From: Alex Shi <alex.shi@linux.alibaba.com>
To: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@techsingularity.net>,
Tejun Heo <tj@kernel.org>
Cc: Alex Shi <alex.shi@linux.alibaba.com>,
Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
Jason Gunthorpe <jgg@ziepe.ca>,
Matthew Wilcox <willy@infradead.org>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Peng Fan <peng.fan@nxp.com>, Nikolay Borisov <nborisov@suse.com>,
Ira Weiny <ira.weiny@intel.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>
Subject: [PATCH 10/14] lru/swap: use per lruvec lock in release_pages
Date: Tue, 20 Aug 2019 17:48:33 +0800 [thread overview]
Message-ID: <1566294517-86418-11-git-send-email-alex.shi@linux.alibaba.com> (raw)
In-Reply-To: <1566294517-86418-1-git-send-email-alex.shi@linux.alibaba.com>
Replace pgdat lru_lock with lruvec lru_lock.
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Nikolay Borisov <nborisov@suse.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: cgroups@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
---
mm/swap.c | 40 +++++++++++++++++++++-------------------
1 file changed, 21 insertions(+), 19 deletions(-)
diff --git a/mm/swap.c b/mm/swap.c
index 24a2b3456e10..798bffe7875d 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -724,8 +724,7 @@ void release_pages(struct page **pages, int nr)
{
int i;
LIST_HEAD(pages_to_free);
- struct pglist_data *locked_pgdat = NULL;
- struct lruvec *lruvec;
+ struct lruvec *locked_lruvec = NULL;
unsigned long uninitialized_var(flags);
unsigned int uninitialized_var(lock_batch);
@@ -737,19 +736,19 @@ void release_pages(struct page **pages, int nr)
* excessive with a continuous string of pages from the
* same pgdat. The lock is held only if pgdat != NULL.
*/
- if (locked_pgdat && ++lock_batch == SWAP_CLUSTER_MAX) {
- spin_unlock_irqrestore(&locked_pgdat->lruvec.lru_lock, flags);
- locked_pgdat = NULL;
+ if (locked_lruvec && ++lock_batch == SWAP_CLUSTER_MAX) {
+ spin_unlock_irqrestore(&locked_lruvec->lru_lock, flags);
+ locked_lruvec = NULL;
}
if (is_huge_zero_page(page))
continue;
if (is_zone_device_page(page)) {
- if (locked_pgdat) {
- spin_unlock_irqrestore(&locked_pgdat->lruvec.lru_lock,
+ if (locked_lruvec) {
+ spin_unlock_irqrestore(&locked_lruvec->lru_lock,
flags);
- locked_pgdat = NULL;
+ locked_lruvec = NULL;
}
/*
* ZONE_DEVICE pages that return 'false' from
@@ -766,27 +765,30 @@ void release_pages(struct page **pages, int nr)
continue;
if (PageCompound(page)) {
- if (locked_pgdat) {
- spin_unlock_irqrestore(&locked_pgdat->lruvec.lru_lock, flags);
- locked_pgdat = NULL;
+ if (locked_lruvec) {
+ spin_unlock_irqrestore(&locked_lruvec->lru_lock, flags);
+ locked_lruvec = NULL;
}
__put_compound_page(page);
continue;
}
if (PageLRU(page)) {
+ struct lruvec *lruvec;
struct pglist_data *pgdat = page_pgdat(page);
- if (pgdat != locked_pgdat) {
- if (locked_pgdat)
- spin_unlock_irqrestore(&locked_pgdat->lruvec.lru_lock,
+ lruvec = mem_cgroup_page_lruvec(page, pgdat);
