Commit e3625d3d authored by Stefan Hajnoczi's avatar Stefan Hajnoczi
Browse files

quorum: implement .bdrv_detach/attach_aio_context() 



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: default avatarBenoît Canet <benoit.canet@irqsave.net>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent a8c868c3

block/quorum.c

+36 −12
Original line number Diff line number Diff line
@@ -848,6 +848,27 @@ 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",
@@ -865,6 +886,9 @@ static BlockDriver bdrv_quorum = { 
    .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,

};