1) support dynamic managment for registered buffers, including
update.
2) add new IORING_REGISTER* for rsrc register and rsrc update,
which are just dispatch files/buffers to right callbacks. Needed
because old ones not nicely extendible. The downside --
restrictions not supporting it with fine granularity.
3) add rsrc tagging, with tag=0 ingnoring CQE posting.
Doesn't post CQEs on unregister, but can easily be changed
v2: instead of async_data importing for fixed rw, save
used io_mapped_ubuf and use it on re-import.
Add patch 9/12 as a preparation for that.
Fix prep rw getting a rsrc node ref for fixed files without
having a rsrc node.
Bijan Mottahedeh (1):
io_uring: implement fixed buffers registration similar to fixed files
Pavel Begunkov (11):
io_uring: move __io_sqe_files_unregister
io_uring: return back rsrc data free helper
io_uring: decouple CQE filling from requests
io_uring: preparation for rsrc tagging
io_uring: add generic path for rsrc update
io_uring: enumerate dynamic resources
io_uring: add IORING_REGISTER_RSRC
io_uring: add generic rsrc update with tags
io_uring: keep table of pointers to ubufs
io_uring: prepare fixed rw for dynanic buffers
io_uring: add full-fledged dynamic buffers support
fs/io_uring.c | 523 +++++++++++++++++++++++++---------
include/uapi/linux/io_uring.h | 23 ++
2 files changed, 405 insertions(+), 141 deletions(-)
--
2.31.1
