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-rw-r--r--arch/x86/include/asm/spinlock.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 625660f8a2fc..7050d864f520 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -183,10 +183,10 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
183 183
184static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) 184static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
185{ 185{
186 __ticket_t head = ACCESS_ONCE(lock->tickets.head); 186 __ticket_t head = READ_ONCE(lock->tickets.head);
187 187
188 for (;;) { 188 for (;;) {
189 struct __raw_tickets tmp = ACCESS_ONCE(lock->tickets); 189 struct __raw_tickets tmp = READ_ONCE(lock->tickets);
190 /* 190 /*
191 * We need to check "unlocked" in a loop, tmp.head == head 191 * We need to check "unlocked" in a loop, tmp.head == head
192 * can be false positive because of overflow. 192 * can be false positive because of overflow.