diff options
| author | Mel Gorman <mgorman@techsingularity.net> | 2016-07-28 15:45:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-28 16:07:41 -0700 |
| commit | a52633d8e9c35832f1409dc5fa166019048a3f1f (patch) | |
| tree | 489be85b88b8dc0749747d603448bb3669db0d14 /mm/page_idle.c | |
| parent | 75ef7184053989118d3814c558a9af62e7376a58 (diff) | |
| download | linux-stable-a52633d8e9c35832f1409dc5fa166019048a3f1f.tar.gz linux-stable-a52633d8e9c35832f1409dc5fa166019048a3f1f.tar.bz2 linux-stable-a52633d8e9c35832f1409dc5fa166019048a3f1f.zip | |
mm, vmscan: move lru_lock to the node
Node-based reclaim requires node-based LRUs and locking. This is a
preparation patch that just moves the lru_lock to the node so later
patches are easier to review. It is a mechanical change but note this
patch makes contention worse because the LRU lock is hotter and direct
reclaim and kswapd can contend on the same lock even when reclaiming
from different zones.
Link: http://lkml.kernel.org/r/1467970510-21195-3-git-send-email-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_idle.c')
| -rw-r--r-- | mm/page_idle.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_idle.c b/mm/page_idle.c index 4ea9c4ef5146..ae11aa914e55 100644 --- a/mm/page_idle.c +++ b/mm/page_idle.c @@ -41,12 +41,12 @@ static struct page *page_idle_get_page(unsigned long pfn) return NULL; zone = page_zone(page); - spin_lock_irq(&zone->lru_lock); + spin_lock_irq(zone_lru_lock(zone)); if (unlikely(!PageLRU(page))) { put_page(page); page = NULL; } - spin_unlock_irq(&zone->lru_lock); + spin_unlock_irq(zone_lru_lock(zone)); return page; } |