From: Johannes Thumshirn <jthumshirn@suse.de>
To: Ming Lei <ming.lei@redhat.com>
Cc: Nikolay Borisov <nborisov@suse.com>, Jens Axboe <axboe@kernel.dk>,
Omar Sandoval <osandov@osandov.com>,
linux-block@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Possible bio merging breakage in mp bio rework
Date: Mon, 8 Apr 2019 12:22:22 +0200 [thread overview]
Message-ID: <b9a33021-bb4f-1f11-13c9-80a5d39e2004@suse.de> (raw)
In-Reply-To: <20190408101903.GC19589@ming.t460p>
On 08/04/2019 12:19, Ming Lei wrote:
> bio_add_page() is absolutely the fast path, and it is much more efficient
> to apply the limit just once in the queue's .make_request_fn.
You're right, this makes sense.
Thanks,
Johannes
--
Johannes Thumshirn SUSE Labs Filesystems
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Mary Higgins, Sri Rasiah
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
prev parent reply other threads:[~2019-04-08 10:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-05 16:04 Nikolay Borisov
2019-04-06 0:16 ` Ming Lei
2019-04-06 6:09 ` Nikolay Borisov
2019-04-06 8:00 ` Qu Wenruo
2019-04-06 12:30 ` Ming Lei
2019-04-08 9:52 ` Johannes Thumshirn
2019-04-08 10:19 ` Ming Lei
2019-04-08 10:22 ` Johannes Thumshirn [this message]
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=b9a33021-bb4f-1f11-13c9-80a5d39e2004@suse.de \
--to=jthumshirn@suse.de \
--cc=axboe@kernel.dk \
--cc=linux-block@vger.kernel.org \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ming.lei@redhat.com \
--cc=nborisov@suse.com \
--cc=osandov@osandov.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
all inboxes | Powered by JetHome®