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authorPeter Zijlstra <peterz@infradead.org>2010-09-10 22:32:53 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-09-20 13:17:56 -0700
commitf5f6687a47de60dc11007ee7a962cf366027d4ec (patch)
tree8ee4502d8a8fcde7b76f38bfb83e1a80742f0a1a /arch
parent444ba62c397038dc01eef78f9b754b6b8c2fd0a4 (diff)
x86, tsc: Fix a preemption leak in restore_sched_clock_state()
commit 55496c896b8a695140045099d4e0175cf09d4eae upstream. Doh, a real life genuine preemption leak.. This caused a suspend failure. Reported-bisected-and-tested-by-the-invaluable: Jeff Chua <jeff.chua.linux@gmail.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Nico Schottelius <nico-linux-20100709@schottelius.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Florian Pritz <flo@xssn.at> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Len Brown <lenb@kernel.org> sleep states LKML-Reference: <1284150773.402.122.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/tsc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 3a979337a115..aaefa71888cb 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -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)