Commit 98a7a38f authored by Benoît Canet's avatar Benoît Canet Committed by Kevin Wolf
Browse files

quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum. 



This is used to activate quorum snapshot.

Signed-off-by: default avatarBenoit Canet <benoit@irqsave.net>
Reviewed-by: default avatarMax Reitz <mreitz@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 1c508d17

block/quorum.c

+19 −0
Original line number Diff line number Diff line
@@ -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)