From: Petr Mladek <pmladek@suse.com>
To: Luis Chamberlain <mcgrof@kernel.org>
Cc: Petr Pavlu <petr.pavlu@suse.com>,
linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] module: Correct wake up of module_wq
Date: Fri, 14 Oct 2022 10:40:41 +0200 [thread overview]
Message-ID: <Y0kgiafwcH8RY2qc@alley> (raw)
In-Reply-To: <YzdQAWa5eRtfOwHl@bombadil.infradead.org>
On Fri 2022-09-30 13:22:25, Luis Chamberlain wrote:
> On Mon, Sep 19, 2022 at 02:32:32PM +0200, Petr Pavlu wrote:
> > The module_wq wait queue has only non-exclusive waiters and all waits
> > are interruptible, therefore for consistency use wake_up_interruptible()
> > to wake its waiters.
> >
> > Suggested-by: Petr Mladek <pmladek@suse.com>
> > Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
>
> Does this fix a bug? It seems like it does. Please think of this should
> go to stable, for instance, does it fix a bug not yet reported?
It is rather a clean up. It should not change the existing behavior.
wake_up_all() is needed only in special situations when
exclusive waiters are used. Also wake_up_*() variant should match
the related wait_for_completion_*() variants.
The patch looks good:
Reviewed-by: Petr Mladek <pmladek@suse.com>
Best Regards,
Petr
next prev parent reply other threads:[~2022-10-14 8:40 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 12:32 [PATCH v2 0/2] module: Merge same-name module load requests Petr Pavlu
2022-09-19 12:32 ` [PATCH v2 1/2] module: Correct wake up of module_wq Petr Pavlu
2022-09-30 20:22 ` Luis Chamberlain
2022-10-14 8:40 ` Petr Mladek [this message]
2022-09-19 12:32 ` [PATCH v2 2/2] module: Merge same-name module load requests Petr Pavlu
2022-09-30 20:30 ` Luis Chamberlain
2022-10-15 9:27 ` Petr Pavlu
2022-10-18 18:33 ` Luis Chamberlain
2022-10-18 19:19 ` Prarit Bhargava
2022-10-18 19:53 ` Prarit Bhargava
2022-10-20 7:19 ` Petr Mladek
2022-10-24 13:22 ` Prarit Bhargava
2022-10-24 17:08 ` Luis Chamberlain
2022-10-24 12:37 ` Petr Pavlu
2022-10-24 14:00 ` Prarit Bhargava
2022-11-13 16:44 ` Petr Pavlu
2022-10-19 12:00 ` Petr Pavlu
2022-10-20 7:03 ` Petr Mladek
2022-10-24 17:53 ` Luis Chamberlain
2022-11-12 1:47 ` Luis Chamberlain
2022-11-14 8:57 ` David Hildenbrand
2022-11-14 15:38 ` Luis Chamberlain
2022-11-14 15:45 ` David Hildenbrand
2022-11-15 19:29 ` Luis Chamberlain
2022-11-16 16:03 ` Prarit Bhargava
2022-11-21 16:00 ` Petr Pavlu
2022-11-21 19:03 ` Luis Chamberlain
2022-11-21 19:50 ` David Hildenbrand
2022-11-21 20:27 ` Luis Chamberlain
2022-11-22 13:59 ` Petr Pavlu
2022-11-22 17:58 ` Luis Chamberlain
2022-11-16 16:04 ` David Hildenbrand
2022-11-18 17:32 ` David Hildenbrand
2022-11-28 16:29 ` Prarit Bhargava
2022-11-29 13:13 ` Petr Pavlu
2022-12-02 16:36 ` Petr Mladek
2022-12-06 12:31 ` Prarit Bhargava
2022-12-07 13:23 ` Petr Pavlu
2022-12-04 19:58 ` Prarit Bhargava
2022-10-14 7:54 ` David Hildenbrand
2022-10-15 9:49 ` Petr Pavlu
2022-10-14 13:52 ` Petr Mladek
2022-10-16 12:25 ` Petr Pavlu
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