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Diffstat (limited to 'arch/s390/include/asm/spinlock.h')
-rw-r--r--arch/s390/include/asm/spinlock.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 63ebf37d3143..7e9e09f600fa 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -10,6 +10,8 @@
#define __ASM_SPINLOCK_H
#include <linux/smp.h>
+#include <asm/barrier.h>
+#include <asm/processor.h>
#define SPINLOCK_LOCKVAL (S390_lowcore.spinlock_lockval)
@@ -97,6 +99,7 @@ static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
{
while (arch_spin_is_locked(lock))
arch_spin_relax(lock);
+ smp_acquire__after_ctrl_dep();
}
/*