From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42681) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdAUK-0007bn-31 for qemu-devel@nongnu.org; Wed, 01 Apr 2015 00:42:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YdAUG-0007Ik-3s for qemu-devel@nongnu.org; Wed, 01 Apr 2015 00:42:48 -0400 From: Bin Wu Date: Wed, 1 Apr 2015 12:42:21 +0800 Message-ID: <1427863341-7156-1-git-send-email-wu.wubin@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH] mirror: hold aio_context before bdrv_drain List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-block@nongnu.org, jcody@redhat.com, stefanha@redhat.com Cc: Bin Wu From: Bin Wu Signed-off-by: Bin Wu --- block/mirror.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/mirror.c b/block/mirror.c index 4056164..08372df 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -530,7 +530,9 @@ static void coroutine_fn mirror_run(void *opaque) * mirror_populate runs. */ trace_mirror_before_drain(s, cnt); + aio_context_acquire(bdrv_get_aio_context(bs)); bdrv_drain(bs); + aio_context_release(bdrv_get_aio_context(bs)); cnt = bdrv_get_dirty_count(bs, s->dirty_bitmap); } -- 1.7.12.4