linux-kernel - [PATCH 22/53] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h>

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Message-Id: <1486579524-14901-23-git-send-email-mingo@kernel.org>
Date:   Wed,  8 Feb 2017 19:44:53 +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 22/53] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h>

Only a small fraction of sched.h users actually utilizes these defines,
and they are not scheduler functionality in any case, so move them
into their separate header.

(Also make <linux/sched/jobctl.h> a self-contained header.)

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.h        | 30 ------------------------------
 include/linux/sched/jobctl.h | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 30 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index f067a4209f7b..144d27b6594c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1545,36 +1545,6 @@ TASK_PFA_CLEAR(SPREAD_SLAB, spread_slab)
 TASK_PFA_TEST(LMK_WAITING, lmk_waiting)
 TASK_PFA_SET(LMK_WAITING, lmk_waiting)
 
-/*
- * task->jobctl flags
- */
-#define JOBCTL_STOP_SIGMASK	0xffff	/* signr of the last group stop */
-
-#define JOBCTL_STOP_DEQUEUED_BIT 16	/* stop signal dequeued */
-#define JOBCTL_STOP_PENDING_BIT	17	/* task should stop for group stop */
-#define JOBCTL_STOP_CONSUME_BIT	18	/* consume group stop count */
-#define JOBCTL_TRAP_STOP_BIT	19	/* trap for STOP */
-#define JOBCTL_TRAP_NOTIFY_BIT	20	/* trap for NOTIFY */
-#define JOBCTL_TRAPPING_BIT	21	/* switching to TRACED */
-#define JOBCTL_LISTENING_BIT	22	/* ptracer is listening for events */
-
-#define JOBCTL_STOP_DEQUEUED	(1UL << JOBCTL_STOP_DEQUEUED_BIT)
-#define JOBCTL_STOP_PENDING	(1UL << JOBCTL_STOP_PENDING_BIT)
-#define JOBCTL_STOP_CONSUME	(1UL << JOBCTL_STOP_CONSUME_BIT)
-#define JOBCTL_TRAP_STOP	(1UL << JOBCTL_TRAP_STOP_BIT)
-#define JOBCTL_TRAP_NOTIFY	(1UL << JOBCTL_TRAP_NOTIFY_BIT)
-#define JOBCTL_TRAPPING		(1UL << JOBCTL_TRAPPING_BIT)
-#define JOBCTL_LISTENING	(1UL << JOBCTL_LISTENING_BIT)
-
-#define JOBCTL_TRAP_MASK	(JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
-#define JOBCTL_PENDING_MASK	(JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
-
-extern bool task_set_jobctl_pending(struct task_struct *task,
-				    unsigned long mask);
-extern void task_clear_jobctl_trapping(struct task_struct *task);
-extern void task_clear_jobctl_pending(struct task_struct *task,
-				      unsigned long mask);
-
 static inline void rcu_copy_process(struct task_struct *p)
 {
 #ifdef CONFIG_PREEMPT_RCU
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index 228e4644937b..016afa0fb3bb 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -1,4 +1,36 @@
 #ifndef _LINUX_SCHED_JOBCTL_H
 #define _LINUX_SCHED_JOBCTL_H
 
+#include <linux/types.h>
+
+struct task_struct;
+
+/*
+ * task->jobctl flags
+ */
+#define JOBCTL_STOP_SIGMASK	0xffff	/* signr of the last group stop */
+
+#define JOBCTL_STOP_DEQUEUED_BIT 16	/* stop signal dequeued */
+#define JOBCTL_STOP_PENDING_BIT	17	/* task should stop for group stop */
+#define JOBCTL_STOP_CONSUME_BIT	18	/* consume group stop count */
+#define JOBCTL_TRAP_STOP_BIT	19	/* trap for STOP */
+#define JOBCTL_TRAP_NOTIFY_BIT	20	/* trap for NOTIFY */
+#define JOBCTL_TRAPPING_BIT	21	/* switching to TRACED */
+#define JOBCTL_LISTENING_BIT	22	/* ptracer is listening for events */
+
+#define JOBCTL_STOP_DEQUEUED	(1UL << JOBCTL_STOP_DEQUEUED_BIT)
+#define JOBCTL_STOP_PENDING	(1UL << JOBCTL_STOP_PENDING_BIT)
+#define JOBCTL_STOP_CONSUME	(1UL << JOBCTL_STOP_CONSUME_BIT)
+#define JOBCTL_TRAP_STOP	(1UL << JOBCTL_TRAP_STOP_BIT)
+#define JOBCTL_TRAP_NOTIFY	(1UL << JOBCTL_TRAP_NOTIFY_BIT)
+#define JOBCTL_TRAPPING		(1UL << JOBCTL_TRAPPING_BIT)
+#define JOBCTL_LISTENING	(1UL << JOBCTL_LISTENING_BIT)
+
+#define JOBCTL_TRAP_MASK	(JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
+#define JOBCTL_PENDING_MASK	(JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
+
+extern bool task_set_jobctl_pending(struct task_struct *task, unsigned long mask);
+extern void task_clear_jobctl_trapping(struct task_struct *task);
+extern void task_clear_jobctl_pending(struct task_struct *task, unsigned long mask);
+
 #endif /* _LINUX_SCHED_JOBCTL_H */
-- 
2.7.4