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| author | Wu Fengguang | 2009-10-27 00:49:53 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2009-10-29 15:39:27 +0100 |
| commit | 41e20983fe553b39bc2b00e07c7a379f0c86a4bc (patch) | |
| tree | 685433b37a7ebe5a61ac7315dc8017706227345b /drivers/block/loop.c | |
| parent | revert "mm: oom analysis: add buffer cache information to show_free_areas()" (diff) | |
| download | kernel-qcow2-linux-41e20983fe553b39bc2b00e07c7a379f0c86a4bc.tar.gz kernel-qcow2-linux-41e20983fe553b39bc2b00e07c7a379f0c86a4bc.tar.xz kernel-qcow2-linux-41e20983fe553b39bc2b00e07c7a379f0c86a4bc.zip | |
vmscan: limit VM_EXEC protection to file pages
It is possible to have !Anon but SwapBacked pages, and some apps could
create huge number of such pages with MAP_SHARED|MAP_ANONYMOUS. These
pages go into the ANON lru list, and hence shall not be protected: we only
care mapped executable files. Failing to do so may trigger OOM.
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/loop.c')
0 files changed, 0 insertions, 0 deletions