From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:54908) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QOwlI-000880-Kg for qemu-devel@nongnu.org; Tue, 24 May 2011 14:55:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QOwlH-0001wk-QU for qemu-devel@nongnu.org; Tue, 24 May 2011 14:55:24 -0400 Received: from mail.hq.newdream.net ([66.33.206.127]:37980) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QOwlH-0001wa-K8 for qemu-devel@nongnu.org; Tue, 24 May 2011 14:55:23 -0400 From: Josh Durgin Date: Tue, 24 May 2011 11:51:18 -0700 Message-Id: <1306263078-18089-5-git-send-email-josh.durgin@dreamhost.com> In-Reply-To: <1306263078-18089-1-git-send-email-josh.durgin@dreamhost.com> References: <1306263078-18089-1-git-send-email-josh.durgin@dreamhost.com> Subject: [Qemu-devel] [PATCH v4 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 c9f32e4..015ae8e 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -687,6 +687,20 @@ 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) { @@ -785,6 +799,7 @@ 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