[Qemu-devel] [RFC V2 05/10] quorum: Add quorum_getlength().

[Benoît Canet]

Signed-off-by: Benoit Canet <address@hidden>
---
 block/quorum.c |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/block/quorum.c b/block/quorum.c
index 9da0432..5cd7083 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -118,12 +118,29 @@ static void quorum_close(BlockDriverState *bs)
     }
 }
 
+static int64_t quorum_getlength(BlockDriverState *bs)
+{
+    BDRVQuorumState *s = bs->opaque;
+    int i;
+    int64_t ret;
+
+    /* return the length of the first available quorum file */
+    for (i = 0, ret = bdrv_getlength(s->bs[i]);
+         ret == -ENOMEDIUM && i <= 2;
+         i++, ret = bdrv_getlength(s->bs[i])) {
+    }
+
+    return ret;
+}
+
 static BlockDriver bdrv_quorum = {
     .format_name        = "quorum",
     .protocol_name      = "quorum",
 
     .instance_size      = sizeof(BDRVQuorumState),
 
+    .bdrv_getlength     = quorum_getlength,
+
     .bdrv_file_open     = quorum_open,
     .bdrv_close         = quorum_close,
 };
-- 
1.7.9.5