[PATCH for-next 0/8] another round of rsrc refactoring

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

Further simplify rsrc infrastructure, and make it a little bit
faster.

The main part is Patch 3, which establishes 1:1 relation between
struct io_rsrc_put and nodes, which removes io_rsrc_node_switch() /
io_rsrc_node_switch_start() and all the additional complexity with
pre allocations. Note, it doesn't change any guarantees as
io_queue_rsrc_removal() was doing allocations anyway and could
always fail.

Pavel Begunkov (8):
  io_uring/rsrc: remove unused io_rsrc_node::llist
  io_uring/rsrc: infer node from ctx on io_queue_rsrc_removal
  io_uring/rsrc: merge nodes and io_rsrc_put
  io_uring/rsrc: add empty flag in rsrc_node
  io_uring/rsrc: inline io_rsrc_put_work()
  io_uring/rsrc: pass node to io_rsrc_put_work()
  io_uring/rsrc: devirtualise rsrc put callbacks
  io_uring/rsrc: disassociate nodes and rsrc_data

 io_uring/filetable.c |  14 +----
 io_uring/rsrc.c      | 146 ++++++++++++++++---------------------------
 io_uring/rsrc.h      |  32 ++--------
 3 files changed, 61 insertions(+), 131 deletions(-)

-- 
2.40.0