Re: [PATCH 2/2] x86/mm: Randomize va with generic arch_pick_mmap_layout()

[Peter Zijlstra <peterz@xxxxxxxxxxxxx>]

On Tue, Sep 21, 2021 at 07:02:52PM +0800, sxwjean@xxxxxx wrote:
> +static inline int is_compat_task(void)
> +{
> +	return IS_ENABLED(CONFIG_COMPAT) && test_thread_flag(TIF_32BIT);
> +}

This is fundamentally broken.