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| author | Markus Armbruster <armbru@redhat.com> | 2014-10-07 13:59:05 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-10-20 13:41:26 +0200 |
| commit | 7e7d56d9e05b340290669442cfa05f5869204572 (patch) | |
| tree | 5ac3934eadc67544a188e1f368357bfe16c6b81c /include/block | |
| parent | 26f54e9a3cfe62fca61baf83a06b269935d6b9a4 (diff) | |
| download | qemu-7e7d56d9e05b340290669442cfa05f5869204572.tar.gz | |
block: Connect BlockBackend to BlockDriverState
Convenience function blk_new_with_bs() creates a BlockBackend with its
BlockDriverState. Callers have to unref both. The commit after next
will relieve them of the need to unref the BlockDriverState.
Complication: due to the silly way drive_del works, we need a way to
hide a BlockBackend, just like bdrv_make_anon(). To emphasize its
"special" status, give the function a suitably off-putting name:
blk_hide_on_behalf_of_do_drive_del(). Unfortunately, hiding turns the
BlockBackend's name into the empty string. Can't avoid that without
breaking the blk->bs->device_name equals blk->name invariant.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block_int.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index 8d86a6c1eb..14e0b7c053 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -324,6 +324,8 @@ struct BlockDriverState { BlockDriver *drv; /* NULL means no media */ void *opaque; + BlockBackend *blk; /* owning backend, if any */ + void *dev; /* attached device model, if any */ /* TODO change to DeviceState when all users are qdevified */ const BlockDevOps *dev_ops; |