[PATCH trace-cmd v2 0/3] trace-cmd filtering

[Gabriel Krisman Bertazi <krisman@suse.de>]

Hi Steve,

This implements my fix to restore single input filtering behavior
(bz217038) and adds support for global filters, as you requested.

On another topic, a current behavior that seems weird in my opinion is
that the following negates the second filter as well.

  "trace-cmd -i trace.dat.1 -v -F tp1 -i trace.dat.2 -F tp2"

I'd prefer that -v would apply only to the following -F. It'd allow me
to do:

  "trace-cmd -v -F 'mm_page_alloc' -i trace.dat.1 -i trace.dat.2 ... \
             -i trace.dat.10 -F 'mm_page_alloc:order==1'"

It obviously breaks the interface, so I didn't implement it here.  Would
like to hear your input, though.  We could have a new syntax:

  "trace-cmd ! -F tp1 -F tp2 ! -F tp3"

Thanks,

Gabriel Krisman Bertazi (3):
  trace-cmd report: Ensure filter is applied to single input file
  trace-cmd-report: Support global filters
  documentation: trace-cmd-report: Document filter scope

 .../trace-cmd/trace-cmd-report.1.txt          |  8 +++-
 tracecmd/trace-read.c                         | 45 ++++++++++++-------
 2 files changed, 34 insertions(+), 19 deletions(-)

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2.40.0