From: Chi Wu <wuchi.zero@gmail.com>
To: akpm@linux-foundation.org
Cc: axboe@fb.com, hcochran@kernelspring.com, jack@suse.cz,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
mszeredi@redhat.com, sedat.dilek@gmail.com, tj@kernel.org,
Chi Wu <wuchi.zero@gmail.com>
Subject: [PATCH] mm/page-writeback: Use __this_cpu_inc() in account_page_dirtied()
Date: Wed, 12 May 2021 22:47:42 +0800 [thread overview]
Message-ID: <20210512144742.4764-1-wuchi.zero@gmail.com> (raw)
As account_page_dirtied() was always protected by xa_lock_irqsave(),
so using __this_cpu_inc() is better.
Signed-off-by: Chi Wu <wuchi.zero@gmail.com>
---
mm/page-writeback.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 0062d5c57d41..e3901d0d329e 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2436,7 +2436,7 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
inc_wb_stat(wb, WB_DIRTIED);
task_io_account_write(PAGE_SIZE);
current->nr_dirtied++;
- this_cpu_inc(bdp_ratelimits);
+ __this_cpu_inc(bdp_ratelimits);
mem_cgroup_track_foreign_dirty(page, wb);
}
--
2.17.1
next reply other threads:[~2021-05-12 14:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 14:47 Chi Wu [this message]
2021-05-13 8:22 ` Jan Kara
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