From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760973AbcALDlb (ORCPT ); Mon, 11 Jan 2016 22:41:31 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:6306 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757791AbcALDl3 (ORCPT ); Mon, 11 Jan 2016 22:41:29 -0500 From: To: Alexander Viro , Matthew Wilcox , , CC: , , chenjie , Subject: [PATCH] bugfix dax fault page should be no cache Date: Tue, 12 Jan 2016 19:43:45 +0800 Message-ID: <1452599025-25489-1-git-send-email-chenjie6@huawei.com> X-Mailer: git-send-email 1.8.0 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.54.28] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.569475BD.00EF,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: d159e79218631b5d1bcb68df7b95f67f Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: chenjie We show the pte: *pte=01600000159c8fd3 The page should be no_cache attr,it will be better. Cc: Signed-off-by: chenjie --- fs/dax.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/dax.c b/fs/dax.c index 43671b6..179ced6 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -328,6 +328,8 @@ static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh, wmb_pmem(); } + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + error = vm_insert_mixed(vma, vaddr, pfn); out: -- 1.8.0