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

We are going to split <linux/sched/task_stack.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/task_stack.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>

8 files changed, 9 insertions, 0 deletions

diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c
index e9fdb5203de5..c04917cad1bf 100644
--- a/kernel/events/callchain.c
+++ b/kernel/events/callchain.c
@@ -11,6 +11,8 @@
 
 #include <linux/perf_event.h>
 #include <linux/slab.h>
+#include <linux/sched/task_stack.h>
+
 #include "internal.h"
 
 struct callchain_cpus_entries {
diff --git a/kernel/exit.c b/kernel/exit.c
index e53408d156df..771c33fc9952 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -10,6 +10,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/stat.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 0af64d5d8b73..c87b6f03c710 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -19,6 +19,7 @@
 #include <linux/sched/numa_balancing.h>
 #include <linux/sched/stat.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/rtmutex.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 3caaaa04b92e..2984fb0f0257 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -47,6 +47,7 @@
 #include <linux/uio.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/uaccess.h>
 #include <asm/sections.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 6b7155ae5c33..4e2fec3f12a0 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -15,6 +15,7 @@
 #include <linux/sched/debug.h>
 #include <linux/sched/hotplug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/u64_stats_sync.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index e15185c28de5..65f61077ad50 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -18,6 +18,7 @@
 #include <linux/compat.h>
 #include <linux/coredump.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/seccomp.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 25d099fd80f7..e6d470a5f75a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -17,6 +17,7 @@
 #include <linux/sched/user.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/fs.h>
 #include <linux/tty.h>
 #include <linux/binfmts.h>
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 2a1abbaca10e..1d68b5b7ad41 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -2,6 +2,7 @@
  * Copyright (C) 2008 Steven Rostedt <srostedt@redhat.com>
  *
  */
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/kallsyms.h>
 #include <linux/seq_file.h>