RE: [PATCH] fio: simplify parse_is_percent()

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> -----Original Message-----
> From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
> Sent: Sunday, February 14, 2021 2:15 PM
> To: axboe@xxxxxxxxx
> Cc: fio@xxxxxxxxxxxxxxx
> Subject: [PATCH] fio: simplify parse_is_percent()

fio: -> parse:?

> 
> Check like this
> 
> 	unsigned long long val <= -1ULL
> 
> is tautologically true because of how type conversions work.
> 
> Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
> ---
> 
>  parse.h |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/parse.h
> +++ b/parse.h
> @@ -131,7 +131,7 @@ static inline void *td_var(void *to, const struct
> fio_option *o,
> 
>  static inline int parse_is_percent(unsigned long long val)
>  {
> -	return val <= -1ULL && val >= (-1ULL - 100ULL);
> +	return val >= -101;

Nice cleanup, but wouldn't that be better to keep the ULL suffix
for the sake of clarity?

>  }
> 
>  #define ZONE_BASE_VAL ((-1ULL >> 1) + 1)

This patch is based on your earlier patch
"zbd: support 'z' suffix for zone granularity" that is still in review,
why not to combine these two in a series?





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