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 ` [PATCH] mm/page-writeback: Use __this_cpu_inc() in account_page_dirtied() Jan Kara
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210512144742.4764-1-wuchi.zero@gmail.com \
--to=wuchi.zero@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=axboe@fb.com \
--cc=hcochran@kernelspring.com \
--cc=jack@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mszeredi@redhat.com \
--cc=sedat.dilek@gmail.com \
--cc=tj@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.