Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx2.netapp.com ([216.240.18.37]:14668 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753303Ab2BJWCR (ORCPT ); Fri, 10 Feb 2012 17:02:17 -0500 From: bjschuma@netapp.com To: Trond.Myklebust@netapp.com Cc: linux-nfs@vger.kernel.org, Bryan Schumaker Subject: [RFC 08/21] NFS: Only initialize the ACL client in the v3 case Date: Fri, 10 Feb 2012 17:01:52 -0500 Message-Id: <1328911325-1566-8-git-send-email-bjschuma@netapp.com> In-Reply-To: <1328911325-1566-1-git-send-email-bjschuma@netapp.com> References: <1328911325-1566-1-git-send-email-bjschuma@netapp.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: From: Bryan Schumaker v2 and v4 don't use it, so the function can be limited to v3 only. Signed-off-by: Bryan Schumaker --- fs/nfs/Makefile | 2 +- fs/nfs/client.c | 35 +---------------------------- fs/nfs/nfs.h | 3 +- fs/nfs/nfs2super.c | 6 ++++- fs/nfs/nfs3client.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/nfs3super.c | 12 ++++++++- fs/nfs/nfs4super.c | 6 ++++- fs/nfs/super.c | 12 +-------- 8 files changed, 87 insertions(+), 50 deletions(-) create mode 100644 fs/nfs/nfs3client.c diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile index bc2ba86..6764e66 100644 --- a/fs/nfs/Makefile +++ b/fs/nfs/Makefile @@ -9,7 +9,7 @@ nfs-y := client.o dir.o file.o getroot.o inode.o super.o \ write.o namespace.o mount_clnt.o \ dns_resolve.o cache_lib.o nfs-$(CONFIG_ROOT_NFS) += nfsroot.o -nfs-$(CONFIG_NFS_V3) += nfs3super.o nfs3proc.o nfs3xdr.o +nfs-$(CONFIG_NFS_V3) += nfs3super.o nfs3client.o nfs3proc.o nfs3xdr.o nfs-$(CONFIG_NFS_V3_ACL) += nfs3acl.o nfs-$(CONFIG_NFS_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \ nfs4super.o delegation.o idmap.o \ diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 67a6187..ca3a408 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -794,36 +794,6 @@ static int nfs_start_lockd(struct nfs_server *server) } /* - * Initialise an NFSv3 ACL client connection - */ -#ifdef CONFIG_NFS_V3_ACL -static void nfs_init_server_aclclient(struct nfs_server *server) -{ - if (server->nfs_client->rpc_ops->version != 3) - goto out_noacl; - if (server->flags & NFS_MOUNT_NOACL) - goto out_noacl; - - server->client_acl = rpc_bind_new_program(server->client, &nfsacl_program, 3); - if (IS_ERR(server->client_acl)) - goto out_noacl; - - /* No errors! Assume that Sun nfsacls are supported */ - server->caps |= NFS_CAP_ACLS; - return; - -out_noacl: - server->caps &= ~NFS_CAP_ACLS; -} -#else -static inline void nfs_init_server_aclclient(struct nfs_server *server) -{ - server->flags &= ~NFS_MOUNT_NOACL; - server->caps &= ~NFS_CAP_ACLS; -} -#endif - -/* * Create a general RPC client */ static int nfs_init_server_rpcclient(struct nfs_server *server, @@ -970,8 +940,6 @@ static int nfs_init_server(struct nfs_server *server, server->mountd_protocol = data->mount_server.protocol; server->namelen = data->namlen; - /* Create a client RPC handle for the NFSv3 ACL management interface */ - nfs_init_server_aclclient(server); dprintk("<-- nfs_init_server() = 0 [new %p]\n", clp); return 0; @@ -1794,8 +1762,6 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source, source->client->cl_auth->au_flavor); if (error < 0) goto out_free_server; - if (!IS_ERR(source->client_acl)) - nfs_init_server_aclclient(server); /* probe the filesystem info for