From 30cdc48cc8c9ad28e1b95460021d0c121b3ed4f4 Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Thu, 26 May 2011 16:07:34 -0700 Subject: rbd: Add bdrv_truncate implementation Reviewed-by: Christian Brunner Signed-off-by: Josh Durgin Signed-off-by: Kevin Wolf --- block/rbd.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'block') diff --git a/block/rbd.c b/block/rbd.c index f4da6ab13a..bdc448aa9f 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, -- cgit v1.2.3