tracing/x86: Don't use mcount in pvclock.c
When using a paravirt clock, pvclock.c can be used by sched_clock(), which in turn is used by the tracing mechanism for timestamps, which leads to infinite recursion. Disable mcount/tracing for pvclock.o. Cc: stable@kernel.org Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> LKML-Reference: <4C9A9A3F.4040201@goop.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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