linux-kernel - [PATCH 13/48] sched/headers: Prepare for new header dependencies before moving code to <linux/sched/cpufreq.h>

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Date:   Wed,  8 Feb 2017 19:39:15 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Galbraith <efault@....de>,
        Oleg Nesterov <oleg@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 13/48] sched/headers: Prepare for new header dependencies before moving code to <linux/sched/cpufreq.h>

We are going to split <linux/sched/cpufreq.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/cpufreq.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.

Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mike Galbraith <efault@....de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 drivers/cpufreq/cpufreq_governor.c | 1 -
 drivers/cpufreq/cpufreq_governor.h | 1 +
 drivers/cpufreq/cpufreq_ondemand.c | 1 +
 drivers/cpufreq/intel_pstate.c     | 2 +-
 include/linux/sched/cpufreq.h      | 6 ++++++
 kernel/sched/sched.h               | 1 +
 6 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 631bd2c86c5e..47e24b5384b3 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -18,7 +18,6 @@
 
 #include <linux/export.h>
 #include <linux/kernel_stat.h>
-#include <linux/sched.h>
 #include <linux/slab.h>
 
 #include "cpufreq_governor.h"
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index f5717ca070cc..0236ec2cd654 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -20,6 +20,7 @@
 #include <linux/atomic.h>
 #include <linux/irq_work.h>
 #include <linux/cpufreq.h>
+#include <linux/sched/cpufreq.h>
 #include <linux/kernel_stat.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 4a017e895296..3937acf7e026 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -16,6 +16,7 @@
 #include <linux/percpu-defs.h>
 #include <linux/slab.h>
 #include <linux/tick.h>
+#include <linux/sched/cpufreq.h>
 
 #include "cpufreq_ondemand.h"
 
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index a54d65aa776d..097a9d9aa69f 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -19,7 +19,7 @@
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
 #include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/cpufreq.h>
 #include <linux/list.h>
 #include <linux/cpu.h>
 #include <linux/cpufreq.h>
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
new file mode 100644
index 000000000000..07ed9664fa20
--- /dev/null
+++ b/include/linux/sched/cpufreq.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_CPUFREQ_H
+#define _LINUX_SCHED_CPUFREQ_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_CPUFREQ_H */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 641249471952..7dfeb14fa43c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -7,6 +7,7 @@
 #include <linux/sched/wake_q.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/cpufreq.h>
 #include <linux/u64_stats_sync.h>
 #include <linux/sched/deadline.h>
 #include <linux/kernel_stat.h>
-- 
2.7.4