core: Fix BSD breakage, I hope #5028
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Rubber-stamping this since it's blocking a snapshot. |
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…ring-fences, r=phansch
Detect usage of invalid atomic ordering in memory fences
Detect usage of `core::sync::atomic::{fence, compiler_fence}` with `Ordering::Relaxed` and suggest valid alternatives.
changelog: Extend `invalid_atomic_ordering` to lint memory fences
Fixes rust-lang#5026
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