sched/headers: Standardize kernel/sched/sched.h header dependencies

kernel/sched/sched.h is a weird mix of ad-hoc headers included
in the middle of the header.

Two of them rely on being included in the middle of kernel/sched/sched.h,
due to definitions they require:

 - "stat.h" needs the rq definitions.
 - "autogroup.h" needs the task_group definition.

Move the inclusion of these two files out of kernel/sched/sched.h, and
include them in all files that require them.

Move of the rest of the header dependencies to the top of the
kernel/sched/sched.h file.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/sched/build_policy.c b/kernel/sched/build_policy.c
index 6bb384ddcfab..9a169b2f97e6 100644
--- a/kernel/sched/build_policy.c
+++ b/kernel/sched/build_policy.c
@@ -13,6 +13,9 @@
  */
 
 #include "sched.h"
+
+#include "autogroup.h"
+#include "stats.h"
 #include "pelt.h"
 
 #include "idle.c"