On Tue, Jan 24, 2023 at 02:22:36PM +0100, David Hildenbrand wrote: > > Note that while these series coverts the two most commonly used > > O_DIRECT implementations, there are various others ones that do not > > pin the pages yet. > > Thanks for the info ... I assume these are then for other filesystems, > right? (such that we could adjust the tests to exercise these as well) Yes. There's the fs/direct-io.c code still used by a few block based file systems, and then all the not block based file systems as well (e.g. NFS, cifs). > ... do we have a list (or is it easy to make one)? :) fs/direct-io.c is easy, just grep for blockdev_direct_IO. The others are more complicated to find, but a grep for iov_iter_get_pages2 and iov_iter_get_pages_alloc2 in fs/ should be a good approximation.
