[bpf-next,0/3] add batched ops support for percpu array

Message

Pedro Tammela April 4, 2021, 8:02 p.m. UTC

This patchset introduces batched operations for the per-cpu variant of
the array map.

It also introduces a standard way to define per-cpu values via the
'BPF_PERCPU_TYPE()' macro, which handles the alignment transparently.
This was already implemented in the selftests and was merely refactored
out to libbpf, with some simplifications for reuse.

The tests were updated to reflect all the new changes.

Pedro Tammela (3):
  bpf: add batched ops support for percpu array
  libbpf: selftests: refactor 'BPF_PERCPU_TYPE()' and 'bpf_percpu()'
    macros
  bpf: selftests: update array map tests for per-cpu batched ops

 kernel/bpf/arraymap.c                         |   2 +
 tools/lib/bpf/bpf.h                           |  10 ++
 tools/testing/selftests/bpf/bpf_util.h        |   7 --
 .../bpf/map_tests/array_map_batch_ops.c       | 114 +++++++++++++-----
 .../bpf/map_tests/htab_map_batch_ops.c        |  48 ++++----
 .../selftests/bpf/prog_tests/map_init.c       |   5 +-
 tools/testing/selftests/bpf/test_maps.c       |  16 +--
 7 files changed, 133 insertions(+), 69 deletions(-)