From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41302) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b3PmW-0005BF-TH for qemu-devel@nongnu.org; Thu, 19 May 2016 11:22:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b3PmR-0008VH-GU for qemu-devel@nongnu.org; Thu, 19 May 2016 11:22:35 -0400 From: Kevin Wolf Date: Thu, 19 May 2016 17:21:46 +0200 Message-Id: <1463671329-22655-9-git-send-email-kwolf@redhat.com> In-Reply-To: <1463671329-22655-1-git-send-email-kwolf@redhat.com> References: <1463671329-22655-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PULL 08/31] block: Introduce BdrvChild.opaque List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org BlockBackends use it to get a back pointer from BdrvChild to BlockBackend in any BdrvChildRole callbacks. Signed-off-by: Kevin Wolf Reviewed-by: Alberto Garcia Acked-by: Stefan Hajnoczi --- block/block-backend.c | 2 ++ include/block/block_int.h | 1 + 2 files changed, 3 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index b9aaa60..52b7b92 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -133,6 +133,7 @@ BlockBackend *blk_new_with_bs(Error **errp) bs = bdrv_new_root(); blk->root = bdrv_root_attach_child(bs, "root", &child_root); + blk->root->opaque = blk; bs->blk = blk; return blk; } @@ -458,6 +459,7 @@ void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs) assert(!blk->root && !bs->blk); bdrv_ref(bs); blk->root = bdrv_root_attach_child(bs, "root", &child_root); + blk->root->opaque = blk; bs->blk = blk; notifier_list_notify(&blk->insert_bs_notifiers, blk); diff --git a/include/block/block_int.h b/include/block/block_int.h index 1218857..47dfafa 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -373,6 +373,7 @@ struct BdrvChild { BlockDriverState *bs; char *name; const BdrvChildRole *role; + void *opaque; QLIST_ENTRY(BdrvChild) next; QLIST_ENTRY(BdrvChild) next_parent; }; -- 1.8.3.1