diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-07-12 21:52:42 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-24 18:41:07 -0600 |
| commit | bc24d6bd32df0be19df3d30e74be4ba56493c0e2 (patch) | |
| tree | 5eb3dd69a67f4eb5f256ec5e9253c16ab72c462b /include/uapi/linux | |
| parent | 68ef5578efc8893489400b1ec30af66dab4f75ff (diff) | |
io_uring: add notification slot registration
Let the userspace to register and unregister notification slots.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a0aa8161fe3ebb2a4cc6e5dbd0cffb96e6881cf5.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 4c9b11e2e991..dcfc7a0bda0c 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -457,6 +457,10 @@ enum { /* register a range of fixed file slots for automatic slot allocation */ IORING_REGISTER_FILE_ALLOC_RANGE = 25, + /* zerocopy notification API */ + IORING_REGISTER_NOTIFIERS = 26, + IORING_UNREGISTER_NOTIFIERS = 27, + /* this goes last */ IORING_REGISTER_LAST }; @@ -503,6 +507,19 @@ struct io_uring_rsrc_update2 { __u32 resv2; }; +struct io_uring_notification_slot { + __u64 tag; + __u64 resv[3]; +}; + +struct io_uring_notification_register { + __u32 nr_slots; + __u32 resv; + __u64 resv2; + __u64 data; + __u64 resv3; +}; + /* Skip updating fd indexes set to this value in the fd table */ #define IORING_REGISTER_FILES_SKIP (-2) |