_with_parity0(bp,
sig[0] & HW_PRTY_ASSERT_SET_0, &par_num, print);
res |= bnx2x_check_blocks_with_parity1(bp,
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index 988f9fec0bff..d8c1b69d0f66 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -367,6 +367,7 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
{IWL_PCI_DEVICE(0x095B, 0x5310, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095B, 0x5302, iwl7265_n_cfg)},
{IWL_PCI_DEVICE(0x095B, 0x5210, iwl7265_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x095A, 0x5C10, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x5012, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x5412, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x5410, iwl7265_2ac_cfg)},
@@ -383,10 +384,10 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
{IWL_PCI_DEVICE(0x095A, 0x9012, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x9110, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x9112, iwl7265_2ac_cfg)},
- {IWL_PCI_DEVICE(0x095A, 0x9210, iwl7265_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x095B, 0x9210, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095B, 0x9200, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x9510, iwl7265_2ac_cfg)},
- {IWL_PCI_DEVICE(0x095A, 0x9310, iwl7265_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x095B, 0x9310, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x9410, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x5020, iwl7265_2n_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x502A, iwl7265_2n_cfg)},
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 7c7a388c85ab..126f641a9582 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -1133,8 +1133,10 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot)
{
pci_lock_rescan_remove();
- if (slot->flags & SLOT_IS_GOING_AWAY)
+ if (slot->flags & SLOT_IS_GOING_AWAY) {
+ pci_unlock_rescan_remove();
return -ENODEV;
+ }
mutex_lock(&slot->crit_sect);
/* configure all functions */
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 0bf82a20a0fb..48d21e0edd56 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -262,7 +262,6 @@ static struct aer_rpc *aer_alloc_rpc(struct pcie_device *dev)
rpc->rpd = dev;
INIT_WORK(&rpc->dpc_handler, aer_isr);
mutex_init(&rpc->rpc_mutex);
- init_waitqueue_head(&rpc->wait_release);
/* Use PCIe bus function to store rpc into PCIe device */
set_service_data(dev, rpc);
@@ -285,8 +284,7 @@ static void aer_remove(struct pcie_device *dev)
if (rpc->isr)
free_irq(dev->irq, dev);
- wait_event(rpc->wait_release, rpc->prod_idx == rpc->cons_idx);
-
+ flush_work(&rpc->dpc_handler);
aer_disable_rootport(rpc);
kfree(rpc);
set_service_data(dev, NULL);
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 84420b7c9456..945c939a86c5 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -72,7 +72,6 @@ struct aer_rpc {
* recovery on the same
* root port hierarchy
*/
- wait_queue_head_t wait_release;
};
struct aer_broadcast_data {
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index b2c8881da764..777edcc4aab6 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -785,8 +785,6 @@ void aer_isr(struct work_struct *work)
while (get_e_source(rpc, &e_src))
aer_isr_one_error(p_device, &e_src);
mutex_unlock(&rpc->rpc_mutex);
-
- wake_up(&rpc->wait_release);
}
/**
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 179b8edc2262..318d535e337d 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -52,7 +52,7 @@ struct pcifront_device {
};
struct pcifront_sd {
- int domain;
+ struct pci_sysdata sd;
struct pcifront_device *pdev;
};
@@ -66,7 +66,9 @@ static inline void pcifront_init_sd(struct pcifront_sd *sd,
unsigned int domain, unsigned int bus,
struct pcifront_device *pdev)
{
- sd->domain = domain;
+ /* Because we do not expose that information via XenBus. */
+ sd->sd.node = first_online_node;
+ sd->sd.domain = domain;
sd->pdev = pdev;
}
@@ -464,8 +466,8 @@ static int pcifront_scan_root(struct pcifront_device *pdev,
dev_info(&pdev->xdev->dev, "Creating PCI Frontend Bus %04x:%02x\n",
domain, bus);
- bus_entry = kmalloc(sizeof(*bus_entry), GFP_KERNEL);
- sd = kmalloc(sizeof(*sd), GFP_KERNEL);
+ bus_entry = kzalloc(sizeof(*bus_entry), GFP_KERNEL);
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
if (!bus_entry || !sd) {
err = -ENOMEM;
goto err_out;
diff --git a/drivers/power/wm831x_power.c b/drivers/power/wm831x_power.c
index 3bed2f55cf7d..3ccadf631d45 100644
--- a/drivers/power/wm831x_power.c
+++ b/drivers/power/wm831x_power.c
@@ -567,7 +567,7 @@ static int wm831x_power_probe(struct platform_device *pdev)
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "SYSLO"));
ret = request_threaded_irq(irq, NULL, wm831x_syslo_irq,
- IRQF_TRIGGER_RISING, "System power low",
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT, "System power low",
power);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request SYSLO IRQ %d: %d\n",
@@ -577,7 +577,7 @@ static int wm831x_power_probe(struct platform_device *pdev)
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "PWR SRC"));
ret = request_threaded_irq(irq, NULL, wm831x_pwr_src_irq,
- IRQF_TRIGGER_RISING, "Power source",
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT, "Power source",
power);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request PWR SRC IRQ %d: %d\n",
@@ -590,7 +590,7 @@ static int wm831x_power_probe(struct platform_device *pdev)
platform_get_irq_byname(pdev,
wm831x_bat_irqs[i]));
ret = request_threaded_irq(irq, NULL, wm831x_bat_irq,
- IRQF_TRIGGER_RISING,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
wm831x_bat_irqs[i],
power);
if (ret != 0) {
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 3c6768378a94..4048d7f5babd 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1194,10 +1194,13 @@ static int rapl_detect_domains(struct rapl_package *rp, int cpu)
for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
/* check if the domain is locked by BIOS */
- if (rapl_read_data_raw(rd, FW_LOCK, false, &locked)) {
+ ret = rapl_read_data_raw(rd, FW_LOCK, false, &locked);
+ if (ret)
+ return ret;
+ if (locked) {
pr_info("RAPL package %d domain %s locked by BIOS\n",
rp->id, rd->name);
- rd->state |= DOMAIN_STATE_BIOS_LOCKED;
+ rd->state |= DOMAIN_STATE_BIOS_LOCKED;
}
}
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index a2597e683e79..6a64e86e8ccd 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -264,8 +264,10 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device)
spin_unlock_irqrestore(&lcu->lock, flags);
cancel_work_sync(&lcu->suc_data.worker);
spin_lock_irqsave(&lcu->lock, flags);
- if (device == lcu->suc_data.device)
+ if (device == lcu->suc_data.device) {
+ dasd_put_device(device);
lcu->suc_data.device = NULL;
+ }
}
was_pending = 0;
if (device == lcu->ruac_data.device) {
@@ -273,8 +275,10 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device)
was_pending = 1;
cancel_delayed_work_sync(&lcu->ruac_data.dwork);
spin_lock_irqsave(&lcu->lock, flags);
- if (device == lcu->ruac_data.device)
+ if (device == lcu->ruac_data.device) {
+ dasd_put_device(device);
lcu->ruac_data.device = NULL;
+ }
}
private->lcu = NULL;
spin_unlock_irqrestore(&lcu->lock, flags);
@@ -549,8 +553,10 @@ static void lcu_update_work(struct work_struct *work)
if ((rc && (rc != -EOPNOTSUPP)) || (lcu->flags & NEED_UAC_UPDATE)) {
DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
" alias data in lcu (rc = %d), retry later", rc);
- schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
+ if (!schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ))
+ dasd_put_device(device);
} else {
+ dasd_put_device(device);
lcu->ruac_data.device = NULL;
lcu->flags &= ~UPDATE_PENDING;
}
@@ -593,8 +599,10 @@ static int _schedule_lcu_update(struct alias_lcu *lcu,
*/
if (!usedev)
return -EINVAL;
+ dasd_get_device(usedev);
lcu->ruac_data.device = usedev;
- schedule_delayed_work(&lcu->ruac_data.dwork, 0);
+ if (!schedule_delayed_work(&lcu->ruac_data.dwork, 0))
+ dasd_put_device(usedev);
return 0;
}
@@ -722,7 +730,7 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
ASCEBC((char *) &cqr->magic, 4);
ccw = cqr->cpaddr;
ccw->cmd_code = DASD_ECKD_CCW_RSCK;
- ccw->flags = 0 ;
+ ccw->flags = CCW_FLAG_SLI;
ccw->count = 16;
ccw->cda = (__u32)(addr_t) cqr->data;
((char *)cqr->data)[0] = reason;
@@ -926,6 +934,7 @@ static void summary_unit_check_handling_work(struct work_struct *work)
/* 3. read new alias configuration */
_schedule_lcu_update(lcu, device);
lcu->suc_data.device = NULL;
+ dasd_put_device(device);
spin_unlock_irqrestore(&lcu->lock, flags);
}
@@ -985,6 +994,8 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
}
lcu->suc_data.reason = reason;
lcu->suc_data.device = device;
+ dasd_get_device(device);
spin_unlock(&lcu->lock);
- schedule_work(&lcu->suc_data.worker);
+ if (!schedule_work(&lcu->suc_data.worker))
+ dasd_put_device(device);
};
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 34452ea386ac..52636cfbab8f 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -334,6 +334,8 @@ enum MR_EVT_ARGS {
MR_EVT_ARGS_GENERIC,
};
+
+#define SGE_BUFFER_SIZE 4096
/*
* define constants for device list query options
*/
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index c80afde97e96..9f833f1504cc 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -3821,7 +3821,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
}
}
instance->max_sectors_per_req = instance->max_num_sge *
- PAGE_SIZE / 512;
+ SGE_BUFFER_SIZE / 512;
if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
instance->max_sectors_per_req = tmp_sectors;
@@ -5281,6 +5281,9 @@ static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
int i;
int error = 0;
compat_uptr_t ptr;
+ unsigned long local_raw_ptr;
+ u32 local_sense_off;
+ u32 local_sense_len;
if (clear_user(ioc, sizeof(*ioc)))
return -EFAULT;
@@ -5298,9 +5301,15 @@ static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
* sense_len is not null, so prepare the 64bit value under
* the same condition.
