Merge tag 'io_uring-6.7-2023-11-30' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix an issue with discontig page checking for IORING_SETUP_NO_MMAP
- Fix an issue with not allowing IORING_SETUP_NO_MMAP also disallowing
mmap'ed buffer rings
- Fix an issue with deferred release of memory mapped pages
- Fix a lockdep issue with IORING_SETUP_NO_MMAP
- Use fget/fput consistently, even from our sync system calls. No real
issue here, but if we were ever to allow closing io_uring descriptors
it would be required. Let's play it safe and just use the full ref
counted versions upfront. Most uses of io_uring are threaded anyway,
and hence already doing the full version underneath.
* tag 'io_uring-6.7-2023-11-30' of git://git.kernel.dk/linux:
io_uring: use fget/fput consistently
io_uring: free io_buffer_list entries via RCU
io_uring/kbuf: prune deferred locked cache when tearing down
io_uring/kbuf: recycle freed mapped buffer ring entries
io_uring/kbuf: defer release of mapped buffer rings
io_uring: enable io_mem_alloc/free to be used in other parts
io_uring: don't guard IORING_OFF_PBUF_RING with SETUP_NO_MMAP
io_uring: don't allow discontig pages for IORING_SETUP_NO_MMAP
