[PATCH RESEND v1 4/4] powerpc/vdso: Add support for time namespaces

[Andrei Vagin]

On Wed, Mar 31, 2021 at 04:48:47PM +0000, Christophe Leroy wrote:
> This patch adds the necessary glue to provide time namespaces.
> 
> Things are mainly copied from ARM64.
> 
> __arch_get_timens_vdso_data() calculates timens vdso data position
> based on the vdso data position, knowing it is the next page in vvar.
> This avoids having to redo the mflr/bcl/mflr/mtlr dance to locate
> the page relative to running code position.
>

Acked-by: Andrei Vagin <avagin at gmail.com>
 
> Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>