From 9b1306192d335759a6cf2f3b404c49e811e5f953 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 6 Aug 2014 16:05:51 -0700 Subject: [PATCH] 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 Acked-by: Michal Hocko Cc: Hugh Dickins Cc: Tejun Heo Cc: Vladimir Davydov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 8 ++++---- 1 file 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)) -- 2.30.2