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
114 	res = ovl_do_getxattr(ofs, dentry, ox, NULL, 0);  in ovl_get_fh()
128 	res = ovl_do_getxattr(ofs, dentry, ox, fh->buf, res);  in ovl_get_fh()
342 int ovl_check_origin_fh(struct ovl_fs *ofs, struct ovl_fh *fh, bool connected,  in ovl_check_origin_fh()  argument
348 	for (i = 1; i < ofs->numlayer; i++) {  in ovl_check_origin_fh()
353 		if (ofs->layers[i].fsid &&  in ovl_check_origin_fh()
354 		    ofs->layers[i].fs->bad_uuid)  in ovl_check_origin_fh()
357 		origin = ovl_decode_real_fh(fh, ofs->layers[i].mnt,  in ovl_check_origin_fh()
380 		.layer = &ofs->layers[i]  in ovl_check_origin_fh()
393 static int ovl_check_origin(struct ovl_fs *ofs, struct dentry *upperdentry,  in ovl_check_origin()  argument
396 	struct ovl_fh *fh = ovl_get_fh(ofs, upperdentry, OVL_XATTR_ORIGIN);  in ovl_check_origin()
402 	err = ovl_check_origin_fh(ofs, fh, false, upperdentry, stackp);  in ovl_check_origin()
418 static int ovl_verify_fh(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_verify_fh()  argument
421 	struct ovl_fh *ofh = ovl_get_fh(ofs, dentry, ox);  in ovl_verify_fh()
445 int ovl_verify_set_fh(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_verify_set_fh()  argument
460 	err = ovl_verify_fh(ofs, dentry, ox, fh);  in ovl_verify_set_fh()
462 		err = ovl_do_setxattr(ofs, dentry, ox, fh->buf, fh->fb.len);  in ovl_verify_set_fh()
479 struct dentry *ovl_index_upper(struct ovl_fs *ofs, struct dentry *index)  in ovl_index_upper()  argument
487 	fh = ovl_get_fh(ofs, index, OVL_XATTR_UPPER);  in ovl_index_upper()
491 	upper = ovl_decode_real_fh(fh, ovl_upper_mnt(ofs), true);  in ovl_index_upper()
512 int ovl_verify_index(struct ovl_fs *ofs, struct dentry *index)  in ovl_verify_index()  argument
554 	if (d_is_dir(index) && !ofs->config.nfs_export)  in ovl_verify_index()
564 	upper = ovl_index_upper(ofs, index);  in ovl_verify_index()
580 	err = ovl_verify_fh(ofs, upper, OVL_XATTR_ORIGIN, fh);  in ovl_verify_index()
587 		err = ovl_check_origin_fh(ofs, fh, false, index, &stack);  in ovl_verify_index()
591 		if (ovl_get_nlink(ofs, origin.dentry, index, 0) == 0)  in ovl_verify_index()
659 struct dentry *ovl_get_index_fh(struct ovl_fs *ofs, struct ovl_fh *fh)  in ovl_get_index_fh()  argument
669 	index = lookup_positive_unlocked(name.name, ofs->indexdir, name.len);  in ovl_get_index_fh()
688 struct dentry *ovl_lookup_index(struct ovl_fs *ofs, struct dentry *upper,  in ovl_lookup_index()  argument
701 	index = lookup_positive_unlocked(name.name, ofs->indexdir, name.len);  in ovl_lookup_index()
747 		err = ovl_verify_upper(ofs, index, upper, false);  in ovl_lookup_index()
796 static int ovl_fix_origin(struct ovl_fs *ofs, struct dentry *dentry,  in ovl_fix_origin()  argument
801 	if (ovl_check_origin_xattr(ofs, upper))  in ovl_fix_origin()
821 	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;  in ovl_lookup()  local
842 		.last = ofs->config.redirect_follow ? false : !poe->numlower,  in ovl_lookup()
847 	if (dentry->d_name.len > ofs->namelen)  in ovl_lookup()
873 			err = ovl_check_origin(ofs, upperdentry, &origin_path);  in ovl_lookup()
894 		stack = kcalloc(ofs->numlayer - 1, sizeof(struct ovl_path),  in ovl_lookup()
903 		if (!ofs->config.redirect_follow)  in ovl_lookup()
915 		if ((uppermetacopy || d.metacopy) && !ofs->config.metacopy) {  in ovl_lookup()
926 		if (upperdentry && !ctr && !ofs->noxattr && d.is_dir) {  in ovl_lookup()
927 			err = ovl_fix_origin(ofs, dentry, this, upperdentry);  in ovl_lookup()
945 		     (!d.is_dir && ofs->config.index && origin_path))) {  in ovl_lookup()
946 			err = ovl_verify_origin(ofs, upperdentry, this, false);  in ovl_lookup()
982 		if (d.redirect && !ofs->config.redirect_follow) {  in ovl_lookup()
1046 		index = ovl_lookup_index(ofs, upperdentry, origin, true);  in ovl_lookup()
1069 		upperredirect = ovl_get_redirect_xattr(ofs, upperdentry, 0);  in ovl_lookup()
1075 		err = ovl_check_metacopy_xattr(ofs, upperdentry);  in ovl_lookup()