tree 78d2d790ed4e20c179d2f61f2ed50ecbb6d5a451
parent 7a895f53cda9d9362c30144e42c124a1ae996b9e
author Frederic Weisbecker <fweisbec@gmail.com> 1225454240 +0100
committer Ingo Molnar <mingo@elte.hu> 1225815242 +0100

tracing/fastboot: Enable boot tracing only during initcalls

Impact: modify boot tracer

We used to disable the initcall tracing at a specified time (IE: end
of builtin initcalls). But we don't need it anymore. It will be
stopped when initcalls are finished.

However we want two things:

_Start this tracing only after pre-smp initcalls are finished.

_Since we are planning to trace sched_switches at the same time, we
want to enable them only during the initcall execution.

For this purpose, this patch introduce two functions to enable/disable
the sched_switch tracing during boot.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>