perf/core: Remove perf CPU notifier code

All users converted to state machine callbacks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153335.115333381@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 21597dc..ca2dd86 100644 (file)
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -59,8 +59,6 @@ struct notifier_block;
  * CPU notifier priorities.
  */
 enum {
-       CPU_PRI_PERF            = 20,
-
        /* bring up workqueues before normal notifiers and down after */
        CPU_PRI_WORKQUEUE_UP    = 5,
        CPU_PRI_WORKQUEUE_DOWN  = -5,

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 9abeb69..ddd3dab 100644 (file)
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1285,41 +1285,6 @@ static inline void perf_restore_debug_store(void)                        { }
 
 #define perf_output_put(handle, x) perf_output_copy((handle), &(x), sizeof(x))
 
-/*
- * This has to have a higher priority than migration_notifier in sched/core.c.
- */
-#define perf_cpu_notifier(fn)                                          \
-do {                                                                   \
-       static struct notifier_block fn##_nb =                          \
-               { .notifier_call = fn, .priority = CPU_PRI_PERF };      \
-       unsigned long cpu = smp_processor_id();                         \
-       unsigned long flags;                                            \
-                                                                       \
-       cpu_notifier_register_begin();                                  \
-       fn(&fn##_nb, (unsigned long)CPU_UP_PREPARE,                     \
-               (void *)(unsigned long)cpu);                            \
-       local_irq_save(flags);                                          \
-       fn(&fn##_nb, (unsigned long)CPU_STARTING,                       \
-               (void *)(unsigned long)cpu);                            \
-       local_irq_restore(flags);                                       \
-       fn(&fn##_nb, (unsigned long)CPU_ONLINE,                         \
-               (void *)(unsigned long)cpu);                            \
-       __register_cpu_notifier(&fn##_nb);                              \
-       cpu_notifier_register_done();                                   \
-} while (0)
-
-/*
- * Bare-bones version of perf_cpu_notifier(), which doesn't invoke the
- * callback for already online CPUs.
- */
-#define __perf_cpu_notifier(fn)                                                \
-do {                                                                   \
-       static struct notifier_block fn##_nb =                          \
-               { .notifier_call = fn, .priority = CPU_PRI_PERF };      \
-                                                                       \
-       __register_cpu_notifier(&fn##_nb);                              \
-} while (0)
-
 struct perf_pmu_events_attr {
        struct device_attribute attr;
        u64 id;