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| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2018-04-10 16:27:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-11 10:28:29 -0700 |
| commit | c4fd4fa58018bab781c17c8d92d70106a37b6a5c (patch) | |
| tree | c6f5e9541be443d7a023cdc3211630a66ec855f7 /mm | |
| parent | 894befec4d70b1c14097e4f009c90114b5a044ba (diff) | |
| download | linux-c4fd4fa58018bab781c17c8d92d70106a37b6a5c.tar.gz | |
mm/vmscan: remove redundant current_may_throttle() check
Only kswapd can have non-zero nr_immediate, and current_may_throttle() is always true for kswapd (PF_LESS_THROTTLE bit is never set) thus it's enough to check stat.nr_immediate only. Link: http://lkml.kernel.org/r/20180315164553.17856-4-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Tejun Heo <tj@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmscan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 6d74b12099bd..403f59edd53e 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1807,7 +1807,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec, * that pages are cycling through the LRU faster than * they are written so also forcibly stall. */ - if (stat.nr_immediate && current_may_throttle()) + if (stat.nr_immediate) congestion_wait(BLK_RW_ASYNC, HZ/10); } |