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tracing: Test the 'Do not trace this pid' case in create event

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When creating a new event (via a module, kprobe, eprobe, etc), the
descriptors that are created must add flags for pid filtering if an
instance has pid filtering enabled, as the flags are used at the time the
event is executed to know if pid filtering should be done or not.

The "Only trace this pid" case was added, but a cut and paste error made
that case checked twice, instead of checking the "Trace all but this pid"
case.

Link: https://lore.kernel.org/all/202111280401.qC0z99JB-lkp@intel.com/

Fixes: 6cb206508b ("tracing: Check pid filtering when creating events")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware) 2021-11-27 16:45:26 -05:00
parent a55f224ff5
commit 27ff768fa2
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/trace_events.c
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@ -2693,7 +2693,7 @@ trace_create_new_event(struct trace_event_call *call,
lockdep_is_held(&event_mutex));
if (!trace_pid_list_first(pid_list, &first) ||
!trace_pid_list_first(pid_list, &first))
!trace_pid_list_first(no_pid_list, &first))
file->flags |= EVENT_FILE_FL_PID_FILTER;
file->event_call = call;