sched/core: Introduce 'struct rq_flags'

In order to be able to pass around more than just the IRQ flags in the
future, add a rq_flags structure.

No difference in code generation for the x86_64-defconfig build I
tested.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 9 insertions, 5 deletions

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index aab4cf05d48a..a5eecb1e5e4b 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1451,13 +1451,17 @@ static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta) { }
 static inline void sched_avg_update(struct rq *rq) { }
 #endif
 
-struct rq *__task_rq_lock(struct task_struct *p)
+struct rq_flags {
+        unsigned long flags;
+};
+
+struct rq *__task_rq_lock(struct task_struct *p, struct rq_flags *rf)
         __acquires(rq->lock);
-struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags)
+struct rq *task_rq_lock(struct task_struct *p, struct rq_flags *rf)
         __acquires(p->pi_lock)
         __acquires(rq->lock);
 
-static inline void __task_rq_unlock(struct rq *rq)
+static inline void __task_rq_unlock(struct rq *rq, struct rq_flags *rf)
         __releases(rq->lock)
 {
         lockdep_unpin_lock(&rq->lock);
@@ -1465,13 +1469,13 @@ static inline void __task_rq_unlock(struct rq *rq)
 }
 
 static inline void
-task_rq_unlock(struct rq *rq, struct task_struct *p, unsigned long *flags)
+task_rq_unlock(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
         __releases(rq->lock)
         __releases(p->pi_lock)
 {
         lockdep_unpin_lock(&rq->lock);
         raw_spin_unlock(&rq->lock);
-        raw_spin_unlock_irqrestore(&p->pi_lock, *flags);
+        raw_spin_unlock_irqrestore(&p->pi_lock, rf->flags);
 }
 
 #ifdef CONFIG_SMP