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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2009-06-23 01:57:55 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 19:17:28 +0200 |
| commit | cb4cbcf6b3cf79f80c157afdc8dd8221643d8481 (patch) | |
| tree | a328516967ad0daeff9702a2cf5760fb25fd26a7 | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vap... (diff) | |
| download | linux-cb4cbcf6b3cf79f80c157afdc8dd8221643d8481.tar.xz linux-cb4cbcf6b3cf79f80c157afdc8dd8221643d8481.zip | |
mm: fix incorrect page removal from LRU
The isolated page is "cursor_page" not "page".
This could cause LRU list corruption under memory pressure, caught by
CONFIG_DEBUG_LIST.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Tested-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/vmscan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index e8fa2d9eb212..54155268dfca 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -932,7 +932,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, continue; if (__isolate_lru_page(cursor_page, mode, file) == 0) { list_move(&cursor_page->lru, dst); - mem_cgroup_del_lru(page); + mem_cgroup_del_lru(cursor_page); nr_taken++; scan++; } |