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| author | Konstantin Khlebnikov | 2012-01-11 00:07:03 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2012-01-11 01:30:41 +0100 |
| commit | c909e99364c8b6ca07864d752950b6b4ecf6bef4 (patch) | |
| tree | 9942e7a9aeac9a334bb7b4a01c4add8e927b6218 /mm/swap.c | |
| parent | vmscan: promote shared file mapped pages (diff) | |
| download | kernel-qcow2-linux-c909e99364c8b6ca07864d752950b6b4ecf6bef4.tar.gz kernel-qcow2-linux-c909e99364c8b6ca07864d752950b6b4ecf6bef4.tar.xz kernel-qcow2-linux-c909e99364c8b6ca07864d752950b6b4ecf6bef4.zip | |
vmscan: activate executable pages after first usage
Logic added in commit 8cab4754d24a0 ("vmscan: make mapped executable pages
the first class citizen") was noticeably weakened in commit
645747462435d84 ("vmscan: detect mapped file pages used only once").
Currently these pages can become "first class citizens" only after second
usage. After this patch page_check_references() will activate they after
first usage, and executable code gets yet better chance to stay in memory.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Shaohua Li <shaohua.li@intel.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swap.c')
0 files changed, 0 insertions, 0 deletions