linux-kernel - Re: [PATCH] Remove might_sleep from wait_event

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Date:	Wed, 4 Feb 2015 08:30:25 +1100
From:	NeilBrown <neilb@...e.de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Mikulas Patocka <mpatocka@...hat.com>,
	Zdenek Kabelac <zkabelac@...hat.com>, tglx@...utronix.de,
	ilya.dryomov@...tank.com, umgwanakikbuti@...il.com,
	Oleg Nesterov <oleg@...hat.com>,
	Ingo Molnar <mingo@...nel.org>, dm-devel@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Remove might_sleep from wait_event_cmd

On Tue, 3 Feb 2015 12:06:30 +0100 Peter Zijlstra <peterz@...radead.org> wrote:

> On Tue, Feb 03, 2015 at 09:12:53AM +1100, NeilBrown wrote:
> > I support this patch.
> 
> It should hopefully already be en-route to tip.

Hopefully that means it will be in 3.19-final...

Thanks, I'll drop my __wait_event_cmd patch then.

NeilBrown

> 
> > However in case it doesn't get in, I've queued up a patch to change raid5.c
> > to use __wait_event_cmd instead...
> 
> So those primitives are useful in their own; their typical use would be
> when you already know @cond to be false and want to avoid the extra
> invocation.
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