[v2,0/6] trace-cmd reset fixes

Message

Tzvetomir Stoyanov March 8, 2019, 1:43 p.m. UTC

[
 V2 changes:
   - Fixed subjects of the patches.
   - Refactored add_event_pid() and reset_event_pid(), 
     as Steven Rostedt suggested.
]

This patch series fixes "trace-cmd reset" command to 
restore default values of various ftrace configurations:
tracng_on, trace_clock, set_event_pid and tracing_max_latency.
It also fixes a segfault when the command is executed with 
"-a -d" options.

Tzvetomir Stoyanov (6):
  trace-cmd: Fix "trace-cmd reset" command to restore "tracng_on"
  trace-cmd: Fix "trace-cmd reset -a -d" segfault
  trace-cmd: Fix "trace-cmd reset" command to restore default clock
  trace-cmd: Reafctored add_event_pid()to utilize write_instance_file()
  trace-cmd: Fix "trace-cmd reset" command to restore the default value
    of set_event_pid
  trace-cmd: Fix "trace-cmd reset" command to restore the default value
    of tracing_max_latency

 tracecmd/trace-record.c | 123 ++++++++++++++++++++++++----------------
 1 file changed, 73 insertions(+), 50 deletions(-)