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 <tglx@xxxxxxxxxxxxx>