Re: [PATCH v4 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid()
From: Kefeng Wang <hidden>
Date: 2021-05-12 03:13:34
Also in:
kvmarm, linux-mm, lkml
On 2021/5/11 18:05, Mike Rapoport wrote:
From: Mike Rapoport <redacted> Hi, These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire pfn_valid_within() to 1. The idea is to mark NOMAP pages as reserved in the memory map and restore the intended semantics of pfn_valid() to designate availability of struct page for a pfn. With this the core mm will be able to cope with the fact that it cannot use NOMAP pages and the holes created by NOMAP ranges within MAX_ORDER blocks will be treated correctly even without the need for pfn_valid_within. The patches are boot tested on qemu-system-aarch64. I beleive it would be best to route these via mmotm tree.
Reviewed-by: Kefeng Wang <redacted> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel