From: Pavel Dovgalyuk <pavel.dovga...@ispras.ru>
This patch enables making snapshots with blkreplay used in
block devices.
This function is required to make bdrv_snapshot_goto without
calling .bdrv_open which is not implemented.
Signed-off-by: Pavel Dovgalyuk <pavel.dovga...@ispras.ru>
---
block/blkreplay.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/block/blkreplay.c b/block/blkreplay.c
index 61e44a1..4c58bd2 100755
--- a/block/blkreplay.c
+++ b/block/blkreplay.c
@@ -127,6 +127,12 @@ static int coroutine_fn
blkreplay_co_flush(BlockDriverState *bs)
return ret;
}
+static int blkreplay_snapshot_goto(BlockDriverState *bs,
+ const char *snapshot_id)
+{
+ return bdrv_snapshot_goto(bs->file->bs, snapshot_id, NULL);
+}
+
static BlockDriver bdrv_blkreplay = {
.format_name = "blkreplay",
.protocol_name = "blkreplay",
@@ -143,6 +149,8 @@ static BlockDriver bdrv_blkreplay = {
.bdrv_co_pwrite_zeroes = blkreplay_co_pwrite_zeroes,
.bdrv_co_pdiscard = blkreplay_co_pdiscard,
.bdrv_co_flush = blkreplay_co_flush,
+
+ .bdrv_snapshot_goto = blkreplay_snapshot_goto,
};
static void bdrv_blkreplay_init(void)
