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Merge tag 'for-6.5/io_uring-2023-06-23' of git://git.kernel.dk/linux

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Pull io_uring updates from Jens Axboe:
 "Nothing major in this release, just a bunch of cleanups and some
  optimizations around networking mostly.

   - clean up file request flags handling (Christoph)

   - clean up request freeing and CQ locking (Pavel)

   - support for using pre-registering the io_uring fd at setup time
     (Josh)

   - Add support for user allocated ring memory, rather than having the
     kernel allocate it. Mostly for packing rings into a huge page (me)

   - avoid an unnecessary double retry on receive (me)

   - maintain ordering for task_work, which also improves performance
     (me)

   - misc cleanups/fixes (Pavel, me)"

* tag 'for-6.5/io_uring-2023-06-23' of git://git.kernel.dk/linux: (39 commits)
  io_uring: merge conditional unlock flush helpers
  io_uring: make io_cq_unlock_post static
  io_uring: inline __io_cq_unlock
  io_uring: fix acquire/release annotations
  io_uring: kill io_cq_unlock()
  io_uring: remove IOU_F_TWQ_FORCE_NORMAL
  io_uring: don't batch task put on reqs free
  io_uring: move io_clean_op()
  io_uring: inline io_dismantle_req()
  io_uring: remove io_free_req_tw
  io_uring: open code io_put_req_find_next
  io_uring: add helpers to decode the fixed file file_ptr
  io_uring: use io_file_from_index in io_msg_grab_file
  io_uring: use io_file_from_index in __io_sync_cancel
  io_uring: return REQ_F_ flags from io_file_get_flags
  io_uring: remove io_req_ffs_set
  io_uring: remove a confusing comment above io_file_get_flags
  io_uring: remove the mode variable in io_file_get_flags
  io_uring: remove __io_file_supports_nowait
  io_uring: wait interruptibly for request completions on exit
  ...
This commit is contained in:
Linus Torvalds
2023-06-26 12:30:26 -07:00
parent 3eccc0c886 c98c81a4ac
commit 0aa69d53ac
21 changed files with 421 additions and 339 deletions
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16
include/uapi/linux/io_uring.h
View File

@@ -173,6 +173,18 @@ enum {
*/
#define IORING_SETUP_DEFER_TASKRUN (1U << 13)
/*
* Application provides the memory for the rings
*/
#define IORING_SETUP_NO_MMAP (1U << 14)
/*
* Register the ring fd in itself for use with
* IORING_REGISTER_USE_REGISTERED_RING; return a registered fd index rather
* than an fd.
*/
#define IORING_SETUP_REGISTERED_FD_ONLY (1U << 15)
enum io_uring_op {
IORING_OP_NOP,
IORING_OP_READV,
@@ -406,7 +418,7 @@ struct io_sqring_offsets {
__u32 dropped;
__u32 array;
__u32 resv1;
__u64 resv2;
__u64 user_addr;
};
/*
@@ -425,7 +437,7 @@ struct io_cqring_offsets {
__u32 cqes;
__u32 flags;
__u32 resv1;
__u64 resv2;
__u64 user_addr;
};
/*