this server filesystem */ error = nfs_probe_fsinfo(server, fh, fattr_fsinfo); @@ -1826,6 +1792,7 @@ out_free_server: dprintk("<-- nfs_clone_server() = error %d\n", error); return ERR_PTR(error); } +EXPORT_SYMBOL_GPL(nfs_clone_server); #ifdef CONFIG_PROC_FS static struct proc_dir_entry *proc_fs_nfs; diff --git a/fs/nfs/nfs.h b/fs/nfs/nfs.h index a813d00..921e8c8 100644 --- a/fs/nfs/nfs.h +++ b/fs/nfs/nfs.h @@ -47,7 +47,8 @@ extern struct file_system_type nfs_fs_type; struct dentry *_nfs_fs_mount(struct file_system_type *, struct nfs_server *, int, const char *, struct nfs_fh *, struct nfs_parsed_mount_data *); -struct dentry *_nfs_xdev_mount(struct file_system_type *, int, const char *, void *, int); +struct dentry *_nfs_xdev_mount(struct file_system_type *, struct nfs_server *, + int, const char *, void *, int); #endif /* __LINUX_INTERNAL_NFS_H */ diff --git a/fs/nfs/nfs2super.c b/fs/nfs/nfs2super.c index d1074a9..ddcc4d1 100644 --- a/fs/nfs/nfs2super.c +++ b/fs/nfs/nfs2super.c @@ -6,6 +6,7 @@ #include #include #include +#include "internal.h" #include "nfs.h" static void nfs2_reference(void) @@ -32,7 +33,10 @@ static struct dentry *nfs2_fs_mount(struct file_system_type *fs_type, static struct dentry *nfs2_xdev_mount(int flags, const char *dev_name, struct nfs_clone_mount *data) { - return _nfs_xdev_mount(&nfs_fs_type, flags, dev_name, data, NFS_MOUNT_UNSHARED); + struct nfs_server *server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); + if (IS_ERR(server)) + return ERR_CAST(server); + return _nfs_xdev_mount(&nfs_fs_type, server, flags, dev_name, data, NFS_MOUNT_UNSHARED); } static struct nfs_subversion nfs_v2 = { diff --git a/fs/nfs/nfs3client.c b/fs/nfs/nfs3client.c new file mode 100644 index 0000000..f23fc46 --- /dev/null +++ b/fs/nfs/nfs3client.c @@ -0,0 +1,61 @@ +/* Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include +#include +#include +#include "internal.h" +#include "nfs.h" + +/* + * Initialise an NFSv3 ACL client connection + */ +#ifdef CONFIG_NFS_V3_ACL +static void nfs_init_server_aclclient(struct nfs_server *server) +{ + if (server->flags & NFS_MOUNT_NOACL) + goto out_noacl; + + server->client_acl = rpc_bind_new_program(server->client, &nfsacl_program, 3); + if (IS_ERR(server->client_acl)) + goto out_noacl; + + /* No errors! Assume that Sun nfsacls are supported */ + server->caps |= NFS_CAP_ACLS; + return; + +out_noacl: + server->caps &= ~NFS_CAP_ACLS; +} +#else +static inline void nfs_init_server_aclclient(struct nfs_server *server) +{ + server->flags &= ~NFS_MOUNT_NOACL; + server->caps &= ~NFS_CAP_ACLS; +} +#endif + +struct nfs_server *nfs3_create_server(const struct nfs_parsed_mount_data *data, + struct nfs_fh *mntfh) +{ + struct nfs_server *server = nfs_create_server(data, mntfh); + /* Create a client RPC handle for the NFS v3 ACL management interface */ + if (server) + nfs_init_server_aclclient(server); + return server; +} + +struct nfs_server *nfs3_clone_server(struct nfs_server *source, + struct nfs_fh *fh, + struct nfs_fattr *fattr) +{ + struct nfs_server *server = nfs_clone_server(source, fh, fattr); + if (server && !IS_ERR(source->client_acl)) + nfs_init_server_aclclient(server); + return server; +} diff --git a/fs/nfs/nfs3super.c b/fs/nfs/nfs3super.c index 7bdd388..5702895 100644 --- a/fs/nfs/nfs3super.c +++ b/fs/nfs/nfs3super.c @@ -4,8 +4,13 @@ #include #include #include +#include "internal.h" #include "nfs.h" +/* From nfs3client.c */ +struct nfs_server *nfs3_create_server(const struct nfs_parsed_mount_data *, struct nfs_fh *); +struct nfs_server *nfs3_clone_server(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *); + static void nfs3_reference(void) { try_module_get(THIS_MODULE); @@ -21,7 +26,7 @@ struct dentry *nfs3_fs_mount(struct file_system_type *fs_type, struct nfs_fh *mntfh, struct nfs_parsed_mount_data *data) { - struct nfs_server *server = nfs_create_server(data, mntfh); + struct nfs_server *server = nfs3_create_server(data, mntfh); if (IS_ERR(server)) return ERR_CAST(server); return _nfs_fs_mount(fs_type, server, flags, dev_name, mntfh, data); @@ -30,7 +35,10 @@ struct dentry *nfs3_fs_mount(struct file_system_type *fs_type, static struct dentry *nfs3_xdev_mount(int flags, const char *dev_name, struct nfs_clone_mount *data) { - return _nfs_xdev_mount(&nfs_fs_type, flags, dev_name, data, NFS_MOUNT_UNSHARED); + struct nfs_server *server = nfs3_clone_server(NFS_SB(data->sb), data->fh, data->fattr); + if (IS_ERR(server)) + return ERR_CAST(server); + return _nfs_xdev_mount(&nfs_fs_type, server, flags, dev_name, data, NFS_MOUNT_UNSHARED); } static struct nfs_subversion nfs_v3 = { diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c index 8a297c5..f6c8f9f 100644 --- a/fs/nfs/nfs4super.c +++ b/fs/nfs/nfs4super.c @@ -4,6 +4,7 @@ #include #include #include +#include "internal.h" #include "nfs4_fs.h" #include "nfs.h" @@ -31,7 +32,10 @@ struct dentry *nfs4_fs_mount(struct file_system_type *fs_type, struct dentry *nfs4_xdev_mount(int flags, const char *dev_name, struct nfs_clone_mount *data) { - return _nfs_xdev_mount(&nfs4_fs_type, flags, dev_name, data, NFS4_MOUNT_UNSHARED); + struct nfs_server *server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); + if (IS_ERR(server)) + return ERR_CAST(server); + return _nfs_xdev_mount(&nfs4_fs_type, server, flags, dev_name, data, NFS4_MOUNT_UNSHARED); } static struct nfs_subversion nfs_v4 = { diff --git a/fs/nfs/super.c b/fs/nfs/super.c index e6c62b5..ec5287d 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2373,12 +2373,11 @@ static void nfs_kill_super(struct super_block *s) * Clone an NFS2/3 server record on xdev traversal (FSID-change) */ struct dentry * -_nfs_xdev_mount(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data, int unshared_flag) +_nfs_xdev_mount(struct file_system_type *fs_type, struct nfs_server *server, + int flags, const char *dev_name, void *raw_data, int unshared_flag) { struct nfs_clone_mount *data = raw_data; struct super_block *s; - struct nfs_server *server; struct dentry *mntroot; int (*compare_super)(struct super_block *, void *) = nfs_compare_super; struct nfs_sb_mountdata sb_mntdata = { @@ -2388,12 +2387,6 @@ _nfs_xdev_mount(struct file_system_type *fs_type, int flags, dprintk("--> _nfs_xdev_mount()\n"); - /* create a new volume representation */ - server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); - if (IS_ERR(server)) { - error = PTR_ERR(server); - goto out_err_noserver; - } sb_mntdata.server = server; if (server->flags & unshared_flag) @@ -2446,7 +2439,6 @@ _nfs_xdev_mount(struct file_system_type *fs_type, int flags, out_err_nosb: nfs_free_server(server); -out_err_noserver: dprintk("<-- _nfs_xdev_mount() = %d [error]\n", error); return ERR_PTR(error); -- 1.7.9