From mboxrd@z Thu Jan  1 00:00:00 1970
Return-path: <kexec-bounces+dwmw2=infradead.org@lists.infradead.org>
Received: from cantor2.suse.de ([195.135.220.15] helo=mx2.suse.de)
 by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux))
 id 1T9eMF-00009G-Fz
 for kexec@lists.infradead.org; Thu, 06 Sep 2012 15:51:09 +0000
From: Petr Tesarik <ptesarik@suse.cz>
Subject: Re: [PATCH] makedumpfile: keep dumpfile pages in a cache
Date: Thu, 6 Sep 2012 17:50:52 +0200
References: <201208281949.50286.ptesarik@suse.cz>
 <20120903124233.61eafa52ffaed6a38a23710d@mxc.nes.nec.co.jp>
 <201209030904.03661.ptesarik@suse.cz>
In-Reply-To: <201209030904.03661.ptesarik@suse.cz>
MIME-Version: 1.0
Message-Id: <201209061750.52702.ptesarik@suse.cz>
List-Id: <kexec.lists.infradead.org>
List-Unsubscribe: <http://lists.infradead.org/mailman/options/kexec>,
 <mailto:kexec-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/kexec/>
List-Post: <mailto:kexec@lists.infradead.org>
List-Help: <mailto:kexec-request@lists.infradead.org?subject=help>
List-Subscribe: <http://lists.infradead.org/mailman/listinfo/kexec>,
 <mailto:kexec-request@lists.infradead.org?subject=subscribe>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Sender: kexec-bounces@lists.infradead.org
Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org
To: kexec@lists.infradead.org
Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>
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