[PATCH RFC 3/4] block: Support atomic writes limits for stacked devices

[Christoph Hellwig]

On Tue, Sep 03, 2024 at 03:07:47PM +0000, John Garry wrote:
> +	} else if (t->features & BLK_FEAT_ATOMIC_WRITES) {
> +		t->atomic_write_hw_max = min_not_zero(t->atomic_write_hw_max,
> +						b->atomic_write_hw_max);
> +		t->atomic_write_boundary_sectors =
> +					min_not_zero(t->atomic_write_boundary_sectors,
> +						b->atomic_write_boundary_sectors);
> +		t->atomic_write_hw_unit_min = max(t->atomic_write_hw_unit_min,
> +						b->atomic_write_hw_unit_min);
> +		t->atomic_write_hw_unit_max =
> +					min_not_zero(t->atomic_write_hw_unit_max,
> +						b->atomic_write_hw_unit_max);

Maybe split this into a helper to make the code more readable?

Otherwise this looks good to me.