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

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Message-ID: <4a20d826-af0f-0d2c-162e-8797c2603ab1@arm.com>
Date:   Fri, 24 Jun 2022 11:39:46 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     linux-mm@...ck.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 6/24/22 10:39, Christoph Hellwig wrote:
> 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.

I guess <linux/pgtable.h> should be better ?