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fix cmpxchgq operand

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This commit is contained in:
Tomoki Shirasawa
2015-10-02 14:04:05 +09:00
parent cb4f3a4d65
commit 5b737b499d
1 changed files with 1 additions and 1 deletions
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arch/x86/kernel/include/ihk/atomic.h
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@ -165,7 +165,7 @@ static inline unsigned long atomic_cmpxchg8(unsigned long *addr,
unsigned long oldval, unsigned long oldval,
unsigned long newval) unsigned long newval)
{ {
asm volatile("lock; cmpxchgq %3, %1\n" asm volatile("lock; cmpxchgq %2, %1\n"
: "=a" (oldval), "+m" (*addr) : "=a" (oldval), "+m" (*addr)
: "r" (newval), "0" (oldval) : "r" (newval), "0" (oldval)
: "memory" : "memory"