From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@lst.de>
Subject: Re: dm: fix blk-mq request-based DM queue initialization
Date: Thu, 30 Apr 2015 10:23:16 +0200
Message-ID: <20150430082315.GA17074@lst.de>
References: <20150425092358.GA15550@infradead.org>
	<1430269153-647-1-git-send-email-snitzer@redhat.com>
	<20150429130037.GA3017@lst.de> <20150430014152.GA26430@redhat.com>
	<20150430072200.GB15819@lst.de>
Reply-To: device-mapper development <dm-devel@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dm-devel-bounces@redhat.com>
Content-Disposition: inline
In-Reply-To: <20150430072200.GB15819@lst.de>
List-Unsubscribe: <https://www.redhat.com/mailman/options/dm-devel>,
	<mailto:dm-devel-request@redhat.com?subject=unsubscribe>
List-Archive: <https://www.redhat.com/archives/dm-devel>
List-Post: <mailto:dm-devel@redhat.com>
List-Help: <mailto:dm-devel-request@redhat.com?subject=help>
List-Subscribe: <https://www.redhat.com/mailman/listinfo/dm-devel>,
	<mailto:dm-devel-request@redhat.com?subject=subscribe>
Sender: dm-devel-bounces@redhat.com
Errors-To: dm-devel-bounces@redhat.com
To: Mike Snitzer <snitzer@redhat.com>
Cc: dm-devel@redhat.com, Christoph Hellwig <hch@lst.de>
List-Id: dm-devel.ids
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=