[PATCH v2 for-5.13 0/7] ctx wide rsrc nodes

[Pavel Begunkov <asml.silence@gmail.com>]

The main idea here is to make make rsrc nodes (aka ref nodes) to be per
ctx rather than per rsrc_data, that is a requirement for having multiple
resource types. All the meat to it in 7/7.

Also rsrc API is complicated and too misuse. 1-6 may be considered to
be preps but also together with 7/7 gradually make the API simpler and
so more resilient.

v2: io_rsrc_node_destroy() last rsrc_node on ctx_free()

Pavel Begunkov (7):
  io_uring: name rsrc bits consistently
  io_uring: simplify io_rsrc_node_ref_zero
  io_uring: use rsrc prealloc infra for files reg
  io_uring: encapsulate rsrc node manipulations
  io_uring: move rsrc_put callback into io_rsrc_data
  io_uring: refactor io_queue_rsrc_removal()
  io_uring: ctx-wide rsrc nodes

 fs/io_uring.c | 237 +++++++++++++++++++++-----------------------------
 1 file changed, 97 insertions(+), 140 deletions(-)

-- 
2.24.0