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Minchan Kim f80c067361 mm: zone_reclaim: make isolate_lru_page() filter-aware 
In __zone_reclaim case, we don't want to shrink mapped page.  Nonetheless,
we have isolated mapped page and re-add it into LRU's head.  It's
unnecessary CPU overhead and makes LRU churning.

Of course, when we isolate the page, the page might be mapped but when we
try to migrate the page, the page would be not mapped.  So it could be
migrated.  But race is rare and although it happens, it's no big deal.

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31 17:30:44 -07:00
..
backing-dev.c
mm: Add comment explaining task state setting in bdi_forker_thread()
2011-09-02 17:17:02 -06:00
bootmem.c
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
bounce.c
bounce: call flush_dcache_page() after bounce_copy_vec()
2010-09-09 18:57:25 -07:00
cleancache.c
mm: cleancache core ops functions and config
2011-05-26 10:01:36 -06:00
compaction.c
mm: compaction: make isolate_lru_page() filter-aware
2011-10-31 17:30:44 -07:00
debug-pagealloc.c
…
dmapool.c
devres: fix possible use after free
2011-07-25 20:57:14 -07:00
fadvise.c
readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM
2010-03-06 11:26:25 -08:00
failslab.c
fault-injection: add ability to export fault_attr in arbitrary directory
2011-08-03 14:25:20 -10:00
filemap_xip.c
mm: Convert i_mmap_lock to a mutex
2011-05-25 08:39:18 -07:00
filemap.c
vfs: iov_iter: have iov_iter_advance decrement nr_segs appropriately
2011-10-28 13:55:08 +02:00
fremap.c
mm: don't access vm_flags as 'int'
2011-05-26 09:20:31 -07:00
highmem.c
mm: make HASHED_PAGE_VIRTUAL page_address' struct page argument const.
2011-08-17 13:00:20 -07:00
huge_memory.c
mm/huge_memory.c: minor lock simplification in __khugepaged_exit
2011-07-25 20:57:09 -07:00
hugetlb.c
mm: hugetlb: fix coding style issues
2011-07-25 20:57:09 -07:00
hwpoison-inject.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
init-mm.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
internal.h
mm: nommu: sort mm->mmap list properly
2011-05-25 08:39:05 -07:00
Kconfig
mm Kconfig typo: cleancacne -> cleancache
2011-06-10 14:47:52 +02:00
Kconfig.debug
mm: debug-pagealloc: fix kconfig dependency warning
2011-03-22 17:44:02 -07:00
kmemcheck.c
kmemcheck: Fix build errors due to missing slab.h
2010-03-30 22:02:32 +09:00
kmemleak-test.c
kmemleak: remove memset by using kzalloc
2011-01-27 18:31:51 +00:00
kmemleak.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
ksm.c
ksm: fix NULL pointer dereference in scan_get_next_rmap_item()
2011-06-15 20:04:02 -07:00
maccess.c
maccess,probe_kernel: Make write/read src const void *
2011-05-25 19:56:23 -04:00
madvise.c
fs: kill i_alloc_sem
2011-07-20 20:47:46 -04:00
Makefile
Cross Memory Attach
2011-10-31 17:30:44 -07:00
memblock.c
mm/memblock.c: avoid abuse of RED_INACTIVE
2011-07-25 20:57:09 -07:00
memcontrol.c
mm: change isolate mode from #define to bitwise type
2011-10-31 17:30:44 -07:00
memory_hotplug.c
mm: extend memory hotplug API to allow memory hotplug in virtual machines
2011-07-25 20:57:08 -07:00
memory-failure.c
HWPoison: add memory_failure_queue()
2011-08-03 11:15:58 -04:00
memory.c
mm/futex: fix futex writes on archs with SW tracking of dirty & young
2011-07-25 20:57:11 -07:00
mempolicy.c
mm/mempolicy.c: make copy_from_user() provably correct
2011-09-14 18:09:36 -07:00
mempool.c
…
migrate.c
mm: fix race between mremap and removing migration entry
2011-10-19 23:42:58 -07:00
mincore.c
mm: clarify the radix_tree exceptional cases
2011-08-03 14:25:24 -10:00
mlock.c
mm: don't access vm_flags as 'int'
2011-05-26 09:20:31 -07:00
mm_init.c
…
mmap.c
mmap: fix and tidy up overcommit page arithmetic
2011-07-25 20:57:09 -07:00
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
mm: Convert i_mmap_lock to a mutex
2011-05-25 08:39:18 -07:00
msync.c
sanitize vfs_fsync calling conventions
2010-05-21 18:31:21 -04:00
nobootmem.c
memblock/nobootmem: remove unneeded code from alloc_bootmem_node_high()
2011-05-25 08:39:31 -07:00
nommu.c
mmap: fix and tidy up overcommit page arithmetic
2011-07-25 20:57:09 -07:00
oom_kill.c
oom: task->mm == NULL doesn't mean the memory was freed
2011-08-01 15:24:12 -10:00
page_alloc.c
fault-injection: add ability to export fault_attr in arbitrary directory
2011-08-03 14:25:20 -10:00
page_cgroup.c
mm: Convert vmalloc/memset to vzalloc
2011-09-15 13:56:56 +02:00
page_io.c
block: kill off REQ_UNPLUG
2011-03-10 08:52:27 +01:00
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
squeeze max-pause area and drop pass-good area
2011-08-19 22:42:07 +08:00
pagewalk.c
pagewalk: fix code comment for THP
2011-07-25 20:57:09 -07:00
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-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2011-05-24 11:53:42 -07:00
pgtable-generic.c
mm/pgtable-generic.c: fix CONFIG_SWAP=n build
2011-01-26 10:49:58 +10:00
prio_tree.c
sanitize <linux/prefetch.h> usage
2011-05-20 12:50:29 -07:00
process_vm_access.c
Cross Memory Attach
2011-10-31 17:30:44 -07:00
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: readahead page allocations are OK to fail
2011-05-25 08:39:25 -07:00
rmap.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback
2011-07-26 10:39:54 -07:00
shmem.c
Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next
2011-08-09 10:31:03 +10:00
slab.c
mm: restrict access to slab files under procfs and sysfs
2011-09-27 22:59:27 +03:00
slob.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
slub.c
Merge branches 'slab/next' and 'slub/partial' into slab/for-linus
2011-10-26 18:09:12 +03:00
sparse-vmemmap.c
tree-wide: fix comment/printk typos
2010-11-01 15:38:34 -04:00
sparse.c
mm: make some struct page's const
2011-07-25 20:57:07 -07:00
swap_state.c
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
swap.c
mm: batch activate_page() to reduce lock contention
2011-05-25 08:39:37 -07:00
swapfile.c
mm: let swap use exceptional entries
2011-08-03 14:25:22 -10:00
thrash.c
mm: swap-token: add a comment for priority aging
2011-07-25 20:57:08 -07:00
truncate.c
mm: a few small updates for radix-swap
2011-08-03 14:25:24 -10:00
util.c
mm: nommu: sort mm->mmap list properly
2011-05-25 08:39:05 -07:00
vmalloc.c
mm: sync vmalloc address space page tables in alloc_vm_area()
2011-09-14 18:09:38 -07:00
vmscan.c
mm: zone_reclaim: make isolate_lru_page() filter-aware
2011-10-31 17:30:44 -07:00
vmstat.c
numa: fix NUMA compile error when sysfs and procfs are disabled
2011-09-14 18:09:37 -07:00