From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 663D3C282DD for ; Tue, 7 Jan 2020 19:31:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F5D0206DB for ; Tue, 7 Jan 2020 19:31:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ayegAG88" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728815AbgAGTb3 (ORCPT ); Tue, 7 Jan 2020 14:31:29 -0500 Received: from mail-pg1-f194.google.com ([209.85.215.194]:32783 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728307AbgAGTb2 (ORCPT ); Tue, 7 Jan 2020 14:31:28 -0500 Received: by mail-pg1-f194.google.com with SMTP id 6so356397pgk.0; Tue, 07 Jan 2020 11:31:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=3ST/dj3po+BlNeYM5PMnB4Z+srpzBM2wonPJAfu44pg=; b=ayegAG88ic4ZMzTrQ5veoMKLjpAiwBmaJgBtFHY14G+/hkJWblccaas0os4TVCGKU0 JGskHw2/EF9g9oqgXWRZsQu4bwEUv/mzKh0vtW8N5JbfoEpH5mc0iHPYBSMiPx+kQ2Ii UuR8zZmrVymnRwa0240MOFfMrmIM7RKUC65YyifibGP5k6UoAFQFrFilwcrjFwwEBxtx G+FprGREsEVGy+JsYmWUJV4/xv8NtSNKW/yHeoQktpOY5C/saZF2HMvWjOEQKzWmNd40 +W24LHsjIQZ/DDnBiyXvFxhjBBjSMsYlbxPM5KLkvs/s/edJ/HDUCfqpw616E4/D+1Rq 114g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=3ST/dj3po+BlNeYM5PMnB4Z+srpzBM2wonPJAfu44pg=; b=eiM8jxS1sZV0LGCHkUP0NhJ7At+2L6Z3TgBUjjey4wYO4LdbkiDDmyk7hkhV9uER38 Qot/y4vJf1HiMSzh+J67JvD5UJ4R5Y629lm1vY+3FOhqGCM2YeuuAolIlzsTedwGMCNs DL5eY4d2/e2LiETM/4Y5X917ui4smL/kEqYGPTz5lzbcDVdfOYdjxkpK4LauICbHVlT0 zrbp1ZKOWiQ84EAv6DgmgpkCWJNNmfNDRlXCia+6dbcyNFoINePcu0kT9P82x/EhsPPE RzQVS1X2tQvRD1Dh1Vqw644Sgc9jaZ4wxAM7wcIf6jxiuaN+gOcGXojSge10yaktmivX 1nWw== X-Gm-Message-State: APjAAAUhRv5MsMqVHymJmE2+t39jQFYNTxSgsnC2t/4uENrGPc82i/hG 445rNiPe4j44pzgOMnJHNDk= X-Google-Smtp-Source: APXvYqwEJ4DGXraHQ+XTpgucybYYLANGWqLS0H5FRZ2LWC/vCHUIp2l5InPQcrZS3vIu3NDqkcJVHA== X-Received: by 2002:a62:1548:: with SMTP id 69mr837034pfv.239.1578425487834; Tue, 07 Jan 2020 11:31:27 -0800 (PST) Received: from madhuparna-HP-Notebook.nitk.ac.in ([2402:3a80:1ee3:fd53:8500:6ea8:4ef2:c9be]) by smtp.gmail.com with ESMTPSA id b4sm365817pfd.18.2020.01.07.11.31.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2020 11:31:26 -0800 (PST) From: madhuparnabhowmik04@gmail.com To: dennis.dalessandro@intel.com, mike.marciniszyn@intel.com, dledford@redhat.com, paulmck@kernel.org Cc: rcu@vger.kernel.org, joel@joelfernandes.org, frextrite@gmail.com, linux-kernel-mentees@lists.linuxfoundation.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Madhuparna Bhowmik Subject: [PATCH 3/3] infiniband: sw: rdmavt: mcast.c: Use built-in RCU list checking Date: Wed, 8 Jan 2020 01:01:19 +0530 Message-Id: <20200107193119.22915-1-madhuparnabhowmik04@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Madhuparna Bhowmik Use built-in RCU and lock-checking for list_for_each_entry_rcu() by passing the cond argument. Signed-off-by: Madhuparna Bhowmik --- drivers/infiniband/sw/rdmavt/mcast.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/sw/rdmavt/mcast.c b/drivers/infiniband/sw/rdmavt/mcast.c index dd11c6fcd060..983cf6d06dfc 100644 --- a/drivers/infiniband/sw/rdmavt/mcast.c +++ b/drivers/infiniband/sw/rdmavt/mcast.c @@ -224,7 +224,8 @@ static int rvt_mcast_add(struct rvt_dev_info *rdi, struct rvt_ibport *ibp, } /* Search the QP list to see if this is already there. */ - list_for_each_entry_rcu(p, &tmcast->qp_list, list) { + list_for_each_entry_rcu(p, &tmcast->qp_list, list, + lock_is_held(&(ibp->lock).dep_map)) { if (p->qp == mqp->qp) { ret = ESRCH; goto bail; -- 2.17.1