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 <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>

arch/tile/include/asm/stack.h

@@ -17,6 +17,8 @@
 
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
+
 #include <asm/backtrace.h>
 #include <asm/page.h>
 #include <hv/hypervisor.h>

arch/tile/kernel/process.c

@@ -13,6 +13,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/preempt.h>
 #include <linux/module.h>
 #include <linux/fs.h>

arch/tile/kernel/signal.c

@@ -14,6 +14,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>

arch/tile/kernel/stack.c

@@ -13,6 +13,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/kprobes.h>
 #include <linux/module.h>

arch/tile/kernel/traps.c

@@ -13,6 +13,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>

arch/tile/kernel/unaligned.c

@@ -17,6 +17,7 @@
 #include <linux/smp.h>
 #include <linux/ptrace.h>
 #include <linux/slab.h>
+#include <linux/sched/debug.h>
 #include <linux/thread_info.h>
 #include <linux/uaccess.h>
 #include <linux/mman.h>

arch/tile/mm/fault.c

@@ -16,6 +16,7 @@
 
 #include <linux/signal.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>