[PATCH v2 0/3] Disable sched_numa_balancing on uma systems

[Srikar Dronamraju <srikar@linux.vnet.ibm.com>]

With recent commit 2a1ed24 ("sched/numa: Prefer NUMA hotness over cache
hotness") sets sched feature NUMA to true. This can enable numa hinting
faults on a uma system.

This patchset ensures that numa hinting faults occur only on a numa system
by setting/resetting sched_numa_balancing.

This patchset
- Renames numabalancing_enabled to sched_numa_balancing
- Makes sched_numa_balancing common to CONFIG_SCHED_DEBUG and
  !CONFIG_SCHED_DEBUG. Earlier it was only in !CONFIG_SCHED_DEBUG
- Checks for sched_numa_balancing instead of sched_feat(NUMA)
- Removes NUMA sched feature

Srikar Dronamraju (3):
  sched/numa: Rename numabalancing_enabled to sched_numa_balancing
  sched/numa: Disable sched_numa_balancing on uma systems
  sched/numa: Remove NUMA sched feature

 kernel/sched/core.c     | 16 +++-------------
 kernel/sched/fair.c     |  8 ++++----
 kernel/sched/features.h | 16 ----------------
 kernel/sched/sched.h    | 10 ++--------
 4 files changed, 9 insertions(+), 41 deletions(-)

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1.8.3.1