linux-kernel - Re: [PATCH] ublk: allow non-blocking ctrl cmds in IO_URING_F

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Message-Id: <176530089007.83150.7264093177786219301.b4-ty@kernel.dk>
Date: Tue, 09 Dec 2025 10:21:30 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Ming Lei <ming.lei@...hat.com>, 
 Caleb Sander Mateos <csander@...estorage.com>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ublk: allow non-blocking ctrl cmds in
 IO_URING_F_NONBLOCK issue


On Mon, 01 Dec 2025 14:41:44 -0700, Caleb Sander Mateos wrote:
> Handling most of the ublksrv_ctrl_cmd opcodes require locking a mutex,
> so ublk_ctrl_uring_cmd() bails out with EAGAIN when called with the
> IO_URING_F_NONBLOCK issue flag. However, several opcodes can be handled
> without blocking:
> - UBLK_CMD_GET_QUEUE_AFFINITY
> - UBLK_CMD_GET_DEV_INFO
> - UBLK_CMD_GET_DEV_INFO2
> - UBLK_U_CMD_GET_FEATURES
> 
> [...]

Applied, thanks!

[1/1] ublk: allow non-blocking ctrl cmds in IO_URING_F_NONBLOCK issue
      commit: 87213b0d847cd300285b5545598e0548baeb5208

Best regards,
-- 
Jens Axboe