From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:54777) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QFnFg-0002w5-2k for qemu-devel@nongnu.org; Fri, 29 Apr 2011 08:56:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QFnFf-00081q-C7 for qemu-devel@nongnu.org; Fri, 29 Apr 2011 08:56:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:10753) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QFnFf-00081k-2u for qemu-devel@nongnu.org; Fri, 29 Apr 2011 08:56:55 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p3TCurL5029076 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 29 Apr 2011 08:56:54 -0400 Date: Fri, 29 Apr 2011 18:26:49 +0530 From: Amit Shah Message-ID: <20110429125649.GA19028@amit-x200.redhat.com> References: <1304076306-15867-1-git-send-email-alevy@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1304076306-15867-1-git-send-email-alevy@redhat.com> Subject: Re: [Qemu-devel] [PATCHv3] virtio-serial-bus: use bh for unthrottling List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alon Levy Cc: qemu-devel@nongnu.org On (Fri) 29 Apr 2011 [14:25:06], Alon Levy wrote: > Instead of calling flush_queued_data when unthrottling, schedule > a bh. That way we can return immediately to the caller, and the > flush uses the same call path as a have_data for callbackee. > > No migration change is required because bh are called from vm_stop. No sign-off? The initial tests look good, no fireworks yet. Amit