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author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2008-02-07 00:14:11 -0800 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 08:42:20 -0800 |
commit | ff7283fa3a66823933991ad55a558a3a01d5ab27 (patch) | |
tree | e183c588497ce9f18fea1589fa66b6a000e2cbb8 /net | |
parent | ae41be374293e70e1ed441d986afcc6e744ef9d9 (diff) | |
download | linux-ff7283fa3a66823933991ad55a558a3a01d5ab27.tar.gz linux-ff7283fa3a66823933991ad55a558a3a01d5ab27.tar.bz2 linux-ff7283fa3a66823933991ad55a558a3a01d5ab27.zip |
bugfix for memory cgroup controller: avoid !PageLRU page in mem_cgroup_isolate_pages
This patch makes mem_cgroup_isolate_pages() to be
- ignore !PageLRU pages.
- fixes the bug that isolation makes no progress if page_zone(page) != zone
page once find. (just increment scan in this case.)
kswapd and memory migration removes a page from list when it handles
a page for reclaiming/migration.
Because __isolate_lru_page() doesn't moves page !PageLRU pages, it will
be safe to avoid touching !PageLRU() page and its page_cgroup.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Paul Menage <menage@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Kirill Korotaev <dev@sw.ru>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: David Rientjes <rientjes@google.com>
Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions