diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 8ea87586925e..28c9ae5633b9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -474,9 +474,18 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl, nr = atomic_long_xchg(&shrinker->nr_deferred[nid], 0); total_scan = nr; - delta = freeable >> priority; - delta *= 4; - do_div(delta, shrinker->seeks); + if (shrinker->seeks) { + delta = freeable >> priority; + delta *= 4; + do_div(delta, shrinker->seeks); + } else { + /* + * These objects don't require any IO to create. Trim + * them aggressively under memory pressure to keep + * them from causing refetches in the IO caches. + */ + delta = freeable / 2; + } /* * Make sure we apply some minimal pressure on default priority |