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s390: add barriers to qeth driver
authorFrank Blaschka <frank.blaschka@de.ibm.com>
Thu, 12 Jul 2007 10:51:35 +0000 (12:51 +0200)
committerJeff Garzik <jeff@garzik.org>
Mon, 16 Jul 2007 22:28:04 +0000 (18:28 -0400)
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 patch | blob | blame | history

diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index 8dca93598ea3f243390ca7ddba811e29a7a17cba..57f69434fbf9f2319b5b9a6ac33692c80474d546 100644 (file)
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -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);