From: Jinyoung CHOI <j-young.choi@samsung.com>
To: "hch@lst.de" <hch@lst.de>
Cc: "kbusch@kernel.org" <kbusch@kernel.org>,
"axboe@fb.com" <axboe@fb.com>,
"sagi@grimberg.me" <sagi@grimberg.me>,
"chaitanya.kulkarni@wdc.com" <chaitanya.kulkarni@wdc.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>
Subject: RE:(2) [PATCH 2/2] nvme-pci: fix metadata mapping length
Date: Wed, 12 Apr 2023 16:12:30 +0900 [thread overview]
Message-ID: <20230412071230epcms2p145d53bfc8e40eede25f282b80247218c@epcms2p1> (raw)
In-Reply-To: <20230412065736.GB20550@lst.de>
>> Even if the memory allocated for integrity is physically continuous,
>> struct bio_vec is composed separately for each page size.
>> In order not to use the blk_rq_map_integrity_sg(), the length of the
>> DMA mapping should be the total size of integrity payload.
>
> Hmm, looking outside the bio_vec is pretty nasty.
>
> I think the problem here is that bio_integrity_add_page should
> just add to the existing bvec, similar to bio_add_page and friends.
I agree with you.
I think the problem is bio_integrity_add_page().
If it is modified, sg functions for blk-integrity should also
be modified.
If you think the blk-integrity modification is better,
I will send an mail to block mailing after modifying it.
Best Regards.
Jinyoung.
next prev parent reply other threads:[~2023-04-12 7:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20230412052443epcms2p836b669a12c4e81368bec2cd340656f73@epcms2p8>
2023-04-12 5:24 ` [PATCH 2/2] nvme-pci: fix metadata mapping length Jinyoung CHOI
2023-04-12 6:57 ` hch
2023-04-13 1:34 ` Martin K. Petersen
[not found] ` <CGME20230412052443epcms2p836b669a12c4e81368bec2cd340656f73@epcms2p1>
2023-04-12 7:12 ` Jinyoung CHOI [this message]
2023-04-12 11:49 ` (2) " hch
2023-04-13 1:37 ` Martin K. Petersen
[not found] ` <CGME20230412052443epcms2p836b669a12c4e81368bec2cd340656f73@epcms2p3>
2023-04-13 2:19 ` Jinyoung CHOI
2023-04-13 2:26 ` (2) " Martin K. Petersen
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=20230412071230epcms2p145d53bfc8e40eede25f282b80247218c@epcms2p1 \
--to=j-young.choi@samsung.com \
--cc=axboe@fb.com \
--cc=chaitanya.kulkarni@wdc.com \
--cc=hch@lst.de \
--cc=kbusch@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=martin.petersen@oracle.com \
--cc=sagi@grimberg.me \
/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).