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| author | Miklos Szeredi <mszeredi@redhat.com> | 2018-07-18 15:44:41 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-07-18 15:44:41 +0200 |
| commit | 4f3572954a9d4cbf992072713af284d990b65d87 (patch) | |
| tree | d83d72a2c9d7ce17857631ab07cd53d68e874fc9 /fs/overlayfs | |
| parent | d9854c87f0ed1a5f32fec24bb5b5fb426ad79c26 (diff) | |
ovl: copy up inode flags
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 <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 7 | ||||
| -rw-r--r-- | fs/overlayfs/util.c | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 008420e834d8..25cf26e57cdb 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; } |