Re: [PATCH v2 2/3] mm: drop pte_clear_not_present_full()

Lance Yang <[email protected]> Tue, 30 Jun 2026 20:38:04 +0800
Newsgroups org.kernel.vger.sparclinux,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID <[email protected]>
On Mon, Jun 29, 2026 at 03:49:48PM +0200, David Hildenbrand (Arm) wrote:
>In general, there is no good reason to do anything special when clearing
>non-present PTEs.
>
>In theory, HW that does have to invalidate TLBs for non-present PTEs could
>benefit from a "full" parameter, but fortunately
>pte_clear_not_present_full() is not wired up anymore ... and there would
>have to be something very convincing for us to care about that to re-add
>it.
>
>So, let's just use pte_clear() directly now. To avoid the compiler
>complaining on some configs about unused "addr" parameter, silence that
>here.
>
>Reviewed-by: Oscar Salvador (SUSE) <[email protected]>
>Signed-off-by: David Hildenbrand (Arm) <[email protected]>
>---

With the sparc64 override gone, pte_clear_not_present_full() is just
pte_clear() :)

LGTM. Feel free to add:

Reviewed-by: Lance Yang <[email protected]>