nfs: don't bother passing nfs_subversion to ->try_mount() and nfs_fs_mount_common()

Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 9888e9c..4a0ba66 100644 (file)
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -393,12 +393,10 @@ extern struct file_system_type nfs_xdev_fs_type;
 extern struct file_system_type nfs4_referral_fs_type;
 #endif
 bool nfs_auth_info_match(const struct nfs_auth_info *, rpc_authflavor_t);
-struct dentry *nfs_try_mount(int, const char *, struct nfs_mount_info *,
-                       struct nfs_subversion *);
+struct dentry *nfs_try_mount(int, const char *, struct nfs_mount_info *);
 int nfs_set_sb_security(struct super_block *, struct dentry *, struct nfs_mount_info *);
 int nfs_clone_sb_security(struct super_block *, struct dentry *, struct nfs_mount_info *);
-struct dentry *nfs_fs_mount_common(int, const char *,
-                                  struct nfs_mount_info *, struct nfs_subversion *);
+struct dentry *nfs_fs_mount_common(int, const char *, struct nfs_mount_info *);
 struct dentry *nfs_fs_mount(struct file_system_type *, int, const char *, void *);
 struct dentry * nfs_xdev_mount_common(struct file_system_type *, int,
                const char *, struct nfs_mount_info *);

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index a7a73b1..5d539dc 100644 (file)
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -526,7 +526,7 @@ extern const nfs4_stateid invalid_stateid;
 /* nfs4super.c */
 struct nfs_mount_info;
 extern struct nfs_subversion nfs_v4;
-struct dentry *nfs4_try_mount(int, const char *, struct nfs_mount_info *, struct nfs_subversion *);
+struct dentry *nfs4_try_mount(int, const char *, struct nfs_mount_info *);
 extern bool nfs4_disable_idmapping;
 extern unsigned short max_session_slots;
 extern unsigned short max_session_cb_slots;

diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index 6e54170..2b34d8e 100644 (file)
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -98,7 +98,7 @@ static struct dentry *
 nfs4_remote_mount(struct file_system_type *fs_type, int flags,
                  const char *dev_name, void *info)
 {
-       return nfs_fs_mount_common(flags, dev_name, info, &nfs_v4);
+       return nfs_fs_mount_common(flags, dev_name, info);
 }
 
 struct nfs_referral_count {
@@ -216,8 +216,7 @@ static struct dentry *do_nfs4_mount(struct nfs_server *server, int flags,
 }
 
 struct dentry *nfs4_try_mount(int flags, const char *dev_name,
-                             struct nfs_mount_info *mount_info,
-                             struct nfs_subversion *nfs_mod)
+                             struct nfs_mount_info *mount_info)
 {
        struct nfs_parsed_mount_data *data = mount_info->parsed;
        struct dentry *res;

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6189f76..cb0ead6 100644 (file)
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1893,15 +1893,15 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
 }
 
 struct dentry *nfs_try_mount(int flags, const char *dev_name,
-                            struct nfs_mount_info *mount_info,
-                            struct nfs_subversion *nfs_mod)
+                            struct nfs_mount_info *mount_info)
 {
+       struct nfs_subversion *nfs_mod = mount_info->nfs_mod;
        if (mount_info->parsed->need_mount)
                mount_info->server = nfs_try_mount_request(mount_info, nfs_mod);
        else
                mount_info->server = nfs_mod->rpc_ops->create_server(mount_info, nfs_mod);
 
-       return nfs_fs_mount_common(flags, dev_name, mount_info, nfs_mod);
+       return nfs_fs_mount_common(flags, dev_name, mount_info);
 }
 EXPORT_SYMBOL_GPL(nfs_try_mount);
 
@@ -2648,8 +2648,7 @@ static void nfs_set_readahead(struct backing_dev_info *bdi,
 }
 
 struct dentry *nfs_fs_mount_common(int flags, const char *dev_name,
-                                  struct nfs_mount_info *mount_info,
-                                  struct nfs_subversion *nfs_mod)
+                                  struct nfs_mount_info *mount_info)
 {
        struct super_block *s;
        struct dentry *mntroot = ERR_PTR(-ENOMEM);
@@ -2677,7 +2676,8 @@ struct dentry *nfs_fs_mount_common(int flags, const char *dev_name,
                        sb_mntdata.mntflags |= SB_SYNCHRONOUS;
 
        /* Get a superblock - note that we may end up sharing one that already exists */
-       s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata);
+       s = sget(mount_info->nfs_mod->nfs_fs, compare_super, nfs_set_super,
+                flags, &sb_mntdata);
        if (IS_ERR(s)) {
                mntroot = ERR_CAST(s);
                goto out_err_nosb;
@@ -2763,7 +2763,7 @@ struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
        }
        mount_info.nfs_mod = nfs_mod;
 
-       mntroot = nfs_mod->rpc_ops->try_mount(flags, dev_name, &mount_info, nfs_mod);
+       mntroot = nfs_mod->rpc_ops->try_mount(flags, dev_name, &mount_info);
 
        put_nfs_version(nfs_mod);
 out:
@@ -2797,10 +2797,7 @@ static struct dentry *
 nfs_xdev_mount(struct file_system_type *fs_type, int flags,
                const char *dev_name, void *raw_data)
 {
-       struct nfs_mount_info *info = raw_data;
-       struct nfs_subversion *nfs_mod = NFS_SB(info->cloned->sb)->nfs_client->cl_nfs_mod;
-
-       return nfs_fs_mount_common(flags, dev_name, info, nfs_mod);
+       return nfs_fs_mount_common(flags, dev_name, raw_data);
 }
 
 #if IS_ENABLED(CONFIG_NFS_V4)

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 72d5695..3ee2ad6 100644 (file)
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1655,8 +1655,7 @@ struct nfs_rpc_ops {
                            struct nfs_fsinfo *);
        struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
                                      struct nfs_fh *, struct nfs_fattr *);
-       struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
-                                    struct nfs_subversion *);
+       struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *);
        int     (*getattr) (struct nfs_server *, struct nfs_fh *,
                            struct nfs_fattr *, struct nfs4_label *,
                            struct inode *);