linux-kernel - Re: [PATCH stable-5.10] io_uring: fix clear IORING_SETUP_R

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Date:   Thu, 15 Jul 2021 15:22:25 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Yang Yingliang <yangyingliang@...wei.com>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        axboe@...nel.dk
Subject: Re: [PATCH stable-5.10] io_uring: fix clear IORING_SETUP_R_DISABLED
 in wrong function

On Thu, Jul 15, 2021 at 09:18:25PM +0800, Yang Yingliang wrote:
> In commit 3ebba796fa25 ("io_uring: ensure that SQPOLL thread is started for exit"),
> the IORING_SETUP_R_DISABLED is cleared in io_sq_offload_start(), but when backport
> it to stable-5.10, IORING_SETUP_R_DISABLED is cleared in __io_req_task_submit(),
> move clearing IORING_SETUP_R_DISABLED to io_sq_offload_start() to fix this.
> 
> Fixes: 6cae8095490ca ("io_uring: ensure that SQPOLL thread is started for exit")
> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> ---
>  fs/io_uring.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

I need an ack from Jens before I can take this...