From: Ming Lei <[email protected]>
To: Keith Busch <[email protected]>
Cc: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
Keith Busch <[email protected]>
Subject: Re: [PATCHv5 09/11] ublk: zc register/unregister bvec
Date: Wed, 26 Feb 2025 16:15:39 +0800 [thread overview]
Message-ID: <Z77Nq_5ZGxUjxkau@fedora> (raw)
In-Reply-To: <[email protected]>
On Mon, Feb 24, 2025 at 01:31:14PM -0800, Keith Busch wrote:
> From: Keith Busch <[email protected]>
>
> Provide new operations for the user to request mapping an active request
> to an io uring instance's buf_table. The user has to provide the index
> it wants to install the buffer.
>
> A reference count is taken on the request to ensure it can't be
> completed while it is active in a ring's buf_table.
>
> Signed-off-by: Keith Busch <[email protected]>
> ---
Looks IO_LINK doesn't work, and UNREG_BUF cqe can be received from userspace.
It is triggered reliably in the ublk selftests(test_loop_03.sh) I just post out:
https://lore.kernel.org/linux-block/[email protected]/T/#m3adfecbfa33de9f9f728ccb4ab1185091be34797
Thanks,
Ming
next prev parent reply other threads:[~2025-02-26 8:16 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-24 21:31 [PATCHv5 00/11] ublk zero copy support Keith Busch
2025-02-24 21:31 ` [PATCHv5 01/11] io_uring/rsrc: remove redundant check for valid imu Keith Busch
2025-02-25 8:37 ` Ming Lei
2025-02-25 13:13 ` Pavel Begunkov
2025-02-24 21:31 ` [PATCHv5 02/11] io_uring/nop: reuse req->buf_index Keith Busch
2025-02-24 23:30 ` Jens Axboe
2025-02-25 0:02 ` Keith Busch
2025-02-25 8:43 ` Ming Lei
2025-02-25 13:13 ` Pavel Begunkov
2025-02-24 21:31 ` [PATCHv5 03/11] io_uring/net: reuse req->buf_index for sendzc Keith Busch
2025-02-25 8:44 ` Ming Lei
2025-02-25 13:14 ` Pavel Begunkov
2025-02-24 21:31 ` [PATCHv5 04/11] io_uring/nvme: pass issue_flags to io_uring_cmd_import_fixed() Keith Busch
2025-02-25 8:52 ` Ming Lei
2025-02-24 21:31 ` [PATCHv5 05/11] io_uring: combine buffer lookup and import Keith Busch
2025-02-25 8:55 ` Ming Lei
2025-02-24 21:31 ` [PATCHv5 06/11] io_uring/rw: move fixed buffer import to issue path Keith Busch
2025-02-25 9:26 ` Ming Lei
2025-02-25 13:57 ` Pavel Begunkov
2025-02-25 20:57 ` Caleb Sander Mateos
2025-02-25 21:16 ` Keith Busch
2025-02-24 21:31 ` [PATCHv5 07/11] io_uring: add support for kernel registered bvecs Keith Busch
2025-02-25 9:40 ` Ming Lei
2025-02-25 17:32 ` Keith Busch
2025-02-25 22:47 ` Ming Lei
2025-02-25 22:55 ` Keith Busch
2025-02-25 14:00 ` Pavel Begunkov
2025-02-25 14:05 ` Pavel Begunkov
2025-02-25 20:58 ` Caleb Sander Mateos
2025-02-24 21:31 ` [PATCHv5 08/11] nvme: map uring_cmd data even if address is 0 Keith Busch
2025-02-25 9:41 ` Ming Lei
2025-02-24 21:31 ` [PATCHv5 09/11] ublk: zc register/unregister bvec Keith Busch
2025-02-25 11:00 ` Ming Lei
2025-02-25 16:35 ` Keith Busch
2025-02-25 22:56 ` Ming Lei
2025-02-25 16:19 ` Pavel Begunkov
2025-02-25 16:27 ` Keith Busch
2025-02-25 16:42 ` Pavel Begunkov
2025-02-25 16:52 ` Keith Busch
2025-02-27 4:16 ` Ming Lei
2025-02-25 21:14 ` Caleb Sander Mateos
2025-02-26 8:15 ` Ming Lei [this message]
2025-02-26 17:10 ` Keith Busch
2025-02-27 4:19 ` Ming Lei
2025-02-24 21:31 ` [PATCHv5 10/11] io_uring: add abstraction for buf_table rsrc data Keith Busch
2025-02-25 16:04 ` Pavel Begunkov
2025-02-24 21:31 ` [PATCHv5 11/11] io_uring: cache nodes and mapped buffers Keith Busch
2025-02-25 13:11 ` Pavel Begunkov
2025-02-25 14:10 ` [PATCHv5 00/11] ublk zero copy support Pavel Begunkov
2025-02-25 14:47 ` Jens Axboe
2025-02-25 15:07 ` (subset) " Jens Axboe
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