tty: Convert SAK messages to tty_notice()

Use tty_notice() for unified message format from the tty core.
Fix each message to accurately reflect the cause of each termination.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/tty_io.c

@@ -3026,28 +3026,24 @@ void __do_SAK(struct tty_struct *tty)
 	read_lock(&tasklist_lock);
 	/* Kill the entire session */
 	do_each_pid_task(session, PIDTYPE_SID, p) {
-		printk(KERN_NOTICE "SAK: killed process %d"
-			" (%s): task_session(p)==tty->session\n",
-			task_pid_nr(p), p->comm);
+		tty_notice(tty, "SAK: killed process %d (%s): by session\n",
+			   task_pid_nr(p), p->comm);
 		send_sig(SIGKILL, p, 1);
 	} while_each_pid_task(session, PIDTYPE_SID, p);
-	/* Now kill any processes that happen to have the
-	 * tty open.
-	 */
+
+	/* Now kill any processes that happen to have the tty open */
 	do_each_thread(g, p) {
 		if (p->signal->tty == tty) {
-			printk(KERN_NOTICE "SAK: killed process %d"
-			    " (%s): task_session(p)==tty->session\n",
-			    task_pid_nr(p), p->comm);
+			tty_notice(tty, "SAK: killed process %d (%s): by controlling tty\n",
+				   task_pid_nr(p), p->comm);
 			send_sig(SIGKILL, p, 1);
 			continue;
 		}
 		task_lock(p);
 		i = iterate_fd(p->files, 0, this_tty, tty);
 		if (i != 0) {
-			printk(KERN_NOTICE "SAK: killed process %d"
-			    " (%s): fd#%d opened to the tty\n",
-				    task_pid_nr(p), p->comm, i - 1);
+			tty_notice(tty, "SAK: killed process %d (%s): by fd#%d\n",
+				   task_pid_nr(p), p->comm, i - 1);
 			force_sig(SIGKILL, p);
 		}
 		task_unlock(p);