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| author | Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> | 2011-03-23 16:42:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-23 19:46:25 -0700 |
| commit | f212ad7cf9c73f8a7fa160e223dcb3f074441a72 (patch) | |
| tree | 95789ef7ce662e86a3e4aded5dfb97c51dc7b0a0 /mm/mmu_notifier.c | |
| parent | af4a662144884a7dbb19acbef70878b3b955f928 (diff) | |
| download | kernel_samsung_tuna-f212ad7cf9c73f8a7fa160e223dcb3f074441a72.zip kernel_samsung_tuna-f212ad7cf9c73f8a7fa160e223dcb3f074441a72.tar.gz kernel_samsung_tuna-f212ad7cf9c73f8a7fa160e223dcb3f074441a72.tar.bz2 | |
memcg: add memcg sanity checks at allocating and freeing pages
Add checks at allocating or freeing a page whether the page is used (iow,
charged) from the view point of memcg.
This check may be useful in debugging a problem and we did similar checks
before the commit 52d4b9ac(memcg: allocate all page_cgroup at boot).
This patch adds some overheads at allocating or freeing memory, so it's
enabled only when CONFIG_DEBUG_VM is enabled.
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmu_notifier.c')
0 files changed, 0 insertions, 0 deletions