From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40296) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cqAJZ-0002RC-0r for qemu-devel@nongnu.org; Mon, 20 Mar 2017 23:18:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cqAJY-0000z3-5S for qemu-devel@nongnu.org; Mon, 20 Mar 2017 23:18:29 -0400 From: Fam Zheng Date: Tue, 21 Mar 2017 11:16:26 +0800 Message-Id: <20170321031635.22123-8-famz@redhat.com> In-Reply-To: <20170321031635.22123-1-famz@redhat.com> References: <20170321031635.22123-1-famz@redhat.com> Subject: [Qemu-devel] [PATCH RFC 07/16] mirror: Request aio context change permission on target List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Stefan Hajnoczi , Kevin Wolf , Max Reitz , qemu-block@nongnu.org What's done in the source's context change notifier is moving the target's context to follow the new one, so we request this permission here. Signed-off-by: Fam Zheng --- block/mirror.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/mirror.c b/block/mirror.c index ca4baa5..7101b11 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1185,6 +1185,7 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs, target_is_backing = bdrv_chain_contains(bs, target); target_graph_mod = (backing_mode != MIRROR_LEAVE_BACKING_CHAIN); s->target = blk_new(BLK_PERM_WRITE | BLK_PERM_RESIZE | + BLK_PERM_AIO_CONTEXT_CHANGE | (target_graph_mod ? BLK_PERM_GRAPH_MOD : 0), BLK_PERM_WRITE_UNCHANGED | (target_is_backing ? BLK_PERM_CONSISTENT_READ | -- 2.9.3