linux-kernel - Re: [PATCH 04/17] ublk: add helpers to check ublk

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Message-ID: <aM5rvjGN68iwIixV@fedora>
Date: Sat, 20 Sep 2025 16:54:22 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Caleb Sander Mateos <csander@...estorage.com>
Cc: Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 04/17] ublk: add helpers to check ublk_device flags

On Wed, Sep 17, 2025 at 07:49:40PM -0600, Caleb Sander Mateos wrote:
> Introduce ublk_device analogues of the ublk_queue flag helpers:
> - ublk_support_zero_copy() -> ublk_dev_support_user_copy()
> - ublk_support_auto_buf_reg() -> ublk_dev_support_auto_buf_reg()
> - ublk_support_user_copy() -> ublk_dev_support_user_copy()
> - ublk_need_map_io() -> ublk_dev_need_map_io()
> - ublk_need_req_ref() -> ublk_dev_need_req_ref()
> - ublk_need_get_data() -> ublk_dev_need_get_data()
> 
> These will be used in subsequent changes to avoid accessing the
> ublk_queue just for the flags, and instead use the ublk_device.
> 
> Signed-off-by: Caleb Sander Mateos <csander@...estorage.com>

Reviewed-by: Ming Lei <ming.lei@...hat.com>

Thanks,
Ming