linux-kernel - Re: [PATCH V4 02/26] mm/mmap: Define DECLARE_VM_GET_PAGE

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Message-ID: <YrVHEw6bjUf62Eh5@infradead.org>
Date:   Thu, 23 Jun 2022 22:09:39 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Anshuman Khandual <anshuman.khandual@....com>
Cc:     linux-mm@...ck.org, hch@...radead.org, christophe.leroy@...roup.eu,
        Andrew Morton <akpm@...ux-foundation.org>,
        linuxppc-dev@...ts.ozlabs.org, sparclinux@...r.kernel.org,
        x86@...nel.org, openrisc@...ts.librecores.org,
        linux-xtensa@...ux-xtensa.org, linux-csky@...r.kernel.org,
        linux-hexagon@...r.kernel.org, linux-parisc@...r.kernel.org,
        linux-alpha@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-s390@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-snps-arc@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-um@...ts.infradead.org,
        linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 02/26] mm/mmap: Define DECLARE_VM_GET_PAGE_PROT

On Fri, Jun 24, 2022 at 10:13:15AM +0530, Anshuman Khandual wrote:
> This just converts the generic vm_get_page_prot() implementation into a new
> macro i.e DECLARE_VM_GET_PAGE_PROT which later can be used across platforms
> when enabling them with ARCH_HAS_VM_GET_PAGE_PROT. This does not create any
> functional change.

mm.h is a huhe header included by almost everything in the kernel.
I'd rather have it in something only included in a few files.  If we
can't find anything suitable it might be worth to add a header just
for this even.