*/
- if (ioc->sense_len) {
+ if (get_user(local_raw_ptr, ioc->frame.raw) ||
+ get_user(local_sense_off, &ioc->sense_off) ||
+ get_user(local_sense_len, &ioc->sense_len))
+ return -EFAULT;
+
+
+ if (local_sense_len) {
void __user **sense_ioc_ptr =
- (void __user **)(ioc->frame.raw + ioc->sense_off);
+ (void __user **)((u8*)local_raw_ptr + local_sense_off);
compat_uptr_t *sense_cioc_ptr =
(compat_uptr_t *)(cioc->frame.raw + cioc->sense_off);
if (get_user(ptr, sense_cioc_ptr) ||
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index eba183c428cf..3643bbf5456d 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -70,6 +70,7 @@ static int ses_probe(struct device *dev)
static int ses_recv_diag(struct scsi_device *sdev, int page_code,
void *buf, int bufflen)
{
+ int ret;
unsigned char cmd[] = {
RECEIVE_DIAGNOSTIC,
1, /* Set PCV bit */
@@ -78,9 +79,26 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
bufflen & 0xff,
0
};
+ unsigned char recv_page_code;
- return scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
+ ret = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
NULL, SES_TIMEOUT, SES_RETRIES, NULL);
+ if (unlikely(!ret))
+ return ret;
+
+ recv_page_code = ((unsigned char *)buf)[0];
+
+ if (likely(recv_page_code == page_code))
+ return ret;
+
+ /* successful diagnostic but wrong page code. This happens to some
+ * USB devices, just print a message and pretend there was an error */
+
+ sdev_printk(KERN_ERR, sdev,
+ "Wrong diagnostic page; asked for %d got %u\n",
+ page_code, recv_page_code);
+
+ return -EINVAL;
}
static int ses_send_diag(struct scsi_device *sdev, int page_code,
@@ -436,7 +454,15 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
if (desc_ptr)
desc_ptr += len;
- if (addl_desc_ptr)
+ if (addl_desc_ptr &&
+ /* only find additional descriptions for specific devices */
+ (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_SAS_EXPANDER ||
+ /* these elements are optional */
+ type_ptr[0] == ENCLOSURE_COMPONENT_SCSI_TARGET_PORT ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_CONTROLLER_ELECTRONICS))
addl_desc_ptr += addl_desc_ptr[1] + 2;
}
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 3bb6646bb406..f9da66fa850b 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1610,8 +1610,7 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
vm_srb->win8_extension.time_out_value = 60;
vm_srb->win8_extension.srb_flags |=
- (SRB_FLAGS_QUEUE_ACTION_ENABLE |
- SRB_FLAGS_DISABLE_SYNCH_TRANSFER);
+ SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
/* Build the SRB */
switch (scmnd->sc_data_direction) {
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index f89b24a09b19..231d63caa663 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -314,7 +314,8 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o
return 0;
}
-static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd, bool success)
+static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd, bool success,
+ int *post_ret)
{
unsigned char *buf, *addr;
struct scatterlist *sg;
@@ -378,7 +379,8 @@ sbc_execute_rw(struct se_cmd *cmd)
cmd->data_direction);
}
-static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success)
+static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success,
+ int *post_ret)
{
struct se_device *dev = cmd->se_dev;
@@ -388,8 +390,10 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success)
* sent to the backend driver.
*/
spin_lock_irq(&cmd->t_state_lock);
- if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status)
+ if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status) {
cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST;
+ *post_ret = 1;
+ }
spin_unlock_irq(&cmd->t_state_lock);
/*
@@ -401,7 +405,8 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success)
return TCM_NO_SENSE;
}
-static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success)
+static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success,
+ int *post_ret)
{
struct se_device *dev = cmd->se_dev;
struct scatterlist *write_sg = NULL, *sg;
@@ -497,11 +502,11 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool succes
if (block_size < PAGE_SIZE) {
sg_set_page(&write_sg[i], m.page, block_size,
- block_size);
+ m.piter.sg->offset + block_size);
} else {
sg_miter_next(&m);
sg_set_page(&write_sg[i], m.page, block_size,
- 0);
+ m.piter.sg->offset);
}
len -= block_size;
i++;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 6fc38903046c..7afea9b59e2c 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1581,7 +1581,7 @@ bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags)
void transport_generic_request_failure(struct se_cmd *cmd,
sense_reason_t sense_reason)
{
- int ret = 0;
+ int ret = 0, post_ret = 0;
pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
" CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
@@ -1604,7 +1604,7 @@ void transport_generic_request_failure(struct se_cmd *cmd,
*/
if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) &&
cmd->transport_complete_callback)
- cmd->transport_complete_callback(cmd, false);
+ cmd->transport_complete_callback(cmd, false, &post_ret);
switch (sense_reason) {
case TCM_NON_EXISTENT_LUN:
@@ -1940,11 +1940,13 @@ static void target_complete_ok_work(struct work_struct *work)
*/
if (cmd->transport_complete_callback) {
sense_reason_t rc;
+ bool caw = (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE);
+ bool zero_dl = !(cmd->data_length);
+ int post_ret = 0;
- rc = cmd->transport_complete_callback(cmd, true);
- if (!rc && !(cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE_POST)) {
- if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) &&
- !cmd->data_length)
+ rc = cmd->transport_complete_callback(cmd, true, &post_ret);
+ if (!rc && !post_ret) {
+ if (caw && zero_dl)
goto queue_rsp;
return;
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 2aca88715632..584514c7ed1f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1810,6 +1810,11 @@ static const struct usb_device_id acm_ids[] = {
},
#endif
+ /*Samsung phone in firmware update mode */
+ { USB_DEVICE(0x04e8, 0x685d),
+ .driver_info = IGNORE_DEVICE,
+ },
+
/* Exclude Infineon Flash Loader utility */
{ USB_DEVICE(0x058b, 0x0041),
.driver_info = IGNORE_DEVICE,
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 02e6fe228a63..21bf168981f9 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -162,6 +162,8 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+ { USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
+ { USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
{ USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 81f6a572f016..9bab34cf01d4 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -315,6 +315,7 @@ static void option_instat_callback(struct urb *urb);
#define TOSHIBA_PRODUCT_G450 0x0d45
#define ALINK_VENDOR_ID 0x1e0e
+#define SIMCOM_PRODUCT_SIM7100E 0x9001 /* Yes, ALINK_VENDOR_ID */
#define ALINK_PRODUCT_PH300 0x9100
#define ALINK_PRODUCT_3GU 0x9200
@@ -615,6 +616,10 @@ static const struct option_blacklist_info zte_1255_blacklist = {
.reserved = BIT(3) | BIT(4),
};
+static const struct option_blacklist_info simcom_sim7100e_blacklist = {
+ .reserved = BIT(5) | BIT(6),
+};
+
static const struct option_blacklist_info telit_le910_blacklist = {
.sendsetup = BIT(0),
.reserved = BIT(1) | BIT(2),
@@ -1130,6 +1135,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
+ { USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, 0x6001, 0xff, 0xff, 0xff), /* 4G LTE usb-modem U901 */
+ .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
@@ -1645,6 +1652,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
{ USB_DEVICE(ALINK_VENDOR_ID, ALINK_PRODUCT_PH300) },
{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
+ { USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
+ .driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist },
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
.driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
},
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index fed0ce198ae3..64eba4f51f71 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -249,6 +249,7 @@ static int virtio_init(void)
static void __exit virtio_exit(void)
{
bus_unregister(&virtio_bus);
+ ida_destroy(&virtio_index_ida);
}
core_initcall(virtio_init);
module_exit(virtio_exit);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f48d5fc352a9..469051b01fbf 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2336,6 +2336,7 @@ int open_ctree(struct super_block *sb,
if (btrfs_check_super_csum(bh->b_data)) {
printk(KERN_ERR "BTRFS: superblock checksum mismatch\n");
err = -EINVAL;
+ brelse(bh);
goto fail_alloc;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 08824fe6ef44..fb37441a592f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7511,15 +7511,28 @@ int btrfs_readpage(struct file *file, struct page *page)
static int btrfs_writepage(struct page *page, struct writeback_control *wbc)
{
struct extent_io_tree *tree;
-
+ struct inode *inode = page->mapping->host;
+ int ret;
if (current->flags & PF_MEMALLOC) {
redirty_page_for_writepage(wbc, page);
unlock_page(page);
return 0;
}
+
+ /*
+ * If we are under memory pressure we will call this directly from the
+ * VM, we need to make sure we have the inode referenced for the ordered
+ * extent. If not just return like we didn't do anything.
+ */
+ if (!igrab(inode)) {
+ redirty_page_for_writepage(wbc, page);
+ return AOP_WRITEPAGE_ACTIVATE;
+ }
tree = &BTRFS_I(page->mapping->host)->io_tree;
- return extent_write_full_page(tree, page, btrfs_get_extent, wbc);
+ ret = extent_write_full_page(tree, page, btrfs_get_extent, wbc);
+ btrfs_add_delayed_iput(inode);
+ return ret;
}
static int btrfs_writepages(struct address_space *mapping,
@@ -8612,9 +8625,11 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
/*
* 2 items for inode item and ref
* 2 items for dir items
+ * 1 item for updating parent inode item
+ * 1 item for the inline extent item
* 1 item for xattr if selinux is on
*/
- trans = btrfs_start_transaction(root, 5);
+ trans = btrfs_start_transaction(root, 7);
if (IS_ERR(trans))
return PTR_ERR(trans);
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 20d793542096..0fd23ab3b4ad 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -1377,7 +1377,21 @@ static int read_symlink(struct btrfs_root *root,
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
goto out;
- BUG_ON(ret);
+ if (ret) {
+ /*
+ * An empty symlink inode. Can happen in rare error paths when
+ * creating a symlink (transaction committed before the inode
+ * eviction handler removed the symlink inode items and a crash
+ * happened in between or the subvol was snapshoted in between).
+ * Print an informative message to dmesg/syslog so that the user
+ * can delete the symlink.
+ */
+ btrfs_err(root->fs_info,
+ "Found empty symlink inode %llu at root %llu",
+ ino, root->root_key.objectid);
+ ret = -EIO;
+ goto out;
+ }
ei = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_file_extent_item);
diff --git a/fs/dcache.c b/fs/dcache.c
index 65ccdf0e2854..9b235362efcd 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -439,42 +439,12 @@ void d_drop(struct dentry *dentry)
}
EXPORT_SYMBOL(d_drop);
-/*
- * Finish off a dentry we've decided to kill.
