diff options
| 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 /qemu-nbd.c | |
| parent | 26f54e9a3cfe62fca61baf83a06b269935d6b9a4 (diff) | |
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 'qemu-nbd.c')
| -rw-r--r-- | qemu-nbd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/qemu-nbd.c b/qemu-nbd.c index 634ba11260..f741973687 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -692,8 +692,8 @@ int main(int argc, char **argv) drv = NULL; } - blk = blk_new("hda", &error_abort); - bs = bdrv_new_root("hda", &error_abort); + blk = blk_new_with_bs("hda", &error_abort); + bs = blk_bs(blk); srcpath = argv[optind]; ret = bdrv_open(&bs, srcpath, NULL, NULL, flags, drv, &local_err); |