[PATCH v3 0/5] trace-cmd: Improve multi-instance support

[Howard Cochran <hcochran@kernelspring.com>]

NOTE: The previous two versions of this patch set were distributed off-list.

v3 changes:
    * Improved clarification of options in documentation of
      trace-cmd reset and added examples.

v2 changes:
    * Rebased this patch series on Steve's simplification of
      first_instance logic.

Improve the completeness and consistency of support for multiple
buffer instances in the extract, snapshot, stat, start, stop,
reset, and restart sub-commands.

For the commands that lacked it, added support for -B and -t options,
consistent with the existing behavior of stop, reset, and restart.
That is, including a -B instance-name option will cause these commands to
exclude the top buffer instance unless -t is also provided.

Exception: trace-cmd start retains its existing behavior regarding the
top instance, consistent with trace-cmd record.

For all of these sub-commands except start, add a new -a option, which
causes it to operate on all existing instances.  As with -B, -a will
exclude the top instance unless -t is also given.

Updated documentation accordingly.


Howard Cochran (5):
  trace-cmd extract: Add -B and -t for multiple instances
  trace-cmd extract: Add -a option for all instances
  trace-cmd stop, reset, restart: Add -a for all instances
  trace-cmd snapshot: Fully support multiple instances
  trace-cmd stat: Support -a for all buffers. Update docs.

 Documentation/trace-cmd-extract.1.txt  |  16 ++++
 Documentation/trace-cmd-reset.1.txt    |  57 ++++++++++--
 Documentation/trace-cmd-snapshot.1.txt |  16 +++-
 Documentation/trace-cmd-stat.1.txt     |  19 ++++
 Documentation/trace-cmd-stop.1.txt     |  13 ++-
 trace-cmd.c                            |   2 +-
 trace-local.h                          |   6 +-
 trace-record.c                         | 160 ++++++++++++++++++++++++++++-----
 trace-snapshot.c                       |  90 ++++++++++---------
 trace-stat.c                           |  15 +++-
 trace-usage.c                          |  42 ++++++---
 11 files changed, 341 insertions(+), 95 deletions(-)

-- 
1.9.1