- * dentry->d_lock must be held, returns with it unlocked.
- * If ref is non-zero, then decrement the refcount too.
- * Returns dentry requiring refcount drop, or NULL if we're done.
- */
-static struct dentry *
-dentry_kill(struct dentry *dentry, int unlock_on_failure)
- __releases(dentry->d_lock)
+static void __dentry_kill(struct dentry *dentry)
{
- struct inode *inode;
struct dentry *parent = NULL;
bool can_free = true;
-
- if (unlikely(dentry->d_flags & DCACHE_DENTRY_KILLED)) {
- can_free = dentry->d_flags & DCACHE_MAY_FREE;
- spin_unlock(&dentry->d_lock);
- goto out;
- }
-
- inode = dentry->d_inode;
- if (inode && !spin_trylock(&inode->i_lock)) {
-relock:
- if (unlock_on_failure) {
- spin_unlock(&dentry->d_lock);
- cpu_relax();
- }
- return dentry; /* try again with same dentry */
- }
if (!IS_ROOT(dentry))
parent = dentry->d_parent;
- if (parent && !spin_trylock(&parent->d_lock)) {
- if (inode)
- spin_unlock(&inode->i_lock);
- goto relock;
- }
/*
* The dentry is now unrecoverably dead to the world.
@@ -518,9 +488,74 @@ relock:
can_free = false;
}
spin_unlock(&dentry->d_lock);
-out:
if (likely(can_free))
dentry_free(dentry);
+}
+
+/*
+ * Finish off a dentry we've decided to kill.
+ * dentry->d_lock must be held, returns with it unlocked.
+ * If ref is non-zero, then decrement the refcount too.
+ * Returns dentry requiring refcount drop, or NULL if we're done.
+ */
+static struct dentry *dentry_kill(struct dentry *dentry)
+ __releases(dentry->d_lock)
+{
+ struct inode *inode = dentry->d_inode;
+ struct dentry *parent = NULL;
+
+ if (inode && unlikely(!spin_trylock(&inode->i_lock)))
+ goto failed;
+
+ if (!IS_ROOT(dentry)) {
+ parent = dentry->d_parent;
+ if (unlikely(!spin_trylock(&parent->d_lock))) {
+ if (inode)
+ spin_unlock(&inode->i_lock);
+ goto failed;
+ }
+ }
+
+ __dentry_kill(dentry);
+ return parent;
+
+failed:
+ spin_unlock(&dentry->d_lock);
+ cpu_relax();
+ return dentry; /* try again with same dentry */
+}
+
+static inline struct dentry *lock_parent(struct dentry *dentry)
+{
+ struct dentry *parent = dentry->d_parent;
+ if (IS_ROOT(dentry))
+ return NULL;
+ if (unlikely((int)dentry->d_lockref.count < 0))
+ return NULL;
+ if (likely(spin_trylock(&parent->d_lock)))
+ return parent;
+ rcu_read_lock();
+ spin_unlock(&dentry->d_lock);
+again:
+ parent = ACCESS_ONCE(dentry->d_parent);
+ spin_lock(&parent->d_lock);
+ /*
+ * We can't blindly lock dentry until we are sure
+ * that we won't violate the locking order.
+ * Any changes of dentry->d_parent must have
+ * been done with parent->d_lock held, so
+ * spin_lock() above is enough of a barrier
+ * for checking if it's still our child.
+ */
+ if (unlikely(parent != dentry->d_parent)) {
+ spin_unlock(&parent->d_lock);
+ goto again;
+ }
+ rcu_read_unlock();
+ if (parent != dentry)
+ spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
+ else
+ parent = NULL;
return parent;
}
@@ -580,7 +615,7 @@ repeat:
return;
kill_it:
- dentry = dentry_kill(dentry, 1);
+ dentry = dentry_kill(dentry);
if (dentry)
goto repeat;
}
@@ -798,8 +833,11 @@ static void shrink_dentry_list(struct list_head *list)
struct dentry *dentry, *parent;
while (!list_empty(list)) {
+ struct inode *inode;
dentry = list_entry(list->prev, struct dentry, d_lru);
spin_lock(&dentry->d_lock);
+ parent = lock_parent(dentry);
+
/*
* The dispose list is isolated and dentries are not accounted
* to the LRU here, so we can simply remove it from the list
@@ -813,26 +851,33 @@ static void shrink_dentry_list(struct list_head *list)
*/
if ((int)dentry->d_lockref.count > 0) {
spin_unlock(&dentry->d_lock);
+ if (parent)
+ spin_unlock(&parent->d_lock);
continue;
}
- parent = dentry_kill(dentry, 0);
- /*
- * If dentry_kill returns NULL, we have nothing more to do.
- */
- if (!parent)
+
+ if (unlikely(dentry->d_flags & DCACHE_DENTRY_KILLED)) {
+ bool can_free = dentry->d_flags & DCACHE_MAY_FREE;
+ spin_unlock(&dentry->d_lock);
+ if (parent)
+ spin_unlock(&parent->d_lock);
+ if (can_free)
+ dentry_free(dentry);
continue;
+ }
- if (unlikely(parent == dentry)) {
- /*
- * trylocks have failed and d_lock has been held the
- * whole time, so it could not have been added to any
- * other lists. Just add it back to the shrink list.
- */
+ inode = dentry->d_inode;
+ if (inode && unlikely(!spin_trylock(&inode->i_lock))) {
d_shrink_add(dentry, list);
spin_unlock(&dentry->d_lock);
+ if (parent)
+ spin_unlock(&parent->d_lock);
continue;
}
+
+ __dentry_kill(dentry);
+
/*
* We need to prune ancestors too. This is necessary to prevent
* quadratic behavior of shrink_dcache_parent(), but is also
@@ -840,8 +885,26 @@ static void shrink_dentry_list(struct list_head *list)
* fragmentation.
*/
dentry = parent;
- while (dentry && !lockref_put_or_lock(&dentry->d_lockref))
- dentry = dentry_kill(dentry, 1);
+ while (dentry && !lockref_put_or_lock(&dentry->d_lockref)) {
+ parent = lock_parent(dentry);
+ if (dentry->d_lockref.count != 1) {
+ dentry->d_lockref.count--;
+ spin_unlock(&dentry->d_lock);
+ if (parent)
+ spin_unlock(&parent->d_lock);
+ break;
+ }
+ inode = dentry->d_inode; /* can't be NULL */
+ if (unlikely(!spin_trylock(&inode->i_lock))) {
+ spin_unlock(&dentry->d_lock);
+ if (parent)
+ spin_unlock(&parent->d_lock);
+ cpu_relax();
+ continue;
+ }
+ __dentry_kill(dentry);
+ dentry = parent;
+ }
}
}
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index fe649d325b1f..ce653dfb0ae3 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -720,15 +720,13 @@ static int hostfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
init_special_inode(inode, mode, dev);
err = do_mknod(name, mode, MAJOR(dev), MINOR(dev));
- if (!err)
+ if (err)
goto out_free;
err = read_name(inode, name);
__putname(name);
if (err)
goto out_put;
- if (err)
- goto out_put;
d_instantiate(dentry, inode);
return 0;
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 969d589c848d..b5f3c3ab0d5f 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -116,7 +116,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni,
atomic_inc(&nsm->sm_count);
else {
host = NULL;
- nsm = nsm_get_handle(ni->sap, ni->salen,
+ nsm = nsm_get_handle(ni->net, ni->sap, ni->salen,
ni->hostname, ni->hostname_len);
if (unlikely(nsm == NULL)) {
dprintk("lockd: %s failed; no nsm handle\n",
@@ -534,17 +534,18 @@ static struct nlm_host *next_host_state(struct hlist_head *cache,
/**
* nlm_host_rebooted - Release all resources held by rebooted host
+ * @net: network namespace
* @info: pointer to decoded results of NLM_SM_NOTIFY call
*
* We were notified that the specified host has rebooted. Release
* all resources held by that peer.
*/
-void nlm_host_rebooted(const struct nlm_reboot *info)
+void nlm_host_rebooted(const struct net *net, const struct nlm_reboot *info)
{
struct nsm_handle *nsm;
struct nlm_host *host;
- nsm = nsm_reboot_lookup(info);
+ nsm = nsm_reboot_lookup(net, info);
if (unlikely(nsm == NULL))
return;
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 6ae664b489af..13fac49aff7f 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -51,7 +51,6 @@ struct nsm_res {
};
static const struct rpc_program nsm_program;
-static LIST_HEAD(nsm_handles);
static DEFINE_SPINLOCK(nsm_lock);
/*
@@ -259,33 +258,35 @@ void nsm_unmonitor(const struct nlm_host *host)
}
}
-static struct nsm_handle *nsm_lookup_hostname(const char *hostname,
- const size_t len)
+static struct nsm_handle *nsm_lookup_hostname(const struct list_head *nsm_handles,
+ const char *hostname, const size_t len)
{
struct nsm_handle *nsm;
- list_for_each_entry(nsm, &nsm_handles, sm_link)
+ list_for_each_entry(nsm, nsm_handles, sm_link)
if (strlen(nsm->sm_name) == len &&
memcmp(nsm->sm_name, hostname, len) == 0)
return nsm;
return NULL;
}
-static struct nsm_handle *nsm_lookup_addr(const struct sockaddr *sap)
+static struct nsm_handle *nsm_lookup_addr(const struct list_head *nsm_handles,
+ const struct sockaddr *sap)
{
struct nsm_handle *nsm;
- list_for_each_entry(nsm, &nsm_handles, sm_link)
+ list_for_each_entry(nsm, nsm_handles, sm_link)
if (rpc_cmp_addr(nsm_addr(nsm), sap))
return nsm;
return NULL;
}
-static struct nsm_handle *nsm_lookup_priv(const struct nsm_private *priv)
+static struct nsm_handle *nsm_lookup_priv(const struct list_head *nsm_handles,
+ const struct nsm_private *priv)
{
struct nsm_handle *nsm;
- list_for_each_entry(nsm, &nsm_handles, sm_link)
+ list_for_each_entry(nsm, nsm_handles, sm_link)
if (memcmp(nsm->sm_priv.data, priv->data,
sizeof(priv->data)) == 0)
return nsm;
@@ -350,6 +351,7 @@ static struct nsm_handle *nsm_create_handle(const struct sockaddr *sap,
/**
* nsm_get_handle - Find or create a cached nsm_handle
+ * @net: network namespace
* @sap: pointer to socket address of handle to find
* @salen: length of socket address
* @hostname: pointer to C string containing hostname to find
@@ -362,11 +364,13 @@ static struct nsm_handle *nsm_create_handle(const struct sockaddr *sap,
* @hostname cannot be found in the handle cache. Returns NULL if
* an error occurs.
