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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-07 14:32:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-07 14:32:45 -0800
commitad804a0b2a769a0eed29015c53fe395449c09d13 (patch)
tree3f96dd15fe24705cd8244bdb8fb81a7195f6ea04 /arch
parentab9f2faf8f40604551336e5b0a18e0910a57b92c (diff)
parent5f2a2d5d423d5337a1392fa016ec23a8a4206006 (diff)
Merge branch 'akpm' (patches from Andrew)
Merge second patch-bomb from Andrew Morton: - most of the rest of MM - procfs - lib/ updates - printk updates - bitops infrastructure tweaks - checkpatch updates - nilfs2 update - signals - various other misc bits: coredump, seqfile, kexec, pidns, zlib, ipc, dma-debug, dma-mapping, ... * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (102 commits) ipc,msg: drop dst nil validation in copy_msg include/linux/zutil.h: fix usage example of zlib_adler32() panic: release stale console lock to always get the logbuf printed out dma-debug: check nents in dma_sync_sg* dma-mapping: tidy up dma_parms default handling pidns: fix set/getpriority and ioprio_set/get in PRIO_USER mode kexec: use file name as the output message prefix fs, seqfile: always allow oom killer seq_file: reuse string_escape_str() fs/seq_file: use seq_* helpers in seq_hex_dump() coredump: change zap_threads() and zap_process() to use for_each_thread() coredump: ensure all coredumping tasks have SIGNAL_GROUP_COREDUMP signal: remove jffs2_garbage_collect_thread()->allow_signal(SIGCONT) signal: introduce kernel_signal_stop() to fix jffs2_garbage_collect_thread() signal: turn dequeue_signal_lock() into kernel_dequeue_signal() signals: kill block_all_signals() and unblock_all_signals() nilfs2: fix gcc uninitialized-variable warnings in powerpc build nilfs2: fix gcc unused-but-set-variable warnings MAINTAINERS: nilfs2: add header file for tracing nilfs2: add tracepoints for analyzing reading and writing metadata files ...
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mm/dma-mapping.c6
-rw-r--r--arch/arm/xen/mm.c2
-rw-r--r--arch/arm64/mm/dma-mapping.c4
-rw-r--r--arch/sh/kernel/cpu/sh5/unwind.c2
-rw-r--r--arch/sh/kernel/traps_64.c2
-rw-r--r--arch/x86/kernel/cpu/perf_event_msr.c7
-rw-r--r--arch/x86/kernel/pci-dma.c2
-rw-r--r--arch/xtensa/configs/iss_defconfig1
8 files changed, 12 insertions, 14 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ad4eb2d26e16..e62400e5fb99 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -651,12 +651,12 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
if (nommu())
addr = __alloc_simple_buffer(dev, size, gfp, &page);
- else if (dev_get_cma_area(dev) && (gfp & __GFP_WAIT))
+ else if (dev_get_cma_area(dev) && (gfp & __GFP_DIRECT_RECLAIM))
addr = __alloc_from_contiguous(dev, size, prot, &page,
caller, want_vaddr);
else if (is_coherent)
addr = __alloc_simple_buffer(dev, size, gfp, &page);
- else if (!(gfp & __GFP_WAIT))
+ else if (!gfpflags_allow_blocking(gfp))
addr = __alloc_from_pool(size, &page);
else
addr = __alloc_remap_buffer(dev, size, gfp, prot, &page,
@@ -1363,7 +1363,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size,
*handle = DMA_ERROR_CODE;
size = PAGE_ALIGN(size);
- if (!(gfp & __GFP_WAIT))
+ if (!gfpflags_allow_blocking(gfp))
return __iommu_alloc_atomic(dev, size, handle);
/*
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index 7c34f7126b04..c5f9a9e3d1f3 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -25,7 +25,7 @@
unsigned long xen_get_swiotlb_free_pages(unsigned int order)
{
struct memblock_region *reg;
- gfp_t flags = __GFP_NOWARN;
+ gfp_t flags = __GFP_NOWARN|__GFP_KSWAPD_RECLAIM;
for_each_memblock(memory, reg) {
if (reg->base < (phys_addr_t)0xffffffff) {
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 6320361d8d4c..bb4bf6a06ad6 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -100,7 +100,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
if (IS_ENABLED(CONFIG_ZONE_DMA) &&
dev->coherent_dma_mask <= DMA_BIT_MASK(32))
flags |= GFP_DMA;
- if (dev_get_cma_area(dev) && (flags & __GFP_WAIT)) {
+ if (dev_get_cma_area(dev) && gfpflags_allow_blocking(flags)) {
struct page *page;
void *addr;
@@ -148,7 +148,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
size = PAGE_ALIGN(size);
- if (!coherent && !(flags & __GFP_WAIT)) {
+ if (!coherent && !gfpflags_allow_blocking(flags)) {
struct page *page = NULL;
void *addr = __alloc_from_pool(size, &page, flags);
diff --git a/arch/sh/kernel/cpu/sh5/unwind.c b/arch/sh/kernel/cpu/sh5/unwind.c
index 10aed41757fc..3a4fed406fc6 100644
--- a/arch/sh/kernel/cpu/sh5/unwind.c
+++ b/arch/sh/kernel/cpu/sh5/unwind.c
@@ -159,7 +159,7 @@ static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc,
/* Sign extend */
regcache[dest] =
- ((((s64)(u64)op >> 10) & 0xffff) << 54) >> 54;
+ sign_extend64((((u64)op >> 10) & 0xffff), 9);
break;
case (0xd0 >> 2): /* addi */
case (0xd4 >> 2): /* addi.l */
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index 112ea11c030d..d208c27ccc67 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -101,7 +101,7 @@ static int generate_and_check_address(struct pt_regs *regs,
if (displacement_not_indexed) {
__s64 displacement;
displacement = (opcode >> 10) & 0x3ff;
- displacement = ((displacement << 54) >> 54); /* sign extend */
+ displacement = sign_extend64(displacement, 9);
addr = (__u64)((__s64)base_address + (displacement << width_shift));
} else {
__u64 offset;
diff --git a/arch/x86/kernel/cpu/perf_event_msr.c b/arch/x86/kernel/cpu/perf_event_msr.c
index f32ac13934f2..ec863b9a9f78 100644
--- a/arch/x86/kernel/cpu/perf_event_msr.c
+++ b/arch/x86/kernel/cpu/perf_event_msr.c
@@ -163,10 +163,9 @@ again:
goto again;
delta = now - prev;
- if (unlikely(event->hw.event_base == MSR_SMI_COUNT)) {
- delta <<= 32;
- delta >>= 32; /* sign extend */
- }
+ if (unlikely(event->hw.event_base == MSR_SMI_COUNT))
+ delta = sign_extend64(delta, 31);
+
local64_add(now - prev, &event->count);
}
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index cd99433b8ba1..6ba014c61d62 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -90,7 +90,7 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
again:
page = NULL;
/* CMA can be used only in the context which permits sleeping */
- if (flag & __GFP_WAIT) {
+ if (gfpflags_allow_blocking(flag)) {
page = dma_alloc_from_contiguous(dev, count, get_order(size));
if (page && page_to_phys(page) + size > dma_mask) {
dma_release_from_contiguous(dev, page, count);
diff --git a/arch/xtensa/configs/iss_defconfig b/arch/xtensa/configs/iss_defconfig
index f3dfe0d921c2..44c6764d9146 100644
--- a/arch/xtensa/configs/iss_defconfig
+++ b/arch/xtensa/configs/iss_defconfig
@@ -169,7 +169,6 @@ CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
-CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1