On 6/2/21 11:18 PM, Dmitry Kadashev wrote:

This started out as an attempt to add mkdirat support to io_uring which
is heavily based on renameat() / unlinkat() support.

During the review process more operations were added (linkat, symlinkat,
mknodat) mainly to keep things uniform internally (in namei.c), and
with things changed in namei.c adding support for these operations to
io_uring is trivial, so that was done too. See
https://lore.kernel.org/io-uring/20210514145259.wtl4xcsp52woi6ab@wittgenstein/ (local)

The first patch is preparation with no functional changes, makes
do_mkdirat accept struct filename pointer rather than the user string.

The second one leverages that to implement mkdirat in io_uring.

3-6 just convert other similar do_* functions in namei.c to accept
struct filename, for uniformity with do_mkdirat, do_renameat and
do_unlinkat. No functional changes there.

7 changes do_* helpers in namei.c to return ints rather than some of
them returning ints and some longs.

8-10 add symlinkat, linkat and mknodat support to io_uring
(correspondingly).

Based on for-5.14/io_uring.

Can you send in the liburing tests as well?

-- 
Jens Axboe