*/
-struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
+struct nsm_handle *nsm_get_handle(const struct net *net,
+ const struct sockaddr *sap,
const size_t salen, const char *hostname,
const size_t hostname_len)
{
struct nsm_handle *cached, *new = NULL;
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
if (hostname && memchr(hostname, '/', hostname_len) != NULL) {
if (printk_ratelimit()) {
@@ -381,9 +385,10 @@ retry:
spin_lock(&nsm_lock);
if (nsm_use_hostnames && hostname != NULL)
- cached = nsm_lookup_hostname(hostname, hostname_len);
+ cached = nsm_lookup_hostname(&ln->nsm_handles,
+ hostname, hostname_len);
else
- cached = nsm_lookup_addr(sap);
+ cached = nsm_lookup_addr(&ln->nsm_handles, sap);
if (cached != NULL) {
atomic_inc(&cached->sm_count);
@@ -397,7 +402,7 @@ retry:
}
if (new != NULL) {
- list_add(&new->sm_link, &nsm_handles);
+ list_add(&new->sm_link, &ln->nsm_handles);
spin_unlock(&nsm_lock);
dprintk("lockd: created nsm_handle for %s (%s)\n",
new->sm_name, new->sm_addrbuf);
@@ -414,19 +419,22 @@ retry:
/**
* nsm_reboot_lookup - match NLMPROC_SM_NOTIFY arguments to an nsm_handle
+ * @net: network namespace
* @info: pointer to NLMPROC_SM_NOTIFY arguments
*
* Returns a matching nsm_handle if found in the nsm cache. The returned
* nsm_handle's reference count is bumped. Otherwise returns NULL if some
* error occurred.
*/
-struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info)
+struct nsm_handle *nsm_reboot_lookup(const struct net *net,
+ const struct nlm_reboot *info)
{
struct nsm_handle *cached;
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
spin_lock(&nsm_lock);
- cached = nsm_lookup_priv(&info->priv);
+ cached = nsm_lookup_priv(&ln->nsm_handles, &info->priv);
if (unlikely(cached == NULL)) {
spin_unlock(&nsm_lock);
dprintk("lockd: never saw rebooted peer '%.*s' before\n",
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
index 5010b55628b4..414da99744e9 100644
--- a/fs/lockd/netns.h
+++ b/fs/lockd/netns.h
@@ -16,6 +16,7 @@ struct lockd_net {
spinlock_t nsm_clnt_lock;
unsigned int nsm_users;
struct rpc_clnt *nsm_clnt;
+ struct list_head nsm_handles;
};
extern int lockd_net_id;
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 59a53f664005..bb1ad4df024d 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -583,6 +583,7 @@ static int lockd_init_net(struct net *net)
INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender);
INIT_LIST_HEAD(&ln->grace_list);
spin_lock_init(&ln->nsm_clnt_lock);
+ INIT_LIST_HEAD(&ln->nsm_handles);
return 0;
}
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index b147d1ae71fd..09c576f26c7b 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -421,7 +421,7 @@ nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
return rpc_system_err;
}
- nlm_host_rebooted(argp);
+ nlm_host_rebooted(SVC_NET(rqstp), argp);
return rpc_success;
}
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 21171f0c6477..fb26b9f522e7 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -464,7 +464,7 @@ nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
return rpc_system_err;
}
- nlm_host_rebooted(argp);
+ nlm_host_rebooted(SVC_NET(rqstp), argp);
return rpc_success;
}
diff --git a/fs/namei.c b/fs/namei.c
index f4f6460b6958..c24781f07cf3 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3085,6 +3085,10 @@ opened:
goto exit_fput;
}
out:
+ if (unlikely(error > 0)) {
+ WARN_ON(1);
+ error = -EINVAL;
+ }
if (got_write)
mnt_drop_write(nd->path.mnt);
path_put(&save_parent);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 45a7dd36b4a6..3b5e86fd2800 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2187,9 +2187,9 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
dentry = d_add_unique(dentry, igrab(state->inode));
if (dentry == NULL) {
dentry = opendata->dentry;
- } else if (dentry != ctx->dentry) {
+ } else {
dput(ctx->dentry);
- ctx->dentry = dget(dentry);
+ ctx->dentry = dentry;
}
nfs_set_verifier(dentry,
nfs_save_change_attribute(opendata->dir->d_inode));
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index c402b672a474..1c02b300dc5d 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1482,7 +1482,7 @@ restart:
spin_unlock(&state->state_lock);
}
nfs4_put_open_state(state);
- clear_bit(NFS4CLNT_RECLAIM_NOGRACE,
+ clear_bit(NFS_STATE_RECLAIM_NOGRACE,
&state->flags);
spin_lock(&sp->so_lock);
goto restart;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index eaa7374305a3..6b1d8498d208 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -165,7 +165,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
if (!priv->task)
return ERR_PTR(-ESRCH);
- mm = mm_access(priv->task, PTRACE_MODE_READ);
+ mm = mm_access(priv->task, PTRACE_MODE_READ_FSCREDS);
if (!mm || IS_ERR(mm))
return mm;
down_read(&mm->mmap_sem);
@@ -1182,7 +1182,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
if (!pm.buffer)
goto out_task;
- mm = mm_access(task, PTRACE_MODE_READ);
+ mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
ret = PTR_ERR(mm);
if (!mm || IS_ERR(mm))
goto out_free;
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 678455d2d683..f9db7e9f6966 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -216,7 +216,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
if (!priv->task)
return ERR_PTR(-ESRCH);
- mm = mm_access(priv->task, PTRACE_MODE_READ);
+ mm = mm_access(priv->task, PTRACE_MODE_READ_FSCREDS);
if (!mm || IS_ERR(mm)) {
put_task_struct(priv->task);
priv->task = NULL;
diff --git a/fs/splice.c b/fs/splice.c
index f345d53f94da..e64f59960ec5 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -949,6 +949,7 @@ ssize_t __splice_from_pipe(struct pipe_inode_info *pipe, struct splice_desc *sd,
splice_from_pipe_begin(sd);
do {
+ cond_resched();
ret = splice_from_pipe_next(pipe, sd);
if (ret > 0)
ret = splice_from_pipe_feed(pipe, sd, actor);
@@ -1175,7 +1176,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
long ret, bytes;
umode_t i_mode;
size_t len;
- int i, flags;
+ int i, flags, more;
/*
* We require the input being a regular file, as we don't want to
@@ -1218,6 +1219,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
* Don't block on output, we have to drain the direct pipe.
*/
sd->flags &= ~SPLICE_F_NONBLOCK;
+ more = sd->flags & SPLICE_F_MORE;
while (len) {
size_t read_len;
@@ -1231,6 +1233,15 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
sd->total_len = read_len;
/*
+ * If more data is pending, set SPLICE_F_MORE
+ * If this is the last data and SPLICE_F_MORE was not set
+ * initially, clears it.
+ */
+ if (read_len < len)
+ sd->flags |= SPLICE_F_MORE;
+ else if (!more)
+ sd->flags &= ~SPLICE_F_MORE;
+ /*
* NOTE: nonblocking mode only applies to the input. We
* must not do the output in nonblocking mode as then we
* could get stuck data in the internal pipe:
diff --git a/include/asm-generic/cputime_nsecs.h b/include/asm-generic/cputime_nsecs.h
index 2c9e62c2bfd0..f55fb04501ec 100644
--- a/include/asm-generic/cputime_nsecs.h
+++ b/include/asm-generic/cputime_nsecs.h
@@ -70,7 +70,7 @@ typedef u64 __nocast cputime64_t;
*/
static inline cputime_t timespec_to_cputime(const struct timespec *val)
{
- u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
+ u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
return (__force cputime_t) ret;
}
static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
@@ -86,7 +86,8 @@ static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
*/
static inline cputime_t timeval_to_cputime(const struct timeval *val)
{
- u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC;
+ u64 ret = (u64)val->tv_sec * NSEC_PER_SEC +
+ val->tv_usec * NSEC_PER_USEC;
return (__force cputime_t) ret;
}
static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h
index 9a33c5f7e126..f6c229e2bffa 100644
--- a/include/linux/enclosure.h
+++ b/include/linux/enclosure.h
@@ -29,7 +29,11 @@
/* A few generic types ... taken from ses-2 */
enum enclosure_component_type {
ENCLOSURE_COMPONENT_DEVICE = 0x01,
+ ENCLOSURE_COMPONENT_CONTROLLER_ELECTRONICS = 0x07,
+ ENCLOSURE_COMPONENT_SCSI_TARGET_PORT = 0x14,
+ ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT = 0x15,
ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17,
+ ENCLOSURE_COMPONENT_SAS_EXPANDER = 0x18,
};
/* ses-2 common element status */
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index dcaad79f54ed..0adf073f13b3 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -236,7 +236,8 @@ void nlm_rebind_host(struct nlm_host *);
struct nlm_host * nlm_get_host(struct nlm_host *);
void nlm_shutdown_hosts(void);
void nlm_shutdown_hosts_net(struct net *net);
-void nlm_host_rebooted(const struct nlm_reboot *);
+void nlm_host_rebooted(const struct net *net,
+ const struct nlm_reboot *);
/*
* Host monitoring
@@ -244,11 +245,13 @@ void nlm_host_rebooted(const struct nlm_reboot *);
int nsm_monitor(const struct nlm_host *host);
void nsm_unmonitor(const struct nlm_host *host);
-struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
+struct nsm_handle *nsm_get_handle(const struct net *net,
+ const struct sockaddr *sap,
const size_t salen,
const char *hostname,
const size_t hostname_len);
-struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info);
+struct nsm_handle *nsm_reboot_lookup(const struct net *net,
+ const struct nlm_reboot *info);
void nsm_release(struct nsm_handle *nsm);
/*
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 0ae5807480f4..1e122cc9ea3e 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -580,9 +580,7 @@ static inline int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
static inline loff_t nfs_size_to_loff_t(__u64 size)
{
- if (size > (__u64) OFFSET_MAX - 1)
- return OFFSET_MAX - 1;
- return (loff_t) size;
+ return min_t(u64, size, OFFSET_MAX);
}
static inline ino_t
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 7159a0a933df..97c8689c7e51 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -14,8 +14,11 @@
* See the file COPYING for more details.
*/
+#include <linux/smp.h>
#include <linux/errno.h>
#include <linux/types.h>
+#include <linux/percpu.h>
+#include <linux/cpumask.h>
#include <linux/rcupdate.h>
#include <linux/static_key.h>
@@ -126,6 +129,9 @@ static inline void tracepoint_synchronize_unregister(void)
void *it_func; \
void *__data; \
\
+ if (!cpu_online(raw_smp_processor_id())) \
+ return; \
+ \
if (!(cond)) \
return; \
prercu; \
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index e830c3dff61a..7bb69c9c3c43 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -6,8 +6,8 @@
#include <linux/mutex.h>
#include <net/sock.h>
-void unix_inflight(struct file *fp);
-void unix_notinflight(struct file *fp);
+void unix_inflight(struct user_struct *user, struct file *fp);
+void unix_notinflight(struct user_struct *user, struct file *fp);
void unix_gc(void);
void wait_for_unix_gc(void);
struct sock *unix_get_socket(struct file *filp);
diff --git a/include/net/scm.h b/include/net/scm.h
index 262532d111f5..59fa93c01d2a 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -21,6 +21,7 @@ struct scm_creds {
struct scm_fp_list {
short count;
short max;
+ struct user_struct *user;
struct file *fp[SCM_MAX_FD];
};
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index e4b9e011d2a1..42606764d830 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -513,7 +513,7 @@ struct se_cmd {
sense_reason_t (*execute_cmd)(struct se_cmd *);
sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *,
u32, enum dma_data_direction);
- sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool);
+ sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *);
unsigned char *t_task_cdb;
unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ebb8a9e937fa..2c2e5e70e4f3 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1230,6 +1230,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
if (!desc)
return NULL;
+ chip_bus_lock(desc);
raw_spin_lock_irqsave(&desc->lock, flags);
/*
@@ -1243,7 +1244,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
if (!action) {
WARN(1, "Trying to free already-free IRQ %d\n", irq);
raw_spin_unlock_irqrestore(&desc->lock, flags);
-
+ chip_bus_sync_unlock(desc);
return NULL;
}
@@ -1266,6 +1267,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
#endif
raw_spin_unlock_irqrestore(&desc->lock, flags);
+ chip_bus_sync_unlock(desc);
unregister_handler_proc(irq, action);
@@ -1339,9 +1341,7 @@ void free_irq(unsigned int irq, void *dev_id)
desc->affinity_notify = NULL;
#endif
- chip_bus_lock(desc);
kfree(__free_irq(irq, dev_id));
- chip_bus_sync_unlock(desc);
}
EXPORT_SYMBOL(free_irq);
diff --git a/kernel/resource.c b/kernel/resource.c
index 3f285dce9347..449282e48bb1 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -961,9 +961,10 @@ struct resource * __request_region(struct resource *parent,
if (!conflict)
break;
if (conflict != parent) {
- parent = conflict;
- if (!(conflict->flags & IORESOURCE_BUSY))
+ if (!(conflict->flags & IORESOURCE_BUSY)) {
+ parent = conflict;
continue;
+ }
}
if (conflict->flags & flags & IORESOURCE_MUXED) {
add_wait_queue(&muxed_resource_wait, &wait);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bbe957762ace..46afc8cd69dd 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -937,6 +937,13 @@ inline int task_curr(const struct task_struct *p)
return cpu_curr(task_cpu(p)) == p;
}
+/*
+ * switched_from, switched_to and prio_changed must _NOT_ drop rq->lock,
+ * use the balance_callback list if you want balancing.
+ *
+ * this means any call to check_class_changed() must be followed by a call to
+ * balance_callback().
+ */
static inline void check_class_changed(struct rq *rq, struct task_struct *p,
const struct sched_class *prev_class,
int oldprio)
@@ -1423,8 +1430,12 @@ ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags)
p->state = TASK_RUNNING;
#ifdef CONFIG_SMP
- if (p->sched_class->task_woken)
+ if (p->sched_class->task_woken) {
+ /*
+ * XXX can drop rq->lock; most likely ok.
+ */
p->sched_class->task_woken(rq, p);
+ }
if (rq->idle_stamp) {
u64 delta = rq_clock(rq) - rq->idle_stamp;
@@ -1685,7 +1696,6 @@ out:
*/
int wake_up_process(struct task_struct *p)
{
- WARN_ON(task_is_stopped_or_traced(p));
return try_to_wake_up(p, TASK_NORMAL, 0);
}
EXPORT_SYMBOL(wake_up_process);
@@ -2179,18 +2189,30 @@ static inline void pre_schedule(struct rq *rq, struct task_struct *prev)
}
/* rq->lock is NOT held, but preemption is disabled */
-static inline void post_schedule(struct rq *rq)
+static void __balance_callback(struct rq *rq)
{
- if (rq->post_schedule) {
- unsigned long flags;
+ struct callback_head *head, *next;
+ void (*func)(struct rq *rq);
+ unsigned long flags;
- raw_spin_lock_irqsave(&rq->lock, flags);
- if (rq->curr->sched_class->post_schedule)
- rq->curr->sched_class->post_schedule(rq);
- raw_spin_unlock_irqrestore(&rq->lock, flags);
+ raw_spin_lock_irqsave(&rq->lock, flags);
+ head = rq->balance_callback;
+ rq->balance_callback = NULL;
+ while (head) {
+ func = (void (*)(struct rq *))head->func;
+ next = head->next;
+ head->next = NULL;
+ head = next;
- rq->post_schedule = 0;
+ func(rq);
}
+ raw_spin_unlock_irqrestore(&rq->lock, flags);
+}
+
+static inline void balance_callback(struct rq *rq)
+{
+ if (unlikely(rq->balance_callback))
+ __balance_callback(rq);
}
#else
@@ -2199,7 +2221,7 @@ static inline void pre_schedule(struct rq *rq, struct task_struct *p)
{
}
-static inline void post_schedule(struct rq *rq)
+static inline void balance_callback(struct rq *rq)
{
}
@@ -2220,7 +2242,7 @@ asmlinkage void schedule_tail(struct task_struct *prev)
* FIXME: do we need to worry about rq being invalidated by the
* task_switch?
*/
- post_schedule(rq);
+ balance_callback(rq);
#ifdef __ARCH_WANT_UNLOCKED_CTXSW
/* In this case, finish_task_switch does not reenable preemption */
@@ -2732,7 +2754,7 @@ need_resched:
} else
raw_spin_unlock_irq(&rq->lock);
- post_schedule(rq);
+ balance_callback(rq);
sched_preempt_enable_no_resched();
if (need_resched())
@@ -2994,7 +3016,11 @@ void rt_mutex_setprio(struct task_struct *p, int prio)
check_class_changed(rq, p, prev_class, oldprio);
out_unlock:
+ preempt_disable(); /* avoid rq from going away on us */
__task_rq_unlock(rq);
+
+ balance_callback(rq);
+ preempt_enable();
}
#endif
@@ -3500,10 +3526,17 @@ change:
enqueue_task(rq, p, 0);
check_class_changed(rq, p, prev_class, oldprio);
+ preempt_disable(); /* avoid rq from going away on us */
task_rq_unlock(rq, p, &flags);
rt_mutex_adjust_pi(p);
+ /*
+ * Run balance callbacks after we've adjusted the PI chain.
+ */
+ balance_callback(rq);
+ preempt_enable();
+
return 0;
}
@@ -5386,13 +5419,13 @@ static int init_rootdomain(struct root_domain *rd)
{
memset(rd, 0, sizeof(*rd));
- if (!alloc_cpumask_var(&rd->span, GFP_KERNEL))
+ if (!zalloc_cpumask_var(&rd->span, GFP_KERNEL))
goto out;
- if (!alloc_cpumask_var(&rd->online, GFP_KERNEL))
+ if (!zalloc_cpumask_var(&rd->online, GFP_KERNEL))
goto free_span;
- if (!alloc_cpumask_var(&rd->dlo_mask, GFP_KERNEL))
+ if (!zalloc_cpumask_var(&rd->dlo_mask, GFP_KERNEL))
goto free_online;
- if (!alloc_cpumask_var(&rd->rto_mask, GFP_KERNEL))
+ if (!zalloc_cpumask_var(&rd->rto_mask, GFP_KERNEL))
goto free_dlo_mask;
init_dl_bw(&rd->dl_bw);
@@ -6902,7 +6935,7 @@ void __init sched_init(void)
rq->sd = NULL;
rq->rd = NULL;
rq->cpu_power = SCHED_POWER_SCALE;
- rq->post_schedule = 0;
+ rq->balance_callback = NULL;
rq->active_balance = 0;
rq->next_balance = jiffies;
rq->push_cpu = 0;
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 8d3c5ddfdfdd..6ab59bb2947b 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -210,6 +210,25 @@ static inline int has_pushable_dl_tasks(struct rq *rq)
static int push_dl_task(struct rq *rq);
+static DEFINE_PER_CPU(struct callback_head, dl_push_head);
+static DEFINE_PER_CPU(struct callback_head, dl_pull_head);
+
+static void push_dl_tasks(struct rq *);
+static void pull_dl_task(struct rq *);
+
+static inline void queue_push_tasks(struct rq *rq)
+{
+ if (!has_pushable_dl_tasks(rq))
+ return;
+
+ queue_balance_callback(rq, &per_cpu(dl_push_head, rq->cpu), push_dl_tasks);
+}
+
+static inline void queue_pull_task(struct rq *rq)
+{
+ queue_balance_callback(rq, &per_cpu(dl_pull_head, rq->cpu), pull_dl_task);
+}
+
#else
static inline
@@ -232,6 +251,13 @@ void dec_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
{
}
+static inline void queue_push_tasks(struct rq *rq)
+{
+}
+
+static inline void queue_pull_task(struct rq *rq)
+{
+}
#endif /* CONFIG_SMP */
static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags);
@@ -1005,7 +1031,7 @@ struct task_struct *pick_next_task_dl(struct rq *rq)
#endif
#ifdef CONFIG_SMP
- rq->post_schedule = has_pushable_dl_tasks(rq);
+ queue_push_tasks(rq);
#endif /* CONFIG_SMP */
return p;
@@ -1336,15 +1362,16 @@ static void push_dl_tasks(struct rq *rq)
;
}
-static int pull_dl_task(struct rq *this_rq)
+static void pull_dl_task(struct rq *this_rq)
{
- int this_cpu = this_rq->cpu, ret = 0, cpu;
+ int this_cpu = this_rq->cpu, cpu;
struct task_struct *p;
+ bool resched = false;
struct rq *src_rq;
u64 dmin = LONG_MAX;
if (likely(!dl_overloaded(this_rq)))
- return 0;
+ return;
/*
* Match the barrier from dl_set_overloaded; this guarantees that if we
@@ -1399,7 +1426,7 @@ static int pull_dl_task(struct rq *this_rq)
src_rq->curr->dl.deadline))
goto skip;
- ret = 1;
+ resched = true;
deactivate_task(src_rq, p, 0);
set_task_cpu(p, this_cpu);
@@ -1412,7 +1439,8 @@ skip:
double_unlock_balance(this_rq, src_rq);
}
- return ret;
+ if (resched)
+ resched_task(this_rq->curr);
}
static void pre_schedule_dl(struct rq *rq, struct task_struct *prev)
@@ -1422,11 +1450,6 @@ static void pre_schedule_dl(struct rq *rq, struct task_struct *prev)
pull_dl_task(rq);
}
-static void post_schedule_dl(struct rq *rq)
-{
- push_dl_tasks(rq);
-}
-
/*
* Since the task is not running and a reschedule is not going to happen
* anytime soon on its runqueue, we try pushing it away now.
@@ -1529,7 +1552,7 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p)
* from an overloaded cpu, if any.
*/
if (!rq->dl.dl_nr_running)
- pull_dl_task(rq);
+ queue_pull_task(rq);
#endif
}
@@ -1539,8 +1562,6 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p)
*/
static void switched_to_dl(struct rq *rq, struct task_struct *p)
{
- int check_resched = 1;
-
/*
* If p is throttled, don't consider the possibility
* of preempting rq->curr, the check will be done right
@@ -1551,12 +1572,12 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p)
if (p->on_rq || rq->curr != p) {
#ifdef CONFIG_SMP
- if (rq->dl.overloaded && push_dl_task(rq) && rq != task_rq(p))
- /* Only reschedule if pushing failed */
- check_resched = 0;
-#endif /* CONFIG_SMP */
- if (check_resched && task_has_dl_policy(rq->curr))
+ if (rq->dl.overloaded)
+ queue_push_tasks(rq);
+#else
+ if (task_has_dl_policy(rq->curr))
check_preempt_curr_dl(rq, p, 0);
+#endif /* CONFIG_SMP */
}
}
@@ -1576,15 +1597,14 @@ static void prio_changed_dl(struct rq *rq, struct task_struct *p,
* or lowering its prio, so...
*/
if (!rq->dl.overloaded)
- pull_dl_task(rq);
+ queue_pull_task(rq);
/*
* If we now have a earlier deadline task than p,
* then reschedule, provided p is still on this
* runqueue.
*/
- if (dl_time_before(rq->dl.earliest_dl.curr, p->dl.deadline) &&
- rq->curr == p)
+ if (dl_time_before(rq->dl.earliest_dl.curr, p->dl.deadline))
resched_task(p);
#else
/*
@@ -1615,7 +1635,6 @@ const struct sched_class dl_sched_class = {
.rq_online = rq_online_dl,
.rq_offline = rq_offline_dl,
.pre_schedule = pre_schedule_dl,
- .post_schedule = post_schedule_dl,
.task_woken = task_woken_dl,
#endif
diff --git a/kernel/sched/idle_task.c b/kernel/sched/idle_task.c
index 516c3d9ceea1..d08678d38d12 100644
--- a/kernel/sched/idle_task.c
+++ b/kernel/sched/idle_task.c
@@ -19,11 +19,6 @@ static void pre_schedule_idle(struct rq *rq, struct task_struct *prev)
idle_exit_fair(rq);
rq_last_tick_reset(rq);
}
-
-static void post_schedule_idle(struct rq *rq)
-{
- idle_enter_fair(rq);
-}
#endif /* CONFIG_SMP */
/*
* Idle tasks are unconditionally rescheduled:
@@ -37,8 +32,7 @@ static struct task_struct *pick_next_task_idle(struct rq *rq)
{
schedstat_inc(rq, sched_goidle);
#ifdef CONFIG_SMP
- /* Trigger the post schedule to do an idle_enter for CFS */
- rq->post_schedule = 1;
+ idle_enter_fair(rq);
#endif
return rq->idle;
}
@@ -102,7 +96,6 @@ const struct sched_class idle_sched_class = {
#ifdef CONFIG_SMP
.select_task_rq = select_task_rq_idle,
.pre_schedule = pre_schedule_idle,
- .post_schedule = post_schedule_idle,
#endif
.set_curr_task = set_curr_task_idle,
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 27b8e836307f..0fb72ae876e7 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -315,6 +315,25 @@ static inline int has_pushable_tasks(struct rq *rq)
return !plist_head_empty(&rq->rt.pushable_tasks);
}
+static DEFINE_PER_CPU(struct callback_head, rt_push_head);
+static DEFINE_PER_CPU(struct callback_head, rt_pull_head);
+
+static void push_rt_tasks(struct rq *);
+static void pull_rt_task(struct rq *);
+
+static inline void queue_push_tasks(struct rq *rq)
+{
+ if (!has_pushable_tasks(rq))
+ return;
+
+ queue_balance_callback(rq, &per_cpu(rt_push_head, rq->cpu), push_rt_tasks);
+}
+
+static inline void queue_pull_task(struct rq *rq)
+{
+ queue_balance_callback(rq, &per_cpu(rt_pull_head, rq->cpu), pull_rt_task);
+}
+
static void enqueue_pushable_task(struct rq *rq, struct task_struct *p)
{
plist_del(&p->pushable_tasks, &rq->rt.pushable_tasks);
@@ -359,6 +378,9 @@ void dec_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
{
}
+static inline void queue_push_tasks(struct rq *rq)
+{
+}
#endif /* CONFIG_SMP */
static inline int on_rt_rq(struct sched_rt_entity *rt_se)
@@ -1349,11 +1371,7 @@ static struct task_struct *pick_next_task_rt(struct rq *rq)
dequeue_pushable_task(rq, p);
#ifdef CONFIG_SMP
- /*
- * We detect this state here so that we can avoid taking the RQ
- * lock again later if there is no need to push
- */
- rq->post_schedule = has_pushable_tasks(rq);
+ queue_push_tasks(rq);
#endif
return p;
@@ -1641,14 +1659,15 @@ static void push_rt_tasks(struct rq *rq)
;
}
-static int pull_rt_task(struct rq *this_rq)
+static void pull_rt_task(struct rq *this_rq)
{
- int this_cpu = this_rq->cpu, ret = 0, cpu;
+ int this_cpu = this_rq->cpu, cpu;
+ bool resched = false;
struct task_struct *p;
struct rq *src_rq;
if (likely(!rt_overloaded(this_rq)))
- return 0;
+ return;
/*
* Match the barrier from rt_set_overloaded; this guarantees that if we
@@ -1705,7 +1724,7 @@ static int pull_rt_task(struct rq *this_rq)
if (p->prio < src_rq->curr->prio)
goto skip;
- ret = 1;
+ resched = true;
deactivate_task(src_rq, p, 0);
set_task_cpu(p, this_cpu);
@@ -1721,7 +1740,8 @@ skip:
double_unlock_balance(this_rq, src_rq);
}
- return ret;
+ if (resched)
+ resched_task(this_rq->curr);
}
static void pre_schedule_rt(struct rq *rq, struct task_struct *prev)
@@ -1731,11 +1751,6 @@ static void pre_schedule_rt(struct rq *rq, struct task_struct *prev)
pull_rt_task(rq);
}
-static void post_schedule_rt(struct rq *rq)
-{
- push_rt_tasks(rq);
-}
-
/*
* If we are not running and we are not going to reschedule soon, we should
* try to push tasks away now
@@ -1829,8 +1844,7 @@ static void switched_from_rt(struct rq *rq, struct task_struct *p)
if (!p->on_rq || rq->rt.rt_nr_running)
return;
- if (pull_rt_task(rq))
- resched_task(rq->curr);
+ queue_pull_task(rq);
}
void init_sched_rt_class(void)
@@ -1851,8 +1865,6 @@ void init_sched_rt_class(void)
*/
static void switched_to_rt(struct rq *rq, struct task_struct *p)
{
- int check_resched = 1;
-
/*
* If we are already running, then there's nothing
* that needs to be done. But if we are not running
@@ -1862,13 +1874,12 @@ static void switched_to_rt(struct rq *rq, struct task_struct *p)
*/
if (p->on_rq && rq->curr != p) {
#ifdef CONFIG_SMP
- if (rq->rt.overloaded && push_rt_task(rq) &&
- /* Don't resched if we changed runqueues */
- rq != task_rq(p))
- check_resched = 0;
-#endif /* CONFIG_SMP */
- if (check_resched && p->prio < rq->curr->prio)
+ if (rq->rt.overloaded)
+ queue_push_tasks(rq);
+#else
+ if (p->prio < rq->curr->prio)
resched_task(rq->curr);
+#endif /* CONFIG_SMP */
}
}
@@ -1889,14 +1900,13 @@ prio_changed_rt(struct rq *rq, struct task_struct *p, int oldprio)
* may need to pull tasks to this runqueue.
*/
if (oldprio < p->prio)
- pull_rt_task(rq);
+ queue_pull_task(rq);
+
/*
* If there's a higher priority task waiting to run
- * then reschedule. Note, the above pull_rt_task
- * can release the rq lock and p could migrate.
