修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/arch/x86/include/asm/cmpxchg.h
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@@ -7,7 +7,7 @@
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 #include <asm/alternative.h> /* Provides LOCK_PREFIX */
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 /*
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- * Non-existant functions to indicate usage errors at link time
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+ * Non-existent functions to indicate usage errors at link time
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  * (or compile-time if the compiler implements __compiletime_error().
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  */
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 extern void __xchg_wrong_size(void)
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@@ -242,10 +242,12 @@
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 	BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long));			\
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 	VM_BUG_ON((unsigned long)(p1) % (2 * sizeof(long)));		\
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 	VM_BUG_ON((unsigned long)((p1) + 1) != (unsigned long)(p2));	\
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-	asm volatile(pfx "cmpxchg%c4b %2; sete %0"			\
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-		     : "=a" (__ret), "+d" (__old2),			\
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-		       "+m" (*(p1)), "+m" (*(p2))			\
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-		     : "i" (2 * sizeof(long)), "a" (__old1),		\
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+	asm volatile(pfx "cmpxchg%c5b %1"				\
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+		     CC_SET(e)						\
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+		     : CC_OUT(e) (__ret),				\
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+		       "+m" (*(p1)), "+m" (*(p2)),			\
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+		       "+a" (__old1), "+d" (__old2)			\
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+		     : "i" (2 * sizeof(long)),				\
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 		       "b" (__new1), "c" (__new2));			\
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 	__ret;								\
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 })