sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h>

We are going to split <linux/sched/loadavg.h> out of <linux/sched.h>, which
will have to be picked up from a couple of .c files.

Create a trivial placeholder <linux/sched/topology.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <[e-mail]>
Cc: Mike Galbraith <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: [e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

arch/m68k/kernel/time.c

···
 #include <linux/export.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
 #include <linux/string.h>

arch/microblaze/kernel/heartbeat.c

···
  */
 
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/io.h>
 
 #include <asm/setup.h>

arch/powerpc/platforms/cell/cpufreq_spudemand.c

···
 
 #include <linux/cpufreq.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/module.h>
 #include <linux/timer.h>
 #include <linux/workqueue.h>

arch/powerpc/platforms/cell/spufs/sched.c

···
 
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/sched/rt.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>

arch/s390/appldata/appldata_os.c

···
 #include <linux/kernel_stat.h>
 #include <linux/netdevice.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <asm/appldata.h>
 #include <asm/smp.h>
 

arch/sh/drivers/heartbeat.c

···
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/timer.h>
 #include <linux/io.h>
 #include <linux/slab.h>

arch/sparc/kernel/led.c

···
 #include <linux/jiffies.h>
 #include <linux/timer.h>
 #include <linux/uaccess.h>
+#include <linux/sched/loadavg.h>
 
 #include <asm/auxio.h>
 

drivers/cpuidle/governors/menu.c

···
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/math64.h>
 #include <linux/cpu.h>
 

drivers/leds/trigger/ledtrig-heartbeat.c

···
 #include <linux/slab.h>
 #include <linux/timer.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/leds.h>
 #include <linux/reboot.h>
 #include <linux/suspend.h>

drivers/platform/x86/intel_ips.c

···
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/tick.h>

fs/proc/loadavg.c

···
 #include <linux/pid_namespace.h>
 #include <linux/proc_fs.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/seq_file.h>
 #include <linux/seqlock.h>
 #include <linux/time.h>

include/linux/sched/loadavg.h

···
+#ifndef _LINUX_SCHED_LOADAVG_H
+#define _LINUX_SCHED_LOADAVG_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_LOADAVG_H */

kernel/debug/kdb/kdb_main.c

···
 #include <linux/kmsg_dump.h>
 #include <linux/reboot.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/sysrq.h>
 #include <linux/smp.h>
 #include <linux/utsname.h>

kernel/sched/core.c

···
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
 #include <uapi/linux/sched/types.h>
+#include <linux/sched/loadavg.h>
 #include <linux/cpuset.h>
 #include <linux/delayacct.h>
 #include <linux/init_task.h>

kernel/sched/loadavg.c

···
  */
 
 #include <linux/export.h>
+#include <linux/sched/loadavg.h>
 
 #include "sched.h"
 

kernel/sys.c

···
 #include <linux/binfmts.h>
 
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/rcupdate.h>
 #include <linux/uidgid.h>
 #include <linux/cred.h>

kernel/time/timekeeping.c

···
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/syscore_ops.h>
 #include <linux/clocksource.h>
 #include <linux/jiffies.h>

net/sched/em_meta.c

···
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/loadavg.h>
 #include <linux/string.h>
 #include <linux/skbuff.h>
 #include <linux/random.h>