ovl: update ctime when changing fileattr

Currently we keep size, mode and times of overlay inode
as the same as upper inode, so should update ctime when
changing file attribution as well.

Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 8aa370e8143a750dcc241535bd92a6d48550d60e..7d52e5ef2ac74c2c23a82c46b94b2674a82bee3e 100644 (file)
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -573,6 +573,9 @@ int ovl_fileattr_set(struct user_namespace *mnt_userns,
                BUILD_BUG_ON(OVL_PROT_I_FLAGS_MASK & ~OVL_COPY_I_FLAGS_MASK);
                flags |= inode->i_flags & OVL_PROT_I_FLAGS_MASK;
                inode_set_flags(inode, flags, OVL_COPY_I_FLAGS_MASK);
+
+               /* Update ctime */
+               ovl_copyattr(ovl_inode_real(inode), inode);
        }
        ovl_drop_write(dentry);
 out: