From: Zhou Chengming <zhouchengming1@huawei.com>
To: <axboe@kernel.dk>
Cc: <linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<miaoxie@huawei.com>, <zhouchengming1@huawei.com>
Subject: [PATCH] don't forget to call pd_online_fn when activate policy
Date: Wed, 8 Mar 2017 12:09:47 +0800 [thread overview]
Message-ID: <1488946187-42760-1-git-send-email-zhouchengming1@huawei.com> (raw)
From: z00354408 <z00354408@notesmail.huawei.com>
Signed-off-by: z00354408 <z00354408@notesmail.huawei.com>
---
block/blk-cgroup.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 8ba0af7..0dd9e76 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1254,6 +1254,12 @@ int blkcg_activate_policy(struct request_queue *q,
pd->plid = pol->plid;
if (pol->pd_init_fn)
pol->pd_init_fn(pd);
+
+ if (pol->pd_online_fn) {
+ spin_lock(blkg->blkcg->lock);
+ pol->pd_online_fn(pd);
+ spin_unlock(blkg->blkcg->lock);
+ }
}
__set_bit(pol->plid, q->blkcg_pols);
--
1.8.3.1
next reply other threads:[~2017-03-08 4:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 4:09 Zhou Chengming [this message]
2017-03-08 22:09 ` [PATCH] don't forget to call pd_online_fn when activate policy Jens Axboe
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=1488946187-42760-1-git-send-email-zhouchengming1@huawei.com \
--to=zhouchengming1@huawei.com \
--cc=axboe@kernel.dk \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=miaoxie@huawei.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox