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[Qemu-devel] [PATCH] block: Fix device snapshots broken by the block fil
From: |
Benoît Canet |
Subject: |
[Qemu-devel] [PATCH] block: Fix device snapshots broken by the block filter snapshots patchset. |
Date: |
Mon, 10 Feb 2014 21:25:35 +0100 |
Take into account the fact that a block filter like quorum will be in bs->file
while a regular block driver device is really on the top level.
Signed-off-by: Benoit Canet <address@hidden>
---
block.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/block.c b/block.c
index 07ac50a..6ace45c 100644
--- a/block.c
+++ b/block.c
@@ -5402,12 +5402,14 @@ bool bdrv_is_first_non_filter(BlockDriverState
*candidate)
QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
bool perm;
- if (!bs->file) {
- continue;
+ if (bs->file &&
+ bs->file->drv &&
+ bs->file->drv->authorizations[BS_IS_A_FILTER]) {
+ perm = bdrv_recurse_is_first_non_filter(bs->file, candidate);
+ } else {
+ perm = bdrv_recurse_is_first_non_filter(bs, candidate);
}
- perm = bdrv_recurse_is_first_non_filter(bs->file, candidate);
-
/* candidate is the first non filter */
if (perm) {
return true;
--
1.8.3.2
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