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| author | Pavel Begunkov <asml.silence@gmail.com> | 2024-08-07 15:18:14 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-08-25 08:27:01 -0600 |
| commit | 2b8e976b984278edbeab3251d370e76d237699f9 (patch) | |
| tree | f91366b1a924921fc52d4fa43c8868dd3f30709d /include | |
| parent | d29cb3726f03cdac7889f0109a7cb84f79e168a8 (diff) | |
| download | lwn-2b8e976b984278edbeab3251d370e76d237699f9.tar.gz lwn-2b8e976b984278edbeab3251d370e76d237699f9.zip | |
io_uring: user registered clockid for wait timeouts
Add a new registration opcode IORING_REGISTER_CLOCK, which allows the
user to select which clock id it wants to use with CQ waiting timeouts.
It only allows a subset of all posix clocks and currently supports
CLOCK_MONOTONIC and CLOCK_BOOTTIME.
Suggested-by: Lewis Baker <lewissbaker@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/98f2bc8a3c36cdf8f0e6a275245e81e903459703.1723039801.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/io_uring_types.h | 3 | ||||
| -rw-r--r-- | include/uapi/linux/io_uring.h | 7 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h index 3315005df117..4b9ba523978d 100644 --- a/include/linux/io_uring_types.h +++ b/include/linux/io_uring_types.h @@ -239,6 +239,9 @@ struct io_ring_ctx { struct io_rings *rings; struct percpu_ref refs; + clockid_t clockid; + enum tk_offsets clock_offset; + enum task_work_notify_mode notify_method; unsigned sq_thread_idle; } ____cacheline_aligned_in_smp; diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 6a81f55fcd0d..7af716136df9 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -596,6 +596,8 @@ enum io_uring_register_op { IORING_REGISTER_NAPI = 27, IORING_UNREGISTER_NAPI = 28, + IORING_REGISTER_CLOCK = 29, + /* this goes last */ IORING_REGISTER_LAST, @@ -676,6 +678,11 @@ struct io_uring_restriction { __u32 resv2[3]; }; +struct io_uring_clock_register { + __u32 clockid; + __u32 __resv[3]; +}; + struct io_uring_buf { __u64 addr; __u32 len; |