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/sparc/kernel/process_32.c

@@ -14,6 +14,7 @@
 #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/stddef.h>

arch/sparc/kernel/process_64.c

@@ -14,6 +14,7 @@
 #include <linux/errno.h>
 #include <linux/export.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/fs.h>

arch/sparc/kernel/stacktrace.c

@@ -1,4 +1,5 @@
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/stacktrace.h>
 #include <linux/thread_info.h>
 #include <linux/ftrace.h>

arch/sparc/kernel/sun4m_irq.c

@@ -10,6 +10,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/sched/debug.h>
 
 #include <asm/timer.h>
 #include <asm/traps.h>

arch/sparc/kernel/sys_sparc_32.c

@@ -9,6 +9,7 @@
 #include <linux/types.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/debug.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
 #include <linux/file.h>

arch/sparc/kernel/sys_sparc_64.c

@@ -9,6 +9,7 @@
 #include <linux/types.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/debug.h>
 #include <linux/fs.h>
 #include <linux/file.h>
 #include <linux/mm.h>

arch/sparc/kernel/traps_32.c

@@ -10,6 +10,7 @@
  */
 
 #include <linux/sched.h>  /* for jiffies */
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/smp.h>

arch/sparc/kernel/traps_64.c

@@ -10,6 +10,7 @@
 
 #include <linux/extable.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/linkage.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>

arch/sparc/mm/fault_64.c

@@ -10,6 +10,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/ptrace.h>
 #include <linux/mman.h>
 #include <linux/signal.h>