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Diffstat (limited to 'include/asm-x86_64/spinlock.h')
-rw-r--r--include/asm-x86_64/spinlock.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h
index 5d8a5e3589f..8d3421996f9 100644
--- a/include/asm-x86_64/spinlock.h
+++ b/include/asm-x86_64/spinlock.h
@@ -31,15 +31,19 @@
"jmp 1b\n" \
LOCK_SECTION_END
+#define __raw_spin_lock_string_up \
+ "\n\tdecl %0"
+
#define __raw_spin_unlock_string \
"movl $1,%0" \
:"=m" (lock->slock) : : "memory"
static inline void __raw_spin_lock(raw_spinlock_t *lock)
{
- __asm__ __volatile__(
- __raw_spin_lock_string
- :"=m" (lock->slock) : : "memory");
+ alternative_smp(
+ __raw_spin_lock_string,
+ __raw_spin_lock_string_up,
+ "=m" (lock->slock) : : "memory");
}
#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)