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[Qemu-devel] [PULL 50/54] quorum: Implement recursive .bdrv_recurse_is_f
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 50/54] quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum. |
Date: |
Fri, 21 Feb 2014 23:12:47 +0100 |
From: BenoƮt Canet <address@hidden>
This is used to activate quorum snapshot.
Signed-off-by: Benoit Canet <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/quorum.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/block/quorum.c b/block/quorum.c
index 840afda..1b2b56f 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -655,6 +655,23 @@ 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->num_children; 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",
@@ -668,6 +685,8 @@ static BlockDriver bdrv_quorum = {
.bdrv_aio_readv = quorum_aio_readv,
.bdrv_aio_writev = quorum_aio_writev,
.bdrv_invalidate_cache = quorum_invalidate_cache,
+
+ .bdrv_recurse_is_first_non_filter = quorum_recurse_is_first_non_filter,
};
static void bdrv_quorum_init(void)
--
1.8.1.4
- [Qemu-devel] [PULL 42/54] quorum: Create BDRVQuorumState and BlkDriver and do init., (continued)
- [Qemu-devel] [PULL 42/54] quorum: Create BDRVQuorumState and BlkDriver and do init., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 43/54] quorum: Add quorum_aio_writev and its dependencies., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 40/54] check-qdict: Test termination of qdict_array_split(), Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 39/54] check-qdict: Adjust test for qdict_array_split(), Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 44/54] blkverify: Extract qemu_iovec_clone() and qemu_iovec_compare() from blkverify., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 45/54] quorum: Add quorum_aio_readv., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 46/54] quorum: Add quorum mechanism., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 48/54] quorum: Add quorum_invalidate_cache()., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 47/54] quorum: Add quorum_getlength()., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 49/54] quorum: Add quorum_co_flush()., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 50/54] quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum.,
Kevin Wolf <=
- [Qemu-devel] [PULL 51/54] quorum: Add quorum_open() and quorum_close()., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 52/54] quorum: Add unit test., Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 53/54] quorum: Simplify quorum_open(), Kevin Wolf, 2014/02/21
- [Qemu-devel] [PULL 54/54] iotests: Mixed quorum child device specifications, Kevin Wolf, 2014/02/21
- Re: [Qemu-devel] [PULL 00/54] Block patches, Peter Maydell, 2014/02/25