From 7e7d56d9e05b340290669442cfa05f5869204572 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 7 Oct 2014 13:59:05 +0200 Subject: 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 Reviewed-by: Max Reitz Signed-off-by: Kevin Wolf --- include/sysemu/block-backend.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/sysemu/block-backend.h') diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 198062a00e..b97a794e45 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -17,10 +17,15 @@ #include "qapi/error.h" BlockBackend *blk_new(const char *name, Error **errp); +BlockBackend *blk_new_with_bs(const char *name, Error **errp); void blk_ref(BlockBackend *blk); void blk_unref(BlockBackend *blk); const char *blk_name(BlockBackend *blk); BlockBackend *blk_by_name(const char *name); BlockBackend *blk_next(BlockBackend *blk); +BlockDriverState *blk_bs(BlockBackend *blk); + +void blk_hide_on_behalf_of_do_drive_del(BlockBackend *blk); + #endif -- cgit v1.2.3