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>

3 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 698d51a0eea3..c8240a12c42d 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -3,6 +3,8 @@
 
 #include <linux/user.h>
 #include <linux/bug.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/elf.h>
 #include <uapi/linux/elfcore.h>
 
diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h
index a5f98d53d732..9b7dd59fe28d 100644
--- a/include/linux/perf_regs.h
+++ b/include/linux/perf_regs.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_PERF_REGS_H
 #define _LINUX_PERF_REGS_H
 
+#include <linux/sched/task_stack.h>
+
 struct perf_regs {
 	__u64		abi;
 	struct pt_regs	*regs;
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
new file mode 100644
index 000000000000..933cd49824c2
--- /dev/null
+++ b/include/linux/sched/task_stack.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_TASK_STACK_H
+#define _LINUX_SCHED_TASK_STACK_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_TASK_STACK_H */