TOMOYO: Explicitly set file_operations->llseek pointer.

TOMOYO does not deal offset pointer. Thus seek operation makes
no sense. Changing default seek operation from default_llseek()
to no_llseek() might break some applications. Thus, explicitly
set noop_llseek().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>

security/tomoyo/securityfs_if.c

@@ -95,6 +95,7 @@ static const struct file_operations tomoyo_operations = {
 	.poll    = tomoyo_poll,
 	.read    = tomoyo_read,
 	.write   = tomoyo_write,
+	.llseek  = noop_llseek,
 };
 
 /**