From patchwork Tue Dec 16 19:01:11 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Haynes X-Patchwork-Id: 5502811 Return-Path: X-Original-To: patchwork-linux-nfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 3F999BEEBA for ; Tue, 16 Dec 2014 19:02:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5CB5B209C4 for ; Tue, 16 Dec 2014 19:02:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6C093209C1 for ; Tue, 16 Dec 2014 19:02:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750885AbaLPTCP (ORCPT ); Tue, 16 Dec 2014 14:02:15 -0500 Received: from mail-pd0-f178.google.com ([209.85.192.178]:37528 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750890AbaLPTCO (ORCPT ); Tue, 16 Dec 2014 14:02:14 -0500 Received: by mail-pd0-f178.google.com with SMTP id r10so14345693pdi.23 for ; Tue, 16 Dec 2014 11:02:14 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=WRfDvAy7tD0gSHMoTodqsWv2YU4xargTXZGcKiI5Ccs=; b=MiST3sZhSCXJMxx1Bv6G+q6bWYmkYRuCxSbZLfs2rJQ8btbtoTVLniMrwuYaeKC8c9 cHc7lWbmEC8botbLUVMGRx1JZUO63wOoVLPZYRTqh4CSRscUW3O7QcEHgsaJ4V/85RP5 ukqGIDMFz559OREz2GbVe0OSDP0Sds1OgVU4R3pNETCAgfox7TegzThIGL08UhvYx6wz PpboXtiovQy9Hiz/DMaWPQjFWDyGirk02WPt5oXmUdDifDNjmKPg8WmOTjMdYUmfjmrx nMLZdNXqtznyu9zxXFTB5+qTz/e09kX12lvDiC/0yPkWtTv8HyJ0mCBwWMwjeU/QKn7Q fAPw== X-Gm-Message-State: ALoCoQk15EwPysYuUSUrAhO02KMc9To1SPY3ktO61yRP6hInSFS9piFeUB7CcBR9dqrCyW+aPKYS X-Received: by 10.66.182.130 with SMTP id ee2mr63370765pac.22.1418756534473; Tue, 16 Dec 2014 11:02:14 -0800 (PST) Received: from localhost.localdomain ([50.242.95.105]) by mx.google.com with ESMTPSA id q4sm1620669pdh.79.2014.12.16.11.02.13 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Dec 2014 11:02:14 -0800 (PST) From: Tom Haynes X-Google-Original-From: Tom Haynes To: Trond Myklebust Cc: Linux NFS Mailing List Subject: [PATCH 08/50] nfsv3: introduce nfs3_set_ds_client Date: Tue, 16 Dec 2014 11:01:11 -0800 Message-Id: <1418756513-95187-9-git-send-email-loghyr@primarydata.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1418756513-95187-1-git-send-email-loghyr@primarydata.com> References: <1418756513-95187-1-git-send-email-loghyr@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Peng Tao The flexfiles layout wants to create DS connection over NFSv3. Add nfs3_set_ds_client to allow that to happen. Signed-off-by: Peng Tao Signed-off-by: Tom Haynes --- fs/nfs/internal.h | 7 +++++++ fs/nfs/nfs3client.c | 34 ++++++++++++++++++++++++++++++++++ fs/nfs/nfs3super.c | 2 +- 3 files changed, 42 insertions(+), 1 deletion(-) diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 7d7c36f..bf9f79f 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -193,6 +193,10 @@ extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp, rpc_authflavor_t au_flavor); extern struct rpc_clnt *nfs4_find_or_create_ds_client(struct nfs_client *, struct inode *); +extern struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp, + const struct sockaddr *ds_addr, int ds_addrlen, + int ds_proto, unsigned int ds_timeo, + unsigned int ds_retrans, rpc_authflavor_t au_flavor); #ifdef CONFIG_PROC_FS extern int __init nfs_fs_proc_init(void); extern void nfs_fs_proc_exit(void); @@ -381,6 +385,9 @@ extern void __exit unregister_nfs_fs(void); extern void nfs_sb_active(struct super_block *sb); extern void nfs_sb_deactive(struct super_block *sb); +/* nfs3super.c */ +extern struct nfs_subversion nfs_v3; + /* namespace.c */ #define NFS_PATH_CANONICAL 1 extern char *nfs_path(char **p, struct dentry *dentry, diff --git a/fs/nfs/nfs3client.c b/fs/nfs/nfs3client.c index 8c1b437..52e2344 100644 --- a/fs/nfs/nfs3client.c +++ b/fs/nfs/nfs3client.c @@ -64,3 +64,37 @@ struct nfs_server *nfs3_clone_server(struct nfs_server *source, nfs_init_server_aclclient(server); return server; } + +/* + * Set up a pNFS Data Server client over NFSv3. + * + * Return any existing nfs_client that matches server address,port,version + * and minorversion. + * + * For a new nfs_client, use a soft mount (default), a low retrans and a + * low timeout interval so that if a connection is lost, we retry through + * the MDS. + */ +struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp, + const struct sockaddr *ds_addr, int ds_addrlen, + int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans, + rpc_authflavor_t au_flavor) +{ + struct nfs_client_initdata cl_init = { + .addr = ds_addr, + .addrlen = ds_addrlen, + .nfs_mod = &nfs_v3, + .proto = ds_proto, + .net = mds_clp->cl_net, + }; + struct rpc_timeout ds_timeout; + struct nfs_client *clp; + + /* Use the MDS nfs_client cl_ipaddr. */ + nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans); + clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr, + au_flavor); + + return clp; +} +EXPORT_SYMBOL_GPL(nfs3_set_ds_client); diff --git a/fs/nfs/nfs3super.c b/fs/nfs/nfs3super.c index 6af29c2..5c4394e 100644 --- a/fs/nfs/nfs3super.c +++ b/fs/nfs/nfs3super.c @@ -7,7 +7,7 @@ #include "nfs3_fs.h" #include "nfs.h" -static struct nfs_subversion nfs_v3 = { +struct nfs_subversion nfs_v3 = { .owner = THIS_MODULE, .nfs_fs = &nfs_fs_type, .rpc_vers = &nfs_version3,