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Add a method for `ARef` that is analogous to `Arc::into_raw`. It is the inverse operation of `ARef::from_raw`, and allows you to convert the `ARef` back into a raw pointer while retaining ownership of the refcount. This new function will be used by [1] for converting the type in an `ARef` using `ARef::from_raw(ARef::into_raw(me).cast())`. Alice has also needed the same function for other use-cases in the past, but [1] is the first to go upstream. This was implemented independently by Kartik and Alice. The two versions were merged by Alice, so all mistakes are Alice's. Link: https://lore.kernel.org/r/20240801-vma-v3-1-db6c1c0afda9@google.com [1] Link: https://github.com/Rust-for-Linux/linux/issues/1044 Signed-off-by: Kartik Prajapati <kartikprajapati987@gmail.com> Co-developed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <benno.lossin@proton.me> [ Reworded to correct the author reference and changed tag to Link since it is not a bug. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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