Merge branch 'sched/fast-headers' into sched/core

Merge the scheduler build speedup of the fast-headers tree.

Cumulative scheduler (kernel/sched/) build time speedup on a
Linux distribution's config, which enables all scheduler features,
compared to the vanilla kernel:

      _____________________________________________________________________________
     |
     |  Vanilla kernel (v5.13-rc7):
     |_____________________________________________________________________________
     |
     |  Performance counter stats for 'make -j96 kernel/sched/' (3 runs):
     |
     |   126,975,564,374      instructions              #    1.45  insn per cycle           ( +-  0.00% )
     |    87,637,847,671      cycles                    #    3.959 GHz                      ( +-  0.30% )
     |         22,136.96 msec cpu-clock                 #    7.499 CPUs utilized            ( +-  0.29% )
     |
     |            2.9520 +- 0.0169 seconds time elapsed  ( +-  0.57% )
     |_____________________________________________________________________________
     |
     |  Patched kernel:
     |_____________________________________________________________________________
     |
     | Performance counter stats for 'make -j96 kernel/sched/' (3 runs):
     |
     |    50,420,496,914      instructions              #    1.47  insn per cycle           ( +-  0.00% )
     |    34,234,322,038      cycles                    #    3.946 GHz                      ( +-  0.31% )
     |          8,675.81 msec cpu-clock                 #    3.053 CPUs utilized            ( +-  0.45% )
     |
     |            2.8420 +- 0.0181 seconds time elapsed  ( +-  0.64% )
     |_____________________________________________________________________________

    Summary:

      - CPU time used to build the scheduler dropped by -60.9%, a reduction
        from 22.1 clock-seconds to 8.7 clock-seconds.

      - Wall-clock time to build the scheduler dropped by -3.9%, a reduction
        from 2.95 seconds to 2.84 seconds.

Signed-off-by: Ingo Molnar <[email protected]>

Author: Ingo Molnar

arch/arm64/include/asm/paravirt_api_clock.h

@@ -0,0 +1 @@
+#include <asm/paravirt.h>

arch/x86/include/asm/paravirt_api_clock.h

@@ -0,0 +1 @@
+#include <asm/paravirt.h>

include/linux/cgroup_api.h

@@ -0,0 +1 @@
+#include <linux/cgroup.h>

include/linux/cpumask_api.h

@@ -0,0 +1 @@
+#include <linux/cpumask.h>

include/linux/fs_api.h

@@ -0,0 +1 @@
+#include <linux/fs.h>

include/linux/gfp_api.h

@@ -0,0 +1 @@
+#include <linux/gfp.h>

include/linux/hashtable_api.h

@@ -0,0 +1 @@
+#include <linux/hashtable.h>

include/linux/hrtimer_api.h

@@ -0,0 +1 @@
+#include <linux/hrtimer.h>

include/linux/kobject_api.h

@@ -0,0 +1 @@
+#include <linux/kobject.h>

include/linux/kref_api.h

@@ -0,0 +1 @@
+#include <linux/kref.h>