- * Only reschedule if p is still on the same runqueue.
+ * then reschedule.
*/
- if (p->prio > rq->rt.highest_prio.curr && rq->curr == p)
+ if (p->prio > rq->rt.highest_prio.curr)
resched_task(p);
#else
/* For UP simply resched on drop of prio */
@@ -2008,7 +2018,6 @@ const struct sched_class rt_sched_class = {
.rq_online = rq_online_rt,
.rq_offline = rq_offline_rt,
.pre_schedule = pre_schedule_rt,
- .post_schedule = post_schedule_rt,
.task_woken = task_woken_rt,
.switched_from = switched_from_rt,
#endif
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 835b6efa8bd6..675e147a86f2 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -587,9 +587,10 @@ struct rq {
unsigned long cpu_power;
+ struct callback_head *balance_callback;
+
unsigned char idle_balance;
/* For active balancing */
- int post_schedule;
int active_balance;
int push_cpu;
struct cpu_stop_work active_balance_work;
@@ -690,6 +691,21 @@ extern int migrate_swap(struct task_struct *, struct task_struct *);
#ifdef CONFIG_SMP
+static inline void
+queue_balance_callback(struct rq *rq,
+ struct callback_head *head,
+ void (*func)(struct rq *rq))
+{
+ lockdep_assert_held(&rq->lock);
+
+ if (unlikely(head->next))
+ return;
+
+ head->func = (void (*)(struct callback_head *))func;
+ head->next = rq->balance_callback;
+ rq->balance_callback = head;
+}
+
#define rcu_dereference_check_sched_domain(p) \
rcu_dereference_check((p), \
lockdep_is_held(&sched_domains_mutex))
@@ -1131,7 +1147,6 @@ struct sched_class {
void (*migrate_task_rq)(struct task_struct *p, int next_cpu);
void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
- void (*post_schedule) (struct rq *this_rq);
void (*task_waking) (struct task_struct *task);
void (*task_woken) (struct rq *this_rq, struct task_struct *task);
diff --git a/kernel/time/posix-clock.c b/kernel/time/posix-clock.c
index ce033c7aa2e8..9cff0ab82b63 100644
--- a/kernel/time/posix-clock.c
+++ b/kernel/time/posix-clock.c
@@ -69,10 +69,10 @@ static ssize_t posix_clock_read(struct file *fp, char __user *buf,
static unsigned int posix_clock_poll(struct file *fp, poll_table *wait)
{
struct posix_clock *clk = get_posix_clock(fp);
- int result = 0;
+ unsigned int result = 0;
if (!clk)
- return -ENODEV;
+ return POLLERR;
if (clk->ops.poll)
result = clk->ops.poll(clk, fp, wait);
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index da41de9dc319..c798ed2fc281 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1949,12 +1949,6 @@ rb_set_commit_to_write(struct ring_buffer_per_cpu *cpu_buffer)
goto again;
}
-static void rb_reset_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
-{
- cpu_buffer->read_stamp = cpu_buffer->reader_page->page->time_stamp;
- cpu_buffer->reader_page->read = 0;
-}
-
static void rb_inc_iter(struct ring_buffer_iter *iter)
{
struct ring_buffer_per_cpu *cpu_buffer = iter->cpu_buffer;
@@ -3592,7 +3586,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
/* Finally update the reader page to the new head */
cpu_buffer->reader_page = reader;
- rb_reset_reader_page(cpu_buffer);
+ cpu_buffer->reader_page->read = 0;
if (overwrite != cpu_buffer->last_overrun) {
cpu_buffer->lost_events = overwrite - cpu_buffer->last_overrun;
@@ -3602,6 +3596,10 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
goto again;
out:
+ /* Update the read_stamp on the first event */
+ if (reader && reader->read == 0)
+ cpu_buffer->read_stamp = reader->page->time_stamp;
+
arch_spin_unlock(&cpu_buffer->lock);
local_irq_restore(flags);
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index c6646a58d23e..bb1ac9cbe30a 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -606,7 +606,8 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
* The ftrace subsystem is for showing formats only.
* They can not be enabled or disabled via the event files.
*/
- if (call->class && call->class->reg)
+ if (call->class && call->class->reg &&
+ !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE))
return file;
}
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 646a8b81bee1..423c9e37a9e7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1475,13 +1475,13 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq,
timer_stats_timer_set_start_info(&dwork->timer);
dwork->wq = wq;
- /* timer isn't guaranteed to run in this cpu, record earlier */
- if (cpu == WORK_CPU_UNBOUND)
- cpu = raw_smp_processor_id();
dwork->cpu = cpu;
timer->expires = jiffies + delay;
- add_timer_on(timer, cpu);
+ if (unlikely(cpu != WORK_CPU_UNBOUND))
+ add_timer_on(timer, cpu);
+ else
+ add_timer(timer);
}
/**
diff --git a/lib/devres.c b/lib/devres.c
index 823533138fa0..20afaf181b27 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -423,7 +423,7 @@ void pcim_iounmap_regions(struct pci_dev *pdev, int mask)
if (!iomap)
return;
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ for (i = 0; i < PCIM_IOMAP_MAX; i++) {
if (!(mask & (1 << i)))
continue;
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 2e87eecec8f6..04dd542697a7 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -2279,7 +2279,7 @@ static int read_partial_message(struct ceph_connection *con)
con->in_base_pos = -front_len - middle_len - data_len -
sizeof(m->footer);
con->in_tag = CEPH_MSGR_TAG_READY;
- return 0;
+ return 1;
} else if ((s64)seq - (s64)con->in_seq > 1) {
pr_err("read_partial_message bad seq %lld expected %lld\n",
seq, con->in_seq + 1);
@@ -2312,7 +2312,7 @@ static int read_partial_message(struct ceph_connection *con)
sizeof(m->footer);
con->in_tag = CEPH_MSGR_TAG_READY;
con->in_seq++;
- return 0;
+ return 1;
}
BUG_ON(!con->in_msg);
diff --git a/net/core/scm.c b/net/core/scm.c
index d30eb057fa7b..cad57a1390dd 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -87,6 +87,7 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
*fplp = fpl;
fpl->count = 0;
fpl->max = SCM_MAX_FD;
+ fpl->user = NULL;
}
fpp = &fpl->fp[fpl->count];
@@ -107,6 +108,10 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
*fpp++ = file;
fpl->count++;
}
+
+ if (!fpl->user)
+ fpl->user = get_uid(current_user());
+
return num;
}
@@ -119,6 +124,7 @@ void __scm_destroy(struct scm_cookie *scm)
scm->fp = NULL;
for (i=fpl->count-1; i>=0; i--)
fput(fpl->fp[i]);
+ free_uid(fpl->user);
kfree(fpl);
}
}
@@ -337,6 +343,7 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl)
for (i = 0; i < fpl->count; i++)
get_file(fpl->fp[i]);
new_fpl->max = new_fpl->count;
+ new_fpl->user = get_uid(fpl->user);
}
return new_fpl;
}
diff --git a/net/ipv4/netfilter/ipt_rpfilter.c b/net/ipv4/netfilter/ipt_rpfilter.c
index c49dcd0284a0..56dd8ac6d28b 100644
--- a/net/ipv4/netfilter/ipt_rpfilter.c
+++ b/net/ipv4/netfilter/ipt_rpfilter.c
@@ -61,9 +61,7 @@ static bool rpfilter_lookup_reverse(struct flowi4 *fl4,
if (FIB_RES_DEV(res) == dev)
dev_match = true;
#endif
- if (dev_match || flags & XT_RPFILTER_LOOSE)
- return FIB_RES_NH(res).nh_scope <= RT_SCOPE_HOST;
- return dev_match;
+ return dev_match || flags & XT_RPFILTER_LOOSE;
}
static bool rpfilter_is_local(const struct sk_buff *skb)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3f0ec063d7f8..7b74fca4d850 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4793,6 +4793,21 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
return ret;
}
+static
+int addrconf_sysctl_mtu(struct ctl_table *ctl, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ struct inet6_dev *idev = ctl->extra1;
+ int min_mtu = IPV6_MIN_MTU;
+ struct ctl_table lctl;
+
+ lctl = *ctl;
+ lctl.extra1 = &min_mtu;
+ lctl.extra2 = idev ? &idev->dev->mtu : NULL;
+
+ return proc_dointvec_minmax(&lctl, write, buffer, lenp, ppos);
+}
+
static void dev_disable_change(struct inet6_dev *idev)
{
struct netdev_notifier_info info;
@@ -4944,7 +4959,7 @@ static struct addrconf_sysctl_table
.data = &ipv6_devconf.mtu6,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = addrconf_sysctl_mtu,
},
{
.procname = "accept_ra",
diff --git a/net/ipv6/netfilter/ip6t_SYNPROXY.c b/net/ipv6/netfilter/ip6t_SYNPROXY.c
index a0d17270117c..bd174540eb21 100644
--- a/net/ipv6/netfilter/ip6t_SYNPROXY.c
+++ b/net/ipv6/netfilter/ip6t_SYNPROXY.c
@@ -37,12 +37,13 @@ synproxy_build_ip(struct sk_buff *skb, const struct in6_addr *saddr,
}
static void
-synproxy_send_tcp(const struct sk_buff *skb, struct sk_buff *nskb,
+synproxy_send_tcp(const struct synproxy_net *snet,
+ const struct sk_buff *skb, struct sk_buff *nskb,
struct nf_conntrack *nfct, enum ip_conntrack_info ctinfo,
struct ipv6hdr *niph, struct tcphdr *nth,
unsigned int tcp_hdr_size)
{
- struct net *net = nf_ct_net((struct nf_conn *)nfct);
+ struct net *net = nf_ct_net(snet->tmpl);
struct dst_entry *dst;
struct flowi6 fl6;
@@ -83,7 +84,8 @@ free_nskb:
}
static void
-synproxy_send_client_synack(const struct sk_buff *skb, const struct tcphdr *th,
+synproxy_send_client_synack(const struct synproxy_net *snet,
+ const struct sk_buff *skb, const struct tcphdr *th,
const struct synproxy_options *opts)
{
struct sk_buff *nskb;
@@ -119,7 +121,7 @@ synproxy_send_client_synack(const struct sk_buff *skb, const struct tcphdr *th,
