The commit is pushed to "branch-rh7-3.10.0-514.vz7.27.x-ovz" and will appear at
https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-514.vz7.27.10
------>
commit 5cef95b929bdf374d1de76d19382f78d06ab48e6
Author: Johannes Weiner <han...@cmpxchg.org>
Date: Mon Jan 16 20:27:09 2017 +0400
ms/mm: memcontrol: reclaim at least once for __GFP_NORETRY
Currently, __GFP_NORETRY tries charging once and gives up before even
trying to reclaim. Bring the behavior on par with the page allocator
and reclaim at least once before giving up.
Signed-off-by: Johannes Weiner <han...@cmpxchg.org>
Acked-by: Michal Hocko <mho...@suse.cz>
Cc: Hugh Dickins <hu...@google.com>
Cc: Tejun Heo <t...@kernel.org>
Cc: Vladimir Davydov <vdavy...@parallels.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
https://jira.sw.ru/browse/PSBM-51558
(cherry picked from commit 28c34c291e746aab1c2bfd6d6609b2e47fa0978b)
Signed-off-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
---
mm/memcontrol.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f006cdd..3608d80 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2804,13 +2804,13 @@ retry:
if (!(gfp_mask & __GFP_WAIT))
goto nomem;
- if (gfp_mask & __GFP_NORETRY)
- goto nomem;
-
nr_reclaimed = mem_cgroup_reclaim(mem_over_limit, gfp_mask, flags);
if (mem_cgroup_margin(mem_over_limit) >= batch)
goto retry;
+
+ if (gfp_mask & __GFP_NORETRY)
+ goto nomem;
/*
* Even though the limit is exceeded at this point, reclaim
* may have been able to free some pages. Retry the charge
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