[PATCH 2/4] sched/deadline: unify dl_time_before usage

[Juri Lelli <juri.lelli@arm.com>]

Move dl_time_before static definition in include/linux/sched/deadline.h
so that it can be used by different parties without being re-defined.

Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reported-by: Luca Abeni <luca.abeni@unitn.it>
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
---
 include/linux/sched/deadline.h | 5 +++++
 kernel/sched/cpudeadline.c     | 5 -----
 kernel/sched/cpudeadline.h     | 1 +
 kernel/sched/sched.h           | 5 -----
 4 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/include/linux/sched/deadline.h b/include/linux/sched/deadline.h
index 9d303b8..9089a2a 100644
--- a/include/linux/sched/deadline.h
+++ b/include/linux/sched/deadline.h
@@ -21,4 +21,9 @@ static inline int dl_task(struct task_struct *p)
 	return dl_prio(p->prio);
 }
 
+static inline bool dl_time_before(u64 a, u64 b)
+{
+	return (s64)(a - b) < 0;
+}
+
 #endif /* _SCHED_DEADLINE_H */
diff --git a/kernel/sched/cpudeadline.c b/kernel/sched/cpudeadline.c
index c6acb07..5a75b08 100644
--- a/kernel/sched/cpudeadline.c
+++ b/kernel/sched/cpudeadline.c
@@ -31,11 +31,6 @@ static inline int right_child(int i)
 	return (i << 1) + 2;
 }
 
-static inline int dl_time_before(u64 a, u64 b)
-{
-	return (s64)(a - b) < 0;
-}
-
 static void cpudl_exchange(struct cpudl *cp, int a, int b)
 {
 	int cpu_a = cp->elements[a].cpu, cpu_b = cp->elements[b].cpu;
diff --git a/kernel/sched/cpudeadline.h b/kernel/sched/cpudeadline.h
index 1a0a6ef..fcbdf83 100644
--- a/kernel/sched/cpudeadline.h
+++ b/kernel/sched/cpudeadline.h
@@ -2,6 +2,7 @@
 #define _LINUX_CPUDL_H
 
 #include <linux/sched.h>
+#include <linux/sched/deadline.h>
 
 #define IDX_INVALID     -1
 
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 68cda11..7cfc3cd 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -109,11 +109,6 @@ static inline int task_has_dl_policy(struct task_struct *p)
 	return dl_policy(p->policy);
 }
 
-static inline bool dl_time_before(u64 a, u64 b)
-{
-	return (s64)(a - b) < 0;
-}
-
 /*
  * Tells if entity @a should preempt entity @b.
  */
-- 
2.2.2