Re: [PATCH 05/28] arm64: vdso: Use only one single vvar mapping

On Thu, Oct 10, 2024 at 09:01:07AM +0200, Thomas Weißschuh wrote:

The vvar mapping is the same for all processes. Use a single mapping to
simplify the logic and align it with the other architectures.

In addition this will enable the move of the vvar handling into generic code.

Signed-off-by: Thomas Weißschuh <redacted>
---
 arch/arm64/kernel/vdso.c | 43 +++++++++++++------------------------------
 1 file changed, 13 insertions(+), 30 deletions(-)

I took this for a spin in qemu to double-check that compat and native
tasks can peacefully co-exist while using the vDSO. It all seems ok, so:

Acked-by: Will Deacon <will@kernel.org>
Tested-by: Will Deacon <will@kernel.org>

Will