linux-kernel - [PATCH 03/48] sched/headers: Prepare for new header dependencies before moving code to <linux/sched/wake

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Date:   Wed,  8 Feb 2017 19:39:05 +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 03/48] sched/headers: Prepare for new header dependencies before moving code to <linux/sched/wake_q.h>

We are going to split <linux/sched/wake_q.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/wake_q.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>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 include/linux/sched/wake_q.h    | 6 ++++++
 ipc/mqueue.c                    | 1 +
 ipc/msg.c                       | 1 +
 ipc/sem.c                       | 1 +
 kernel/futex.c                  | 1 +
 kernel/locking/mutex.c          | 1 +
 kernel/locking/rtmutex.c        | 1 +
 kernel/locking/rtmutex_common.h | 1 +
 kernel/locking/rwsem-xadd.c     | 3 ++-
 kernel/sched/sched.h            | 1 +
 10 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h
new file mode 100644
index 000000000000..6383b35e4eba
--- /dev/null
+++ b/include/linux/sched/wake_q.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_WAKE_Q_H
+#define _LINUX_SCHED_WAKE_Q_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_WAKE_Q_H */
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 7a2d8f0c8ae5..a604f1036067 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -35,6 +35,7 @@
 #include <linux/ipc_namespace.h>
 #include <linux/user_namespace.h>
 #include <linux/slab.h>
+#include <linux/sched/wake_q.h>
 
 #include <net/sock.h>
 #include "util.h"
diff --git a/ipc/msg.c b/ipc/msg.c
index e3e52ce01123..ecc387e573f6 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -31,6 +31,7 @@
 #include <linux/list.h>
 #include <linux/security.h>
 #include <linux/sched.h>
+#include <linux/sched/wake_q.h>
 #include <linux/syscalls.h>
 #include <linux/audit.h>
 #include <linux/seq_file.h>
diff --git a/ipc/sem.c b/ipc/sem.c
index 3ec5742b5640..c65dff526a9f 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -82,6 +82,7 @@
 #include <linux/rwsem.h>
 #include <linux/nsproxy.h>
 #include <linux/ipc_namespace.h>
+#include <linux/sched/wake_q.h>
 
 #include <linux/uaccess.h>
 #include "util.h"
diff --git a/kernel/futex.c b/kernel/futex.c
index 0842c8ca534b..e41472f33c73 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -61,6 +61,7 @@
 #include <linux/nsproxy.h>
 #include <linux/ptrace.h>
 #include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
 #include <linux/hugetlb.h>
 #include <linux/freezer.h>
 #include <linux/bootmem.h>
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index ad2d9e22697b..57f6311e2405 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -21,6 +21,7 @@
 #include <linux/ww_mutex.h>
 #include <linux/sched.h>
 #include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index d340be3a488f..d4f798491361 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/sched/rt.h>
 #include <linux/sched/deadline.h>
+#include <linux/sched/wake_q.h>
 #include <linux/timer.h>
 
 #include "rtmutex_common.h"
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index 990134617b4c..856dfff5c33a 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -13,6 +13,7 @@
 #define __KERNEL_RTMUTEX_COMMON_H
 
 #include <linux/rtmutex.h>
+#include <linux/sched/wake_q.h>
 
 /*
  * This is the control structure for tasks blocked on a rt_mutex,
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 2ad8d8dc3bb1..4fe8d8ad4396 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -10,10 +10,11 @@
  * and Davidlohr Bueso <davidlohr@...com>. Based on mutexes.
  */
 #include <linux/rwsem.h>
-#include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/export.h>
+#include <linux/sched.h>
 #include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
 #include <linux/osq_lock.h>
 
 #include "rwsem.h"
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 9b9cb260d9cf..683570739f46 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3,6 +3,7 @@
 #include <linux/sched/sysctl.h>
 #include <linux/sched/topology.h>
 #include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
 #include <linux/u64_stats_sync.h>
 #include <linux/sched/deadline.h>
 #include <linux/kernel_stat.h>
-- 
2.7.4