Andrea Arcangeli 288468c334 rmap: always use anon_vma root pointer ...

Always use anon_vma->root pointer instead of anon_vma_chain.prev.

Also optimize the map-paths, if a mapping is already established no need
to overwrite it with root anon-vma list, we can keep the more finegrined
anon-vma and skip the overwrite: see the PageAnon check in !exclusive
case.  This is also the optimization that hidden the ksm bug as this tends
to make ksm_might_need_to_copy skip the copy, but only the proper fix to
ksm_might_need_to_copy guarantees not triggering the ksm bug unless ksm is
in use.  this is an optimization only...

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
[kamezawa.hiroyu@jp.fujitsu.com: fix false positive BUG_ON in __page_set_anon_rmap]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2010-08-09 20:44:58 -07:00

..

backing-dev.c

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-08-06 09:23:07 -07:00

bootmem.c

x86,nobootmem: make alloc_bootmem_node fall back to other node when 32bit numa is used

2010-07-20 16:25:40 -07:00

bounce.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

compaction.c

mm: compaction: add a tunable that decides when memory should be compacted and when it should be reclaimed

2010-05-25 08:06:59 -07:00

debug-pagealloc.c

generic debug pagealloc

2009-04-01 08:59:13 -07:00

dmapool.c

dmapools: protect page_list walk in show_pools()

2009-06-30 18:56:00 -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

gcc-4.6: mm: fix unused but set warnings

2010-08-09 20:44:58 -07:00

fremap.c

mm: clean up mm_counter

2010-03-06 11:26:23 -08:00

highmem.c

mm,kdb,kgdb: Add a debug reference for the kdb kmap usage

2010-08-05 09:22:24 -05:00

hugetlb.c

hugetlb: call mmu notifiers on hugepage cow

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

hwpoison-inject.c

HWPOISON: Don't do early filtering if filter is disabled

2009-12-16 12:20:01 +01:00

init-mm.c

mm: provide init_mm mm_context initializer

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

internal.h

HWPOISON: add an interface to switch off/on all the page filters

2009-12-16 12:19:59 +01:00

Kconfig

lmb: rename to memblock

2010-07-14 17:14:00 +10:00

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

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

ksm.c

mm: extend KSM refcounts to the anon_vma root

2010-08-09 20:44:55 -07:00

maccess.c

maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)

2010-01-07 11:58:36 -06:00

madvise.c

HWPOISON: Add a madvise() injector for soft page offlining

2009-12-16 12:20:00 +01:00

Makefile

lmb: rename to memblock

2010-07-14 17:14:00 +10:00

memblock.c

lmb: rename to memblock

2010-07-14 17:14:00 +10:00

memcontrol.c

memcg: fix wake up in oom wait queue

2010-06-29 15:29:30 -07:00

memory_hotplug.c

mem-hotplug: fix potential race while building zonelist for new populated zone

2010-05-25 08:07:02 -07:00

memory-failure.c

KVM: Fix a race condition for usage of is_hwpoison_address()

2010-08-01 10:47:11 +03:00

memory.c

gcc-4.6: mm: fix unused but set warnings

2010-08-09 20:44:58 -07:00

mempolicy.c

mempolicy: reduce stack size of migrate_pages()

2010-08-09 20:44:58 -07:00

mempool.c

mm: remove broken 'kzalloc' mempool

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

migrate.c

mm: extend KSM refcounts to the anon_vma root

2010-08-09 20:44:55 -07:00

mincore.c

mincore: do nested page table walks

2010-05-25 08:06:58 -07:00

mlock.c

x86, perf, bts, mm: Delete the never used BTS-ptrace code

2010-03-26 11:33:55 +01:00

mm_init.c

…

mmap.c

mmap: remove unnecessary lock from __vma_link

2010-08-09 20:44:58 -07:00

mmu_context.c

exit: fix oops in sync_mm_rss

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

mmu_notifier.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

mmzone.c

[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2

2009-05-18 11:22:24 +01:00

mprotect.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

mremap.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

msync.c

sanitize vfs_fsync calling conventions

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

nommu.c

nommu: allow private mappings of read-only devices

2010-05-26 08:19:23 -07:00

oom_kill.c

oom: fold __out_of_memory into out_of_memory

2010-08-09 20:44:57 -07:00

page_alloc.c

mm: rename try_set_zone_oom() to try_set_zonelist_oom()

2010-08-09 20:44:57 -07:00

page_cgroup.c

kmemleak: Annotate false positive in init_section_page_cgroup()

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

page_io.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

page_isolation.c

memory hotplug: fix page_zone() calculation in test_pages_isolated()

2008-11-06 15:41:19 -08:00

page-writeback.c

writeback: remove writeback_inodes_wbc

2010-07-06 08:54:03 +02:00

pagewalk.c

pagemap: fix pfn calculation for hugepage

2010-04-07 08:38:04 -07:00

percpu_up.c

percpu: don't implicitly include slab.h from percpu.h

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

percpu-km.c

percpu: implement kernel memory based chunk allocation

2010-05-01 08:30:50 +02:00

percpu-vm.c

percpu: move vmalloc based chunk management into percpu-vm.c

2010-05-01 08:30:50 +02:00

percpu.c

percpu: allow limited allocation before slab is online

2010-06-27 18:50:00 +02:00

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

rmap: always use anon_vma root pointer

2010-08-09 20:44:58 -07:00

shmem.c

shmem: reduce pagefault lock contention

2010-08-09 20:44:58 -07:00

slab.c

gcc-4.6: mm: fix unused but set warnings

2010-08-09 20:44:58 -07:00

slob.c

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

2010-08-06 11:44:08 -07:00

slub.c

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

2010-08-06 11:44:08 -07:00

sparse-vmemmap.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

sparse.c

sparsemem: on no vmemmap path put mem_map on node high too

2010-05-25 08:06:56 -07:00

swap_state.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

swap.c

mm: export lru_cache_add_*() to modules

2010-05-25 15:06:06 +02:00

swapfile.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

2010-05-21 15:26:46 -07:00

thrash.c

mm: pass mm to grab_swap_token

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

truncate.c

fs: introduce new truncate sequence

2010-05-27 22:15:33 -04:00

util.c

mm: use memdup_user

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

vmalloc.c

mm: use ERR_CAST

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

vmscan.c

mm/vmscan.c: fix mapping use after free

2010-07-20 16:25:40 -07:00

vmstat.c

mm: use for_each_online_cpu() in vmstat

2010-08-09 20:44:57 -07:00