synproxy_build_options(nth, opts);
- synproxy_send_tcp(skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY,
+ synproxy_send_tcp(snet, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY,
niph, nth, tcp_hdr_size);
}
@@ -163,7 +165,7 @@ synproxy_send_server_syn(const struct synproxy_net *snet,
synproxy_build_options(nth, opts);
- synproxy_send_tcp(skb, nskb, &snet->tmpl->ct_general, IP_CT_NEW,
+ synproxy_send_tcp(snet, skb, nskb, &snet->tmpl->ct_general, IP_CT_NEW,
niph, nth, tcp_hdr_size);
}
@@ -203,7 +205,7 @@ synproxy_send_server_ack(const struct synproxy_net *snet,
synproxy_build_options(nth, opts);
- synproxy_send_tcp(skb, nskb, NULL, 0, niph, nth, tcp_hdr_size);
+ synproxy_send_tcp(snet, skb, nskb, NULL, 0, niph, nth, tcp_hdr_size);
}
static void
@@ -241,7 +243,7 @@ synproxy_send_client_ack(const struct synproxy_net *snet,
synproxy_build_options(nth, opts);
- synproxy_send_tcp(skb, nskb, NULL, 0, niph, nth, tcp_hdr_size);
+ synproxy_send_tcp(snet, skb, nskb, NULL, 0, niph, nth, tcp_hdr_size);
}
static bool
@@ -301,7 +303,7 @@ synproxy_tg6(struct sk_buff *skb, const struct xt_action_param *par)
XT_SYNPROXY_OPT_SACK_PERM |
XT_SYNPROXY_OPT_ECN);
- synproxy_send_client_synack(skb, th, &opts);
+ synproxy_send_client_synack(snet, skb, th, &opts);
return NF_DROP;
} else if (th->ack && !(th->fin || th->rst || th->syn)) {
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 7d050ed6fe5a..6d28bd434ce8 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -746,10 +746,8 @@ void mesh_plink_broken(struct sta_info *sta)
static void mesh_path_node_reclaim(struct rcu_head *rp)
{
struct mpath_node *node = container_of(rp, struct mpath_node, rcu);
- struct ieee80211_sub_if_data *sdata = node->mpath->sdata;
del_timer_sync(&node->mpath->timer);
- atomic_dec(&sdata->u.mesh.mpaths);
kfree(node->mpath);
kfree(node);
}
@@ -757,8 +755,9 @@ static void mesh_path_node_reclaim(struct rcu_head *rp)
/* needs to be called with the corresponding hashwlock taken */
static void __mesh_path_del(struct mesh_table *tbl, struct mpath_node *node)
{
- struct mesh_path *mpath;
- mpath = node->mpath;
+ struct mesh_path *mpath = node->mpath;
+ struct ieee80211_sub_if_data *sdata = node->mpath->sdata;
+
spin_lock(&mpath->state_lock);
mpath->flags |= MESH_PATH_RESOLVING;
if (mpath->is_gate)
@@ -766,6 +765,7 @@ static void __mesh_path_del(struct mesh_table *tbl, struct mpath_node *node)
hlist_del_rcu(&node->list);
call_rcu(&node->rcu, mesh_path_node_reclaim);
spin_unlock(&mpath->state_lock);
+ atomic_dec(&sdata->u.mesh.mpaths);
atomic_dec(&tbl->entries);
}
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 99de2409f731..4e8d90b8fc01 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3316,9 +3316,9 @@ EXPORT_SYMBOL_GPL(nft_data_init);
*/
void nft_data_uninit(const struct nft_data *data, enum nft_data_types type)
{
- switch (type) {
- case NFT_DATA_VALUE:
+ if (type < NFT_DATA_VERDICT)
return;
+ switch (type) {
case NFT_DATA_VERDICT:
return nft_verdict_uninit(data);
default:
diff --git a/net/rds/send.c b/net/rds/send.c
index a82fb660ec00..44222c0607c7 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -955,11 +955,13 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
release_sock(sk);
}
- /* racing with another thread binding seems ok here */
+ lock_sock(sk);
if (daddr == 0 || rs->rs_bound_addr == 0) {
+ release_sock(sk);
ret = -ENOTCONN; /* XXX not a great errno */
goto out;
}
+ release_sock(sk);
/* size of rm including all sgs */
ret = rds_rm_size(msg, payload_len);
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index ed7e0b4e7f90..4b9dc2460772 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -49,7 +49,6 @@
struct rfkill {
spinlock_t lock;
- const char *name;
enum rfkill_type type;
unsigned long state;
@@ -73,6 +72,7 @@ struct rfkill {
struct delayed_work poll_work;
struct work_struct uevent_work;
struct work_struct sync_work;
+ char name[];
};
#define to_rfkill(d) container_of(d, struct rfkill, dev)
@@ -861,14 +861,14 @@ struct rfkill * __must_check rfkill_alloc(const char *name,
if (WARN_ON(type == RFKILL_TYPE_ALL || type >= NUM_RFKILL_TYPES))
return NULL;
- rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
+ rfkill = kzalloc(sizeof(*rfkill) + strlen(name) + 1, GFP_KERNEL);
if (!rfkill)
return NULL;
spin_lock_init(&rfkill->lock);
INIT_LIST_HEAD(&rfkill->node);
rfkill->type = type;
- rfkill->name = name;
+ strcpy(rfkill->name, name);
rfkill->ops = ops;
rfkill->data = ops_data;
@@ -1078,17 +1078,6 @@ static unsigned int rfkill_fop_poll(struct file *file, poll_table *wait)
return res;
}
-static bool rfkill_readable(struct rfkill_data *data)
-{
- bool r;
-
- mutex_lock(&data->mtx);
- r = !list_empty(&data->events);
- mutex_unlock(&data->mtx);
-
- return r;
-}
-
static ssize_t rfkill_fop_read(struct file *file, char __user *buf,
size_t count, loff_t *pos)
{
@@ -1105,8 +1094,11 @@ static ssize_t rfkill_fop_read(struct file *file, char __user *buf,
goto out;
}
mutex_unlock(&data->mtx);
+ /* since we re-check and it just compares pointers,
+ * using !list_empty() without locking isn't a problem
+ */
ret = wait_event_interruptible(data->read_wait,
- rfkill_readable(data));
+ !list_empty(&data->events));
mutex_lock(&data->mtx);
if (ret)
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 0adc66caae2f..07edbcd8697e 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1230,7 +1230,7 @@ int qword_get(char **bpp, char *dest, int bufsize)
if (bp[0] == '\\' && bp[1] == 'x') {
/* HEX STRING */
bp += 2;
- while (len < bufsize) {
+ while (len < bufsize - 1) {
int h, l;
h = hex_to_bin(bp[0]);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 0cd18c240250..ab2eeb1cb32c 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1469,7 +1469,7 @@ static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
UNIXCB(skb).fp = NULL;
for (i = scm->fp->count-1; i >= 0; i--)
- unix_notinflight(scm->fp->fp[i]);
+ unix_notinflight(scm->fp->user, scm->fp->fp[i]);
}
static void unix_destruct_scm(struct sk_buff *skb)
@@ -1534,7 +1534,7 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
return -ENOMEM;
for (i = scm->fp->count - 1; i >= 0; i--)
- unix_inflight(scm->fp->fp[i]);
+ unix_inflight(scm->fp->user, scm->fp->fp[i]);
return max_level;
}
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 06730fe6ad9d..a72182d6750f 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -122,7 +122,7 @@ struct sock *unix_get_socket(struct file *filp)
* descriptor if it is for an AF_UNIX socket.
*/
-void unix_inflight(struct file *fp)
+void unix_inflight(struct user_struct *user, struct file *fp)
{
struct sock *s = unix_get_socket(fp);
@@ -139,11 +139,11 @@ void unix_inflight(struct file *fp)
}
unix_tot_inflight++;
}
- fp->f_cred->user->unix_inflight++;
+ user->unix_inflight++;
spin_unlock(&unix_gc_lock);
}
-void unix_notinflight(struct file *fp)
+void unix_notinflight(struct user_struct *user, struct file *fp)
{
struct sock *s = unix_get_socket(fp);
@@ -157,7 +157,7 @@ void unix_notinflight(struct file *fp)
list_del_init(&u->link);
unix_tot_inflight--;
}
- fp->f_cred->user->unix_inflight--;
+ user->unix_inflight--;
spin_unlock(&unix_gc_lock);
}
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 9c22317778eb..ee625e3a56ba 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -189,6 +189,20 @@ static void *mmap_file(char const *fname)
addr = umalloc(sb.st_size);
uread(fd_map, addr, sb.st_size);
}
+ if (sb.st_nlink != 1) {
+ /* file is hard-linked, break the hard link */
+ close(fd_map);
+ if (unlink(fname) < 0) {
+ perror(fname);
+ fail_file();
+ }
+ fd_map = open(fname, O_RDWR | O_CREAT, sb.st_mode);
+ if (fd_map < 0) {
+ perror(fname);
+ fail_file();
+ }
+ uwrite(fd_map, addr, sb.st_size);
+ }
return addr;
}
diff --git a/tools/Makefile b/tools/Makefile
index feec3ad5fd09..6e8ac8982149 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -24,6 +24,10 @@ help:
@echo ' from the kernel command line to build and install one of'
@echo ' the tools above'
@echo ''
+ @echo ' $$ make tools/all'
+ @echo ''
+ @echo ' builds all tools.'
+ @echo ''
@echo ' $$ make tools/install'
@echo ''
@echo ' installs all tools.'
@@ -58,6 +62,11 @@ turbostat x86_energy_perf_policy: FORCE
tmon: FORCE
$(call descend,thermal/$@)
+all: acpi cgroup cpupower firewire lguest \
+ perf selftests turbostat usb \
+ virtio vm net x86_energy_perf_policy \
+ tmon
+
acpi_install:
$(call descend,power/$(@:_install=),install)
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index f2c80d5451c3..919095029528 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -152,7 +152,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,
* do alloc nowait since if we are going to sleep anyway we
* may as well sleep faulting in page
*/
- work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT);
+ work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT | __GFP_NOWARN);
if (!work)
return 0;
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