OVL_XATTR_IMPURE 283 fs/overlayfs/overlayfs.h return ovl_check_dir_xattr(dentry, OVL_XATTR_IMPURE); OVL_XATTR_IMPURE 627 fs/overlayfs/readdir.c OVL_XATTR_IMPURE); OVL_XATTR_IMPURE 598 fs/overlayfs/util.c err = ovl_check_setxattr(dentry, upperdentry, OVL_XATTR_IMPURE,