From: Jens Axboe <axboe@kernel.dk>
To: Ming Lei <ming.lei@redhat.com>,
Caleb Sander Mateos <csander@purestorage.com>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ublk: update UBLK_F_SUPPORT_ZERO_COPY comment in UAPI header
Date: Tue, 24 Jun 2025 08:51:40 -0600 [thread overview]
Message-ID: <175077670063.72735.9246578539653895274.b4-ty@kernel.dk> (raw)
In-Reply-To: <20250621171015.354932-1-csander@purestorage.com>
On Sat, 21 Jun 2025 11:10:14 -0600, Caleb Sander Mateos wrote:
> UBLK_F_SUPPORT_ZERO_COPY has a very old comment describing the initial
> idea for how zero-copy would be implemented. The actual implementation
> added in commit 1f6540e2aabb ("ublk: zc register/unregister bvec") uses
> io_uring registered buffers rather than shared memory mapping.
> Remove the inaccurate remarks about mapping ublk request memory into the
> ublk server's address space and requiring 4K block size. Replace them
> with a description of the current zero-copy mechanism.
>
> [...]
Applied, thanks!
[1/1] ublk: update UBLK_F_SUPPORT_ZERO_COPY comment in UAPI header
commit: c770c2e2b53b468d5eb124e7daabdb4a8471f442
Best regards,
--
Jens Axboe
prev parent reply other threads:[~2025-06-24 14:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-21 17:10 Caleb Sander Mateos
2025-06-23 1:41 ` Ming Lei
2025-06-24 14:51 ` Jens Axboe [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=175077670063.72735.9246578539653895274.b4-ty@kernel.dk \
--to=axboe@kernel.dk \
--cc=csander@purestorage.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ming.lei@redhat.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®