Andrea Arcangeli 99a1300e1d thp: avoid VM_BUG_ON page_count(page) false positives in __collapse_huge_page_copy ... Speculative cache pagecache lookups can elevate the refcount from under us, so avoid the false positive. If the refcount is < 2 we'll be notified by a VM_BUG_ON in put_page_testzero as there are two put_page(src_page) in a row before returning from this function. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Petr Holasek <pholasek@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-09-28 08:38:09 -07:00
..
backing-dev.c	vfs: kill write_super and sync_supers	2012-08-04 01:24:44 +04:00
bootmem.c	bootmem: make ___alloc_bootmem_node_nopanic() really nopanic	2012-07-17 16:21:29 -07:00
bounce.c	bounce: allow use of bounce pool via config option	2012-07-18 16:40:35 -04:00
cleancache.c	->encode_fh() API change	2012-05-29 23:28:33 -04:00
compaction.c	mm: compaction: Abort async compaction if locks are contended or taking too long	2012-08-21 16:45:03 -07:00
debug-pagealloc.c	mm, x86: Remove debug_pagealloc_enabled	2011-12-06 09:24:07 +01:00
dmapool.c	mm: fix implicit stat.h usage in dmapool.c	2011-10-31 09:20:12 -04:00
fadvise.c	mm, fadvise: don't return -EINVAL when filesystem cannot implement fadvise()	2012-07-31 18:42:42 -07:00
failslab.c	switch debugfs to umode_t	2012-01-03 22:54:56 -05:00
filemap_xip.c	fs: Protect write paths by sb_start_write - sb_end_write	2012-07-31 09:45:47 +04:00
filemap.c	block: move down direct IO plugging	2012-08-09 15:23:09 +02:00
fremap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
frontswap.c	mm/frontswap: cleanup doc and comment error	2012-07-23 11:16:20 -04:00
highmem.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
huge_memory.c	thp: avoid VM_BUG_ON page_count(page) false positives in __collapse_huge_page_copy	2012-09-28 08:38:09 -07:00
hugetlb_cgroup.c	hugetlb/cgroup: remove exclude and wakeup rmdir calls from migrate	2012-07-31 18:42:41 -07:00
hugetlb.c	mm: hugetlbfs: close race during teardown of hugetlbfs shared page tables	2012-07-31 18:42:50 -07:00
hwpoison-inject.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h	mm: compaction: Abort async compaction if locks are contended or taking too long	2012-08-21 16:45:03 -07:00
Kconfig	mm: factor out memory isolate functions	2012-07-31 18:42:45 -07:00
Kconfig.debug	mm: more intensive memory corruption debugging	2012-01-10 16:30:42 -08:00
kmemcheck.c
kmemleak-test.c
kmemleak.c	kmemleak: Disable early logging when kmemleak is off by default	2012-01-20 16:57:05 +00:00
ksm.c	ksm: cleanup: introduce find_mergeable_vma()	2012-03-21 17:54:59 -07:00
maccess.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
madvise.c	mm: Hold a file reference in madvise_remove	2012-07-06 10:34:38 -07:00
Makefile	mm: factor out memory isolate functions	2012-07-31 18:42:45 -07:00
memblock.c	mm/memblock: Use NULL instead of 0 for pointers	2012-09-05 08:32:30 +02:00
memcontrol.c	memcg: add mem_cgroup_from_css() helper	2012-07-31 18:42:49 -07:00
memory_hotplug.c	memory hotplug: fix section info double registration bug	2012-09-17 15:00:38 -07:00
memory-failure.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
memory.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-08-01 10:26:23 -07:00
mempolicy.c	Remove user-triggerable BUG from mpol_to_str	2012-09-06 09:37:58 -07:00
mempool.c	mempool: add @gfp_mask to mempool_create_node()	2012-06-25 11:53:47 +02:00
migrate.c	mm: memcg: fix compaction/migration failing due to memcg limits	2012-07-31 18:42:48 -07:00
