constify fsnotify_parent()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/notify/fsnotify.c

@@ -86,7 +86,7 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode)
 }
 
 /* Notify this dentry's parent about a child's events. */
-int __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
+int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask)
 {
 	struct dentry *parent;
 	struct inode *p_inode;

include/linux/fsnotify.h

@@ -17,7 +17,7 @@
 #include <linux/bug.h>
 
 /* Notify this dentry's parent about a child's events. */
-static inline int fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
+static inline int fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask)
 {
 	if (!dentry)
 		dentry = path->dentry;

include/linux/fsnotify_backend.h

@@ -247,7 +247,7 @@ struct fsnotify_mark {
 /* main fsnotify call to send events */
 extern int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
 		    const unsigned char *name, u32 cookie);
-extern int __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask);
+extern int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask);
 extern void __fsnotify_inode_delete(struct inode *inode);
 extern void __fsnotify_vfsmount_delete(struct vfsmount *mnt);
 extern u32 fsnotify_get_cookie(void);
@@ -363,7 +363,7 @@ static inline int fsnotify(struct inode *to_tell, __u32 mask, const void *data,
 	return 0;
 }
 
-static inline int __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
+static inline int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask)
 {
 	return 0;
 }