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In order for callers to be able to access the inner T safely if T: !Unpin, there needs to be a way to get a Pin<&mut T>. Add this accessor and a corresponding example to tell users how it works. This requires the pin projection functionality [1] for better ergonomic. [boqun: Apply Daniel's fix to the code example, add the reference to pin projection patch and remove out-of-date part in the commit log] Suggested-by: Benno Lossin <lossin@kernel.org> Suggested-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Link: https://github.com/Rust-for-Linux/linux/issues/1181 Link: https://lore.kernel.org/rust-for-linux/20250912174148.373530-1-lossin@kernel.org/ [1]