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[Qemu-devel] [PATCH 4/4] blockdev: check for BLOCK_OP_TYPE_EXTERNAL_SNAP
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 4/4] blockdev: check for BLOCK_OP_TYPE_EXTERNAL_SNAPSHOT |
Date: |
Fri, 21 Nov 2014 10:49:00 +0000 |
The BLOCK_OP_TYPE_EXTERNAL_SNAPSHOT op blocker exists but was never
used! Let's fix that so external snapshot can be blocked.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
blockdev.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/blockdev.c b/blockdev.c
index 90cb33d..d63bb7f 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1236,6 +1236,10 @@ static void
internal_snapshot_prepare(BlkTransactionState *common,
return;
}
+ if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_INTERNAL_SNAPSHOT, errp)) {
+ return;
+ }
+
if (bdrv_is_read_only(bs)) {
error_set(errp, QERR_DEVICE_IS_READ_ONLY, device);
return;
--
2.1.0