On Mon, Dec 13, 2021 at 12:06:34AM +0000, Matthew Wilcox (Oracle) wrote: > Instead of passing in a 'buf' and 'userbuf' argument, pass in an iov_iter. > s390 needs more work to pass the iov_iter down further, or refactor, > but I'd be more comfortable if someone who can test on s390 did that work. > > It's more convenient to convert the whole of read_from_oldmem() to > take an iov_iter at the same time, so rename it to read_from_oldmem_iter() > and add a temporary read_from_oldmem() wrapper that creates an iov_iter. This looks pretty reasonable. s390 could use some love from people that know the code, and yes, the kerneldoc comments should go away.
