From patchwork Fri Mar 23 07:36:51 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benoit Canet X-Patchwork-Id: 148394 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 80F31B6EE7 for ; Fri, 23 Mar 2012 19:11:02 +1100 (EST) Received: from localhost ([::1]:53385 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SAz4I-0004xD-OE for incoming@patchwork.ozlabs.org; Fri, 23 Mar 2012 03:37:50 -0400 Received: from eggs.gnu.org ([208.118.235.92]:35342) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SAz3c-0003Cs-V8 for qemu-devel@nongnu.org; Fri, 23 Mar 2012 03:37:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SAz3a-0004aJ-9V for qemu-devel@nongnu.org; Fri, 23 Mar 2012 03:37:08 -0400 Received: from mail-wi0-f181.google.com ([209.85.212.181]:43163) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SAz3a-0004Z5-0N for qemu-devel@nongnu.org; Fri, 23 Mar 2012 03:37:06 -0400 Received: by wibhr17 with SMTP id hr17so1572473wib.10 for ; Fri, 23 Mar 2012 00:37:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=JSVj8+r3X11jalfVHfOIxljCTUfuZDG8l1/0fdksrWY=; b=Sq0FUsSru74/rSbLNVQc2xRsvSD17/JqLczKFe9YD/gl9TxZfDdxVlUYrreVhkBQr9 ivIt0Uub4mSJ0SbjUYqsPQDckIYLDqXXgA00VpnXTuOzyKAM2Ri/WOzl/68gCKXb4oVK NwecFdJHW89NZzZynMgn/FQGgnuXTtVTe2Cezag8bTthLp7uRlaEnm61+LyDgs5bIYNn v3RRNumSnEnSNogE9VRpbXUDAfOwQNEf9nG7oIDnyT+HVMKhp+0GYMHuoVaPN3uZhY4H vwrMUwzQHG8xoPsYC8A18b5aukWUQMC+7cZx/7uYw7jJ1AcrqfnnXCtquDE9xrVwg16h ovFA== Received: by 10.180.98.8 with SMTP id ee8mr4073082wib.14.1332488223763; Fri, 23 Mar 2012 00:37:03 -0700 (PDT) Received: from Laure.box.in.chocolate-blue.net ([109.190.18.76]) by mx.google.com with ESMTPS id j3sm19660297wiw.1.2012.03.23.00.37.02 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 23 Mar 2012 00:37:03 -0700 (PDT) From: =?UTF-8?q?Beno=C3=AEt=20Canet?= To: qemu-devel@nongnu.org Date: Fri, 23 Mar 2012 08:36:51 +0100 Message-Id: <1332488214-4685-5-git-send-email-benoit.canet@gmail.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1332488214-4685-1-git-send-email-benoit.canet@gmail.com> References: <1332488214-4685-1-git-send-email-benoit.canet@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.85.212.181 Cc: kwolf@redhat.com, pbonzini@redhat.com, =?UTF-8?q?Beno=C3=AEt=20Canet?= , stefanha@linux.vnet.ibm.com Subject: [Qemu-devel] [PATCH V3 4/7] qed: add bdrv_invalidate_cache to be called after incoming live migration X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org The QED image is reopened to flush metadata and check consistency. Signed-off-by: Benoit Canet --- block/qed.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/block/qed.c b/block/qed.c index a041d31..e32f598 100644 --- a/block/qed.c +++ b/block/qed.c @@ -1516,6 +1516,15 @@ static int bdrv_qed_change_backing_file(BlockDriverState *bs, return ret; } +static void bdrv_qed_invalidate_cache(BlockDriverState *bs) +{ + BDRVQEDState *s = bs->opaque; + + bdrv_qed_close(bs); + memset(s, 0, sizeof(BDRVQEDState)); + bdrv_qed_open(bs, bs->open_flags); +} + static int bdrv_qed_check(BlockDriverState *bs, BdrvCheckResult *result) { BDRVQEDState *s = bs->opaque; @@ -1568,6 +1577,7 @@ static BlockDriver bdrv_qed = { .bdrv_getlength = bdrv_qed_getlength, .bdrv_get_info = bdrv_qed_get_info, .bdrv_change_backing_file = bdrv_qed_change_backing_file, + .bdrv_invalidate_cache = bdrv_qed_invalidate_cache, .bdrv_check = bdrv_qed_check, };