linux-kernel - Re: [PATCH 1/1] ptrace: task_clear_jobctl_trapping()->wake_up

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Message-Id: <20140521121912.28188135b8e450cbee62fa27@linux-foundation.org>
Date:	Wed, 21 May 2014 12:19:12 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Oleg Nesterov <oleg@...hat.com>,
	David Howells <dhowells@...hat.com>,
	Mel Gorman <mgorman@...e.de>,
	Johannes Weiner <hannes@...xchg.org>,
	Vlastimil Babka <vbabka@...e.cz>, Jan Kara <jack@...e.cz>,
	Michal Hocko <mhocko@...e.cz>, Hugh Dickins <hughd@...gle.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux-MM <linux-mm@...ck.org>,
	Linux-FSDevel <linux-fsdevel@...r.kernel.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 1/1] ptrace: task_clear_jobctl_trapping()->wake_up_bit()
 needs mb()

On Wed, 21 May 2014 11:29:32 +0200 Peter Zijlstra <peterz@...radead.org> wrote:

> On Fri, May 16, 2014 at 03:51:37PM +0200, Oleg Nesterov wrote:
> > __wake_up_bit() checks waitqueue_active() and thus the caller needs
> > mb() as wake_up_bit() documents, fix task_clear_jobctl_trapping().
> > 
> > Signed-off-by: Oleg Nesterov <oleg@...hat.com>
> 
> Seeing how you are one of the ptrace maintainers, how do you want this
> routed? Does Andrew pick this up, do I stuff it somewhere?

Thanks, I grabbed it.  ptrace has been pretty quiet lately.
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