Re: [PATCH 5/6] NFS: direct-io: convert to FOLL_PIN pages
From: Al Viro <viro@zeniv.linux.org.uk>
Date: 2022-08-27 22:49:12
Also in:
linux-fsdevel, linux-mm, linux-nfs, linux-xfs, lkml
On Sat, Aug 27, 2022 at 01:36:06AM -0700, John Hubbard wrote:
Convert the NFS Direct IO layer to use pin_user_pages_fast() and unpin_user_page(), instead of get_user_pages_fast() and put_page().
Again, this stuff can be hit with ITER_BVEC iterators
- result = iov_iter_get_pages_alloc2(iter, &pagevec, + result = dio_w_iov_iter_pin_pages_alloc(iter, &pagevec, rsize, &pgbase);
and this will break on those.