linux-kernel - Re: [PATCH 12/14] loongarch: drop definition of PGD

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Message-ID: <aa74c870-e4e9-a2aa-ddae-91cce62a3fe5@xen0n.name>
Date:   Mon, 4 Jul 2022 11:57:28 +0800
From:   WANG Xuerui <kernel@...0n.name>
To:     Matthew Wilcox <willy@...radead.org>,
        Mike Rapoport <rppt@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Dinh Nguyen <dinguyen@...nel.org>, Guo Ren <guoren@...nel.org>,
        Helge Deller <deller@....de>,
        Huacai Chen <chenhuacai@...nel.org>,
        "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        WANG Xuerui <kernel@...0n.name>, linux-arch@...r.kernel.org,
        linux-csky@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-mm@...ck.org,
        linux-parisc@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
        loongarch@...ts.linux.dev
Subject: Re: [PATCH 12/14] loongarch: drop definition of PGD_ORDER


On 2022/7/4 04:50, Matthew Wilcox wrote:
> On Sun, Jul 03, 2022 at 05:12:01PM +0300, Mike Rapoport wrote:
>> +++ b/arch/loongarch/kernel/asm-offsets.c
>> @@ -190,7 +190,6 @@ void output_mm_defines(void)
>>   #endif
>>   	DEFINE(_PTE_T_LOG2, PTE_T_LOG2);
>>   	BLANK();
>> -	DEFINE(_PGD_ORDER, PGD_ORDER);
>>   	BLANK();
>>   	DEFINE(_PMD_SHIFT, PMD_SHIFT);
>>   	DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT);
> Should probably also drop one of these BLANK() lines too?
>
Agreed; IMO the blank lines can and should be removed because the 
surrounding lines are also mm definitions.