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[209.85.220.65]) by mx.google.com with SMTPS id v15-v6sor5847824pff.49.2018.05.21.08.21.07 for (Google Transport Security); Mon, 21 May 2018 08:21:07 -0700 (PDT) Received-SPF: pass (google.com: domain of yehs2007@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=Qcd/9+PX; spf=pass (google.com: domain of yehs2007@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=yehs2007@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=SUiCWouVd2T3gM8xCB5UBKbjkUCyzntvXUY+hRFZOzw=; b=Qcd/9+PX5GEKxXf4ulYBEbz/WNlKjuWMA+tQvUuAa2sMvnZrzVmxGRTnaZVz0HEKLJ O9BZoKXRm/jl5nlHVkEuWe0UypewsmVaBEFdPv4SR6Nueqot4J1g9uhWEpMeo3FcbBMC lUZChhyxd12ldI3Y6FtxiuiiNEDq2KfGyfD3c7y6b/SMMHyL6YnbK0v3ylZMJDBiB7wP tdNbgCXyVokWuYXOHPfbGWU5xq2rJEPjWvlvlQY9hjbW6m0SLjhAaudmCB7+WRkLIQaD TM5qZyURcVKZpiAWfs6e8QCKSOGUA03GbYZOr20H6V9R7wGUP/3uomeWECcbjaKO1yWF mJYw== X-Google-Smtp-Source: AB8JxZr0bb5Au61as90Ksqt6nlcN/jKlSrhahAU776NC8bZZK4XJ8qQOKGsXbGIUqWh6DmAr1YNTxg== X-Received: by 2002:a62:91b:: with SMTP id e27-v6mr20375464pfd.93.1526916067112; Mon, 21 May 2018 08:21:07 -0700 (PDT) Received: from localhost.localdomain ([125.33.105.40]) by smtp.gmail.com with ESMTPSA id t14-v6sm30844344pfh.109.2018.05.21.08.21.02 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 May 2018 08:21:06 -0700 (PDT) From: Huaisheng Ye To: akpm@linux-foundation.org, linux-mm@kvack.org Cc: mhocko@suse.com, willy@infradead.org, vbabka@suse.cz, mgorman@techsingularity.net, kstewart@linuxfoundation.org, alexander.levin@verizon.com, gregkh@linuxfoundation.org, colyli@suse.de, chengnt@lenovo.com, hehy1@lenovo.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-btrfs@vger.kernel.org, Huaisheng Ye , Christoph Hellwig , Marek Szyprowski , Robin Murphy Subject: [RFC PATCH v2 05/12] include/linux/dma-mapping: update usage of address zone modifiers Date: Mon, 21 May 2018 23:20:26 +0800 Message-Id: <1526916033-4877-6-git-send-email-yehs2007@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1526916033-4877-1-git-send-email-yehs2007@gmail.com> References: <1526916033-4877-1-git-send-email-yehs2007@gmail.com> 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: X-Virus-Scanned: ClamAV using ClamSMTP From: Huaisheng Ye Use __GFP_ZONE_MASK to replace (__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32). ___GFP_DMA, ___GFP_HIGHMEM and ___GFP_DMA32 have been deleted from GFP bitmasks, the bottom three bits of GFP mask is reserved for storing encoded zone number. __GFP_DMA, __GFP_HIGHMEM and __GFP_DMA32 should not be operated with each others by OR. Signed-off-by: Huaisheng Ye Cc: Christoph Hellwig Cc: Marek Szyprowski Cc: Robin Murphy --- include/linux/dma-mapping.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index eb9eab4..3da0293 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -523,7 +523,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size, * decide on the way of zeroing the memory given that the memory * returned should always be zeroed. */ - flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM | __GFP_ZERO); + flag &= ~(__GFP_ZONE_MASK | __GFP_ZERO); if (!arch_dma_alloc_attrs(&dev, &flag)) return NULL;