diff options
| -rw-r--r-- | fs/nfs/super.c | 107 |
1 files changed, 31 insertions, 76 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index fc6270120543..c3ae81918550 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -283,6 +283,7 @@ struct nfs_mount_info { int (*set_security)(struct super_block *, struct dentry *, struct nfs_mount_info *); struct nfs_parsed_mount_data *parsed; struct nfs_clone_mount *cloned; + struct nfs_fh *mntfh; }; static void nfs_umount_begin(struct super_block *); @@ -292,8 +293,7 @@ static int nfs_show_devname(struct seq_file *, struct dentry *); static int nfs_show_path(struct seq_file *, struct dentry *); static int nfs_show_stats(struct seq_file *, struct dentry *); static struct dentry *nfs_fs_mount_common(struct file_system_type *, - struct nfs_server *, int, const char *, struct nfs_fh *, - struct nfs_mount_info *); + struct nfs_server *, int, const char *, struct nfs_mount_info *); static struct dentry *nfs_fs_mount(struct file_system_type *, int, const char *, void *); static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type, @@ -338,9 +338,7 @@ static void nfs4_validate_mount_flags(struct nfs_parsed_mount_data *); static int nfs4_validate_mount_data(void *options, struct nfs_parsed_mount_data *args, const char *dev_name); static struct dentry *nfs4_try_mount(int flags, const char *dev_name, - struct nfs_parsed_mount_data *data); -static struct dentry *nfs4_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data); + struct nfs_mount_info *mount_info); static struct dentry *nfs4_remote_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data); static struct dentry *nfs4_xdev_mount(struct file_system_type *fs_type, @@ -354,7 +352,7 @@ static void nfs4_kill_super(struct super_block *sb); static struct file_system_type nfs4_fs_type = { .owner = THIS_MODULE, .name = "nfs4", - .mount = nfs4_mount, + .mount = nfs_fs_mount, .kill_sb = nfs4_kill_super, .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, }; @@ -1751,24 +1749,23 @@ static int nfs_request_mount(struct nfs_parsed_mount_data *args, } static struct dentry *nfs_try_mount(int flags, const char *dev_name, - struct nfs_fh *mntfh, struct nfs_mount_info *mount_info) { int status; struct nfs_server *server; if (mount_info->parsed->need_mount) { - status = nfs_request_mount(mount_info->parsed, mntfh); + status = nfs_request_mount(mount_info->parsed, mount_info->mntfh); if (status) return ERR_PTR(status); } /* Get a volume representation */ - server = nfs_create_server(mount_info->parsed, mntfh); + server = nfs_create_server(mount_info->parsed, mount_info->mntfh); if (IS_ERR(server)) return ERR_CAST(server); - return nfs_fs_mount_common(&nfs_fs_type, server, flags, dev_name, mntfh, mount_info); + return nfs_fs_mount_common(&nfs_fs_type, server, flags, dev_name, mount_info); } /* @@ -2394,7 +2391,6 @@ static int nfs_clone_sb_security(struct super_block *s, struct dentry *mntroot, static struct dentry *nfs_fs_mount_common(struct file_system_type *fs_type, struct nfs_server *server, int flags, const char *dev_name, - struct nfs_fh *mntfh, struct nfs_mount_info *mount_info) { struct super_block *s; @@ -2437,7 +2433,7 @@ static struct dentry *nfs_fs_mount_common(struct file_system_type *fs_type, nfs_get_cache_cookie(s, mount_info->parsed, mount_info->cloned); } - mntroot = nfs_get_root(s, mntfh, dev_name); + mntroot = nfs_get_root(s, mount_info->mntfh, dev_name); if (IS_ERR(mntroot)) goto error_splat_super; @@ -2472,17 +2468,16 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type, .fill_super = nfs_fill_super, .set_security = nfs_set_sb_security, }; - struct nfs_fh *mntfh; struct dentry *mntroot = ERR_PTR(-ENOMEM); int error; mount_info.parsed = nfs_alloc_parsed_mount_data(); - mntfh = nfs_alloc_fhandle(); - if (mount_info.parsed == NULL || mntfh == NULL) + mount_info.mntfh = nfs_alloc_fhandle(); + if (mount_info.parsed == NULL || mount_info.mntfh == NULL) goto out; /* Validate the mount data */ - error = nfs_validate_mount_data(fs_type, raw_data, mount_info.parsed, mntfh, dev_name); + error = nfs_validate_mount_data(fs_type, raw_data, mount_info.parsed, mount_info.mntfh, dev_name); if (error == NFS_TEXT_DATA) error = nfs_validate_text_mount_data(raw_data, mount_info.parsed, dev_name); if (error < 0) { @@ -2492,14 +2487,14 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type, #ifdef CONFIG_NFS_V4 if (mount_info.parsed->version == 4) - mntroot = nfs4_try_mount(flags, dev_name, mount_info.parsed); + mntroot = nfs4_try_mount(flags, dev_name, &mount_info); else #endif /* CONFIG_NFS_V4 */ - mntroot = nfs_try_mount(flags, dev_name, mntfh, &mount_info); + mntroot = nfs_try_mount(flags, dev_name, &mount_info); out: nfs_free_parsed_mount_data(mount_info.parsed); - nfs_free_fhandle(mntfh); + nfs_free_fhandle(mount_info.mntfh); return mntroot; } @@ -2540,6 +2535,8 @@ nfs_xdev_mount_common(struct file_system_type *fs_type, int flags, dprintk("--> nfs_xdev_mount_common()\n"); + mount_info->mntfh = data->fh; + /* create a new volume representation */ server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr, data->authflavor); if (IS_ERR(server)) { @@ -2547,7 +2544,7 @@ nfs_xdev_mount_common(struct file_system_type *fs_type, int flags, goto out_err; } - mntroot = nfs_fs_mount_common(fs_type, server, flags, dev_name, data->fh, mount_info); + mntroot = nfs_fs_mount_common(fs_type, server, flags, dev_name, mount_info); dprintk("<-- nfs_xdev_mount_common() = 0\n"); out: return mntroot; @@ -2712,33 +2709,25 @@ out_no_address: */ static struct dentry * nfs4_remote_mount(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data) + const char *dev_name, void *info) { - struct nfs_mount_info mount_info = { - .fill_super = nfs4_fill_super, - .set_security = nfs_set_sb_security, - .parsed = raw_data, - }; + struct nfs_mount_info *mount_info = info; struct nfs_server *server; - struct nfs_fh *mntfh; struct dentry *mntroot = ERR_PTR(-ENOMEM); - mntfh = nfs_alloc_fhandle(); - if (mount_info.parsed == NULL || mntfh == NULL) - goto out; + mount_info->fill_super = nfs4_fill_super; + mount_info->set_security = nfs_set_sb_security; /* Get a volume representation */ - server = nfs4_create_server(mount_info.parsed, mntfh); + server = nfs4_create_server(mount_info->parsed, mount_info->mntfh); if (IS_ERR(server)) { mntroot = ERR_CAST(server); goto out; } - mntroot = nfs_fs_mount_common(fs_type, server, flags, - dev_name, mntfh, &mount_info); + mntroot = nfs_fs_mount_common(fs_type, server, flags, dev_name, mount_info); out: - nfs_free_fhandle(mntfh); return mntroot; } @@ -2851,17 +2840,18 @@ static struct dentry *nfs_follow_remote_path(struct vfsmount *root_mnt, } static struct dentry *nfs4_try_mount(int flags, const char *dev_name, - struct nfs_parsed_mount_data *data) + struct nfs_mount_info *mount_info) { char *export_path; struct vfsmount *root_mnt; struct dentry *res; + struct nfs_parsed_mount_data *data = mount_info->parsed; dfprintk(MOUNT, "--> nfs4_try_mount()\n"); export_path = data->nfs_server.export_path; data->nfs_server.export_path = "/"; - root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, data, + root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, mount_info, data->nfs_server.hostname); data->nfs_server.export_path = export_path; @@ -2873,40 +2863,6 @@ static struct dentry *nfs4_try_mount(int flags, const char *dev_name, return res; } -/* - * Get the superblock for an NFS4 mountpoint - */ -static struct dentry *nfs4_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data) -{ - struct nfs_parsed_mount_data *data; - int error = -ENOMEM; - struct dentry *res = ERR_PTR(-ENOMEM); - - data = nfs_alloc_parsed_mount_data(); - if (data == NULL) - goto out; - - /* Validate the mount data */ - error = nfs_validate_mount_data(fs_type, raw_data, data, NULL, dev_name); - if (error == NFS_TEXT_DATA) - error = nfs_validate_text_mount_data(raw_data, data, dev_name); - if (error < 0) { - res = ERR_PTR(error); - goto out; - } - - res = nfs4_try_mount(flags, dev_name, data); - if (IS_ERR(res)) - error = PTR_ERR(res); - -out: - nfs_free_parsed_mount_data(data); - dprintk("<-- nfs4_mount() = %d%s\n", error, - error != 0 ? " [error]" : ""); - return res; -} - static void nfs4_kill_super(struct super_block *sb) { struct nfs_server *server = NFS_SB(sb); @@ -2945,24 +2901,23 @@ nfs4_remote_referral_mount(struct file_system_type *fs_type, int flags, }; struct nfs_server *server; struct dentry *mntroot = ERR_PTR(-ENOMEM); - struct nfs_fh *mntfh; dprintk("--> nfs4_referral_get_sb()\n"); - mntfh = nfs_alloc_fhandle(); - if (mount_info.cloned == NULL || mntfh == NULL) + mount_info.mntfh = nfs_alloc_fhandle(); + if (mount_info.cloned == NULL || mount_info.mntfh == NULL) goto out; /* create a new volume representation */ - server = nfs4_create_referral_server(mount_info.cloned, mntfh); + server = nfs4_create_referral_server(mount_info.cloned, mount_info.mntfh); if (IS_ERR(server)) { mntroot = ERR_CAST(server); goto out; } - mntroot = nfs_fs_mount_common(&nfs4_fs_type, server, flags, dev_name, mntfh, &mount_info); + mntroot = nfs_fs_mount_common(&nfs4_fs_type, server, flags, dev_name, &mount_info); out: - nfs_free_fhandle(mntfh); + nfs_free_fhandle(mount_info.mntfh); return mntroot; } |
