From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Lalancette Subject: Re: [PATCH 3/10] Add bdrv_flush_all() Date: Wed, 10 Sep 2008 15:26:29 +0200 Message-ID: <48C7CB05.8070107@redhat.com> References: <1220989802-13706-1-git-send-email-aliguori@us.ibm.com> <1220989802-13706-4-git-send-email-aliguori@us.ibm.com> Reply-To: qemu-devel@nongnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Chris Wright , Uri Lublin , Anthony Liguori , kvm@vger.kernel.org To: qemu-devel@nongnu.org Return-path: In-Reply-To: <1220989802-13706-4-git-send-email-aliguori@us.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org List-Id: kvm.vger.kernel.org Anthony Liguori wrote: > This patch adds a bdrv_flush_all() function. It's necessary to ensure that all > IO operations have been flushed to disk before completely a live migration. > > N.B. we don't actually use this now. We really should flush the block drivers > using an live savevm callback to avoid unnecessary guest down time. Simple enough, and follows the pattern in the KVM migration. Chris Lalancette