diff mbox

[V10,11/13] quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum.

Message ID 1390927974-31325-12-git-send-email-benoit.canet@irqsave.net
State New
Headers show

Commit Message

Benoît Canet Jan. 28, 2014, 4:52 p.m. UTC 
From: Benoît Canet <benoit@irqsave.net>

Signed-off-by: Benoit Canet <benoit@irqsave.net>
---
 block/quorum.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Comments

Max Reitz Feb. 2, 2014, 10:31 p.m. UTC | #1 
On 28.01.2014 17:52, Benoît Canet wrote:
> From: Benoît Canet <benoit@irqsave.net>
>
> Signed-off-by: Benoit Canet <benoit@irqsave.net>
> ---
>   block/quorum.c | 19 +++++++++++++++++++
>   1 file changed, 19 insertions(+)

Reviewed-by: Max Reitz <mreitz@redhat.com>
diff mbox

Patch

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)