From patchwork Tue Apr 3 08:38:08 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lai Jiangshan X-Patchwork-Id: 150358 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 1412AB6FE4 for ; Tue, 3 Apr 2012 19:48:29 +1000 (EST) Received: from localhost ([::1]:40407 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SEzRN-0005MH-4y for incoming@patchwork.ozlabs.org; Tue, 03 Apr 2012 04:50:13 -0400 Received: from eggs.gnu.org ([208.118.235.92]:37970) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SEzQi-0003uo-PN for qemu-devel@nongnu.org; Tue, 03 Apr 2012 04:49:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SEzQd-0006WR-E4 for qemu-devel@nongnu.org; Tue, 03 Apr 2012 04:49:32 -0400 Received: from [222.73.24.84] (port=8723 helo=song.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SEzQd-0006VE-2s for qemu-devel@nongnu.org; Tue, 03 Apr 2012 04:49:27 -0400 X-IronPort-AV: E=Sophos;i="4.75,362,1330876800"; d="scan'208";a="4676341" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 03 Apr 2012 16:49:02 +0800 Received: from mailserver.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id q338X6kk029009; Tue, 3 Apr 2012 16:33:27 +0800 Received: from localhost.localdomain ([10.167.225.146]) by mailserver.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2012040316325324-36911 ; Tue, 3 Apr 2012 16:32:53 +0800 From: Lai Jiangshan To: Kevin Wolf , Stefan Hajnoczi , Anthony Liguori Date: Tue, 3 Apr 2012 16:38:08 +0800 Message-Id: <1333442297-18932-1-git-send-email-laijs@cn.fujitsu.com> X-Mailer: git-send-email 1.7.4.4 X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/04/03 16:32:53, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/04/03 16:33:18, Serialize complete at 2012/04/03 16:33:18 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 222.73.24.84 Cc: qemu-devel@nongnu.org, Lai Jiangshan Subject: [Qemu-devel] [PATCH 01/10] coroutine: use qemu_coroutine_switch() directly X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org When qemu_coroutine_switch() in the qemu_coroutine_yield() returns, It must be someone calls qemu_coroutine_enter() for it, so the @to is active, the tests in coroutine_swap() are unneeded, so we use qemu_coroutine_switch() directly in qemu_coroutine_yield(). Signed-off-by: Lai Jiangshan --- qemu-coroutine.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/qemu-coroutine.c b/qemu-coroutine.c index 600be26..c01252e 100644 --- a/qemu-coroutine.c +++ b/qemu-coroutine.c @@ -71,5 +71,5 @@ void coroutine_fn qemu_coroutine_yield(void) } self->caller = NULL; - coroutine_swap(self, to); + qemu_coroutine_switch(self, to, COROUTINE_YIELD); }