Commit eaf260ac authored by Joel Fernandes's avatar Joel Fernandes Committed by Steven Rostedt (VMware)

tracing: Treat recording comm for idle task as a success

Currently we stop recording comm for non-idle tasks when switching from/to idle
task since we treat that as a record failure. Fix that by treat recording of
comm for idle task as a success.

Link: http://lkml.kernel.org/r/20170706230023.17942-1-joelaf@google.com

Cc: kernel-team@android.com
Cc: Ingo Molnar <mingo@redhat.com>
Reported-by: default avatarMichael Sartain <mikesart@gmail.com>
Signed-off-by: default avatarJoel Fernandes <joelaf@google.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 99c621d7
...@@ -1916,7 +1916,11 @@ static int trace_save_cmdline(struct task_struct *tsk) ...@@ -1916,7 +1916,11 @@ static int trace_save_cmdline(struct task_struct *tsk)
{ {
unsigned pid, idx; unsigned pid, idx;
if (!tsk->pid || unlikely(tsk->pid > PID_MAX_DEFAULT)) /* treat recording of idle task as a success */
if (!tsk->pid)
return 1;
if (unlikely(tsk->pid > PID_MAX_DEFAULT))
return 0; return 0;
/* /*
......
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