From: Oleg Nesterov <oleg@redhat.com>
To: Pavel Begunkov <asml.silence@gmail.com>
Cc: Tejun Heo <tj@kernel.org>,
io-uring@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
Andrew Morton <akpm@linux-foundation.org>,
Christian Brauner <brauner@kernel.org>,
Tycho Andersen <tandersen@netflix.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, Julian Orth <ju.orth@gmail.com>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 2/2] kernel: rerun task_work while freezing in get_signal()
Date: Tue, 9 Jul 2024 21:38:29 +0200 [thread overview]
Message-ID: <20240709193828.GC3892@redhat.com> (raw)
In-Reply-To: <d2667002-1631-4f42-8aad-a9ea56c0762b@gmail.com>
On 07/09, Pavel Begunkov wrote:
>
> On 7/9/24 20:07, Oleg Nesterov wrote:
> >Hi Tejun,
> >
> >Thanks for looking at this, can you review this V2 patch from Pavel?
Just in case, I obviously meant our next (V2) patch
[PATCH v2 2/2] kernel: rerun task_work while freezing in get_signal()
https://lore.kernel.org/all/149ff5a762997c723880751e8a4019907a0b6457.1720534425.git.asml.silence@gmail.com/
> >Well, I don't really understand what can snapshot/restore actually mean...
>
> CRIU, I assume. I'll try it ...
Than I think we can forget about task_works and this patch. CRIU dumps
the tasks in TASK_TRACED state.
> ... but I'm inclined to think the patch makes sense regardless,
> we're replacing an infinite loop with wait-wake-execute-wait.
Agreed.
Oleg.
next prev parent reply other threads:[~2024-07-09 19:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-07 16:32 [PATCH 0/2] fix task_work interation with freezing Pavel Begunkov
2024-07-07 16:32 ` [PATCH 1/2] io_uring/io-wq: limit retrying worker initialisation Pavel Begunkov
2024-07-07 16:32 ` [PATCH 2/2] kernel: rerun task_work while freezing in get_signal() Pavel Begunkov
2024-07-08 10:42 ` Oleg Nesterov
2024-07-08 15:40 ` Pavel Begunkov
2024-07-08 18:48 ` Peter Zijlstra
2024-07-09 10:36 ` Oleg Nesterov
2024-07-09 14:05 ` Pavel Begunkov
2024-07-09 16:39 ` Tejun Heo
2024-07-09 19:07 ` Oleg Nesterov
2024-07-09 19:26 ` Pavel Begunkov
2024-07-09 19:38 ` Oleg Nesterov [this message]
2024-07-09 19:55 ` Pavel Begunkov
2024-07-10 0:54 ` Tejun Heo
2024-07-10 17:53 ` Pavel Begunkov
2024-07-10 19:10 ` Oleg Nesterov
2024-07-10 19:20 ` Tejun Heo
2024-07-10 21:34 ` Oleg Nesterov
2024-07-10 22:01 ` Tejun Heo
2024-07-10 22:17 ` Oleg Nesterov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240709193828.GC3892@redhat.com \
--to=oleg@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=asml.silence@gmail.com \
--cc=axboe@kernel.dk \
--cc=brauner@kernel.org \
--cc=io-uring@vger.kernel.org \
--cc=ju.orth@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=tandersen@netflix.com \
--cc=tglx@linutronix.de \
--cc=tj@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox