diff options
| author | Max Reitz <mreitz@redhat.com> | 2015-10-26 21:39:05 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-11-11 16:22:46 +0100 |
| commit | 1c95f7e1aff8417ff6e6cc23bc2d04fbcf79d37e (patch) | |
| tree | b3d39c2fdb23e362525c5d81421996a971c982ad /block | |
| parent | 9f4ed6fbd264a7c097590d830dcfd93996a80acb (diff) | |
block: Add blk_remove_bs()
This function removes the BlockDriverState associated with the given
BlockBackend from that BB and sets the BDS pointer in the BB to NULL.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/block-backend.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 19fdaaec1a..878c448855 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -334,6 +334,18 @@ void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk) } /* + * Disassociates the currently associated BlockDriverState from @blk. + */ +void blk_remove_bs(BlockBackend *blk) +{ + blk_update_root_state(blk); + + blk->bs->blk = NULL; + bdrv_unref(blk->bs); + blk->bs = NULL; +} + +/* * Associates a new BlockDriverState with @blk. */ void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs) |