mincore.c	mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode	2012-03-21 17:54:54 -07:00
mlock.c	vm: avoid using find_vma_prev() unnecessarily	2012-03-06 18:23:36 -08:00
mm_init.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmap.c	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-08-23 21:48:41 -07:00
mmu_context.c	mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()	2012-03-21 17:54:59 -07:00
mmu_notifier.c	mm: mmu_notifier: fix freed page still mapped in secondary MMU	2012-07-31 18:42:49 -07:00
mmzone.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
mprotect.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-03-22 09:04:48 -07:00
mremap.c	mm: account the total_vm in the vm_stat_account()	2012-07-31 18:42:39 -07:00
msync.c
nobootmem.c	memblock: free allocated memblock_reserved_regions later	2012-07-11 16:04:50 -07:00
nommu.c	nommu: fix compilation of nommu.c	2012-06-04 17:17:31 -04:00
oom_kill.c	mm, memcg: move all oom handling to memcontrol.c	2012-07-31 18:42:45 -07:00
page_alloc.c	mm/page_alloc: fix the page address of higher page's buddy calculation	2012-09-17 15:00:38 -07:00
page_cgroup.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
page_io.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
page_isolation.c	memory-hotplug: fix kswapd looping forever problem	2012-07-31 18:42:45 -07:00
page-writeback.c	vfs: kill write_super and sync_supers	2012-08-04 01:24:44 +04:00
pagewalk.c	mm: fix kernel-doc warnings	2012-06-20 14:39:36 -07:00
percpu-km.c
percpu-vm.c	mm: fix kernel-doc warnings	2012-06-20 14:39:36 -07:00
percpu.c	kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP	2012-05-09 10:13:29 -07:00
pgtable-generic.c	arch/tile: allow building Linux with transparent huge pages enabled	2012-05-25 12:48:21 -04:00
prio_tree.c
process_vm_access.c	aio/vfs: cleanup of rw_copy_check_uvector() and compat_rw_copy_check_uvector()	2012-05-31 17:49:32 -07:00
quicklist.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
readahead.c	mm: move readahead syscall to mm/readahead.c	2012-05-29 16:22:23 -07:00
rmap.c	mm: remove swap token code	2012-05-29 16:22:19 -07:00
shmem.c	tmpfs: distribute interleave better across nodes	2012-07-31 18:42:50 -07:00
slab_common.c	mm: Fix build warning in kmem_cache_create()	2012-07-30 13:15:40 +03:00
slab.c	slab: fix starting index for finding another object	2012-09-17 15:00:38 -07:00
slab.h	mm, sl[aou]b: Use a common mutex definition	2012-07-09 12:13:41 +03:00
slob.c	slob: Fix early boot kernel crash	2012-07-12 10:13:22 +03:00
slub.c	slub: consider pfmemalloc_match() in get_partial_node()	2012-09-17 15:00:38 -07:00
sparse-vmemmap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
sparse.c	mm/sparse: remove index_init_lock	2012-07-31 18:42:49 -07:00
swap_state.c	mm: add support for a filesystem to activate swap files and use direct_IO for writing swap pages	2012-07-31 18:42:47 -07:00
swap.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
swapfile.c	mm: swapfile: clean up unuse_pte race handling	2012-07-31 18:42:48 -07:00
truncate.c	mm/fs: remove truncate_range	2012-05-29 16:22:23 -07:00
util.c	new helper: vm_mmap_pgoff()	2012-06-01 10:37:18 -04:00
vmalloc.c	mm: make vb_alloc() more foolproof	2012-07-31 18:42:39 -07:00
vmscan.c	memory hotplug: reset pgdat->kswapd to NULL if creating kernel thread fails	2012-09-17 15:00:37 -07:00
vmstat.c	mm: account for the number of times direct reclaimers get throttled	2012-07-31 18:42:46 -07:00