tree 3e3ee23502cf2cc6d02baa1f7625b1ef16611eda
parent 328df4759c03e2c3e7429cc6cb0e180c38f32063
author Steven Rostedt (Red Hat) <rostedt@goodmis.org> 1363281225 -0400
committer Steven Rostedt <rostedt@goodmis.org> 1363322169 -0400

tracing: Add "uptime" trace clock that uses jiffies

Add a simple trace clock called "uptime" for those that are
interested in the uptime of the trace. It uses jiffies as that's
the safest method, as other uptime clocks grab seq locks, which could
cause a deadlock if taken from an event or function tracer.

Requested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>