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Message-ID: <20090516131702.GA5606@cmpxchg.org>
Date: Sat, 16 May 2009 15:17:02 +0200
From: Johannes Weiner <hannes@...xchg.org>
To: Wu Fengguang <fengguang.wu@...el.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Minchan Kim <minchan.kim@...il.com>,
Peter Zijlstra <peterz@...radead.org>,
Christoph Lameter <cl@...ux-foundation.org>,
KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
"riel@...hat.com" <riel@...hat.com>,
"tytso@....edu" <tytso@....edu>,
"linux-mm@...ck.org" <linux-mm@...ck.org>,
"elladan@...imo.com" <elladan@...imo.com>,
"npiggin@...e.de" <npiggin@...e.de>
Subject: Re: [PATCH 1/3] vmscan: report vm_flags in page_referenced()
On Sat, May 16, 2009 at 05:00:06PM +0800, Wu Fengguang wrote:
> Collect vma->vm_flags of the VMAs that actually referenced the page.
>
> This is preparing for more informed reclaim heuristics,
> eg. to protect executable file pages more aggressively.
> For now only the VM_EXEC bit will be used by the caller.
>
> CC: Minchan Kim <minchan.kim@...il.com>
> CC: Johannes Weiner <hannes@...xchg.org>
> CC: Peter Zijlstra <peterz@...radead.org>
> Signed-off-by: Wu Fengguang <fengguang.wu@...el.com>
Reviewed-by: Johannes Weiner <hannes@...xchg.org>
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