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

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backing-dev.c

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bootmem.c

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bounce.c

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cleancache.c

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compaction.c

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debug-pagealloc.c

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dmapool.c

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fadvise.c

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failslab.c

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filemap_xip.c

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filemap.c

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fremap.c

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frontswap.c

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highmem.c

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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

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hugetlb.c

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hwpoison-inject.c

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init-mm.c

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internal.h

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Kconfig

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Kconfig.debug

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kmemcheck.c

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kmemleak-test.c

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kmemleak.c

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ksm.c

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maccess.c

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madvise.c

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Makefile

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memblock.c

mm/memblock: Use NULL instead of 0 for pointers

2012-09-05 08:32:30 +02:00

memcontrol.c

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memory_hotplug.c

memory hotplug: fix section info double registration bug

2012-09-17 15:00:38 -07:00

memory-failure.c

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memory.c

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mempolicy.c

Remove user-triggerable BUG from mpol_to_str

2012-09-06 09:37:58 -07:00

mempool.c

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migrate.c

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mincore.c

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mlock.c

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mm_init.c

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mmap.c

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mmu_context.c

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mmu_notifier.c

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mmzone.c

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mprotect.c

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mremap.c

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msync.c

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nobootmem.c

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nommu.c

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oom_kill.c

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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

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page_io.c

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page_isolation.c

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page-writeback.c

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pagewalk.c

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percpu-km.c

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percpu-vm.c

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percpu.c

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pgtable-generic.c

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prio_tree.c

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process_vm_access.c

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quicklist.c

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readahead.c

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rmap.c

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shmem.c

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slab_common.c

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slab.c

slab: fix starting index for finding another object

2012-09-17 15:00:38 -07:00

slab.h

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slob.c

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slub.c

slub: consider pfmemalloc_match() in get_partial_node()

2012-09-17 15:00:38 -07:00

sparse-vmemmap.c

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sparse.c

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swap_state.c

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swap.c

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swapfile.c

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truncate.c

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util.c

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vmalloc.c

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vmscan.c

memory hotplug: reset pgdat->kswapd to NULL if creating kernel thread fails

2012-09-17 15:00:37 -07:00

vmstat.c

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