From: Benoît Canet <ben...@irqsave.net>
Signed-off-by: Benoit Canet <ben...@irqsave.net>
---
block/quorum.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/block/quorum.c b/block/quorum.c
index 1695f04..0242378 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -15,6 +15,16 @@
#include "block/block_int.h"
+/* the following structure holds the state of one quorum instance */
+typedef struct {
+ BlockDriverState **bs; /* children BlockDriverStates */
+ int total; /* children count */
+ int threshold; /* if less than threshold children reads gave the
+ * same result a quorum error occurs.
+ */
+ bool is_blkverify; /* true if the driver is in blkverify mode */
+} BDRVQuorumState;
+
typedef struct QuorumAIOCB QuorumAIOCB;
/* Quorum will create one instance of the following structure per operation it
@@ -37,6 +47,7 @@ typedef struct QuorumSingleAIOCB {
*/
struct QuorumAIOCB {
BlockDriverAIOCB common;
+ BDRVQuorumState *bqs;
/* Request metadata */
uint64_t sector_num;
@@ -52,3 +63,17 @@ struct QuorumAIOCB {
bool is_read;
int vote_ret;
};
+
+static BlockDriver bdrv_quorum = {
+ .format_name = "quorum",
+ .protocol_name = "quorum",
+
+ .instance_size = sizeof(BDRVQuorumState),
+};
+
+static void bdrv_quorum_init(void)
+{
+ bdrv_register(&bdrv_quorum);
+}
+
+block_init(bdrv_quorum_init);
--
1.8.3.2
