From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CE8AC00A89 for ; Fri, 30 Oct 2020 18:49:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1AD08206FA for ; Fri, 30 Oct 2020 18:49:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727261AbgJ3StV (ORCPT ); Fri, 30 Oct 2020 14:49:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725975AbgJ3StV (ORCPT ); Fri, 30 Oct 2020 14:49:21 -0400 Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [IPv6:2002:c35c:fd02::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8469AC0613CF; Fri, 30 Oct 2020 11:49:21 -0700 (PDT) Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYZSg-00CDdq-FN; Fri, 30 Oct 2020 18:49:18 +0000 Date: Fri, 30 Oct 2020 18:49:18 +0000 From: Al Viro To: Jens Axboe Cc: Qian Cai , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH -next] fs: Fix memory leaks in do_renameat2() error paths Message-ID: <20201030184918.GQ3576660@ZenIV.linux.org.uk> References: <20201030152407.43598-1-cai@redhat.com> <20201030184255.GP3576660@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: Al Viro Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 30, 2020 at 12:46:26PM -0600, Jens Axboe wrote: > See other reply, it's being posted soon, just haven't gotten there yet > and it wasn't ready. > > It's a prep patch so we can call do_renameat2 and pass in a filename > instead. The intent is not to have any functional changes in that prep > patch. But once we can pass in filenames instead of user pointers, it's > usable from io_uring. You do realize that pathname resolution is *NOT* offloadable to helper threads, I hope...