From: Jens Axboe <axboe@kernel.dk>
To: weiping <zhangweiping@didichuxing.com>
Cc: linux-block@vger.kernel.org
Subject: Re: [PATCH] blk-mq: only alloc hctx point as many as nr_hw_queues
Date: Thu, 13 Jul 2017 10:14:31 -0600 [thread overview]
Message-ID: <e03b2bfa-15d3-3d27-15cf-07e65882fc25@kernel.dk> (raw)
In-Reply-To: <20170713161020.GA10325@bogon.didichuxing.com>
On 07/13/2017 10:10 AM, weiping zhang wrote:
> one hw queue only has one hctx, reduce it's number same as nr_hw_queues.
What happens if a device registers with eg 4 hw queues, then later
calls blk_mq_update_nr_hw_queues()?
--
Jens Axboe
next prev parent reply other threads:[~2017-07-13 16:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-13 16:10 [PATCH] blk-mq: only alloc hctx point as many as nr_hw_queues weiping zhang
2017-07-13 16:14 ` Jens Axboe [this message]
2017-07-13 16:30 ` weiping zhang
2017-07-13 16:38 ` 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=e03b2bfa-15d3-3d27-15cf-07e65882fc25@kernel.dk \
--to=axboe@kernel.dk \
--cc=linux-block@vger.kernel.org \
--cc=zhangweiping@didichuxing.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