[PATCH 13/14] lru/vmscan: using per lruvec lru_lock in get_scan_count

[Alex Shi]

The lruvec is passed as parameter, so no lruvec->pgdat syncing needed.

Signed-off-by: Alex Shi <alex....@linux.alibaba.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Michal Hocko <mho...@suse.com>
Cc: Kirill Tkhai <ktk...@virtuozzo.com>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Daniel Jordan <daniel.m.jor...@oracle.com>
Cc: Yafang Shao <laoar.s...@gmail.com>
Cc: Yang Shi <yang....@linux.alibaba.com>
Cc: Mel Gorman <mgor...@techsingularity.net>
Cc: cgro...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
---
 mm/vmscan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 123447b9beda..ea5c2f3f2567 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2372,7 +2372,7 @@ static void get_scan_count(struct lruvec *lruvec, struct 
mem_cgroup *memcg,
        file  = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE, MAX_NR_ZONES) +
                lruvec_lru_size(lruvec, LRU_INACTIVE_FILE, MAX_NR_ZONES);
 
-       spin_lock_irq(&pgdat->lruvec.lru_lock);
+       spin_lock_irq(&lruvec->lru_lock);
        if (unlikely(reclaim_stat->recent_scanned[0] > anon / 4)) {
                reclaim_stat->recent_scanned[0] /= 2;
                reclaim_stat->recent_rotated[0] /= 2;
@@ -2393,7 +2393,7 @@ static void get_scan_count(struct lruvec *lruvec, struct 
mem_cgroup *memcg,
 
        fp = file_prio * (reclaim_stat->recent_scanned[1] + 1);
        fp /= reclaim_stat->recent_rotated[1] + 1;
-       spin_unlock_irq(&pgdat->lruvec.lru_lock);
+       spin_unlock_irq(&lruvec->lru_lock);
 
        fraction[0] = ap;
        fraction[1] = fp;
-- 
1.8.3.1