From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f193.google.com ([209.85.128.193]:43923 "EHLO mail-wr0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752087AbeEGIiV (ORCPT ); Mon, 7 May 2018 04:38:21 -0400 Received: by mail-wr0-f193.google.com with SMTP id v15-v6so27834351wrm.10 for ; Mon, 07 May 2018 01:38:21 -0700 (PDT) From: Miklos Szeredi To: linux-unionfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 07/35] ovl: copy up inode flags Date: Mon, 7 May 2018 10:37:39 +0200 Message-Id: <20180507083807.28792-8-mszeredi@redhat.com> In-Reply-To: <20180507083807.28792-1-mszeredi@redhat.com> References: <20180507083807.28792-1-mszeredi@redhat.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: 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 271561fa7882..4e26778774c3 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; struct dentry *ovl_lookup_temp(struct dentry *workdir); 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