From patchwork Fri Apr 21 07:40:36 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 9691991 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 868C26037F for ; Fri, 21 Apr 2017 07:42:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 77D2D28602 for ; Fri, 21 Apr 2017 07:42:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6C7252860D; Fri, 21 Apr 2017 07:42:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2354C28602 for ; Fri, 21 Apr 2017 07:42:21 +0000 (UTC) Received: from localhost ([::1]:57657 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d1TCu-0001A6-9U for patchwork-qemu-devel@patchwork.kernel.org; Fri, 21 Apr 2017 03:42:20 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40751) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d1TBe-000170-Kt for qemu-devel@nongnu.org; Fri, 21 Apr 2017 03:41:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d1TBb-0000gA-Cf for qemu-devel@nongnu.org; Fri, 21 Apr 2017 03:41:02 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:47907 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d1TBb-0000fs-0U for qemu-devel@nongnu.org; Fri, 21 Apr 2017 03:40:59 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v3L7cr4g128255 for ; Fri, 21 Apr 2017 03:40:58 -0400 Received: from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110]) by mx0b-001b2d01.pphosted.com with ESMTP id 29xwu7f086-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 21 Apr 2017 03:40:58 -0400 Received: from localhost by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 21 Apr 2017 08:40:53 +0100 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v3L7eqCh7078392; Fri, 21 Apr 2017 07:40:52 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2AC4842049; Fri, 21 Apr 2017 08:39:50 +0100 (BST) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E17624203F; Fri, 21 Apr 2017 08:39:49 +0100 (BST) Received: from gondolin.boeblingen.de.ibm.com (unknown [9.152.224.84]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Fri, 21 Apr 2017 08:39:49 +0100 (BST) From: Cornelia Huck To: peter.maydell@linaro.org Date: Fri, 21 Apr 2017 09:40:36 +0200 X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170421074038.774-1-cornelia.huck@de.ibm.com> References: <20170421074038.774-1-cornelia.huck@de.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17042107-0016-0000-0000-00000482F4DA X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17042107-0017-0000-0000-00002755584B Message-Id: <20170421074038.774-10-cornelia.huck@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-04-21_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1704210143 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PULL 09/11] s390x/flic: cache flic in s390_get_flic X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Cornelia Huck , borntraeger@de.ibm.com, agraf@suse.de, Fei Li , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Fei Li s390_get_flic() is called many times to obtain the flic. This wastes a lot of time as it calls object_resolve_path() every time. Let's cache S390FLICState by defining it as static. Signed-off-by: Fei Li Signed-off-by: Cornelia Huck --- hw/intc/s390_flic.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index bef4caf980..711c11454f 100644 --- a/hw/intc/s390_flic.c +++ b/hw/intc/s390_flic.c @@ -21,11 +21,14 @@ S390FLICState *s390_get_flic(void) { - S390FLICState *fs; + static S390FLICState *fs; - fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); if (!fs) { - fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, NULL)); + fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); + if (!fs) { + fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, + NULL)); + } } return fs; }