feat(ecstore): add runtime-probed io_uring read backend, gray-off by default (rustfs/backlog#1104)
Wire the standalone rustfs-uring crate (https://github.com/rustfs/uring) into
LocalIoBackend as an opt-in read backend. When RUSTFS_IO_URING_READ_ENABLE is
set AND the per-disk io_uring probe succeeds, positioned reads go through the
cancel-safe UringDriver; otherwise — default, or on a restricted host, or on
any per-read driver error — reads fall back to StdBackend byte-for-byte, so the
default build is unchanged.
- Cargo.toml: rustfs-uring as a Linux-only git dependency (pinned rev). The
guard scripts/check_no_tokio_io_uring.sh allows an explicit io-uring
integration; only the tokio "io-uring" runtime feature is banned.
- UringBackend mirrors StdBackend::pread_bytes's resolution/access/bounds
preamble and only swaps the raw byte read; the other three trait methods
delegate to the inner StdBackend.
- Backend selection at LocalDisk construction via build_local_io_backend.
- Differential test uring_backend_reads_match_std: with the flag set, every
positioned read returns byte-identical data (driver-served when io_uring is
available, StdBackend fallback otherwise).
Verified: cargo check -p rustfs-ecstore on Linux; the differential test passes
under real io_uring (seccomp=unconfined). The runtime errno degradation latch,
per-disk probe cache, and productionization are tracked in
rustfs/backlog#1101/#1102.
Co-authored-by: heihutu <heihutu@gmail.com>
* chore(deps): refresh workspace deps and linux fs_type gating
- refresh workspace dependency pins and lockfile updates
- remove now-unused crate dependency entries in multiple Cargo.toml files
- enable profiling export defaults in config and scripts/run.sh
- gate os::fs_type module/function/tests to Linux to avoid non-Linux dead_code warnings
* fix(utils): simplify fs_type linux gating
- keep fs_type module-level linux cfg in os::mod
- remove redundant linux cfg on get_fs_type and test module
* chore(deps): bump s3s git revision
- update workspace s3s dependency to rev 507e1312b211c3ddc214b03875d6fabd15d22ed5
- refresh Cargo.lock source entry for s3s
* chore(dev): allow mysql_async git source and env overrides
- allow mysql_async git source in deny.toml allow-git list
- make scripts/run.sh core env vars overrideable via existing shell env
* fix(utils): import get_fs_type in fs_type tests
- add explicit super::get_fs_type import in fs_type test module
- fix Linux E0425 unresolved function errors in unit tests
* chore(dev): tune run script observability defaults
- make profiling export env overrideable in scripts/run.sh
- set RUSTFS_OBS_SAMPLE_RATIO default from 2.0 to 1.0
- update allow-git review window comments in deny.toml
* test(obs): stabilize profiling env alias tests
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