diff options
| author | Mel Gorman <[email protected]> | 2013-07-03 15:02:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2013-07-03 16:07:29 -0700 |
| commit | f7ab8db791a8692f5ed4201dbae25722c1732a8d (patch) | |
| tree | 8d868083d8f111ff2268f6f57c116b0b1866dcb5 | |
| parent | b1a6f21e3b2315d46ae8af88a8f4eb8ea2763107 (diff) | |
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 <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Valdis Kletnieks <[email protected]>
Cc: Zlatko Calusic <[email protected]>
Cc: dormando <[email protected]>
Cc: Trond Myklebust <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -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 5b1a79c8f0cb..5f80d018bffa 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); } /* |