[PATCH] fs/dcache.c: update comment of d_validate()

Parameters @hash and @len have been removed since 2.4.3,
now just to delete them.
Signed-off-by: NQinghuang Feng <qhfeng.kernel@gmail.com>

fs/dcache.c

@@ -1462,8 +1462,6 @@ struct dentry *d_hash_and_lookup(struct dentry *dir, struct qstr *name)
  * d_validate - verify dentry provided from insecure source
  * @dentry: The dentry alleged to be valid child of @dparent
  * @dparent: The parent dentry (known to be valid)
- * @hash: Hash of the dentry
- * @len: Length of the name
  *
  * An insecure source has sent us a dentry, here we verify it and dget() it.
  * This is used by ncpfs in its readdir implementation.