Hi Andrei,
On 6/2/20 7:02 PM, Andrei Vagin wrote:
[..]
> --- a/arch/arm64/include/asm/vdso.h
> +++ b/arch/arm64/include/asm/vdso.h
> @@ -12,6 +12,12 @@
> */
> #define VDSO_LBASE 0x0
>
> +#ifdef CONFIG_TIME_NS
> +#define __VVAR_PAGES 2
> +#else
> +#define __VVAR_PAGES 1
> +#endif
> +
> #ifndef __ASSEMBLY__
Not an issue as-is, but:
on x86 vdso+vvar is always the same size with/without CONFIG_TIME_NAMESPACE.
Timens page isn't allocated on !CONFIG_TIME_NAMESPACE, but vma is the
same size. Which simplifies criu/vdso migration between different kernel
configs.
Not any critical, but just to note..
Thanks,
Dima
