On Wed, Dec 21, 2022 at 12:53:29PM -0800, Eric Biggers wrote: > > That's fine, I guess. One quirk of the above approach is that if the last > needed element of the scatterlist has a lot of extra pages, this will iterate > through all those extra pages, processing 0 bytes from each. It could just stop > when done. I suppose it's not worth worrying about that case, though. Ideally this should be handled in the sg_miter interface, IOW, it should allow us to cap the SG list at a certain number of bytes as opposed to a certain number of entries. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt