Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Most of the kernel diffstat relates to a group of Intel P6 and KNC
  (Xeon-Phi Knights Corner) PMU driver fixes, neither of which is in
  heavy use, so we took the fixes.

  The rest is diverse smallish fixes to the tooling and kernel side."

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Remove unused variable in nhmex_rbox_alter_er()
  perf/x86: Enable overflow on Intel KNC with a custom knc_pmu_handle_irq()
  perf/x86: Remove cpuc->enable check on Intl KNC event enable/disable
  perf/x86: Make Intel KNC use full 40-bit width of counters
  perf/x86/uncore: Handle pci_read_config_dword() errors
  perf/x86: Remove P6 cpuc->enabled check
  perf/x86: Update/fix generic events on P6 PMU
  perf/x86: Fix P6 FP_ASSIST event constraint
  perf, cpu hotplug: Use cached value of smp_processor_id()
  perf, cpu hotplug: Run CPU_STARTING notifiers with irqs disabled
  x86/perf: Fix virtualization sanity check
  perf test: Fix exclude_guest parse events tests
  perf tools: do not flush maps on COMM for perf report
  perf help: Fix --help for builtins
  perf trace: Check if sample raw_data field is set
  perf trace: Validate syscall id before growing syscall table

1 files changed, 7 insertions, 3 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 2e902359aee5..6bfb2faa0b19 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -803,12 +803,16 @@ static inline void perf_event_task_tick(void)				{ }
 do {                                                                    \
         static struct notifier_block fn##_nb __cpuinitdata =            \
                 { .notifier_call = fn, .priority = CPU_PRI_PERF };      \
+        unsigned long cpu = smp_processor_id();                         \
+        unsigned long flags;                                            \
         fn(&fn##_nb, (unsigned long)CPU_UP_PREPARE,                     \
-                (void *)(unsigned long)smp_processor_id());             \
+                (void *)(unsigned long)cpu);                            \
+        local_irq_save(flags);                                          \
         fn(&fn##_nb, (unsigned long)CPU_STARTING,                       \
-                (void *)(unsigned long)smp_processor_id());             \
+                (void *)(unsigned long)cpu);                            \
+        local_irq_restore(flags);                                       \
         fn(&fn##_nb, (unsigned long)CPU_ONLINE,                         \
-                (void *)(unsigned long)smp_processor_id());             \
+                (void *)(unsigned long)cpu);                            \
         register_cpu_notifier(&fn##_nb);                                \
 } while (0)