• Steven Rostedt's avatar
    tracing: Add infrastructure to allow set_event_pid to follow children · c37775d5
    Steven Rostedt authored
    Add the infrastructure needed to have the PIDs in set_event_pid to
    automatically add PIDs of the children of the tasks that have their PIDs in
    set_event_pid. This will also remove PIDs from set_event_pid when a task
    exits
    
    This is implemented by adding hooks into the fork and exit tracepoints. On
    fork, the PIDs are added to the list, and on exit, they are removed.
    
    Add a new option called event_fork that when set, PIDs in set_event_pid will
    automatically get their children PIDs added when they fork, as well as any
    task that exits will have its PID removed from set_event_pid.
    
    This works for instances as well.
    Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
    c37775d5
trace.h 43.8 KB