[rt-tests,v4,00/16] rt-numa.h cleanups

This series cleans up the rt-numa.h header.

As we have a hard dependency on libnuma we can simplify the code in
cyclictest. This allows remove all the small helpers in rt_numa.h. And
with this we can remove the header and reduce the confusion with
rt-numa.h

While at it, I simplified the --smp vs --affinity vs --threads
logic. There is no need for additional variables to keep state. With
this we also make --affinity to behave as with the rest of
rt-tests. That is a plan -a will be the same as with -S. There is no
need for -S anymore but I think we should leave it in place for
backwards compatibility. I suspect, there must be a lot of muscle
memory out there :)

Since signaltest has the same code as cyclictest, cleanup this tool as
well.

With all those cleanups in cyclictest and signaltest, rt-numa.h
contains only a three functions. The final part of the series is to
remove unnecessary function arguments (max_cpus). This also fixes the
theoretical problem that a sparse cpumask would not be handled
correctly.

v4:
 - build fix becaue of error.c -> rt-error.c

v3:
 - added error handling for numa_on_node() return value
 - added 'Rename error.h to rt-error.h' patch
 - rebased, dropped applied patches
 - fixed SoBs and stearing vs sterring spelling error

v2:
  - added more cleanup patches

Daniel Wagner (16):
  cyclictest: Use numa API directly
  cyclictest: Mimic --smp behavior with --affinity
  cyclictest: Simplify --smp vs --affinity vs --threads argument logic
  signaltest: Use affinity_mask for steering thread placement
  signaltest: Simplify --smp vs --affinity vs --threads argument logic
  rt-numa: Remove unused definitions and numa_initialize()
  rt-numa: Add generic cpu_for_thread() helper
  rt-numa: Use mask size for iterator limit
  rt-numa: Remove max_cpus argument from parse_cpusmask
  signaltest: Remove unused max_cpus argument from process_options
  cyclictest: Remove unused max_cpus argument from process_options
  rt-numa: Use CPU_SETSIZE as upper loop limit
  rt-numa: Remove used max_cpus argument from cpu_for_thread()
  cyclictest: Remove max cpus used verbose information
  cyclictest: Remove unecessary local variable
  rt-tests: Rename error.h to rt-error.h

 Makefile                            |   2 +-
 src/cyclictest/cyclictest.c         | 111 ++++++++++------------------
 src/cyclictest/rt_numa.h            |  96 ------------------------
 src/include/pip_stress.h            |   5 +-
 src/include/{error.h => rt-error.h} |   0
 src/include/rt-numa.h               |  13 +---
 src/lib/{error.c => rt-error.c}     |   2 +-
 src/lib/rt-numa.c                   |  42 +++++------
 src/lib/rt-utils.c                  |   3 +-
 src/oslat/oslat.c                   |   5 +-
 src/pi_tests/pi_stress.c            |   3 +-
 src/pmqtest/pmqtest.c               |   6 +-
 src/ptsematest/ptsematest.c         |   6 +-
 src/sched_deadline/cyclicdeadline.c |   6 +-
 src/signaltest/signaltest.c         |  76 +++++--------------
 src/sigwaittest/sigwaittest.c       |   2 +-
 src/svsematest/svsematest.c         |   3 +-
 17 files changed, 99 insertions(+), 282 deletions(-)
 delete mode 100644 src/cyclictest/rt_numa.h
 rename src/include/{error.h => rt-error.h} (100%)
 rename src/lib/{error.c => rt-error.c} (98%)