public inbox for [email protected]
 help / color / mirror / Atom feed
From: Oleg Nesterov <[email protected]>
To: Jens Axboe <[email protected]>
Cc: [email protected], [email protected],
	[email protected], [email protected],
	Stefan Metzmacher <[email protected]>
Subject: Re: [PATCH 2/2] signal: don't allow STOP on PF_IO_WORKER threads
Date: Mon, 22 Mar 2021 17:15:29 +0100	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On 03/20, Jens Axboe wrote:
>
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -2349,6 +2349,10 @@ static bool do_signal_stop(int signr)
>
>  		t = current;
>  		while_each_thread(current, t) {
> +			/* don't STOP PF_IO_WORKER threads */
> +			if (t->flags & PF_IO_WORKER)
> +				continue;
> +

This is not enough. At least task_join_group_stop() should check
PF_IO_WORKER too.

Oleg.


  parent reply	other threads:[~2021-03-22 16:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-20 15:38 [PATCHSET 0/2] PF_IO_WORKER signal tweaks Jens Axboe
2021-03-20 15:38 ` [PATCH 1/2] signal: don't allow sending any signals to PF_IO_WORKER threads Jens Axboe
2021-03-20 16:18   ` Eric W. Biederman
2021-03-20 17:56     ` Linus Torvalds
2021-03-20 21:38       ` Eric W. Biederman
2021-03-20 22:42         ` Jens Axboe
2021-03-21 14:54           ` Eric W. Biederman
2021-03-21 15:40             ` Jens Axboe
2021-03-20 15:38 ` [PATCH 2/2] signal: don't allow STOP on " Jens Axboe
2021-03-20 16:21   ` Eric W. Biederman
2021-03-22 16:18     ` Oleg Nesterov
2021-03-22 16:15   ` Oleg Nesterov [this message]
2021-03-20 16:26 ` [PATCHSET 0/2] PF_IO_WORKER signal tweaks Eric W. Biederman
2021-03-20 17:51   ` Linus Torvalds
2021-03-20 19:18     ` Linus Torvalds
2021-03-20 22:08       ` Eric W. Biederman
2021-03-20 22:53         ` Jens Axboe
2021-03-21 15:18           ` Eric W. Biederman
2021-03-21 15:42             ` Jens Axboe
2021-03-20 22:56       ` Jens Axboe
2021-03-20 17:05 ` kernel test robot
2021-03-20 17:05 ` kernel test robot
2021-03-20 19:10 ` kernel test robot
2021-03-22 16:05 ` 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 \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /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