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| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-08-06 16:05:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:17 -0700 |
| commit | 9b1306192d335759a6cf2f3b404c49e811e5f953 (patch) | |
| tree | b1022d96acd94bb244449593a355b3dd7138ab71 /mm/memcontrol.c | |
| parent | d51d885bbb137cc8e1704e76be1846c5e0d5e8b4 (diff) | |
| download | blackbird-obmc-linux-9b1306192d335759a6cf2f3b404c49e811e5f953.tar.gz blackbird-obmc-linux-9b1306192d335759a6cf2f3b404c49e811e5f953.zip | |
mm: memcontrol: retry reclaim for oom-disabled and __GFP_NOFAIL charges
There is no reason why oom-disabled and __GFP_NOFAIL charges should try
to reclaim only once when every other charge tries several times before
giving up. Make them all retry the same number of times.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a73f3947f5d9..3069d6420b0e 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2566,7 +2566,7 @@ static int mem_cgroup_try_charge(struct mem_cgroup *memcg, bool oom) { unsigned int batch = max(CHARGE_BATCH, nr_pages); - int nr_oom_retries = MEM_CGROUP_RECLAIM_RETRIES; + int nr_retries = MEM_CGROUP_RECLAIM_RETRIES; struct mem_cgroup *mem_over_limit; struct res_counter *fail_res; unsigned long nr_reclaimed; @@ -2638,6 +2638,9 @@ retry: if (mem_cgroup_wait_acct_move(mem_over_limit)) goto retry; + if (nr_retries--) + goto retry; + if (gfp_mask & __GFP_NOFAIL) goto bypass; @@ -2647,9 +2650,6 @@ retry: if (!oom) goto nomem; - if (nr_oom_retries--) - goto retry; - mem_cgroup_oom(mem_over_limit, gfp_mask, get_order(batch)); nomem: if (!(gfp_mask & __GFP_NOFAIL)) |
