nd_jump_link(): constify path

Al Viro · Al Viro · commit ea4af4aa03c3 · 2022-09-01T17:39:49.000-04:00
Reviewed-by: Christian Brauner (Microsoft) &lt;brauner@kernel.org&gt;
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
diff --git a/fs/namei.c b/fs/namei.c
@@ -986,7 +986,7 @@ static int nd_jump_root(struct nameidata *nd)
  * Helper to directly jump to a known parsed path from ->get_link,
  * caller must have taken a reference to path beforehand.
  */
-int nd_jump_link(struct path *path)
+int nd_jump_link(const struct path *path)
 {
 	int error = -ELOOP;
 	struct nameidata *nd = current->nameidata;
diff --git a/include/linux/namei.h b/include/linux/namei.h
@@ -83,7 +83,7 @@ extern int follow_up(struct path *);
 extern struct dentry *lock_rename(struct dentry *, struct dentry *);
 extern void unlock_rename(struct dentry *, struct dentry *);
 
-extern int __must_check nd_jump_link(struct path *path);
+extern int __must_check nd_jump_link(const struct path *path);
 
 static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)
 {

Original file line number	Diff line number	Diff line change
`@@ -986,7 +986,7 @@ static int nd_jump_root(struct nameidata *nd)`
`986`	`986`	`* Helper to directly jump to a known parsed path from ->get_link,`
`987`	`987`	`* caller must have taken a reference to path beforehand.`
`988`	`988`	`*/`
`989`		`-int nd_jump_link(struct path *path)`
	`989`	`+int nd_jump_link(const struct path *path)`
`990`	`990`	`{`
`991`	`991`	`int error = -ELOOP;`
`992`	`992`	`struct nameidata *nd = current->nameidata;`
Original file line number	Diff line number	Diff line change
`@@ -83,7 +83,7 @@ extern int follow_up(struct path *);`
`83`	`83`	`extern struct dentry lock_rename(struct dentry , struct dentry *);`
`84`	`84`	`extern void unlock_rename(struct dentry , struct dentry );`
`85`	`85`
`86`		`-extern int __must_check nd_jump_link(struct path *path);`
	`86`	`+extern int __must_check nd_jump_link(const struct path *path);`
`87`	`87`
`88`	`88`	`static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)`
`89`	`89`	`{`