Tracepoints for deadline scheduler

Deadline tasks behave differently of other tasks because deadline task's also depend on their period, deadline and runtime.

Hence, the well known sched:sched_wakeup and sched:sched_switch tracepoints are not always enough to precisely explain the behavior of a deadline task with respect to the task's period, deadline and runtime consumption.

This patch series implements tracepoints for the following deadline scheduler points of interest:

- sched:sched_deadline_replenish: Informs the periodic runtime replenishment of a deadline task.

- sched:sched_deadline_yield: Informs that a deadline task called sched_yield(), and will wait for the next period.

- sched:sched_deadline_throttle: Informs that a task consumed all its available runtime and was throttled.

- sched:sched_deadline_block: Informs that a deadline task went to sleep waiting to be awakened by another task.

Changes since v1:
Cleanup in the sched:sched_deadline_yield tracepoint Fix compilantion warning on Intel 32 bits

Daniel Bristot de Oliveira (2):
sched: Move deadline container_of() helper functions into sched.h sched/deadline: Tracepoints for deadline scheduler

Steven Rostedt (Red Hat) (1):
tracing: Add __print_ns_to_secs() and __print_ns_without_secs()
helpers

 include/trace/events/sched.h | 88 ++++++++++++++++++++++++++++++++++++++++++++
 include/trace/trace_events.h | 25 +++++++++++++
 kernel/sched/deadline.c      | 26 ++++---------
 kernel/sched/sched.h         | 18 +++++++++
 4 files changed, 139 insertions(+), 18 deletions(-)

2.5.0