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v0.5.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
Revision cbedbac3e66121ddbac363776c23119f8eaeefda authored by Li RongQing on 27 May 2016, 21:27:43 UTC, committed by Linus Torvalds on 27 May 2016, 21:49:37 UTC 
mm/memcontrol.c: fix the margin computation in mem_cgroup_margin()
 
mem_cgroup_margin() might return (memory.limit - memory_count) when the
memsw.limit is in excess.  This doesn't happen usually because we do not
allow excess on hard limits and (memory.limit <= memsw.limit), but
__GFP_NOFAIL charges can force the charge and cause the excess when no
memory is really swappable (swap is full or no anonymous memory is
left).

[mhocko@suse.com: rewrote changelog]
  Link: http://lkml.kernel.org/r/20160525155122.GK20132@dhcp22.suse.cz
Link: http://lkml.kernel.org/r/1464068266-27736-1-git-send-email-roy.qing.li@gmail.com
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent badbda5
History
Tip revision: cbedbac3e66121ddbac363776c23119f8eaeefda authored by Li RongQing on 27 May 2016, 21:27:43 UTC
mm/memcontrol.c: fix the margin computation in mem_cgroup_margin()
Tip revision: cbedbac
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