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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 1B323C46475 for ; Thu, 25 Oct 2018 14:19:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D6ADC20870 for ; Thu, 25 Oct 2018 14:19:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="s01DbUZB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D6ADC20870 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730585AbeJYWwa (ORCPT ); Thu, 25 Oct 2018 18:52:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:34532 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729490AbeJYWwa (ORCPT ); Thu, 25 Oct 2018 18:52:30 -0400 Received: from sasha-vm.mshome.net (unknown [167.98.65.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 209B92086D; Thu, 25 Oct 2018 14:19:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1540477171; bh=q6VmlWSjVJmU9lQfV9JAj2GBLXxysmGqVludBepks0k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s01DbUZBd028fkjCLw+U0/SDKtF+wMvw8TPTnjPQXTImQ16fs0zqnwej0foVugfrb 00Pr/RMuZuXXv31rZM01B7lVghtH/p/JnXTKbRVb/8iKwJ2KQfbrMvXTC1VjMrD3L2 /S+NovyNu14a5PZAwDYgm/yAqXWQFtUlOdccONsE= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Trond Myklebust , Sasha Levin Subject: [PATCH AUTOSEL 3.18 24/98] NFSv4: Cache the NFSv4/v4.1 client owner_id in the struct nfs_client Date: Thu, 25 Oct 2018 10:17:39 -0400 Message-Id: <20181025141853.214051-24-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181025141853.214051-1-sashal@kernel.org> References: <20181025141853.214051-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Trond Myklebust [ Upstream commit ceb3a16c070c403f5f9ca46b46cf2bb79ea11750 ] Ensure that we cache the NFSv4/v4.1 client owner_id so that we can verify it when we're doing trunking detection. Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin --- fs/nfs/nfs4client.c | 1 + fs/nfs/nfs4proc.c | 19 +++++++++++++++---- include/linux/nfs_fs_sb.h | 3 +++ 3 files changed, 19 insertions(+), 4 deletions(-) diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 723c656ebd28..d748d403bab1 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -228,6 +228,7 @@ static void nfs4_shutdown_client(struct nfs_client *clp) kfree(clp->cl_serverowner); kfree(clp->cl_serverscope); kfree(clp->cl_implid); + kfree(clp->cl_owner_id); } void nfs4_free_client(struct nfs_client *clp) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 321044c183f5..db8456b4ecb8 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4913,11 +4913,14 @@ static void nfs4_init_boot_verifier(const struct nfs_client *clp, } static unsigned int -nfs4_init_nonuniform_client_string(const struct nfs_client *clp, +nfs4_init_nonuniform_client_string(struct nfs_client *clp, char *buf, size_t len) { unsigned int result; + if (clp->cl_owner_id != NULL) + return strlcpy(buf, clp->cl_owner_id, len); + rcu_read_lock(); result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s", clp->cl_ipaddr, @@ -4926,24 +4929,32 @@ nfs4_init_nonuniform_client_string(const struct nfs_client *clp, rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO)); rcu_read_unlock(); + clp->cl_owner_id = kstrdup(buf, GFP_KERNEL); return result; } static unsigned int -nfs4_init_uniform_client_string(const struct nfs_client *clp, +nfs4_init_uniform_client_string(struct nfs_client *clp, char *buf, size_t len) { const char *nodename = clp->cl_rpcclient->cl_nodename; + unsigned int result; + + if (clp->cl_owner_id != NULL) + return strlcpy(buf, clp->cl_owner_id, len); if (nfs4_client_id_uniquifier[0] != '\0') - return scnprintf(buf, len, "Linux NFSv%u.%u %s/%s", + result = scnprintf(buf, len, "Linux NFSv%u.%u %s/%s", clp->rpc_ops->version, clp->cl_minorversion, nfs4_client_id_uniquifier, nodename); - return scnprintf(buf, len, "Linux NFSv%u.%u %s", + else + result = scnprintf(buf, len, "Linux NFSv%u.%u %s", clp->rpc_ops->version, clp->cl_minorversion, nodename); + clp->cl_owner_id = kstrdup(buf, GFP_KERNEL); + return result; } /* diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index fd249ab2718f..4ac99c07406a 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -74,6 +74,9 @@ struct nfs_client { /* idmapper */ struct idmap * cl_idmap; + /* Client owner identifier */ + const char * cl_owner_id; + /* Our own IP address, as a null-terminated string. * This is used to generate the mv0 callback address. */ -- 2.17.1