Re: [PATCH] 9p/virtio: restrict page pinning to user_backed_iter() iovec

[David Howells]

Christian Schoenebeck <linux_oss@xxxxxxxxxxxxx> wrote:

> > -	if (!iov_iter_is_kvec(data)) {
> > +	if (user_backed_iter(data)) {

That looks wrong.  If the I/O is coming through netfslib, you should never see
ITER_UBUF or ITER_IOVEC in the filesystem.

David