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

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

Create a trivial placeholder <linux/sched/debug.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 <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/alpha/kernel/process.c

@@ -11,6 +11,7 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>

arch/alpha/kernel/traps.c

@@ -11,6 +11,7 @@
 #include <linux/jiffies.h>
 #include <linux/mm.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
 #include <linux/tty.h>
 #include <linux/delay.h>
 #include <linux/extable.h>

arch/arc/kernel/ctx_sw.c

@@ -16,6 +16,7 @@
 
 #include <asm/asm-offsets.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #ifdef CONFIG_ARC_PLAT_EZNPS
 #include <plat/ctop.h>
 #endif

arch/arc/kernel/stacktrace.c

@@ -28,6 +28,8 @@
 #include <linux/export.h>
 #include <linux/stacktrace.h>
 #include <linux/kallsyms.h>
+#include <linux/sched/debug.h>
+
 #include <asm/arcregs.h>
 #include <asm/unwind.h>
 #include <asm/switch_to.h>

arch/arc/kernel/troubleshoot.c

@@ -14,6 +14,7 @@
 #include <linux/proc_fs.h>
 #include <linux/file.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/debug.h>
 
 #include <asm/arcregs.h>
 #include <asm/irqflags.h>

arch/arm/kernel/process.c

@@ -12,6 +12,7 @@
 
 #include <linux/export.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>

arch/arm/kernel/stacktrace.c

 #include <linux/export.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/stacktrace.h>
 
 #include <asm/stacktrace.h>

arch/arm/kernel/traps.c

@@ -25,6 +25,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
 #include <linux/irq.h>
 
 #include <linux/atomic.h>

arch/arm/mm/alignment.c

@@ -14,6 +14,7 @@
 #include <linux/moduleparam.h>
 #include <linux/compiler.h>
 #include <linux/kernel.h>
+#include <linux/sched/debug.h>
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/proc_fs.h>

arch/arm/mm/fault.c

@@ -17,6 +17,7 @@
 #include <linux/uaccess.h>
 #include <linux/page-flags.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
 #include <linux/highmem.h>
 #include <linux/perf_event.h>
 

arch/arm/probes/kprobes/core.c

@@ -24,6 +24,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/stop_machine.h>
+#include <linux/sched/debug.h>
 #include <linux/stringify.h>
 #include <asm/traps.h>
 #include <asm/opcodes.h>

arch/arm64/kernel/probes/kprobes.c

@@ -22,6 +22,7 @@
 #include <linux/extable.h>
 #include <linux/slab.h>
 #include <linux/stop_machine.h>
+#include <linux/sched/debug.h>
 #include <linux/stringify.h>
 #include <asm/traps.h>
 #include <asm/ptrace.h>

arch/arm64/kernel/process.c

@@ -24,6 +24,7 @@
 #include <linux/efi.h>
 #include <linux/export.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>

arch/arm64/kernel/stacktrace.c

@@ -19,6 +19,7 @@
 #include <linux/export.h>
 #include <linux/ftrace.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/stacktrace.h>
 
 #include <asm/irq.h>

arch/arm64/kernel/traps.c

@@ -30,6 +30,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
 #include <linux/syscalls.h>
 
 #include <asm/atomic.h>

arch/arm64/mm/fault.c

@@ -27,6 +27,7 @@
 #include <linux/uaccess.h>
 #include <linux/page-flags.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
 #include <linux/highmem.h>
 #include <linux/perf_event.h>
 #include <linux/preempt.h>

arch/avr32/kernel/nmi_debug.c

@@ -9,6 +9,7 @@
 #include <linux/kdebug.h>
 #include <linux/notifier.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 
 #include <asm/irq.h>
 

arch/avr32/kernel/process.c

@@ -6,6 +6,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/fs.h>

arch/blackfin/kernel/dumpstack.c

@@ -10,6 +10,8 @@
 #include <linux/mm.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/sched/debug.h>
+
 #include <asm/trace.h>
 
 /*

arch/blackfin/kernel/early_printk.c

@@ -8,6 +8,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/sched/debug.h>
 #include <linux/init.h>
 #include <linux/serial_core.h>
 #include <linux/console.h>