Re: [PATCH v6 6/6] zsmalloc: Implement writeback mechanism for zsmalloc

[Sergey Senozhatsky]

On (22/11/18 16:15), Nhat Pham wrote:
> +
> +static int zs_zpool_shrink(void *pool, unsigned int pages,
> +			unsigned int *reclaimed)
> +{
> +	unsigned int total = 0;
> +	int ret = -EINVAL;
> +
> +	while (total < pages) {
> +		ret = zs_reclaim_page(pool, 8);
> +		if (ret < 0)
> +			break;
> +		total++;
> +	}
> +
> +	if (reclaimed)
> +		*reclaimed = total;
> +
> +	return ret;
> +}

A silly question: why do we need a retry loop in zs_reclaim_page()?