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| author | Mel Gorman <mgorman@suse.de> | 2013-07-03 15:02:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 16:07:29 -0700 |
| commit | f7ab8db791a8692f5ed4201dbae25722c1732a8d (patch) | |
| tree | 8d868083d8f111ff2268f6f57c116b0b1866dcb5 | |
| parent | b1a6f21e3b2315d46ae8af88a8f4eb8ea2763107 (diff) | |
| download | op-kernel-dev-f7ab8db791a8692f5ed4201dbae25722c1732a8d.zip op-kernel-dev-f7ab8db791a8692f5ed4201dbae25722c1732a8d.tar.gz | |
mm: vmscan: set zone flags before blocking
In shrink_page_list a decision may be made to stall and flag a zone as
ZONE_WRITEBACK so that if a large number of unqueued dirty pages are
encountered later then the reclaimer will stall. Set ZONE_WRITEBACK
before potentially going to sleep so it is noticed sooner.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Rik van Riel <riel@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Zlatko Calusic <zcalusic@bitsync.net>
Cc: dormando <dormando@rydia.net>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -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 5b1a79c..5f80d01 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1445,8 +1445,8 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec, */ if (nr_writeback && nr_writeback >= (nr_taken >> (DEF_PRIORITY - sc->priority))) { - wait_iff_congested(zone, BLK_RW_ASYNC, HZ/10); zone_set_flag(zone, ZONE_WRITEBACK); + wait_iff_congested(zone, BLK_RW_ASYNC, HZ/10); } /* |
