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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2010-08-09 17:19:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 20:44:59 -0700 |
| commit | c6a8a8c589b53f90854a07db3b5806ce111e826b (patch) | |
| tree | c806b2f0d8f6f5b315f94daf864999b273d9530f | |
| parent | b00d3ea7cfe44e177ad5cd8141209d46478a7a51 (diff) | |
| download | linux-stable-c6a8a8c589b53f90854a07db3b5806ce111e826b.tar.gz linux-stable-c6a8a8c589b53f90854a07db3b5806ce111e826b.tar.bz2 linux-stable-c6a8a8c589b53f90854a07db3b5806ce111e826b.zip | |
vmscan: recalculate lru_pages on each priority
shrink_zones() need relatively long time and lru_pages can change
dramatically during shrink_zones(). So lru_pages should be recalculated
for each priority.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/vmscan.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 5b594d62ca01..6dafa45d79e4 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1787,7 +1787,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, bool all_unreclaimable; unsigned long total_scanned = 0; struct reclaim_state *reclaim_state = current->reclaim_state; - unsigned long lru_pages = 0; struct zoneref *z; struct zone *zone; enum zone_type high_zoneidx = gfp_zone(sc->gfp_mask); @@ -1798,18 +1797,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, if (scanning_global_lru(sc)) count_vm_event(ALLOCSTALL); - /* - * mem_cgroup will not do shrink_slab. - */ - if (scanning_global_lru(sc)) { - for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) { - - if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL)) - continue; - - lru_pages += zone_reclaimable_pages(zone); - } - } for (priority = DEF_PRIORITY; priority >= 0; priority--) { sc->nr_scanned = 0; @@ -1821,6 +1808,14 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, * over limit cgroups */ if (scanning_global_lru(sc)) { + unsigned long lru_pages = 0; + for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) { + if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL)) + continue; + + lru_pages += zone_reclaimable_pages(zone); + } + shrink_slab(sc->nr_scanned, sc->gfp_mask, lru_pages); if (reclaim_state) { sc->nr_reclaimed += reclaim_state->reclaimed_slab; |