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[0/4] tracing/histogram: Division optimization and expression kselftests

Message ID 20211029183339.3216491-1-kaleshsingh@google.com (mailing list archive)
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Series tracing/histogram: Division optimization and expression kselftests | expand

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Kalesh Singh Oct. 29, 2021, 6:33 p.m. UTC 
This series adds optimiztion for division by constants and updates the
histogram trigger expression kselftests and documentation.

It is dependent on the series at [1] and the fix at [2]; and can be applied
on top of those after dropping the patch 7 in [1].

[1] https://lore.kernel.org/r/20211025200852.3002369-1-kaleshsingh@google.com/
[2] https://lore.kernel.org/r/20211028170548.2597449-1-kaleshsingh@google.com/

Kalesh Singh (4):
  tracing/histogram: Optimize division by constants (v2)
  tracing/histogram: Update division by 0 documentation (v1)
  tracing/histogram: Document hist trigger variables (v3)
  tracing/selftests: Add tests for hist trigger expression parsing (v7)

 Documentation/trace/histogram.rst             |   3 +-
 kernel/trace/trace.c                          |  11 ++
 kernel/trace/trace_events_hist.c              | 117 +++++++++++++++++-
 .../trigger/trigger-hist-expressions.tc       |  63 ++++++++++
 4 files changed, 192 insertions(+), 2 deletions(-)
 create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc