David Rientjes 022a41db8a mm, show_mem: suppress page counts in non-blockable contexts ... commit 4b59e6c473 upstream. On large systems with a lot of memory, walking all RAM to determine page types may take a half second or even more. In non-blockable contexts, the page allocator will emit a page allocation failure warning unless __GFP_NOWARN is specified. In such contexts, irqs are typically disabled and such a lengthy delay may even result in NMI watchdog timeouts. To fix this, suppress the page walk in such contexts when printing the page allocation failure warning. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mgorman@suse.de> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Xishi Qiu <qiuxishi@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-10-13 15:42:49 -07:00
..
backing-dev.c
bootmem.c	mm: sparse: fix usemap allocation above node descriptor section	2012-10-02 10:30:36 -07:00
bounce.c
cleancache.c
compaction.c	mm: compaction: fix echo 1 > compact_memory return error issue	2013-01-17 08:50:43 -08:00
debug-pagealloc.c
dmapool.c	mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls	2012-12-17 10:37:44 -08:00
fadvise.c	mm/fadvise.c: drain all pagevecs if POSIX_FADV_DONTNEED fails to discard all pages	2013-02-28 06:59:01 -08:00
failslab.c
filemap.c	radix-tree: use iterators in find_get_pages* functions	2012-03-28 17:14:37 -07:00
filemap_xip.c
fremap.c
highmem.c
huge_memory.c	mm/huge_memory.c: fix potential NULL pointer dereference	2013-09-26 17:15:51 -07:00
hugetlb.c	futex: Take hugepages into account when generating futex_key	2013-08-20 08:26:28 -07:00
hwpoison-inject.c
init-mm.c
internal.h
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c
madvise.c	mm: Hold a file reference in madvise_remove	2012-07-16 09:04:43 -07:00
Makefile
memblock.c	x86, mm: Trim memory in memblock to be page aligned	2012-10-31 10:02:56 -07:00
memcontrol.c	memcg: fix multiple large threshold notifications	2013-09-26 17:15:50 -07:00
memory-failure.c	mm: soft offline: split thp at the beginning of soft_offline_page()	2012-12-10 10:59:39 -08:00
memory.c	vm: add vm_iomap_memory() helper function	2013-04-25 21:19:56 -07:00
memory_hotplug.c	memory hotplug: fix section info double registration bug	2012-10-02 10:30:06 -07:00
mempolicy.c	tmpfs mempolicy: fix /proc/mounts corrupting memory	2013-01-11 09:06:49 -08:00
mempool.c
migrate.c	mm: migration: add migrate_entry_wait_huge()	2013-06-20 11:58:46 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c	hugetlbfs: fix mmap failure in unaligned size request	2013-05-19 10:54:48 -07:00
mmu_context.c
mmu_notifier.c	mm: mmu_notifier: re-fix freed page still mapped in secondary MMU	2013-06-07 12:49:25 -07:00
mmzone.c
mprotect.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-03-22 09:04:48 -07:00
mremap.c
msync.c
nobootmem.c	memblock: free allocated memblock_reserved_regions later	2012-07-16 09:04:45 -07:00
nommu.c	vm: add no-mmu vm_iomap_memory() stub	2013-08-20 08:26:27 -07:00
oom_kill.c	mm, memcg: give exiting processes access to memory reserves	2013-10-05 07:06:54 -07:00
page-writeback.c	mm: fix calculation of dirtyable memory	2013-01-11 09:06:48 -08:00
page_alloc.c	mm, show_mem: suppress page counts in non-blockable contexts	2013-10-13 15:42:49 -07:00
page_cgroup.c
page_io.c
page_isolation.c
pagewalk.c	mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas	2013-06-07 12:49:28 -07:00
percpu-km.c
percpu-vm.c
percpu.c	kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP	2012-05-09 10:13:29 -07:00
pgtable-generic.c	thp: add HPAGE_PMD_* definitions for !CONFIG_TRANSPARENT_HUGEPAGE	2012-03-21 17:55:02 -07:00
prio_tree.c
process_vm_access.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-14 11:29:51 -07:00
quicklist.c
readahead.c
rmap.c	mm: fix XFS oops due to dirty pages without buffers on s390	2012-10-31 10:02:56 -07:00
shmem.c	tmpfs: fix use-after-free of mempolicy object	2013-02-28 06:59:01 -08:00
slab.c	slab: fix the DEADLOCK issue on l3 alien lock	2012-10-13 05:38:37 +09:00
slob.c
slub.c	slub: fix a memory leak in get_partial_node()	2012-06-10 00:36:11 +09:00
sparse-vmemmap.c
sparse.c	mm/vmemmap: fix wrong use of virt_to_page	2012-12-10 10:59:39 -08:00
swap.c
swap_state.c	swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion	2013-06-20 11:58:45 -07:00
swapfile.c	swap: fix shmem swapping when more than 8 areas	2012-06-22 11:36:55 -07:00
thrash.c
truncate.c	mm: fix invalidate_complete_page2() lock ordering	2012-10-13 05:38:51 +09:00
util.c
vmalloc.c	mm: fix faulty initialization in vmalloc_init()	2012-06-10 00:36:06 +09:00
vmscan.c	mm: bugfix: set current->reclaim_state to NULL while returning from kswapd()	2012-11-26 11:37:19 -08:00
vmstat.c	mm: fix up the vmscan stat in vmstat	2012-04-25 21:26:33 -07:00