Andrea Arcangeli 91600e9e59 thp: fix memory-failure hugetlbfs vs THP collision ...

hugetlbfs was changed to allow memory failure to migrate the hugetlbfs
pages and that broke THP as split_huge_page was then called on hugetlbfs
pages too.

compound_head/order was also run unsafe on THP pages that can be splitted
at any time.

All compound_head() invocations in memory-failure.c that are run on pages
that aren't pinned and that can be freed and reused from under us (while
compound_head is running) are buggy because compound_head can return a
dangling pointer, but I'm not fixing this as this is a generic
memory-failure bug not specific to THP but it applies to hugetlbfs too, so
I can fix it later after THP is merged upstream.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2011-01-13 17:32:47 -08:00

..

backing-dev.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2010-10-26 17:58:44 -07:00

bootmem.c

x86, memblock: Replace e820_/_early string with memblock_

2010-08-27 11:13:47 -07:00

bounce.c

bounce: call flush_dcache_page() after bounce_copy_vec()

2010-09-09 18:57:25 -07:00

compaction.c

thp: use compaction for all allocation orders

2011-01-13 17:32:46 -08:00

debug-pagealloc.c

…

dmapool.c

mm: add a might_sleep_if() to dma_pool_alloc()

2010-10-26 16:52:08 -07:00

fadvise.c

readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM

2010-03-06 11:26:25 -08:00

failslab.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

filemap_xip.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

filemap.c

mm: remove likely() from grab_cache_page_write_begin()

2011-01-13 17:32:36 -08:00

fremap.c

Avoid pgoff overflow in remap_file_pages

2010-09-25 09:34:58 -07:00

highmem.c

mm,x86: fix kmap_atomic_push vs ioremap_32.c

2010-10-27 18:03:05 -07:00

huge_memory.c

thp: fix anon memory statistics with transparent hugepages

2011-01-13 17:32:46 -08:00

hugetlb.c

thp: clear_copy_huge_page

2011-01-13 17:32:41 -08:00

hwpoison-inject.c

HWPOISON, hugetlb: support hwpoison injection for hugepage

2010-08-11 09:23:11 +02:00

init-mm.c

mm: provide init_mm mm_context initializer

2010-08-09 20:44:54 -07:00

internal.h

thp: transparent hugepage core

2011-01-13 17:32:42 -08:00

Kconfig

thp: select CONFIG_COMPACTION if TRANSPARENT_HUGEPAGE enabled

2011-01-13 17:32:45 -08:00

Kconfig.debug

trivial: improve help text for mm debug config options

2009-09-21 15:14:57 +02:00

kmemcheck.c

kmemcheck: Fix build errors due to missing slab.h

2010-03-30 22:02:32 +09:00

kmemleak-test.c

percpu: clean up percpu variable definitions

2009-06-24 15:13:48 +09:00

kmemleak.c

kmemleak: Fix typo in the comment

2010-08-08 21:57:23 +01:00

ksm.c

thp: freeze khugepaged and ksmd

2011-01-13 17:32:46 -08:00

maccess.c

MN10300: Save frame pointer in thread_info struct rather than global var

2010-10-27 17:29:01 +01:00

madvise.c

thp: madvise(MADV_HUGEPAGE)

