{
pid_t pid;
- pid = current->pid;
+ pid = task_tgid_nr(current);
lib_ring_buffer_align_ctx(ctx, ltt_alignof(pid));
chan->ops->event_write(ctx, &pid, sizeof(pid));
}
int lttng_add_pid_to_ctx(struct lttng_ctx **ctx)
{
struct lttng_ctx_field *field;
- int ret;
field = lttng_append_context(ctx);
if (!field)
- return ret;
+ return -ENOMEM;
+ if (lttng_find_context(*ctx, "pid")) {
+ lttng_remove_context_field(ctx, field);
+ return -EEXIST;
+ }
field->event_field.name = "pid";
field->event_field.type.atype = atype_integer;
field->event_field.type.u.basic.integer.size = sizeof(pid_t) * CHAR_BIT;
MODULE_LICENSE("GPL and additional rights");
MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("Linux Trace Toolkit Perf Support");
+MODULE_DESCRIPTION("Linux Trace Toolkit PID Context");