33 	struct ovl_fs *ofs = OVL_FS(d->sb);  in ovl_check_redirect()  local
35 	buf = ovl_get_redirect_xattr(ofs, dentry, prelen + strlen(post));  in ovl_check_redirect()
108 static struct ovl_fh *ovl_get_fh(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_get_fh()  argument
115 	res = ovl_do_getxattr(ofs, dentry, ox, NULL, 0);  in ovl_get_fh()
129 	res = ovl_do_getxattr(ofs, dentry, ox, fh->buf, res);  in ovl_get_fh()
343 int ovl_check_origin_fh(struct ovl_fs *ofs, struct ovl_fh *fh, bool connected,  in ovl_check_origin_fh()  argument
349 	for (i = 1; i < ofs->numlayer; i++) {  in ovl_check_origin_fh()
354 		if (ofs->layers[i].fsid &&  in ovl_check_origin_fh()
355 		    ofs->layers[i].fs->bad_uuid)  in ovl_check_origin_fh()
358 		origin = ovl_decode_real_fh(fh, ofs->layers[i].mnt,  in ovl_check_origin_fh()
381 		.layer = &ofs->layers[i]  in ovl_check_origin_fh()
394 static int ovl_check_origin(struct ovl_fs *ofs, struct dentry *upperdentry,  in ovl_check_origin()  argument
397 	struct ovl_fh *fh = ovl_get_fh(ofs, upperdentry, OVL_XATTR_ORIGIN);  in ovl_check_origin()
403 	err = ovl_check_origin_fh(ofs, fh, false, upperdentry, stackp);  in ovl_check_origin()
419 static int ovl_verify_fh(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_verify_fh()  argument
422 	struct ovl_fh *ofh = ovl_get_fh(ofs, dentry, ox);  in ovl_verify_fh()
446 int ovl_verify_set_fh(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_verify_set_fh()  argument
461 	err = ovl_verify_fh(ofs, dentry, ox, fh);  in ovl_verify_set_fh()
463 		err = ovl_do_setxattr(ofs, dentry, ox, fh->buf, fh->fb.len);  in ovl_verify_set_fh()
480 struct dentry *ovl_index_upper(struct ovl_fs *ofs, struct dentry *index)  in ovl_index_upper()  argument
488 	fh = ovl_get_fh(ofs, index, OVL_XATTR_UPPER);  in ovl_index_upper()
492 	upper = ovl_decode_real_fh(fh, ovl_upper_mnt(ofs), true);  in ovl_index_upper()
513 int ovl_verify_index(struct ovl_fs *ofs, struct dentry *index)  in ovl_verify_index()  argument
555 	if (d_is_dir(index) && !ofs->config.nfs_export)  in ovl_verify_index()
565 	upper = ovl_index_upper(ofs, index);  in ovl_verify_index()
581 	err = ovl_verify_fh(ofs, upper, OVL_XATTR_ORIGIN, fh);  in ovl_verify_index()
588 		err = ovl_check_origin_fh(ofs, fh, false, index, &stack);  in ovl_verify_index()
592 		if (ovl_get_nlink(ofs, origin.dentry, index, 0) == 0)  in ovl_verify_index()
660 struct dentry *ovl_get_index_fh(struct ovl_fs *ofs, struct ovl_fh *fh)  in ovl_get_index_fh()  argument
670 	index = lookup_positive_unlocked(name.name, ofs->indexdir, name.len);  in ovl_get_index_fh()
689 struct dentry *ovl_lookup_index(struct ovl_fs *ofs, struct dentry *upper,  in ovl_lookup_index()  argument
702 	index = lookup_positive_unlocked(name.name, ofs->indexdir, name.len);  in ovl_lookup_index()
748 		err = ovl_verify_upper(ofs, index, upper, false);  in ovl_lookup_index()
797 static int ovl_fix_origin(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_fix_origin()  argument
802 	if (ovl_check_origin_xattr(ofs, upper))  in ovl_fix_origin()
822 	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;  in ovl_lookup()  local
843 		.last = ofs->config.redirect_follow ? false : !poe->numlower,  in ovl_lookup()
848 	if (dentry->d_name.len > ofs->namelen)  in ovl_lookup()
874 			err = ovl_check_origin(ofs, upperdentry, &origin_path);  in ovl_lookup()
895 		stack = kcalloc(ofs->numlayer - 1, sizeof(struct ovl_path),  in ovl_lookup()
904 		if (!ofs->config.redirect_follow)  in ovl_lookup()
916 		if ((uppermetacopy || d.metacopy) && !ofs->config.metacopy) {  in ovl_lookup()
927 		if (upperdentry && !ctr && !ofs->noxattr && d.is_dir) {  in ovl_lookup()
928 			err = ovl_fix_origin(ofs, dentry, this, upperdentry);  in ovl_lookup()
946 		     (!d.is_dir && ofs->config.index && origin_path))) {  in ovl_lookup()
947 			err = ovl_verify_origin(ofs, upperdentry, this, false);  in ovl_lookup()
983 		if (d.redirect && !ofs->config.redirect_follow) {  in ovl_lookup()
1045 		index = ovl_lookup_index(ofs, upperdentry, origin, true);  in ovl_lookup()
1068 		upperredirect = ovl_get_redirect_xattr(ofs, upperdentry, 0);  in ovl_lookup()
1074 		err = ovl_check_metacopy_xattr(ofs, upperdentry);  in ovl_lookup()