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ec90dfcf05
linux/rust
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FUJITA Tomonori ec90dfcf05 rust: time: fix as_micros_ceil() rounding near i64::MAX 
The ceiling adjustment used saturating_add(NSEC_PER_USEC - 1) before
dividing. Once the nanosecond value gets within NSEC_PER_USEC - 1 of
i64::MAX the addition saturates to i64::MAX, which drops the ceiling
bias and can yield a result one microsecond too small.

Fixes: fae0cdc123 ("rust: time: Introduce Delta type")
Reported-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Closes: https://lore.kernel.org/rust-for-linux/CANiq72mtS0ABA2JnT5tpz6J9c_mnxY+vyPvghV_ukngWvN8F2w@mail.gmail.com/
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260807130531.1056209-1-tomo@flapping.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2026-08-11 11:34:06 +02:00
..
bindings rust: allow suspicious_runtime_symbol_definitions lint for Rust >= 1.98 2026-06-29 13:02:15 +02:00
helpers mm.git review status for mm-hotfixes-stable..mm-nonmm-stable 2026-06-21 13:20:19 -07:00
kernel rust: time: fix as_micros_ceil() rounding near i64::MAX 2026-08-11 11:34:06 +02:00
macros rust: treewide: replace __pinned_init with raw_[try_]init 2026-08-05 11:36:18 +01:00
pin-init rust: pin-init: add #[inline] to small functions 2026-08-05 11:36:18 +01:00
proc-macro2 rust: proc-macro2: rebuild if the version text changes 2026-01-23 10:44:27 +01:00
quote rust: quote: add README.md 2025-11-24 17:15:43 +01:00
syn rust: syn: add README.md 2025-11-24 17:15:47 +01:00
uapi rust: allow suspicious_runtime_symbol_definitions lint for Rust >= 1.98 2026-06-29 13:02:15 +02:00
zerocopy rust: zerocopy: update to v0.8.54 2026-07-11 13:46:02 +02:00
zerocopy-derive rust: zerocopy: update to v0.8.54 2026-07-11 13:46:02 +02:00
.gitignore rust: support running Rust documentation tests as KUnit ones 2023-07-19 09:32:53 -06:00
.kunitconfig rust: add kunitconfig 2025-03-19 23:22:21 +01:00
bindgen_parameters rust/bindgen_parameters: Mark s390 types as opaque to prevent repr conflicts 2026-06-10 16:25:13 +02:00
build_error.rs rust: add build_error crate 2022-12-04 01:59:16 +01:00
compiler_builtins.rs ARM: 9441/1: rust: Enable Rust support for ARMv7 2025-03-26 13:31:16 +00:00
exports.c kbuild: rust: provide an option to inline C helpers into Rust 2026-03-30 02:03:52 +02:00
ffi.rs rust: replace CStr with core::ffi::CStr 2025-10-22 07:47:27 +02:00
Makefile rust: kbuild: disambiguate zerocopy for rusttest 2026-08-03 08:17:16 +02:00