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Revert "mm: bail out in shrink_inactive_list()"

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This reverts commit 91dcade47a.

inactive_reclaimable_pages shouldn't be needed anymore since that
get_scan_count is aware of the eligble zones ("mm, vmscan: consider
eligible zones in get_scan_count").

Link: http://lkml.kernel.org/r/20170117103702.28542-4-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Johannes Weiner <hannes@cmpchxg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michal Hocko 2017-02-22 15:46:04 -08:00 • committed by Linus Torvalds
parent 71ab6cfe88
commit abd6e8a7ac
1 changed files with 0 additions and 27 deletions
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27
mm/vmscan.c
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@ -1701,30 +1701,6 @@ static int current_may_throttle(void)
bdi_write_congested(current->backing_dev_info); bdi_write_congested(current->backing_dev_info);
} }
static bool inactive_reclaimable_pages(struct lruvec *lruvec,
struct scan_control *sc, enum lru_list lru)
{
int zid;
struct zone *zone;
int file = is_file_lru(lru);
struct pglist_data *pgdat = lruvec_pgdat(lruvec);
if (!global_reclaim(sc))
return true;
for (zid = sc->reclaim_idx; zid >= 0; zid--) {
zone = &pgdat->node_zones[zid];
if (!managed_zone(zone))
continue;
if (zone_page_state_snapshot(zone, NR_ZONE_LRU_BASE +
LRU_FILE * file) >= SWAP_CLUSTER_MAX)
return true;
}
return false;
}
/* /*
* shrink_inactive_list() is a helper for shrink_node(). It returns the number * shrink_inactive_list() is a helper for shrink_node(). It returns the number
* of reclaimed pages * of reclaimed pages
@ -1743,9 +1719,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
struct pglist_data *pgdat = lruvec_pgdat(lruvec); struct pglist_data *pgdat = lruvec_pgdat(lruvec);
struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat; struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
if (!inactive_reclaimable_pages(lruvec, sc, lru))
return 0;
while (unlikely(too_many_isolated(pgdat, file, sc))) { while (unlikely(too_many_isolated(pgdat, file, sc))) {
congestion_wait(BLK_RW_ASYNC, HZ/10); congestion_wait(BLK_RW_ASYNC, HZ/10);