[v5 PATCH 10/14] crypto: acomp - Add support for folios

[Herbert Xu]

On Sat, Mar 15, 2025 at 06:30:40PM +0800, Herbert Xu wrote:
>
> -		n = slen / PAGE_SIZE;
> -		n += (offset_in_page(slen) + soff - 1) / PAGE_SIZE;
> -		if (slen <= req->src->length &&
> -		    (!PageHighMem(nth_page(spage, n)) ||
> -		     size_add(soff, slen) <= PAGE_SIZE))
> +			spage = nth_page(spage, soff / PAGE_SIZE);
> +			soff = offset_in_page(soff);
> +
> +			n = slen / PAGE_SIZE;
> +			n += (offset_in_page(slen) + soff - 1) / PAGE_SIZE;
> +			if (PageHighMem(nth_page(spage, n)) &&
> +			    size_add(soff, slen) <= PAGE_SIZE)
> +				break;

This should of course be

			size_add(soff, slen) > PAGE_SIZE

> +			if (PageHighMem(dpage + n) &&
> +			    size_add(doff, dlen) <= PAGE_SIZE)

Ditto.

Cheers,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt