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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FFE8C433EF for ; Tue, 26 Apr 2022 04:29:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238178AbiDZEci (ORCPT ); Tue, 26 Apr 2022 00:32:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244116AbiDZEcf (ORCPT ); Tue, 26 Apr 2022 00:32:35 -0400 Received: from mail104.syd.optusnet.com.au (mail104.syd.optusnet.com.au [211.29.132.246]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7BB2A60DA9 for ; Mon, 25 Apr 2022 21:29:29 -0700 (PDT) Received: from dread.disaster.area (pa49-181-115-138.pa.nsw.optusnet.com.au [49.181.115.138]) by mail104.syd.optusnet.com.au (Postfix) with ESMTPS id 0F4345345E1; Tue, 26 Apr 2022 14:29:28 +1000 (AEST) Received: from dave by dread.disaster.area with local (Exim 4.92.3) (envelope-from ) id 1njCpL-004cf2-0S; Tue, 26 Apr 2022 14:29:27 +1000 Date: Tue, 26 Apr 2022 14:29:27 +1000 From: Dave Chinner To: "Darrick J. Wong" Cc: Eric Sandeen , Catherine Hoang , linux-xfs@vger.kernel.org Subject: Re: [PATCH v1 0/2] xfs: remove quota warning limits Message-ID: <20220426042927.GN1544202@dread.disaster.area> References: <20220421165815.87837-1-catherine.hoang@oracle.com> <43e8df67-5916-5f4a-ce85-8521729acbb2@sandeen.net> <20220425222140.GI1544202@dread.disaster.area> <20220426024331.GR17025@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220426024331.GR17025@magnolia> X-Optus-CM-Score: 0 X-Optus-CM-Analysis: v=2.4 cv=e9dl9Yl/ c=1 sm=1 tr=0 ts=62677528 a=/kVtbFzwtM2bJgxRVb+eeA==:117 a=/kVtbFzwtM2bJgxRVb+eeA==:17 a=kj9zAlcOel0A:10 a=z0gMJWrwH1QA:10 a=7-415B0cAAAA:8 a=KuIg5vS0DuhQU977sNcA:9 a=CjuIK1q_8ugA:10 a=biEYGPWJfzWAr4FL6Ov7:22 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org On Mon, Apr 25, 2022 at 07:43:31PM -0700, Darrick J. Wong wrote: [snip yukky stuff that makes Darrick's life hell :(] > That attr fork UAF thing -- adding smp_wmb/rmb made the symptoms go > away, but as I was writing up the commit message I realized that the > race window is still there. Maybe I'll come up with a way to make the > incore attr fork stick around, though both attempts so far have exploded > on impact. Can you post the patch so I can have a look at it? Cheers, Dave. -- Dave Chinner david@fromorbit.com