linux-kernel - [PATCH 27/48] sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nohz.h>

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Date:   Wed,  8 Feb 2017 19:39:29 +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 27/48] sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nohz.h>

We are going to split <linux/sched/nohz.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/nohz.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>
---
 include/linux/sched/nohz.h | 6 ++++++
 kernel/sched/sched.h       | 1 +
 kernel/time/hrtimer.c      | 1 +
 kernel/time/tick-sched.c   | 1 +
 kernel/time/timer.c        | 1 +
 5 files changed, 10 insertions(+)

diff --git a/include/linux/sched/nohz.h b/include/linux/sched/nohz.h
new file mode 100644
index 000000000000..fe6caf0dab10
--- /dev/null
+++ b/include/linux/sched/nohz.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_NOHZ_H
+#define _LINUX_SCHED_NOHZ_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_NOHZ_H */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 6c8a1db44dde..5979f47c422c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -10,6 +10,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/cpufreq.h>
 #include <linux/sched/stat.h>
+#include <linux/sched/nohz.h>
 #include <linux/u64_stats_sync.h>
 #include <linux/sched/deadline.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 6e36467b678f..301323221d2c 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -47,6 +47,7 @@
 #include <linux/sched/sysctl.h>
 #include <linux/sched/rt.h>
 #include <linux/sched/deadline.h>
+#include <linux/sched/nohz.h>
 #include <linux/timer.h>
 #include <linux/freezer.h>
 
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 52abe90b590d..8b084c5a2962 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -22,6 +22,7 @@
 #include <linux/sched/signal.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/stat.h>
+#include <linux/sched/nohz.h>
 #include <linux/module.h>
 #include <linux/irq_work.h>
 #include <linux/posix-timers.h>
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index c78f2b3e076e..bf69e770e303 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -40,6 +40,7 @@
 #include <linux/irq_work.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/sysctl.h>
+#include <linux/sched/nohz.h>
 #include <linux/slab.h>
 #include <linux/compat.h>
 
-- 
2.7.4