diff options
| author | Sebastian Ott <sebott@linux.ibm.com> | 2018-06-26 16:09:32 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-07-17 08:27:55 +0300 |
| commit | d4f5d79e97ca6e903700d3d9455afb5694cc4833 (patch) | |
| tree | 13104c4b30fa7e9360f366c4e526640627705652 /drivers/s390/cio/cio.h | |
| parent | 05b217f4c5573f34f6799698f7d4162c702132bc (diff) | |
| download | linux-d4f5d79e97ca6e903700d3d9455afb5694cc4833.tar.xz | |
s390/css: reduce stsch calls
Both css_evaluate_new_subchannel and cio_validate_subchannel used
stsch and css_sch_is_valid to check for a valid device.
Reduce stsch calls during subchannel evaluation by re-using schib
data. Also the type/devno valid information is only checked once.
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/cio.h')
| -rw-r--r-- | drivers/s390/cio/cio.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index 234aa068dd8f..9811fd8a0c73 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -119,7 +119,6 @@ DECLARE_PER_CPU(struct irb, cio_irb); #define to_subchannel(n) container_of(n, struct subchannel, dev) -extern int cio_validate_subchannel(struct subchannel_id, struct schib *); extern int cio_enable_subchannel(struct subchannel *, u32); extern int cio_disable_subchannel (struct subchannel *); extern int cio_cancel (struct subchannel *); |