diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 292f50a2a685..463990941a78 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1973,18 +1973,17 @@ static void shrink_zone(struct zone *zone, struct scan_control *sc) shrink_lruvec(lruvec, sc); /* - * Limit reclaim has historically picked one - * memcg and scanned it with decreasing - * priority levels until nr_to_reclaim had - * been reclaimed. This priority cycle is - * thus over after a single memcg. - * - * Direct reclaim and kswapd, on the other - * hand, have to scan all memory cgroups to - * fulfill the overall scan target for the + * Direct reclaim and kswapd have to scan all memory + * cgroups to fulfill the overall scan target for the * zone. + * + * Limit reclaim, on the other hand, only cares about + * nr_to_reclaim pages to be reclaimed and it will + * retry with decreasing priority if one round over the + * whole hierarchy is not sufficient. */ - if (!global_reclaim(sc)) { + if (!global_reclaim(sc) && + sc->nr_reclaimed >= sc->nr_to_reclaim) { mem_cgroup_iter_break(root, memcg); break; } |