Commit 9ecd4e16 authored Sep 22, 2010 by Jeremy Fitzhardinge Committed by Steven Rostedt Sep 22, 2010

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: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
LKML-Reference: <4C9A9A3F.4040201@goop.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

parent c79bd892

arch/x86/kernel/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,7 @@ ifdef CONFIG_FUNCTION_TRACER
		CFLAGS_REMOVE_tsc.o = -pg
		CFLAGS_REMOVE_rtc.o = -pg
		CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
		CFLAGS_REMOVE_pvclock.o = -pg
		CFLAGS_REMOVE_ftrace.o = -pg
		CFLAGS_REMOVE_early_printk.o = -pg
		endif