diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2008-10-19 05:28:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-20 17:52:38 +0200 |
| commit | b7abea9630bc8ffc663a751e46680db25c4cdf8d (patch) | |
| tree | b37d5ba073ccea31328812c74598872d49a85735 /drivers/scsi/aic7xxx/aic79xx_inline.h | |
| parent | memcg: move charge swapin under lock (diff) | |
| download | linux-b7abea9630bc8ffc663a751e46680db25c4cdf8d.tar.xz linux-b7abea9630bc8ffc663a751e46680db25c4cdf8d.zip | |
memcg: make page->mapping NULL before uncharge
This patch tries to make page->mapping to be NULL before
mem_cgroup_uncharge_cache_page() is called.
"page->mapping == NULL" is a good check for "whether the page is still
radix-tree or not". This patch also adds BUG_ON() to
mem_cgroup_uncharge_cache_page();
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@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 'drivers/scsi/aic7xxx/aic79xx_inline.h')
0 files changed, 0 insertions, 0 deletions