Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > Honestly, I think the *real* fix would be a type-based one. Don't do > > iov_iter_kvec(&iter, ITER_DEST, ... > > at all, but instead have two different kinds of 'struct iov_iter': one > as a destination (iov_iter_dst), and one as a source (iov_iter_src), Or maybe something along the lines of iov_iter_into_kvec() and iov_iter_from_kvec()? Also, would it make sense to disallow asking the iterator for its direction entirely and only use it for internal sanity checking? In many of the places it is looked at, the information is also available in another form (the IOCB_WRITE flag, for example). David
