From patchwork Fri Sep 7 00:49:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: NeilBrown X-Patchwork-Id: 10591383 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BA9D1921 for ; Fri, 7 Sep 2018 00:55:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC1FF2AF87 for ; Fri, 7 Sep 2018 00:55:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A0C7B2B17D; Fri, 7 Sep 2018 00:55:28 +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=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from pdx1-mailman02.dreamhost.com (pdx1-mailman02.dreamhost.com [64.90.62.194]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 574FE2AF87 for ; Fri, 7 Sep 2018 00:55:28 +0000 (UTC) Received: from pdx1-mailman02.dreamhost.com (localhost [IPv6:::1]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 3658121F961; Thu, 6 Sep 2018 17:55:02 -0700 (PDT) X-Original-To: lustre-devel@lists.lustre.org Delivered-To: lustre-devel-lustre.org@pdx1-mailman02.dreamhost.com Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 23AF0201325 for ; Thu, 6 Sep 2018 17:55:00 -0700 (PDT) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 23D81AC90; Fri, 7 Sep 2018 00:54:59 +0000 (UTC) From: NeilBrown To: Oleg Drokin , Doug Oucharek , James Simmons , Andreas Dilger Date: Fri, 07 Sep 2018 10:49:32 +1000 Message-ID: <153628137230.8267.13002746471298616108.stgit@noble> In-Reply-To: <153628058697.8267.6056114844033479774.stgit@noble> References: <153628058697.8267.6056114844033479774.stgit@noble> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Subject: [lustre-devel] [PATCH 26/34] lnet: only valid lnd_type when net_id is unique. X-BeenThere: lustre-devel@lists.lustre.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "For discussing Lustre software development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lustre Development List Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" X-Virus-Scanned: ClamAV using ClamSMTP If it isn't unique, we won't add it, so no need to validate. This is part of 8cbb8cd3e771e7f7e0f99cafc19fad32770dc015 LU-7734 lnet: Multi-Rail local NI split Signed-off-by: NeilBrown Reviewed-by: Doug Oucharek --- drivers/staging/lustre/lnet/lnet/api-ni.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index ab4d093c04da..0dfd3004f735 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -1366,13 +1366,14 @@ lnet_startup_lndnet(struct lnet_net *net, struct lnet_lnd_tunables *tun) __u32 lnd_type; struct lnet_lnd *lnd; - lnd_type = LNET_NETTYP(net->net_id); - INIT_LIST_HEAD(&local_ni_list); - LASSERT(libcfs_isknown_lnd(lnd_type)); /* Make sure this new NI is unique. */ if (lnet_net_unique(net->net_id, &the_lnet.ln_nets)) { + lnd_type = LNET_NETTYP(net->net_id); + + LASSERT(libcfs_isknown_lnd(lnd_type)); + mutex_lock(&the_lnet.ln_lnd_mutex); lnd = lnet_find_lnd_by_type(lnd_type);