From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934826AbcIPMVt (ORCPT ); Fri, 16 Sep 2016 08:21:49 -0400 Received: from mail-wm0-f43.google.com ([74.125.82.43]:36860 "EHLO mail-wm0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934876AbcIPMTq (ORCPT ); Fri, 16 Sep 2016 08:19:46 -0400 From: Miklos Szeredi To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Al Viro Subject: [PATCH 06/12] vfs: make argument of d_real_inode() const Date: Fri, 16 Sep 2016 14:19:25 +0200 Message-Id: <1474028371-21288-7-git-send-email-mszeredi@redhat.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1474028371-21288-1-git-send-email-mszeredi@redhat.com> References: <1474028371-21288-1-git-send-email-mszeredi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org d_op->d_real() leaves the dentry alone except if the third argument is non-zero. Unfortunately very difficult to explain to the compiler without a cast. Signed-off-by: Miklos Szeredi Acked-by: Jeff Layton --- include/linux/dcache.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 5ff3e9a4fe5f..5beed7b30561 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -584,9 +584,10 @@ static inline struct dentry *d_real(struct dentry *dentry, * If dentry is on an union/overlay, then return the underlying, real inode. * Otherwise return d_inode(). */ -static inline struct inode *d_real_inode(struct dentry *dentry) +static inline struct inode *d_real_inode(const struct dentry *dentry) { - return d_backing_inode(d_real(dentry, NULL, 0)); + /* This usage of d_real() results in const dentry */ + return d_backing_inode(d_real((struct dentry *) dentry, NULL, 0)); } -- 2.5.5