sched: Convert cpupri lock to raw_spinlock

Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 6 insertions, 6 deletions

diff --git a/kernel/sched_cpupri.c b/kernel/sched_cpupri.c
index 0f052fc674d..597b33099df 100644
--- a/kernel/sched_cpupri.c
+++ b/kernel/sched_cpupri.c
@@ -135,26 +135,26 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri)
         if (likely(newpri != CPUPRI_INVALID)) {
                 struct cpupri_vec *vec = &cp->pri_to_cpu[newpri];
 
-                spin_lock_irqsave(&vec->lock, flags);
+                raw_spin_lock_irqsave(&vec->lock, flags);
 
                 cpumask_set_cpu(cpu, vec->mask);
                 vec->count++;
                 if (vec->count == 1)
                         set_bit(newpri, cp->pri_active);
 
-                spin_unlock_irqrestore(&vec->lock, flags);
+                raw_spin_unlock_irqrestore(&vec->lock, flags);
         }
         if (likely(oldpri != CPUPRI_INVALID)) {
                 struct cpupri_vec *vec  = &cp->pri_to_cpu[oldpri];
 
-                spin_lock_irqsave(&vec->lock, flags);
+                raw_spin_lock_irqsave(&vec->lock, flags);
 
                 vec->count--;
                 if (!vec->count)
                         clear_bit(oldpri, cp->pri_active);
                 cpumask_clear_cpu(cpu, vec->mask);
 
-                spin_unlock_irqrestore(&vec->lock, flags);
+                raw_spin_unlock_irqrestore(&vec->lock, flags);
         }
 
         *currpri = newpri;
@@ -180,7 +180,7 @@ int cpupri_init(struct cpupri *cp, bool bootmem)
         for (i = 0; i < CPUPRI_NR_PRIORITIES; i++) {
                 struct cpupri_vec *vec = &cp->pri_to_cpu[i];
 
-                spin_lock_init(&vec->lock);
+                raw_spin_lock_init(&vec->lock);
                 vec->count = 0;
                 if (!zalloc_cpumask_var(&vec->mask, gfp))
                         goto cleanup;
diff --git a/kernel/sched_cpupri.h b/kernel/sched_cpupri.h
index 9a7e859b8fb..7cb5bb6b95b 100644
--- a/kernel/sched_cpupri.h
+++ b/kernel/sched_cpupri.h
@@ -12,7 +12,7 @@
 /* values 2-101 are RT priorities 0-99 */
 
 struct cpupri_vec {
-        spinlock_t lock;
+        raw_spinlock_t lock;
         int        count;
         cpumask_var_t mask;
 };