From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "tj@kernel.org" <tj@kernel.org>
Cc: "hch@lst.de" <hch@lst.de>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"axboe@kernel.dk" <axboe@kernel.dk>
Subject: Re: [PATCH v2] blk-mq: Fix race between resetting the timer and completion handling
Date: Wed, 7 Feb 2018 17:27:10 +0000 [thread overview]
Message-ID: <1518024428.2870.35.camel@wdc.com> (raw)
In-Reply-To: <20180207170612.GB695913@devbig577.frc2.facebook.com>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next prev parent reply other threads:[~2018-02-07 17:27 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-07 1:11 [PATCH v2] blk-mq: Fix race between resetting the timer and completion handling Bart Van Assche
2018-02-07 17:06 ` Tejun Heo
2018-02-07 17:27 ` Bart Van Assche [this message]
2018-02-07 17:35 ` tj
2018-02-07 18:14 ` Bart Van Assche
2018-02-07 20:07 ` tj
2018-02-07 23:48 ` Bart Van Assche
2018-02-08 1:09 ` Bart Van Assche
2018-02-08 15:39 ` tj
2018-02-08 15:40 ` tj
2018-02-08 16:31 ` Bart Van Assche
2018-02-08 17:00 ` tj
2018-02-08 17:10 ` Bart Van Assche
2018-02-08 17:19 ` tj
2018-02-08 17:37 ` Bart Van Assche
2018-02-08 17:40 ` tj
2018-02-08 17:48 ` Bart Van Assche
2018-02-08 17:54 ` tj
2018-02-13 21:20 ` tj
2018-02-14 16:58 ` Bart Van Assche
2018-02-18 13:11 ` tj
2018-02-21 18:53 ` Bart Van Assche
2018-02-21 19:21 ` tj
2018-02-21 22:55 ` Bart Van Assche
2018-02-07 19:03 ` Bart Van Assche
2018-02-07 20:09 ` tj
2018-02-07 21:02 ` Bart Van Assche
2018-02-07 21:40 ` tj
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=1518024428.2870.35.camel@wdc.com \
--to=bart.vanassche@wdc.com \
--cc=axboe@kernel.dk \
--cc=hch@lst.de \
--cc=linux-block@vger.kernel.org \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox