From: Benoît Canet <ben...@irqsave.net>
Signed-off-by: Benoit Canet <ben...@irqsave.net>
---
block/quorum.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/block/quorum.c b/block/quorum.c
index 1b84b07..e7b2090 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -685,6 +685,23 @@ static coroutine_fn int quorum_co_flush(BlockDriverState
*bs)
return result;
}
+static bool quorum_recurse_is_first_non_filter(BlockDriverState *bs,
+ BlockDriverState *candidate)
+{
+ BDRVQuorumState *s = bs->opaque;
+ int i;
+
+ for (i = 0; i < s->total; i++) {
+ bool perm = bdrv_recurse_is_first_non_filter(s->bs[i],
+ candidate);
+ if (perm) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
static BlockDriver bdrv_quorum = {
.format_name = "quorum",
.protocol_name = "quorum",
@@ -699,6 +716,8 @@ static BlockDriver bdrv_quorum = {
.bdrv_aio_writev = quorum_aio_writev,
.bdrv_invalidate_cache = quorum_invalidate_cache,
.bdrv_co_get_block_status = quorum_co_get_block_status,
+
+ .bdrv_recurse_is_first_non_filter = quorum_recurse_is_first_non_filter,
};
static void bdrv_quorum_init(void)
--
1.8.3.2
