From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Shi Subject: [PATCH 13/14] lru/vmscan: using per lruvec lru_lock in get_scan_count Date: Tue, 20 Aug 2019 17:48:36 +0800 Message-ID: <1566294517-86418-14-git-send-email-alex.shi@linux.alibaba.com> References: <1566294517-86418-1-git-send-email-alex.shi@linux.alibaba.com> Return-path: In-Reply-To: <1566294517-86418-1-git-send-email-alex.shi@linux.alibaba.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Mel Gorman , Tejun Heo Cc: Alex Shi , Michal Hocko , Kirill Tkhai , Johannes Weiner , Daniel Jordan , Yafang Shao , Yang Shi The lruvec is passed as parameter, so no lruvec->pgdat syncing needed. Signed-off-by: Alex Shi Cc: Andrew Morton Cc: Michal Hocko Cc: Kirill Tkhai Cc: Johannes Weiner Cc: Daniel Jordan Cc: Yafang Shao Cc: Yang Shi Cc: Mel Gorman Cc: cgroups@vger.kernel.org Cc: linux-mm@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