From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:58415) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPKrQ-0004jo-6u for qemu-devel@nongnu.org; Wed, 25 May 2011 16:39:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QPKrP-0001NA-F5 for qemu-devel@nongnu.org; Wed, 25 May 2011 16:39:20 -0400 Received: from mail.hq.newdream.net ([66.33.206.127]:60313) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPKrP-0001Mz-Am for qemu-devel@nongnu.org; Wed, 25 May 2011 16:39:19 -0400 From: Josh Durgin Date: Wed, 25 May 2011 13:34:47 -0700 Message-Id: <1306355687-4647-5-git-send-email-josh.durgin@dreamhost.com> In-Reply-To: <1306355687-4647-1-git-send-email-josh.durgin@dreamhost.com> References: <1306355687-4647-1-git-send-email-josh.durgin@dreamhost.com> Subject: [Qemu-devel] [PATCH v5 4/4] rbd: Add bdrv_truncate implementation List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: kvm@vger.kernel.org, qemu-devel@nongnu.orgkvm@vger.kernel.orgqemu-devel@nongnu.org Cc: Kevin Wolf , ceph-devel@vger.kernel.org, Christian Brunner Signed-off-by: Josh Durgin --- block/rbd.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/block/rbd.c b/block/rbd.c index a44d160..b95b1eb 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -688,6 +688,20 @@ 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) { + error_report("failed to resize rbd image"); + return -EIO; + } + + return 0; +} + static int qemu_rbd_snap_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info) { @@ -784,6 +798,7 @@ 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, -- 1.7.2.3