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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2021-11-27 16:45:26 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-11-27 16:50:43 -0500
commit27ff768fa21ca3286fcc87c3f38ac67d1a2cbe2d (patch)
treeaa47e315e72299e731c25cbd4f7c6bb14352f73c
parenta55f224ff5f238013de8762c4287117e47b86e22 (diff)
downloadlinux-27ff768fa21ca3286fcc87c3f38ac67d1a2cbe2d.tar.bz2
tracing: Test the 'Do not trace this pid' case in create event
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: 6cb206508b62 ("tracing: Check pid filtering when creating events") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-rw-r--r--kernel/trace/trace_events.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index f8965fd50d3b..92be9cb1d7d4 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -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;