From: Jens Axboe <[email protected]>
To: [email protected], Ming Lei <[email protected]>
Cc: Kanchan Joshi <[email protected]>
Subject: Re: [PATCH] io_uring: complete request via task work in case of DEFER_TASKRUN
Date: Fri, 14 Apr 2023 06:39:30 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On Fri, 14 Apr 2023 15:53:13 +0800, Ming Lei wrote:
> So far io_req_complete_post() only covers DEFER_TASKRUN by completing
> request via task work when the request is completed from IOWQ.
>
> However, uring command could be completed from any context, and if io
> uring is setup with DEFER_TASKRUN, the command is required to be
> completed from current context, otherwise wait on IORING_ENTER_GETEVENTS
> can't be wakeup, and may hang forever.
>
> [...]
Applied, thanks!
[1/1] io_uring: complete request via task work in case of DEFER_TASKRUN
commit: 860e1c7f8b0b43fbf91b4d689adfaa13adb89452
Best regards,
--
Jens Axboe
next prev parent reply other threads:[~2023-04-14 12:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20230414075422epcas5p3ae5de53e643a448f19df82a7a1d5cd1c@epcas5p3.samsung.com>
2023-04-14 7:53 ` [PATCH] io_uring: complete request via task work in case of DEFER_TASKRUN Ming Lei
2023-04-14 11:52 ` Kanchan Joshi
2023-04-14 12:39 ` Jens Axboe [this message]
2023-04-14 13:01 ` Pavel Begunkov
2023-04-14 13:53 ` Ming Lei
2023-04-14 14:13 ` Kanchan Joshi
2023-04-14 14:53 ` Ming Lei
2023-04-14 15:07 ` Pavel Begunkov
2023-04-14 15:42 ` Ming Lei
2023-04-15 23:15 ` Pavel Begunkov
2023-04-16 10:05 ` Ming Lei
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