diff options
Diffstat (limited to 'kernel/trace/trace_events.c')
| -rw-r--r-- | kernel/trace/trace_events.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index b5e514c4dada..a11e6d9a3841 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -502,57 +502,6 @@ static void ftrace_clear_events(struct trace_array *tr) /* Shouldn't this be in a header? */ extern int pid_max; -/* Returns true if found in filter */ -bool -trace_find_filtered_pid(struct trace_pid_list *filtered_pids, pid_t search_pid) -{ - /* - * If pid_max changed after filtered_pids was created, we - * by default ignore all pids greater than the previous pid_max. - */ - if (search_pid >= filtered_pids->pid_max) - return false; - - return test_bit(search_pid, filtered_pids->pids); -} - -bool -trace_ignore_this_task(struct trace_pid_list *filtered_pids, struct task_struct *task) -{ - /* - * Return false, because if filtered_pids does not exist, - * all pids are good to trace. - */ - if (!filtered_pids) - return false; - - return !trace_find_filtered_pid(filtered_pids, task->pid); -} - -void trace_filter_add_remove_task(struct trace_pid_list *pid_list, - struct task_struct *self, - struct task_struct *task) -{ - if (!pid_list) - return; - - /* For forks, we only add if the forking task is listed */ - if (self) { - if (!trace_find_filtered_pid(pid_list, self->pid)) - return; - } - - /* Sorry, but we don't support pid_max changing after setting */ - if (task->pid >= pid_list->pid_max) - return; - - /* "self" is set for forks, and NULL for exits */ - if (self) - set_bit(task->pid, pid_list->pids); - else - clear_bit(task->pid, pid_list->pids); -} - static void event_filter_pid_sched_process_exit(void *data, struct task_struct *task) { |