+
+ if (lruvec != locked_lruvec) {
+ if (locked_lruvec)
+ spin_unlock_irqrestore(&locked_lruvec->lru_lock,
flags);
lock_batch = 0;
- locked_pgdat = pgdat;
- spin_lock_irqsave(&locked_pgdat->lruvec.lru_lock, flags);
+ locked_lruvec = lruvec;
+ spin_lock_irqsave(&locked_lruvec->lru_lock, flags);
+ sync_lruvec_pgdat(lruvec, pgdat);
}
- lruvec = mem_cgroup_page_lruvec(page, locked_pgdat);
VM_BUG_ON_PAGE(!PageLRU(page), page);
__ClearPageLRU(page);
del_page_from_lru_list(page, lruvec, page_off_lru(page));
@@ -798,8 +800,8 @@ void release_pages(struct page **pages, int nr)
list_add(&page->lru, &pages_to_free);
}
- if (locked_pgdat)
- spin_unlock_irqrestore(&locked_pgdat->lruvec.lru_lock, flags);
+ if (locked_lruvec)
+ spin_unlock_irqrestore(&locked_lruvec->lru_lock, flags);
mem_cgroup_uncharge_list(&pages_to_free);
free_unref_page_list(&pages_to_free);
--
1.8.3.1
next prev parent reply other threads:[~2019-08-20 9:50 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-20 9:48 [PATCH 00/14] per memcg lru_lock Alex Shi
2019-08-20 9:48 ` [PATCH 01/14] mm/lru: move pgdat lru_lock into lruvec Alex Shi
2019-08-20 13:40 ` Matthew Wilcox
2019-08-20 14:11 ` Alex Shi
2019-08-20 9:48 ` [PATCH 02/14] lru/memcg: move the lruvec->pgdat sync out lru_lock Alex Shi
2019-08-20 9:48 ` [PATCH 03/14] lru/memcg: using per lruvec lock in un/lock_page_lru Alex Shi
2019-08-26 8:30 ` Konstantin Khlebnikov
2019-08-26 14:16 ` Alex Shi
2019-08-20 9:48 ` [PATCH 04/14] lru/compaction: use per lruvec lock in isolate_migratepages_block Alex Shi
2019-08-20 9:48 ` [PATCH 05/14] lru/huge_page: use per lruvec lock in __split_huge_page Alex Shi
2019-08-20 9:48 ` [PATCH 06/14] lru/mlock: using per lruvec lock in munlock Alex Shi
2019-08-20 9:48 ` [PATCH 07/14] lru/swap: using per lruvec lock in page_cache_release Alex Shi
2019-08-20 9:48 ` [PATCH 08/14] lru/swap: uer lruvec lock in activate_page Alex Shi
2019-08-20 9:48 ` [PATCH 09/14] lru/swap: uer per lruvec lock in pagevec_lru_move_fn Alex Shi
2019-08-20 9:48 ` Alex Shi [this message]
2019-08-20 9:48 ` [PATCH 11/14] lru/vmscan: using per lruvec lock in lists shrinking Alex Shi
2019-08-20 9:48 ` [PATCH 12/14] lru/vmscan: use pre lruvec lock in check_move_unevictable_pages Alex Shi
2019-08-20 9:48 ` [PATCH 13/14] lru/vmscan: using per lruvec lru_lock in get_scan_count Alex Shi
2019-08-20 9:48 ` [PATCH 14/14] mm/lru: fix the comments of lru_lock Alex Shi
2019-08-20 14:00 ` Matthew Wilcox
2019-08-20 14:21 ` Alex Shi
2019-08-20 10:45 ` [PATCH 00/14] per memcg lru_lock Michal Hocko
2019-08-20 16:48 ` Shakeel Butt
2019-08-20 18:24 ` Hugh Dickins
2019-08-21 1:21 ` Alex Shi
2019-08-21 2:00 ` Alex Shi
2019-08-24 1:59 ` Hugh Dickins
2019-08-26 14:35 ` Alex Shi
2019-08-21 18:00 ` Daniel Jordan
2019-08-22 11:56 ` Alex Shi
2019-08-22 15:20 ` Daniel Jordan
2019-08-26 8:39 ` Konstantin Khlebnikov
2019-08-26 14:22 ` Alex Shi
2019-08-26 14:25 ` Alex Shi
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