From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) by kanga.kvack.org (Postfix) with ESMTP id 22D038E0001 for ; Thu, 27 Sep 2018 15:38:32 -0400 (EDT) Received: by mail-pf1-f200.google.com with SMTP id i68-v6so4217685pfb.9 for ; Thu, 27 Sep 2018 12:38:32 -0700 (PDT) Received: from out30-130.freemail.mail.aliyun.com (out30-130.freemail.mail.aliyun.com. [115.124.30.130]) by mx.google.com with ESMTPS id i13-v6si2534924pgo.128.2018.09.27.12.38.29 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Sep 2018 12:38:30 -0700 (PDT) From: Yang Shi Subject: [PATCH] mm: dax: add comment for PFN_SPECIAL Date: Fri, 28 Sep 2018 03:38:09 +0800 Message-Id: <1538077089-14550-1-git-send-email-yang.shi@linux.alibaba.com> Sender: owner-linux-mm@kvack.org List-ID: To: dan.j.williams@intel.com, akpm@linux-foundation.org Cc: yang.shi@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org The comment for PFN_SPECIAL is missed in pfn_t.h. Add comment to get consistent with other pfn flags. Cc: Dan Williams Signed-off-by: Yang Shi --- include/linux/pfn_t.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h index 21713dc..d2e5dd4 100644 --- a/include/linux/pfn_t.h +++ b/include/linux/pfn_t.h @@ -9,6 +9,7 @@ * PFN_SG_LAST - pfn references a page and is the last scatterlist entry * PFN_DEV - pfn is not covered by system memmap by default * PFN_MAP - pfn has a dynamic page mapping established by a device driver + * PFN_SPECIAL - indicates that _PAGE_SPECIAL should be used for DAX ptes */ #define PFN_FLAGS_MASK (((u64) ~PAGE_MASK) << (BITS_PER_LONG_LONG - PAGE_SHIFT)) #define PFN_SG_CHAIN (1ULL << (BITS_PER_LONG_LONG - 1)) -- 1.8.3.1