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22b65a4057
In order to copy the behavior rust currently follows for basic arithmetic operations and panic if the result of an addition or subtraction results in a value that would violate the invariants of Instant, but only if the kernel has overflow checking for rust enabled. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250820203704.731588-2-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>