Messages in this thread Patch in this message | | | From | Alex Shi <> | Subject | [PATCH 07/14] lru/swap: using per lruvec lock in page_cache_release | Date | Tue, 20 Aug 2019 17:48:30 +0800 |
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Also cares the lruvec->pgdat syncing.
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 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/mm/swap.c b/mm/swap.c index 63f4782af57a..2a8fe6df08fc 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -63,12 +63,13 @@ static void __page_cache_release(struct page *page) struct lruvec *lruvec; unsigned long flags; - spin_lock_irqsave(&pgdat->lruvec.lru_lock, flags); lruvec = mem_cgroup_page_lruvec(page, pgdat); + spin_lock_irqsave(&lruvec->lru_lock, flags); + sync_lruvec_pgdat(lruvec, pgdat); VM_BUG_ON_PAGE(!PageLRU(page), page); __ClearPageLRU(page); del_page_from_lru_list(page, lruvec, page_off_lru(page)); - spin_unlock_irqrestore(&pgdat->lruvec.lru_lock, flags); + spin_unlock_irqrestore(&lruvec->lru_lock, flags); } __ClearPageWaiters(page); mem_cgroup_uncharge(page); -- 1.8.3.1
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