[PATCH] remove obsolete kern_umount alias for mntput

fs/devpts/inode.c

@@ -180,7 +180,7 @@ static int __init init_devpts_fs(void)
 static void __exit exit_devpts_fs(void)
 {
 	unregister_filesystem(&devpts_fs_type);
-	kern_umount(devpts_mnt);
+	mntput(devpts_mnt);
 }
 
 module_init(init_devpts_fs)

include/linux/fs.h

@@ -992,8 +992,6 @@ extern struct vfsmount *kern_mount(struct file_system_type *);
 extern int may_umount(struct vfsmount *);
 extern long do_mount(char *, char *, char *, unsigned long, void *);
 
-#define kern_umount mntput
-
 extern int vfs_statfs(struct super_block *, struct statfs *);
 
 /* Return value for VFS lock functions - tells locks.c to lock conventionally