From: Hannes Reinecke <hare@suse.de>
To: Dmitry Monakhov <dmonakhov@openvz.org>,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
martin.petersen@oracle.com
Subject: Re: [PATCH 8/9] bio: add bvec_iter rewind API
Date: Wed, 5 Apr 2017 08:39:59 +0200 [thread overview]
Message-ID: <40f06650-15bd-a4d0-57d2-f3fba12271c1@suse.de> (raw)
In-Reply-To: <1491332201-26926-9-git-send-email-dmonakhov@openvz.org>
On 04/04/2017 08:56 PM, Dmitry Monakhov wrote:
> Some ->bi_end_io handlers (for example: pi_verify or decrypt handlers)
> need to know original data vector, but after bio traverse io-stack it may
> be advanced, splited and relocated many times so it is hard to guess
> original iterator. Let's add 'bi_done' conter which accounts number
> of bytes iterator was advanced during it's evolution. Later end_io handler
> may easily restore original iterator by rewinding iterator to
> iter->bi_done.
>
> Note: this change makes sizeof (struct bvec_iter) multiple to 8
> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
> ---
> include/linux/bio.h | 21 +++++++++++++++++++--
> include/linux/bvec.h | 26 ++++++++++++++++++++++++++
> 2 files changed, 45 insertions(+), 2 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
next prev parent reply other threads:[~2017-04-05 6:40 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-04 18:56 [PATCH 0/9] block: T10/DIF Fixes and cleanups v3 Dmitry Monakhov
2017-04-04 18:56 ` [PATCH 1/9] bio-integrity: Do not allocate integrity context for bio w/o data Dmitry Monakhov
2017-04-05 6:32 ` Hannes Reinecke
2017-04-20 2:34 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 2/9] bio-integrity: bio_trim should truncate integrity vector accordingly Dmitry Monakhov
2017-04-05 6:32 ` Hannes Reinecke
2017-04-20 2:34 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 3/9] bio-integrity: bio_integrity_advance must update integrity seed Dmitry Monakhov
2017-04-05 6:34 ` Hannes Reinecke
2017-04-06 11:35 ` Christoph Hellwig
2017-04-20 2:36 ` Martin K. Petersen
2017-05-03 16:06 ` Dmitry Monakhov
2017-05-03 16:10 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 4/9] bio-integrity: fix interface for bio_integrity_trim v2 Dmitry Monakhov
2017-04-05 6:36 ` Hannes Reinecke
2017-04-06 11:36 ` Christoph Hellwig
2017-04-20 2:38 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 5/9] bio-integrity: fold bio_integrity_enabled to bio_integrity_prep Dmitry Monakhov
2017-04-05 6:37 ` Hannes Reinecke
2017-04-06 11:43 ` Christoph Hellwig
2017-04-20 2:40 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 6/9] T10: Move opencoded contants to common header Dmitry Monakhov
2017-04-05 6:37 ` Hannes Reinecke
2017-04-06 11:44 ` Christoph Hellwig
2017-04-20 2:44 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 7/9] Guard bvec iteration logic v3 Dmitry Monakhov
2017-04-05 6:39 ` Hannes Reinecke
2017-04-06 11:46 ` Christoph Hellwig
2017-04-04 18:56 ` [PATCH 8/9] bio: add bvec_iter rewind API Dmitry Monakhov
2017-04-05 6:39 ` Hannes Reinecke [this message]
2017-04-06 11:49 ` Christoph Hellwig
2017-04-20 2:51 ` Martin K. Petersen
2017-04-04 18:56 ` [PATCH 9/9] bio-integrity: Restore original iterator on verify stage Dmitry Monakhov
2017-04-05 6:41 ` Hannes Reinecke
2017-04-06 11:49 ` Christoph Hellwig
2017-05-02 7:31 ` [PATCH 0/9] block: T10/DIF Fixes and cleanups v3 Christoph Hellwig
2017-05-10 15:28 ` Dmitry Monakhov
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=40f06650-15bd-a4d0-57d2-f3fba12271c1@suse.de \
--to=hare@suse.de \
--cc=dmonakhov@openvz.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=martin.petersen@oracle.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;
as well as URLs for NNTP newsgroup(s).