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[Qemu-block] [PATCH 1/3] block: implement bdrv_snapshot_goto for blkrepl


From: Pavel Dovgalyuk
Subject: [Qemu-block] [PATCH 1/3] block: implement bdrv_snapshot_goto for blkreplay
Date: Tue, 31 Jan 2017 14:57:34 +0300
User-agent: StGit/0.16

This patch enables making snapshots with blkreplay used in
block devices.

Signed-off-by: Pavel Dovgalyuk <address@hidden>
---
 block/blkreplay.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/block/blkreplay.c b/block/blkreplay.c
index a741654..8a03d62 100644
--- a/block/blkreplay.c
+++ b/block/blkreplay.c
@@ -130,6 +130,12 @@ 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);
+}
+
 static BlockDriver bdrv_blkreplay = {
     .format_name            = "blkreplay",
     .protocol_name          = "blkreplay",
@@ -145,6 +151,8 @@ 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)




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