From: Oleg Nesterov <oleg@redhat.com>
To: Mandeep Singh Baines <msb@chromium.org>
Cc: linux-kernel@vger.kernel.org, Tejun Heo <tj@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>, Ingo Molnar <mingo@redhat.com>
Subject: Re: [PATCH 4/5] freezer: clear fake signal on exit from __refrigerator
Date: Sat, 16 Feb 2013 18:12:28 +0100 [thread overview]
Message-ID: <20130216171228.GF4910@redhat.com> (raw)
In-Reply-To: <20130216170644.GD4910@redhat.com>
Forgot to mention...
On 02/16, Oleg Nesterov wrote:
> On 02/16, Mandeep Singh Baines wrote:
> >
> > --- a/kernel/freezer.c
> > +++ b/kernel/freezer.c
> > @@ -81,6 +81,9 @@ bool __refrigerator(bool check_kthr_stop)
> > */
> > set_current_state(save);
> >
> > + /* Clear fake signal from freeze_task(). */
> > + recalc_sigpending();
>
> NACK. We can't do this lockless.
>
> And I am not sure we should reinstantiate it here.
And note that with the fix I propose in reply to 5/5 this change is
not needed.
Oleg.
next prev parent reply other threads:[~2013-02-16 17:13 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-16 9:53 [PATCH 1/5] vfork: don't freezer_count() for in-kernel users of CLONE_VFORK Mandeep Singh Baines
2013-02-16 9:53 ` [PATCH 2/5] lockdep: check that no locks held at freeze time Mandeep Singh Baines
2013-02-16 17:06 ` Oleg Nesterov
2013-02-20 1:57 ` [PATCH v3] " Mandeep Singh Baines
2013-02-20 10:37 ` Ingo Molnar
2013-02-20 12:55 ` Rafael J. Wysocki
2013-02-20 13:52 ` Ingo Molnar
2013-02-20 22:30 ` Oleg Nesterov
2013-02-20 23:11 ` Mandeep Singh Baines
2013-02-20 23:17 ` [PATCH v4] " Mandeep Singh Baines
2013-02-20 23:24 ` Andrew Morton
2013-02-21 0:17 ` Mandeep Singh Baines
2013-02-21 0:20 ` Andrew Morton
2013-02-21 0:28 ` Mandeep Singh Baines
2013-02-21 0:42 ` Andrew Morton
2013-02-21 3:19 ` Mandeep Singh Baines
2013-02-21 3:17 ` [PATCH v5] " Mandeep Singh Baines
2013-02-21 15:42 ` Rafael J. Wysocki
2013-02-21 16:24 ` Mandeep Singh Baines
2013-02-21 16:51 ` [PATCH v6] " Mandeep Singh Baines
2013-02-21 21:42 ` Andrew Morton
2013-02-21 21:57 ` Mandeep Singh Baines
2013-02-16 9:53 ` [PATCH 3/5] coredump: use a freezable_schedule for the coredump_finish wait Mandeep Singh Baines
2013-02-16 17:17 ` Oleg Nesterov
2013-02-16 9:53 ` [PATCH 4/5] freezer: clear fake signal on exit from __refrigerator Mandeep Singh Baines
2013-02-16 17:06 ` Oleg Nesterov
2013-02-16 17:12 ` Oleg Nesterov [this message]
2013-02-20 18:09 ` Mandeep Singh Baines
2013-02-23 19:41 ` Oleg Nesterov
2013-02-23 19:59 ` Oleg Nesterov
2013-02-16 9:53 ` [PATCH 5/5] coredump: ignore non-fatal signals when core dumping to a pipe Mandeep Singh Baines
2013-02-16 17:10 ` Oleg Nesterov
2013-02-16 19:46 ` Oleg Nesterov
2013-02-18 23:55 ` Mandeep Singh Baines
2013-02-19 14:18 ` Oleg Nesterov
2013-02-19 5:19 ` Mandeep Singh Baines
2013-02-19 14:27 ` Oleg Nesterov
2013-02-19 19:33 ` Mandeep Singh Baines
2013-02-19 19:45 ` Oleg Nesterov
2013-02-19 20:20 ` Mandeep Singh Baines
2013-02-20 23:30 ` Mandeep Singh Baines
2013-02-23 19:21 ` Oleg Nesterov
2013-02-16 17:05 ` [PATCH 1/5] vfork: don't freezer_count() for in-kernel users of CLONE_VFORK Oleg Nesterov
2013-02-20 0:07 ` Mandeep Singh Baines
2013-02-20 1:41 ` Mandeep Singh Baines
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