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| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-08-08 14:19:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 15:57:18 -0700 |
| commit | 747db954cab64c6b7a95b121b517165f34751898 (patch) | |
| tree | 35149b31a5f3a0bb85df2e40c79c46ed2df4f4ed /kernel/fork.c | |
| parent | 0a31bc97c80c3fa87b32c091d9a930ac19cd0c40 (diff) | |
| download | lwn-747db954cab64c6b7a95b121b517165f34751898.tar.gz lwn-747db954cab64c6b7a95b121b517165f34751898.zip | |
mm: memcontrol: use page lists for uncharge batching
Pages are now uncharged at release time, and all sources of batched
uncharges operate on lists of pages. Directly use those lists, and
get rid of the per-task batching state.
This also batches statistics accounting, in addition to the res
counter charges, to reduce IRQ-disabling and re-enabling.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index fbd3497b221f..f6f5086c9e7d 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1346,10 +1346,6 @@ static struct task_struct *copy_process(unsigned long clone_flags, #ifdef CONFIG_DEBUG_MUTEXES p->blocked_on = NULL; /* not blocked yet */ #endif -#ifdef CONFIG_MEMCG - p->memcg_batch.do_batch = 0; - p->memcg_batch.memcg = NULL; -#endif #ifdef CONFIG_BCACHE p->sequential_io = 0; p->sequential_io_avg = 0; |