Re: [PATCH] block: ublk: check IO buffer based on flag need_get_data

From: Jens Axboe
Date: Mon Feb 13 2023 - 10:36:56 EST



On Fri, 10 Feb 2023 09:13:56 -0500, Liu Xiaodong wrote:
> Currently, uring_cmd with UBLK_IO_FETCH_REQ or
> UBLK_IO_COMMIT_AND_FETCH_REQ is always checked whether
> userspace server has provided IO buffer even flag
> UBLK_F_NEED_GET_DATA is configured.
>
> This is a excessive check. If UBLK_F_NEED_GET_DATA is
> configured, FETCH_RQ doesn't need to provide IO buffer;
> COMMIT_AND_FETCH_REQ also doesn't need to do that if
> the IO type is not READ.
>
> [...]

Applied, thanks!

[1/1] block: ublk: check IO buffer based on flag need_get_data
commit: 2f1e07dda1e1310873647abc40bbc49eaf3b10e3

Best regards,
--
Jens Axboe