# Re: \[PATCH v2 02/14\] futex: Extend the FUTEX2 flags

- From: Thomas Gleixner \<hidden\>
- Date: 2023-08-07 18:56:59 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2023/08/2294784
- Thread: https://ratatoskr.run/linux-api/2023/08/2294049/t.md

```text
On Mon, Aug 07 2023 at 14:18, Peter Zijlstra wrote:
>  /*
>   * Flags for futex2 syscalls.
> + *
> + * NOTE: these are not pure flags, they can also be seen as:
> + *
> + *   union {
> + *     u32  flags;
> + *     struct {
> + *       u32 size    : 2,
> + *           numa    : 1,
> + *                   : 4,
> + *           private : 1;
> + *     };
> + *   };
>   */

Nice documentation

Reviewed-by: Thomas Gleixner <redacted>
```