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[216.228.121.65]) by mx.google.com with ESMTPS id e131si5739800ywb.406.2019.07.29.16.29.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Jul 2019 16:29:58 -0700 (PDT) Received-SPF: pass (google.com: domain of rcampbell@nvidia.com designates 216.228.121.65 as permitted sender) client-ip=216.228.121.65; Authentication-Results: mx.google.com; dkim=pass header.i=@nvidia.com header.s=n1 header.b=jjOqVbu0; spf=pass (google.com: domain of rcampbell@nvidia.com designates 216.228.121.65 as permitted sender) smtp.mailfrom=rcampbell@nvidia.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 29 Jul 2019 16:29:57 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Mon, 29 Jul 2019 16:29:57 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Mon, 29 Jul 2019 16:29:57 -0700 Received: from rcampbell-dev.nvidia.com (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 29 Jul 2019 23:29:55 +0000 Subject: Re: [PATCH 7/9] mm: remove the unused MIGRATE_PFN_ERROR flag To: Christoph Hellwig , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Jason Gunthorpe , Ben Skeggs CC: Bharata B Rao , Andrew Morton , , , , References: <20190729142843.22320-1-hch@lst.de> <20190729142843.22320-8-hch@lst.de> X-Nvconfidentiality: public From: Ralph Campbell Message-ID: <32f08aa4-c9a3-9545-69aa-2cc3695e15df@nvidia.com> Date: Mon, 29 Jul 2019 16:29:55 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190729142843.22320-8-hch@lst.de> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1564442997; bh=0+thxvZnJ+gcbF/O0zGGEBA6QvsuJ+b1Oc5FzJoq0pI=; h=X-PGP-Universal:Subject:To:CC:References:X-Nvconfidentiality:From: Message-ID:Date:User-Agent:MIME-Version:In-Reply-To: X-Originating-IP:X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=jjOqVbu0SE9IxctyMwqyl6NjiHxbcjJTt/QVPTeHFWZn91g7rXHLoSsXIJCkRMepQ 4RDY3eiq+JBeMQ2R9fiv8HeECvSmM4knWmk7sjO4TB+BOlqd8o0nizQlMk7DYq6sLe +sqF9pqPZKgpUwuguZXMwVmav3HEr6qCsATcyT863EyZfvbK1jjnL6yqbPEQd9ijjJ ydsHBn1jU60iHnXNioMmy0fn3Po4Y09SrgrhUiGTMRt6lWOqkn7isWclIxYgC0avDf v8q4S08zaE3ikIRtGMn7WjLZkqBtGEBL5IeWH0mes0o8HnufoNHBj4X8jpeZ1nRHSl igU0UgPAUNzQQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 7/29/19 7:28 AM, Christoph Hellwig wrote: > We don't use this flag anymore, so remove it. > > Signed-off-by: Christoph Hellwig Reviewed-by: Ralph Campbell > --- > include/linux/migrate.h | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/include/linux/migrate.h b/include/linux/migrate.h > index 093d67fcf6dd..229153c2c496 100644 > --- a/include/linux/migrate.h > +++ b/include/linux/migrate.h > @@ -167,7 +167,6 @@ static inline int migrate_misplaced_transhuge_page(struct mm_struct *mm, > #define MIGRATE_PFN_LOCKED (1UL << 2) > #define MIGRATE_PFN_WRITE (1UL << 3) > #define MIGRATE_PFN_DEVICE (1UL << 4) > -#define MIGRATE_PFN_ERROR (1UL << 5) > #define MIGRATE_PFN_SHIFT 6 The MIGRATE_PFN_SHIFT could be reduced to 5 since it is only used to make room for the flags. > static inline struct page *migrate_pfn_to_page(unsigned long mpfn) >