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[Qemu-devel] [PATCH v3 13/25] quorum: implement .bdrv_detach/attach_aio_
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v3 13/25] quorum: implement .bdrv_detach/attach_aio_context() |
Date: |
Thu, 8 May 2014 16:34:46 +0200 |
Implement .bdrv_detach/attach_aio_context() interfaces to propagate
detach/attach to BDRVQuorumState->bs[] children. The block layer takes
care of ->file and ->backing_hd but doesn't know about our ->bs[]
BlockDriverStates, which is also part of the graph.
Reviewed-by: BenoƮt Canet <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
block/quorum.c | 48 ++++++++++++++++++++++++++++++++++++------------
1 file changed, 36 insertions(+), 12 deletions(-)
diff --git a/block/quorum.c b/block/quorum.c
index ecec3a5..426077a 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -848,25 +848,49 @@ static void quorum_close(BlockDriverState *bs)
g_free(s->bs);
}
+static void quorum_detach_aio_context(BlockDriverState *bs)
+{
+ BDRVQuorumState *s = bs->opaque;
+ int i;
+
+ for (i = 0; i < s->num_children; i++) {
+ bdrv_detach_aio_context(s->bs[i]);
+ }
+}
+
+static void quorum_attach_aio_context(BlockDriverState *bs,
+ AioContext *new_context)
+{
+ BDRVQuorumState *s = bs->opaque;
+ int i;
+
+ for (i = 0; i < s->num_children; i++) {
+ bdrv_attach_aio_context(s->bs[i], new_context);
+ }
+}
+
static BlockDriver bdrv_quorum = {
- .format_name = "quorum",
- .protocol_name = "quorum",
+ .format_name = "quorum",
+ .protocol_name = "quorum",
+
+ .instance_size = sizeof(BDRVQuorumState),
- .instance_size = sizeof(BDRVQuorumState),
+ .bdrv_file_open = quorum_open,
+ .bdrv_close = quorum_close,
- .bdrv_file_open = quorum_open,
- .bdrv_close = quorum_close,
+ .bdrv_co_flush_to_disk = quorum_co_flush,
- .bdrv_co_flush_to_disk = quorum_co_flush,
+ .bdrv_getlength = quorum_getlength,
- .bdrv_getlength = quorum_getlength,
+ .bdrv_aio_readv = quorum_aio_readv,
+ .bdrv_aio_writev = quorum_aio_writev,
+ .bdrv_invalidate_cache = quorum_invalidate_cache,
- .bdrv_aio_readv = quorum_aio_readv,
- .bdrv_aio_writev = quorum_aio_writev,
- .bdrv_invalidate_cache = quorum_invalidate_cache,
+ .bdrv_detach_aio_context = quorum_detach_aio_context,
+ .bdrv_attach_aio_context = quorum_attach_aio_context,
- .is_filter = true,
- .bdrv_recurse_is_first_non_filter = quorum_recurse_is_first_non_filter,
+ .is_filter = true,
+ .bdrv_recurse_is_first_non_filter = quorum_recurse_is_first_non_filter,
};
static void bdrv_quorum_init(void)
--
1.9.0
- Re: [Qemu-devel] [PATCH v3 18/25] rbd: use BlockDriverState's AioContext, (continued)
- [Qemu-devel] [PATCH v3 20/25] ssh: use BlockDriverState's AioContext, Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 21/25] vmdk: implement .bdrv_detach/attach_aio_context(), Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 22/25] dataplane: use the QEMU block layer for I/O, Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 23/25] dataplane: delete IOQueue since it is no longer used, Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 19/25] sheepdog: implement .bdrv_detach/attach_aio_context(), Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 24/25] dataplane: implement async flush, Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 25/25] raw-posix: drop raw_get_aio_fd() since it is no longer used, Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 06/25] blkverify: implement .bdrv_detach/attach_aio_context(), Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 13/25] quorum: implement .bdrv_detach/attach_aio_context(),
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH v3 10/25] nbd: implement .bdrv_detach/attach_aio_context(), Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 12/25] qed: use BlockDriverState's AioContext, Stefan Hajnoczi, 2014/05/08
- [Qemu-devel] [PATCH v3 11/25] nfs: implement .bdrv_detach/attach_aio_context(), Stefan Hajnoczi, 2014/05/08