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mm: memcontrol: retry reclaim for oom-disabled and __GFP_NOFAIL charges

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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 <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johannes Weiner 2014-08-06 16:05:51 -07:00 • committed by Linus Torvalds
commit 9b1306192d
1 changed files with 4 additions and 4 deletions
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8
mm/memcontrol.c
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@ -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))