s390: add barriers to qeth driver
Frank Blaschka [Thu, 12 Jul 2007 10:51:35 +0000 (12:51 +0200)]
Add barrier to loop where atomic variable is evaluated.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/s390/net/qeth_main.c

index 8dca935..57f6943 100644 (file)
@@ -1935,6 +1935,7 @@ qeth_send_control_data(struct qeth_card *card, int len,
                        atomic_inc(&reply->received);
                        wake_up(&reply->wait_q);
                }
+               cpu_relax();
        };
        rc = reply->rc;
        qeth_put_reply(reply);