linux-kernel - Re: [PATCH 19/19] mm: filemap: Avoid unnecessary barries and waitqueue lookups in unlock

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Message-ID: <20140513182432.GH2485@laptop.programming.kicks-ass.net>
Date:	Tue, 13 May 2014 20:24:32 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	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>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Howells <dhowells@...hat.com>
Subject: Re: [PATCH 19/19] mm: filemap: Avoid unnecessary barries and
 waitqueue lookups in unlock_page fastpath

On Tue, May 13, 2014 at 08:18:52PM +0200, Oleg Nesterov wrote:
> 
> In short: I am totally confused and most probably misunderstood you ;)

Yeah, my bad, I got myself totally confused and it seems to spread fast.
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