From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935689AbeE2OoH (ORCPT ); Tue, 29 May 2018 10:44:07 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:38089 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935576AbeE2Ony (ORCPT ); Tue, 29 May 2018 10:43:54 -0400 X-Google-Smtp-Source: ADUXVKJiMhRbbefCG1RSRVRdtnwves/SKI1YyEdLnfTMfMpiQOqSEsmA0g1nJvQmTxT3fE+H6cWUzw== From: Miklos Szeredi To: linux-unionfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 10/39] ovl: copy up inode flags Date: Tue, 29 May 2018 16:43:10 +0200 Message-Id: <20180529144339.16538-11-mszeredi@redhat.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180529144339.16538-1-mszeredi@redhat.com> References: <20180529144339.16538-1-mszeredi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On inode creation copy certain inode flags from the underlying real inode to the overlay inode. This is in preparation for moving overlay functionality out of the VFS. Signed-off-by: Miklos Szeredi --- fs/overlayfs/overlayfs.h | 7 +++++++ fs/overlayfs/util.c | 1 + 2 files changed, 8 insertions(+) diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index eeaad0710704..e9dab319c8b2 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -350,6 +350,13 @@ static inline void ovl_copyattr(struct inode *from, struct inode *to) to->i_ctime = from->i_ctime; } +static inline void ovl_copyflags(struct inode *from, struct inode *to) +{ + unsigned int mask = S_SYNC | S_IMMUTABLE | S_APPEND | S_NOATIME; + + inode_set_flags(to, from->i_flags & mask, mask); +} + /* dir.c */ extern const struct inode_operations ovl_dir_inode_operations; int ovl_cleanup_and_whiteout(struct dentry *workdir, struct inode *dir, diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 30a05d1d679d..25d202b47326 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -310,6 +310,7 @@ void ovl_inode_init(struct inode *inode, struct dentry *upperdentry, OVL_I(inode)->lower = igrab(d_inode(lowerdentry)); ovl_copyattr(realinode, inode); + ovl_copyflags(realinode, inode); if (!inode->i_ino) inode->i_ino = realinode->i_ino; } -- 2.14.3