From: Jens Axboe <[email protected]>
To: Pavel Begunkov <[email protected]>, [email protected]
Subject: Re: [PATCH 0/5] fixes for REQ_F_COMP_LOCKED
Date: Tue, 13 Oct 2020 09:14:09 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 10/13/20 2:43 AM, Pavel Begunkov wrote:
> This removes REQ_F_COMP_LOCKED to fix a couple of problems with it.
>
> [5/5] is harsh and some work should be done to ease the aftermath,
> i.e. io_submit_flush_completions() and maybe fail_links().
>
> Another way around would be to replace the flag with an comp_locked
> argument in put_req(), free_req() and so on, but IMHO in a long run
> removing it should be better.
>
> note: there is a new io_req_task_work_add() call in [5/5]. Jens,
> could you please verify whether passed @twa_signal_ok=true is ok,
> because I don't really understand the difference.
As mentioned in the other email, looks good to me.
Thanks, I have applied the series.
--
Jens Axboe
prev parent reply other threads:[~2020-10-13 15:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-13 8:43 [PATCH 0/5] fixes for REQ_F_COMP_LOCKED Pavel Begunkov
2020-10-13 8:43 ` [PATCH 1/5] io_uring: don't set COMP_LOCKED if won't put Pavel Begunkov
2020-10-13 8:43 ` [PATCH 2/5] io_uring: don't unnecessarily clear F_LINK_TIMEOUT Pavel Begunkov
2020-10-13 8:43 ` [PATCH 3/5] io_uring: don't put a poll req under spinlock Pavel Begunkov
2020-10-13 14:54 ` Jens Axboe
2020-10-13 8:43 ` [PATCH 4/5] io_uring: dig out COMP_LOCK from deep call chain Pavel Begunkov
2020-10-13 8:44 ` [PATCH 5/5] io_uring: fix REQ_F_COMP_LOCKED by killing it Pavel Begunkov
2020-10-13 9:46 ` [PATCH 0/5] fixes for REQ_F_COMP_LOCKED Pavel Begunkov
2020-10-13 14:57 ` Jens Axboe
2020-10-13 17:02 ` Pavel Begunkov
2020-10-13 15:14 ` Jens Axboe [this message]
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