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mm/memcg: mem_cgroup_relize_xxx_limit can guarantee memcg->res.limit <= memcg->memsw.limit

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Signed-off-by: Wanpeng Li <liwp.linux@gmail.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wanpeng Li 2012-07-31 16:43:23 -07:00 committed by Linus Torvalds
parent 05a73ed29a
commit aaad153e34
1 changed files with 2 additions and 2 deletions
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4
mm/memcontrol.c
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@ -3416,7 +3416,7 @@ static int mem_cgroup_resize_limit(struct mem_cgroup *memcg,
/*
* Rather than hide all in some function, I do this in
* open coded manner. You see what this really does.
* We have to guarantee memcg->res.limit < memcg->memsw.limit.
* We have to guarantee memcg->res.limit <= memcg->memsw.limit.
*/
mutex_lock(&set_limit_mutex);
memswlimit = res_counter_read_u64(&memcg->memsw, RES_LIMIT);
@ -3477,7 +3477,7 @@ static int mem_cgroup_resize_memsw_limit(struct mem_cgroup *memcg,
/*
* Rather than hide all in some function, I do this in
* open coded manner. You see what this really does.
* We have to guarantee memcg->res.limit < memcg->memsw.limit.
* We have to guarantee memcg->res.limit <= memcg->memsw.limit.
*/
mutex_lock(&set_limit_mutex);
memlimit = res_counter_read_u64(&memcg->res, RES_LIMIT);