[PATCH v2 0/9] sched: Clean up SCHED_DEBUG

[Peter Zijlstra]

We currently have sysctl, procfs and debugfs SCHED_DEBUG interfaces, end the
insanity and move (most) everything to debugfs.

And since this is a nice moment to have people re-evaluate their 'tunings' also
change how some of the values work.

v2:
 - picked up tags
 - latestest version of that debugfs_create_str() thing
   (no extra \0, no export, no write) (rasmus)
 - re-added missing __cpumask_clear_cpu() (valsch)
 - use min() for BASE_SLICE (vingu)