Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull sched.h split-up from Ingo Molnar:
 "The point of these changes is to significantly reduce the
  <linux/sched.h> header footprint, to speed up the kernel build and to
  have a cleaner header structure.

  After these changes the new <linux/sched.h>'s typical preprocessed
  size goes down from a previous ~0.68 MB (~22K lines) to ~0.45 MB (~15K
  lines), which is around 40% faster to build on typical configs.

  Not much changed from the last version (-v2) posted three weeks ago: I
  eliminated quirks, backmerged fixes plus I rebased it to an upstream
  SHA1 from yesterday that includes most changes queued up in -next plus
  all sched.h changes that were pending from Andrew.

  I've re-tested the series both on x86 and on cross-arch defconfigs,
  and did a bisectability test at a number of random points.

  I tried to test as many build configurations as possible, but some
  build breakage is probably still left - but it should be mostly
  limited to architectures that have no cross-compiler binaries
  available on kernel.org, and non-default configurations"

* 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (146 commits)
  sched/headers: Clean up <linux/sched.h>
  sched/headers: Remove #ifdefs from <linux/sched.h>
  sched/headers: Remove the <linux/topology.h> include from <linux/sched.h>
  sched/headers, hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h>
  sched/headers, x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h>
  sched/headers, timers: Remove the <linux/sysctl.h> include from <linux/timer.h>
  sched/headers: Remove <linux/magic.h> from <linux/sched/task_stack.h>
  sched/headers: Remove <linux/sched.h> from <linux/sched/init.h>
  sched/core: Remove unused prefetch_stack()
  sched/headers: Remove <linux/rculist.h> from <linux/sched.h>
  sched/headers: Remove the 'init_pid_ns' prototype from <linux/sched.h>
  sched/headers: Remove <linux/signal.h> from <linux/sched.h>
  sched/headers: Remove <linux/rwsem.h> from <linux/sched.h>
  sched/headers: Remove the runqueue_is_locked() prototype
  sched/headers: Remove <linux/sched.h> from <linux/sched/hotplug.h>
  sched/headers: Remove <linux/sched.h> from <linux/sched/debug.h>
  sched/headers: Remove <linux/sched.h> from <linux/sched/nohz.h>
  sched/headers: Remove <linux/sched.h> from <linux/sched/stat.h>
  sched/headers: Remove the <linux/gfp.h> include from <linux/sched.h>
  sched/headers: Remove <linux/rtmutex.h> from <linux/sched.h>
  ...

20 files changed, 37 insertions, 6 deletions

diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 4e332244ea75..547c73478459 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,8 +1,11 @@
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <asm/processor.h>
 #include <asm/fpu.h>
 #include <asm/traps.h>
+#include <asm/ptrace.h>
 
 int init_fpu(struct task_struct *tsk)
 {
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
index 98bbaa447c93..352f894bece1 100644
--- a/arch/sh/kernel/cpu/sh2a/fpu.c
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -9,7 +9,7 @@
  *
  * FIXME! These routines can be optimized in big endian case.
  */
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <asm/processor.h>
 #include <asm/io.h>
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index 69ab4d3c8d41..95fd2dcb83da 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -10,8 +10,7 @@
  *
  * FIXME! These routines have not been tested for big endian case.
  */
-#include <linux/sched.h>
-#include <linux/signal.h>
+#include <linux/sched/signal.h>
 #include <linux/io.h>
 #include <cpu/fpu.h>
 #include <asm/processor.h>
diff --git a/arch/sh/kernel/disassemble.c b/arch/sh/kernel/disassemble.c
index 64d5d8dded7c..015fee58014b 100644
--- a/arch/sh/kernel/disassemble.c
+++ b/arch/sh/kernel/disassemble.c
@@ -12,6 +12,8 @@
 #include <linux/string.h>
 #include <linux/uaccess.h>
 
+#include <asm/ptrace.h>
+
 /*
  * Format of an instruction in memory.
  */
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index 8dfe645bcc4b..b564b1eae4ae 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -11,6 +11,8 @@
 #include <linux/kallsyms.h>
 #include <linux/ftrace.h>
 #include <linux/debug_locks.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kdebug.h>
 #include <linux/export.h>
 #include <linux/uaccess.h>
diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
index 2197fc584186..afe965712a69 100644
--- a/arch/sh/kernel/hw_breakpoint.c
+++ b/arch/sh/kernel/hw_breakpoint.c
@@ -11,6 +11,7 @@
  */
 #include <linux/init.h>
 #include <linux/perf_event.h>
+#include <linux/sched/signal.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/percpu.h>
 #include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index adad46e41a1d..4f04c6638a4d 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -14,6 +14,8 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/cacheflush.h>
 #include <asm/traps.h>
 
diff --git a/arch/sh/kernel/nmi_debug.c b/arch/sh/kernel/nmi_debug.c
index ff0abbd1e652..730d928f0d12 100644
--- a/arch/sh/kernel/nmi_debug.c
+++ b/arch/sh/kernel/nmi_debug.c
@@ -9,6 +9,7 @@
 #include <linux/kdebug.h>
 #include <linux/notifier.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/hardirq.h>
 
 enum nmi_action {
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 53bc6c4c84ec..f8a695a223dd 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -1,10 +1,12 @@
 #include <linux/mm.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
 #include <linux/export.h>
 #include <linux/stackprotector.h>
 #include <asm/fpu.h>
+#include <asm/ptrace.h>
 
 struct kmem_cache *task_xstate_cachep = NULL;
 unsigned int xstate_size;
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 51741850a715..2c7bdf8cb934 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -15,6 +15,9 @@
  */
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/elfcore.h>
 #include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index e0b271bffd6a..ee2abe96f9f3 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -25,6 +25,9 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <asm/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/pgtable.h>
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 1aabfd356b35..5fc3ff606210 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -12,6 +12,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index c49d0d05a215..1e0656d9e7af 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -18,6 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/bitops.h>
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 5128d3001ee5..08bce11badc6 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -9,6 +9,7 @@
  *
  */
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index edc4769b047e..c483422ea4d0 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -20,7 +20,8 @@
 #include <linux/module.h>
 #include <linux/cpu.h>
 #include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
+#include <linux/sched/hotplug.h>
 #include <linux/atomic.h>
 #include <linux/clockchips.h>
 #include <asm/processor.h>
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index bf989e063a0c..7a73d2763e1b 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -10,6 +10,7 @@
  * for more details.
  */
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/stacktrace.h>
 #include <linux/thread_info.h>
 #include <linux/module.h>
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c
index d5287d76809c..a2e1231a90a3 100644
--- a/arch/sh/kernel/sys_sh32.c
+++ b/arch/sh/kernel/sys_sh32.c
@@ -1,5 +1,6 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/sem.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 9513fa7840aa..b32d1c3a4655 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -4,10 +4,14 @@
 #include <linux/kdebug.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/uaccess.h>
 #include <linux/hardirq.h>
 #include <linux/kernel.h>
 #include <linux/kexec.h>
+#include <linux/sched/signal.h>
+
 #include <linux/extable.h>
 #include <linux/module.h>	/* print_modules */
 #include <asm/unwinder.h>
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index ff639342a8be..57cff00cad17 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -25,6 +25,8 @@
 #include <linux/sysfs.h>
 #include <linux/uaccess.h>
 #include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/alignment.h>
 #include <asm/fpu.h>
 #include <asm/kprobes.h>
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index 00835edb6e20..014fb08cf133 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -10,6 +10,7 @@
  * for more details.
  */
 #include <linux/sched.h>
+#include <linux/sched/debug.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/errno.h>