Re: [PATCH] xfs: Simplify maximum determination in xrep_calc_ag_resblks()

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On Sat, Mar 01, 2025 at 11:30:52AM +0100, Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Sat, 1 Mar 2025 11:24:52 +0100
> 
> Reduce nested max() calls by a single max3() call in this
> function implementation.
> 
> The source code was transformed by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
>  fs/xfs/scrub/repair.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/scrub/repair.c b/fs/xfs/scrub/repair.c
> index 3b5288d3ef4e..6b23a3943907 100644
> --- a/fs/xfs/scrub/repair.c
> +++ b/fs/xfs/scrub/repair.c
> @@ -382,7 +382,7 @@ xrep_calc_ag_resblks(
>  			refcbt_sz);
>  	xfs_perag_put(pag);
> 
> -	return max(max(bnobt_sz, inobt_sz), max(rmapbt_sz, refcbt_sz));
> +	return max3(bnobt_sz, inobt_sz, max(rmapbt_sz, refcbt_sz));

I have nothing against the patch itself, but honestly I don't see how it
improves anything. It boils down to nesting comparison instructions too, and
doesn't make the code more clear IMHO.
So, unless somebody else has a stronger reason to have this change, NAK from my
side.

Carlos

>  }
> 
>  #ifdef CONFIG_XFS_RT
> --
> 2.48.1
> 




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