Documentation * [x] Additional notes on using the returned pointer of `Atomic::as_ptr()` [1](https://lore.kernel.org/rust-for-linux/DB9FX5XAK4JJ.3GTCC6Z5EHARV@kernel.org/) * [ ] Well defined "Adding" for `AtomicAdd` safety requirement [2](https://lore.kernel.org/rust-for-linux/DB9J3GBDB2UK.2OHWT5AI5DXFD@kernel.org/) Code arrangement and implementation: * [x] Split safety requirements for atomic/ops.rs [3](https://lore.kernel.org/rust-for-linux/DB92RCJX0C6E.352SUWSV7VBE9@kernel.org/)
