From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56217) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V7hyZ-0002kg-1K for qemu-devel@nongnu.org; Fri, 09 Aug 2013 04:23:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V7hyQ-0000rJ-Nw for qemu-devel@nongnu.org; Fri, 09 Aug 2013 04:23:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49664) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V7hyQ-0000rB-GX for qemu-devel@nongnu.org; Fri, 09 Aug 2013 04:23:02 -0400 From: Stefan Hajnoczi Date: Fri, 9 Aug 2013 10:22:32 +0200 Message-Id: <1376036567-16008-4-git-send-email-stefanha@redhat.com> In-Reply-To: <1376036567-16008-1-git-send-email-stefanha@redhat.com> References: <1376036567-16008-1-git-send-email-stefanha@redhat.com> Subject: [Qemu-devel] [PATCH v7 03/18] dataplane/virtio-blk: check exit conditions before aio_poll() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , xiawenc@linux.vnet.ibm.com, Stefan Hajnoczi Check exit conditions before entering blocking aio_poll(). This is mainly for consistency since it's unlikely that we are stopping in the first event loop iteration. Signed-off-by: Stefan Hajnoczi --- hw/block/dataplane/virtio-blk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c index 411becc..5bd5eed 100644 --- a/hw/block/dataplane/virtio-blk.c +++ b/hw/block/dataplane/virtio-blk.c @@ -376,9 +376,9 @@ static void *data_plane_thread(void *opaque) { VirtIOBlockDataPlane *s = opaque; - do { + while (!s->stopping || s->num_reqs > 0) { aio_poll(s->ctx, true); - } while (!s->stopping || s->num_reqs > 0); + } return NULL; } -- 1.8.1.4