sched: Move SCHED_DEBUG sysctl to debugfs
Stop polluting sysctl with undocumented knobs that really are debug
only, move them all to /debug/sched/ along with the existing
/debug/sched_* files that already exist.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210412102001.287610138@infradead.org
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 9b8ae02..b3ea14c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -49,7 +49,7 @@ static unsigned int normalized_sysctl_sched_latency = 6000000ULL;
*
* (default SCHED_TUNABLESCALING_LOG = *(1+ilog(ncpus))
*/
-enum sched_tunable_scaling sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_LOG;
+unsigned int sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_LOG;
/*
* Minimal preemption granularity for CPU-bound tasks:
@@ -634,15 +634,10 @@ struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
* Scheduling class statistics methods:
*/
-int sched_proc_update_handler(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+int sched_update_scaling(void)
{
- int ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
unsigned int factor = get_update_sysctl_factor();
- if (ret || !write)
- return ret;
-
sched_nr_latency = DIV_ROUND_UP(sysctl_sched_latency,
sysctl_sched_min_granularity);