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-rw-r--r--block/rbd.c14
1 files changed, 14 insertions, 0 deletions
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,