Fix: Use MAX_RT_PRIO offset in sched_wakeup_template

All other sched_* events with prio fields offset the task_struct's
prio value by subtracting MAX_RT_PRIO. This way the value corresponds
to that given by the kernel's task_prio function, and thus with the
prio context field.

This adds the same offset to sched_wakeup, sched_wakeup_new, and
sched_waking, via the sched_wakeup_template event class. This way
their value is comparable to other sched_* events, and the prio
context.

Signed-off-by: Antoine Busque <abusque@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/instrumentation/events/lttng-module/sched.h b/instrumentation/events/lttng-module/sched.h
index f23db75b8bcc0c0ae9e4a68225405d5b061aade8..b6a13ce435c6637f81d1b1e8cf22376ac2944124 100644 (file)
--- a/instrumentation/events/lttng-module/sched.h
+++ b/instrumentation/events/lttng-module/sched.h
@@ -155,7 +155,7 @@ LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
        TP_FIELDS(
                ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
                ctf_integer(pid_t, tid, p->pid)
-               ctf_integer(int, prio, p->prio)
+               ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
                ctf_integer(int, target_cpu, task_cpu(p))
        )
 )
@@ -175,7 +175,7 @@ LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
        TP_FIELDS(
                ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
                ctf_integer(pid_t, tid, p->pid)
-               ctf_integer(int, prio, p->prio)
+               ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
                ctf_integer(int, success, success)
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
                ctf_integer(int, target_cpu, task_cpu(p))