Commit 5ee5e97e authored Sep 10, 2010 by Peter Zijlstra Committed by Linus Torvalds Sep 10, 2010

x86, tsc: Fix a preemption leak in restore_sched_clock_state()



A real life genuine preemption leak..

Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 9aea5a65

arch/x86/kernel/tsc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -655,7 +655,7 @@ void restore_sched_clock_state(void)

		local_irq_save(flags);

		get_cpu_var(cyc2ns_offset) = 0;
		__get_cpu_var(cyc2ns_offset) = 0;
		offset = cyc2ns_suspend - sched_clock();

		for_each_possible_cpu(cpu)