Re: [PATCH 1/5] x86/jump-label: Use best default nops for initaljump label calls

From: H. Peter Anvin
Date: Fri Jan 27 2012 - 15:27:36 EST


On 01/27/2012 12:14 PM, Steven Rostedt wrote:
>
> #define JUMP_LABEL_NOP_SIZE 5
>
> -#define JUMP_LABEL_INITIAL_NOP ".byte 0xe9 \n\t .long 0\n\t"
> +#ifdef CONFIG_X86_64 +# define JUMP_LABEL_INIT_NOP P6_NOP5 +#else
> +# define JUMP_LABEL_INIT_NOP 0x3e, 0x8d, 0x74, 0x26, 0x00 +#endif
>

Why not just use ASM_NOP5_ATOMIC since you have configuration
available here?

-hpa

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