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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 10:05:37 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 10:05:37 -0700 |
| commit | 2849a3a945d0e440fa245c47c49c80ef1cc103c3 (patch) | |
| tree | 616868130f4b8a063cfa1c138135c10247a4da0e /arch/x86/kernel/cpu/perf_event_intel_ds.c | |
| parent | 417c765af914106f5e76c4e0181dd555fe6a89a0 (diff) | |
| parent | 8bb9660418e05bb1845ac1a2428444d78e322cc7 (diff) | |
Merge 3.9-rc4 into usb-next
This picks up the fixes we had for USB in 3.9-rc4
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event_intel_ds.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_intel_ds.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c index 0e9bdd3cb01..b05a575d56f 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_ds.c +++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c @@ -732,8 +732,10 @@ void intel_ds_init(void) void perf_restore_debug_store(void) { + struct debug_store *ds = __this_cpu_read(cpu_hw_events.ds); + if (!x86_pmu.bts && !x86_pmu.pebs) return; - init_debug_store_on_cpu(smp_processor_id()); + wrmsrl(MSR_IA32_DS_AREA, (unsigned long)ds); } |