linux-kernel - Re: [PATCH V2] mm: Generalize HUGETLB_PAGE_SIZE

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Date:   Tue, 2 Mar 2021 08:09:32 +0100
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Anshuman Khandual <anshuman.khandual@....com>, linux-mm@...ck.org
Cc:     linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linuxppc-dev@...ts.ozlabs.org, Christoph Hellwig <hch@....de>
Subject: Re: [PATCH V2] mm: Generalize HUGETLB_PAGE_SIZE_VARIABLE



Le 02/03/2021 à 07:37, Anshuman Khandual a écrit :
> 
> 
> On 3/2/21 11:13 AM, Christophe Leroy wrote:
>>
>>
>> Le 02/03/2021 à 06:13, Anshuman Khandual a écrit :
>>> HUGETLB_PAGE_SIZE_VARIABLE need not be defined for each individual
>>> platform subscribing it. Instead just make it generic.
>>>
>>> Cc: Michael Ellerman <mpe@...erman.id.au>
>>> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>>> Cc: Paul Mackerras <paulus@...ba.org>
>>> Cc: Andrew Morton <akpm@...ux-foundation.org>
>>> Cc: Christoph Hellwig <hch@....de>
>>> Cc: linux-ia64@...r.kernel.org
>>> Cc: linuxppc-dev@...ts.ozlabs.org
>>> Cc: linux-mm@...ck.org
>>> Cc: linux-kernel@...r.kernel.org
>>> Suggested-by: Christoph Hellwig <hch@....de>
>>> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
>>> ---
>>> This change was originally suggested in an earilier discussion. This
>>> applies on v5.12-rc1 and has been build tested on all applicable
>>> platforms i.e ia64 and powerpc.
>>>
>>> https://patchwork.kernel.org/project/linux-mm/patch/1613024531-19040-3-git-send-email-anshuman.khandual@arm.com/
>>>
>>> Changes in V2:
>>>
>>> - Added a description for HUGETLB_PAGE_SIZE_VARIABLE
>>
>> You are doing more than adding a description: you are making it user selectable. Is that what you want ?
> 
> No, this was unintended. Will drop that description.
> 

The description in the help section is OK.

It is only the text after the "bool" that makes it selectable.

	bool "Allows dynamic pageblock_order"