2011-01-13 17:32:42 -08:00

Makefile

thp: transparent hugepage core

2011-01-13 17:32:42 -08:00

memblock.c

memblock: Annotate memblock functions with __init_memblock

2010-10-11 16:00:52 -07:00

memcontrol.c

thp: fix anon memory statistics with transparent hugepages

2011-01-13 17:32:46 -08:00

memory_hotplug.c

thp: remove PG_buddy

2011-01-13 17:32:43 -08:00

memory-failure.c

thp: fix memory-failure hugetlbfs vs THP collision

2011-01-13 17:32:47 -08:00

memory.c

thp: add debug checks for mapcount related invariants

2011-01-13 17:32:47 -08:00

mempolicy.c

thp: add numa awareness to hugepage allocations

2011-01-13 17:32:45 -08:00

mempool.c

mm: remove broken 'kzalloc' mempool

2009-09-22 07:17:35 -07:00

migrate.c

thp: pmd_trans_huge migrate bugcheck

2011-01-13 17:32:42 -08:00

mincore.c

thp: mincore transparent hugepage support

2011-01-13 17:32:44 -08:00

mlock.c

mlock: do not hold mmap_sem for extended periods of time

2011-01-13 17:32:36 -08:00

mm_init.c

…

mmap.c

thp: avoid breaking huge pmd invariants in case of vma_adjust failures

2011-01-13 17:32:45 -08:00

mmu_context.c

exit: fix oops in sync_mm_rss

2010-03-24 16:31:21 -07:00

mmu_notifier.c

thp: mmu_notifier_test_young

2011-01-13 17:32:46 -08:00

mmzone.c

mm: page allocator: adjust the per-cpu counter threshold when memory is low

2011-01-13 17:32:31 -08:00

mprotect.c

thp: mprotect: transparent huge page support

2011-01-13 17:32:44 -08:00

mremap.c

thp: split_huge_page_mm/vma

2011-01-13 17:32:41 -08:00

msync.c

sanitize vfs_fsync calling conventions

2010-05-21 18:31:21 -04:00

nommu.c

mlock: do not hold mmap_sem for extended periods of time

2011-01-13 17:32:36 -08:00

oom_kill.c

oom: kill all threads sharing oom killed task's mm

2010-10-26 16:52:05 -07:00

page_alloc.c

thp: remove PG_buddy

2011-01-13 17:32:43 -08:00

page_cgroup.c

kmemleak: Annotate false positive in init_section_page_cgroup()

2010-07-19 11:54:14 +01:00

page_io.c

block: unify flags for struct bio and struct request

2010-08-07 18:20:39 +02:00

page_isolation.c

mm: page_isolation: codeclean fix comment and rm unneeded val init

2010-10-26 16:52:11 -07:00

page-writeback.c

writeback: avoid unnecessary determine_dirtyable_memory call

2011-01-13 17:32:38 -08:00

pagewalk.c

thp: split_huge_page_mm/vma

2011-01-13 17:32:41 -08:00

percpu-km.c

percpu: clear memory allocated with the km allocator

2010-10-02 10:28:42 +03:00

percpu-vm.c

mm: remove gfp mask from pcpu_get_vm_areas

2011-01-13 17:32:34 -08:00

percpu.c

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2011-01-13 10:05:56 -08:00

pgtable-generic.c

thp: add pmd mangling generic functions

2011-01-13 17:32:40 -08:00

prio_tree.c

…

quicklist.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

readahead.c

readahead.c: fix comment

2010-05-25 08:07:00 -07:00

rmap.c

thp: fix memory-failure hugetlbfs vs THP collision

2011-01-13 17:32:47 -08:00

shmem.c

fs: icache RCU free inodes

2011-01-07 17:50:26 +11:00

slab.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6

2011-01-10 08:38:01 -08:00

slob.c

kernel: kmem_ptr_validate considered harmful

2011-01-07 17:50:16 +11:00

slub.c

mm: convert sprintf_symbol to %pS

2011-01-13 17:32:33 -08:00

sparse-vmemmap.c

tree-wide: fix comment/printk typos

2010-11-01 15:38:34 -04:00

sparse.c

thp: remove PG_buddy

2011-01-13 17:32:43 -08:00

swap_state.c

thp: split_huge_page paging

2011-01-13 17:32:41 -08:00

swap.c

thp: transparent hugepage core

2011-01-13 17:32:42 -08:00

swapfile.c

thp: split_huge_page paging

2011-01-13 17:32:41 -08:00

thrash.c

mm: pass mm to grab_swap_token

2009-06-23 12:50:05 -07:00

truncate.c

Call the filesystem back whenever a page is removed from the page cache

2010-12-02 09:55:21 -05:00

util.c

kernel: kmem_ptr_validate considered harmful

2011-01-07 17:50:16 +11:00

vmalloc.c

vmalloc: remove redundant unlikely()

2011-01-13 17:32:36 -08:00

vmscan.c

thp: scale nr_rotated to balance memory pressure

2011-01-13 17:32:46 -08:00

vmstat.c

thp: transparent hugepage vmstat

2011-01-13 17:32:43 -08:00