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mm: memcontrol: remove stale page_cgroup_lock comment

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There is no cgroup-specific page lock anymore.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2014-12-10 15:44:50 -08:00 committed by Linus Torvalds
parent a1ad28973d
commit 22811c6bc3
1 changed files with 0 additions and 4 deletions
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mm/memcontrol.c
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@ -2467,10 +2467,6 @@ static void commit_charge(struct page *page, struct mem_cgroup *memcg,
int isolated;
VM_BUG_ON_PAGE(pc->mem_cgroup, page);
/*
* we don't need page_cgroup_lock about tail pages, becase they are not
* accessed by any other context at this point.
*/
/*
* In some cases, SwapCache and FUSE(splice_buf->radixtree), the page