Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next

[deliverable/linux.git] / include / linux / kernfs.h

diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index af51df35d74909935083845f606c6936ce353666..30f089ebe0a4540a91053f406526f323bd1d24f0 100644 (file)
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -152,6 +152,8 @@ struct kernfs_syscall_ops {
        int (*rmdir)(struct kernfs_node *kn);
        int (*rename)(struct kernfs_node *kn, struct kernfs_node *new_parent,
                      const char *new_name);
+       int (*show_path)(struct seq_file *sf, struct kernfs_node *kn,
+                        struct kernfs_root *root);
 };
 
 struct kernfs_root {
@@ -267,8 +269,9 @@ static inline bool kernfs_ns_enabled(struct kernfs_node *kn)
 
 int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen);
 size_t kernfs_path_len(struct kernfs_node *kn);
-char * __must_check kernfs_path(struct kernfs_node *kn, char *buf,
-                               size_t buflen);
+int kernfs_path_from_node(struct kernfs_node *root_kn, struct kernfs_node *kn,
+                         char *buf, size_t buflen);
+char *kernfs_path(struct kernfs_node *kn, char *buf, size_t buflen);
 void pr_cont_kernfs_name(struct kernfs_node *kn);
 void pr_cont_kernfs_path(struct kernfs_node *kn);
 struct kernfs_node *kernfs_get_parent(struct kernfs_node *kn);
@@ -283,6 +286,8 @@ struct kernfs_node *kernfs_node_from_dentry(struct dentry *dentry);
 struct kernfs_root *kernfs_root_from_sb(struct super_block *sb);
 struct inode *kernfs_get_inode(struct super_block *sb, struct kernfs_node *kn);
 
+struct dentry *kernfs_node_dentry(struct kernfs_node *kn,
+                                 struct super_block *sb);
 struct kernfs_root *kernfs_create_root(struct kernfs_syscall_ops *scops,
                                       unsigned int flags, void *priv);
 void kernfs_destroy_root(struct kernfs_root *root);
@@ -338,8 +343,8 @@ static inline int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen)
 static inline size_t kernfs_path_len(struct kernfs_node *kn)
 { return 0; }
 
-static inline char * __must_check kernfs_path(struct kernfs_node *kn, char *buf,
-                                             size_t buflen)
+static inline char *kernfs_path(struct kernfs_node *kn, char *buf,
+                               size_t buflen)
 { return NULL; }
 
 static inline void pr_cont_kernfs_name(struct kernfs_node *kn) { }