Re: [PATCH v6 07/18] arm64/mm: Convert READ_ONCE(*ptep) to ptep_get(ptep)

From: Catalin Marinas
Date: Thu Feb 15 2024 - 13:35:50 EST


On Thu, Feb 15, 2024 at 10:31:54AM +0000, Ryan Roberts wrote:
> There are a number of places in the arch code that read a pte by using
> the READ_ONCE() macro. Refactor these call sites to instead use the
> ptep_get() helper, which itself is a READ_ONCE(). Generated code should
> be the same.
>
> This will benefit us when we shortly introduce the transparent contpte
> support. In this case, ptep_get() will become more complex so we now
> have all the code abstracted through it.
>
> Tested-by: John Hubbard <jhubbard@xxxxxxxxxx>
> Signed-off-by: Ryan Roberts <ryan.roberts@xxxxxxx>

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>