feat(driver,iour): detect kernel version & fallback#903
Merged
Conversation
github-actions
Bot
added
enhancement
Contributor
There was a problem hiding this comment.
Pull request overview
This PR adds Linux kernel version detection for the io_uring backend and uses it to choose between multishot opcodes and fallback implementations when running on older kernels.
Changes:
- Add
KernelVersionparsing viarustix::system::uname()and anis_kernel_newer_thanhelper. - Gate
AcceptMultiandRecvMultientry creation on minimum kernel versions, falling back to non-multishot variants. - Rework
RecvMsgMultito select between an io_uring implementation and a fallback implementation at construction time.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.
| File | Description |
|---|---|
compio-driver/src/sys/pal/iour/mod.rs |
Adds kernel version parsing + comparison helper for runtime gating. |
compio-driver/src/sys/op/multishot/iour.rs |
Uses kernel version gating for AcceptMulti opcode selection. |
compio-driver/src/sys/op/managed/iour.rs |
Uses kernel version gating for RecvMulti, and adds a RecvMsgMulti fallback path. |
compio-driver/Cargo.toml |
Enables rustix/system when the io-uring feature is on. |
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
George-Miao
reviewed
May 2, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
A second attempt after #837 .