From patchwork Tue Jun 22 13:39:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Haakon Bugge X-Patchwork-Id: 12337443 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BE06BC49EA2 for ; Tue, 22 Jun 2021 13:40:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0E5161076 for ; Tue, 22 Jun 2021 13:40:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231246AbhFVNm3 (ORCPT ); Tue, 22 Jun 2021 09:42:29 -0400 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]:55764 "EHLO mx0b-00069f02.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230047AbhFVNm2 (ORCPT ); Tue, 22 Jun 2021 09:42:28 -0400 Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 15MDaIEQ023970; Tue, 22 Jun 2021 13:40:08 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : mime-version : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=KDGEpthoHDX788UDIn/5SPyIhKjCNTo2w0xWotbGx8M=; b=ZlCp8HGLC3VO0+xNJTlBAiAjHMJ/BqCa/7VkpRT0Mn/lW7nj1xQam6A7WJz+VrW7tfcT 82GzBEuiGjxDqK+L3GNDjPilmABZ4/pyWMGMtLe0UxLYJXiidOJna9e+EuzYlg1TyPKn oVBscdYJMlVM0dnKJ9IddUaDkuPLcUV6QyBzf2HSpQU7RKC08KV4rEkgHsEEVmCCi0iN nZq3iySt5fBNHo2Yj0MeM8FDwhFeNridpf9h5ehZhGI2J5dslcqxbgZPonuotWzzwkL0 epuudvtAq2U4nqPIzaIpMGVdn/e6KjmudXLDXfsPQzjqPJPrumKNqBhdNnTcaJnGEnRp WQ== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by mx0b-00069f02.pphosted.com with ESMTP id 39b98v96ex-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 22 Jun 2021 13:40:08 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 15MDZsnG028668; Tue, 22 Jun 2021 13:40:07 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 399tbsqpj6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 22 Jun 2021 13:40:07 +0000 Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 15MDe6sU032386; Tue, 22 Jun 2021 13:40:06 GMT Received: from lab02.no.oracle.com (/10.172.144.56) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 22 Jun 2021 06:40:05 -0700 From: =?utf-8?q?H=C3=A5kon_Bugge?= To: Doug Ledford , Jason Gunthorpe , Leon Romanovsky Cc: linux-rdma@vger.kernel.org, Mark Zhang Subject: [PATCH for-next v2 0/2] Fix RMW to bit-fields and remove one superfluous ib_modify_qp Date: Tue, 22 Jun 2021 15:39:55 +0200 Message-Id: <1624369197-24578-1-git-send-email-haakon.bugge@oracle.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10022 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106220085 X-Proofpoint-ORIG-GUID: RH069yznKZKRTKYLcogq9w85iMCSR34m X-Proofpoint-GUID: RH069yznKZKRTKYLcogq9w85iMCSR34m Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This series removes one superfluous ib_modify_qp() when a connected QP is created through rdma_create_qp(). This commit removes a call to rdma_init_qp_attr() for connected QPs without holding the qp_mutex. The second commit tightens the access to bit-fields and synchronizes the access to them by means of mutex exclusion. v1 -> v2: * Added mutex protection in cma_resolve_iboe_route() for timeout/timeout_set in commit ("RDMA/cma: Protect RMW with qp_mutex") Håkon Bugge (2): RDMA/cma: Remove unnecessary INIT->INIT transition RDMA/cma: Protect RMW with qp_mutex drivers/infiniband/core/cma.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) --- 1.8.3.1