From patchwork Wed Jun 8 13:48:27 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 99439 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 44A6FB6F69 for ; Thu, 9 Jun 2011 00:22:00 +1000 (EST) Received: from localhost ([::1]:36562 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QUJds-0005sS-IB for incoming@patchwork.ozlabs.org; Wed, 08 Jun 2011 10:21:56 -0400 Received: from eggs.gnu.org ([140.186.70.92]:36781) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QUJ52-0005eE-Um for qemu-devel@nongnu.org; Wed, 08 Jun 2011 09:46:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QUJ4z-00005l-Dg for qemu-devel@nongnu.org; Wed, 08 Jun 2011 09:45:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:15553) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QUJ4y-00005H-LW for qemu-devel@nongnu.org; Wed, 08 Jun 2011 09:45:52 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p58Djom4019080 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 8 Jun 2011 09:45:51 -0400 Received: from dhcp-5-188.str.redhat.com (dhcp-5-175.str.redhat.com [10.32.5.175]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id p58DjcfK007654; Wed, 8 Jun 2011 09:45:50 -0400 From: Kevin Wolf To: anthony@codemonkey.ws Date: Wed, 8 Jun 2011 15:48:27 +0200 Message-Id: <1307540910-12398-10-git-send-email-kwolf@redhat.com> In-Reply-To: <1307540910-12398-1-git-send-email-kwolf@redhat.com> References: <1307540910-12398-1-git-send-email-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.132.183.28 Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [Qemu-devel] [PATCH 09/12] rbd: Add bdrv_truncate implementation 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 From: Josh Durgin Reviewed-by: Christian Brunner Signed-off-by: Josh Durgin Signed-off-by: Kevin Wolf --- block/rbd.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/block/rbd.c b/block/rbd.c index f4da6ab..bdc448a 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -688,6 +688,19 @@ static int64_t qemu_rbd_getlength(BlockDriverState *bs) return info.size; } +static int qemu_rbd_truncate(BlockDriverState *bs, int64_t offset) +{ + BDRVRBDState *s = bs->opaque; + int r; + + r = rbd_resize(s->image, offset); + if (r < 0) { + return r; + } + + return 0; +} + static int qemu_rbd_snap_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info) { @@ -784,6 +797,7 @@ static BlockDriver bdrv_rbd = { .bdrv_get_info = qemu_rbd_getinfo, .create_options = qemu_rbd_create_options, .bdrv_getlength = qemu_rbd_getlength, + .bdrv_truncate = qemu_rbd_truncate, .protocol_name = "rbd", .bdrv_aio_readv = qemu_rbd_aio_readv,