Re: [PATCH v2 3/3] zram: enable asynchronous writeback

[Bart Van Assche]

On 7/30/25 11:49 PM, Richard Chang wrote:
> +	bio = bio_alloc(zram->bdev, 1, REQ_OP_WRITE, GFP_NOIO | __GFP_NOWARN);
> +	if (!bio) {
> +		err = -ENOMEM;
> +		goto out_free_page;
> +	}
> +
> +	req = kmalloc(sizeof(struct zram_wb_request), GFP_NOIO | __GFP_NOWARN);
> +	if (!req) {
> +		err = -ENOMEM;
> +		goto out_free_bio;
> +	}

Why are 'req' and 'bio' allocated separately instead of creating a
bio_set with front padding? See also bioset_init().

Thanks,

Bart.