On 24.01.23 14:32, Christoph Hellwig wrote:
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.
Right, iov_iter_get_pages2() includes vmsplice() that still needs love.
Thanks!
--
Thanks,
David / dhildenb
