[S390] Small barrier() and cpu_relax() cleanup.

cpu_relax() has barrier() semantics hence there is no need to use both
of them in conjunction in sclp_sync_wait(). Also change cpu_relax()
so it's more obvious that it has barrier semantics.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 027cdc18df31..c1dd19bb7bf8 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -433,7 +433,6 @@ sclp_sync_wait(void)
                     get_clock() > timeout &&
                     del_timer(&sclp_request_timer))
                         sclp_request_timer.function(sclp_request_timer.data);
-                barrier();
                 cpu_relax();
         }
         local_irq_disable();