Messages in this thread Patch in this message | | | From | Miklos Szeredi <> | Subject | [PATCH v2 07/35] ovl: copy up inode flags | Date | Mon, 7 May 2018 10:37:39 +0200 |
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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> --- 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
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