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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-05-09 16:27:39 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-16 14:42:41 +0200 |
| commit | 473e66baad1e83e6c5dfdca65aba03bf21727202 (patch) | |
| tree | aab0bd4a295b41d1e29952b2b1260ad72150496b /drivers/s390 | |
| parent | 2739b6d12407792f253b7a15233930338e6831c9 (diff) | |
| download | linux-3.10-473e66baad1e83e6c5dfdca65aba03bf21727202.tar.gz linux-3.10-473e66baad1e83e6c5dfdca65aba03bf21727202.tar.bz2 linux-3.10-473e66baad1e83e6c5dfdca65aba03bf21727202.zip | |
s390/time: always use stckf instead of stck if available
The store clock fast instruction saves a couple of instructions compared
to the store clock instruction. Always use stckf instead of stck if it
is available.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 19902cdc6fa..7493efafa0d 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -517,7 +517,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q) int count, stop; unsigned char state = 0; - q->timestamp = get_clock_fast(); + q->timestamp = get_clock(); /* * Don't check 128 buffers, as otherwise qdio_inbound_q_moved @@ -788,7 +788,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q) int count, stop; unsigned char state = 0; - q->timestamp = get_clock_fast(); + q->timestamp = get_clock(); if (need_siga_sync(q)) if (((queue_type(q) != QDIO_IQDIO_QFMT) && |