Commits
Jerry Snitselaar committed 7e255d346c1
tracing: Export tracing clock functions Critical tracepoint hooks should never call anything that takes a lock, so they are unable to call getrawmonotonic() or ktime_get(). Export the rest of the tracing clock functions so can be used in tracepoint hooks. Background: We have a customer that adds their own module and registers a tracepoint hook to sched_wakeup. They were using ktime_get() for a time source, but it grabs a seq lock and caused a deadlock to occur. Link: http://lkml.kernel.org/r/1430406624-22609-1-git-send-email-jsnitsel@redhat.com Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>