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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 84269C3A5A7 for ; Tue, 3 Sep 2019 13:50:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 51B8E23711 for ; Tue, 3 Sep 2019 13:50:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="tTKvxXx1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729327AbfICNuZ (ORCPT ); Tue, 3 Sep 2019 09:50:25 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:38396 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728679AbfICNuZ (ORCPT ); Tue, 3 Sep 2019 09:50:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=qAvvvTd/kG24q/y3ajQFQZLkXwSn6IFFif86NAbeoXA=; b=tTKvxXx15sgkgyowmyu2biBee jd97cdn7jtEzlUV8Y2AJ9nKvpEci1B2v5YXfCWKmEOF1HzgR/Tp8B3bJ22mEoFHrhJNqIOA2uqYUe kCdaddNGAShMcg8n7+w97paoSFHWSzDlOhLBNg3G7A1t5B0/A9HOXHynLh0ew/QOdi32UT6BNIAQV n4yv5lJrxW2kDyJhXCQ8t/qYrq5YzdGiEtxe63iqZYf0DAPCU7N39qKuFkDeALYtXZKmB8c8b2ogE 0SzGFHlclZbnfFP8QviIpGO4kVvlGnaEyyzmAt6mZKz64bexoz6sbREJcdFRfhUCQhcxvCOVPUr2e TIw42cing==; Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1i59CS-0003Rw-6p; Tue, 03 Sep 2019 13:50:24 +0000 Date: Tue, 3 Sep 2019 06:50:24 -0700 From: Christoph Hellwig To: Al Viro Cc: Christoph Hellwig , Qian Cai , linux-fsdevel@vger.kernel.org, LKML Subject: Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic Message-ID: <20190903135024.GA8274@infradead.org> References: <7C6CCE98-1E22-433C-BF70-A3CBCDED4635@lca.pw> <20190903123719.GF1131@ZenIV.linux.org.uk> <20190903130456.GA9567@infradead.org> <20190903134832.GH1131@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190903134832.GH1131@ZenIV.linux.org.uk> User-Agent: Mutt/1.11.4 (2019-03-13) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 03, 2019 at 02:48:32PM +0100, Al Viro wrote: > Not sure what would be the best way to do it... I don't mind breaking > the out-of-tree modules, whatever their license is; what I would rather > avoid is _quiet_ breaking of such. Any out of tree module running against an upstream kernel will need a recompile for a new version anyway. So I would not worry about it at all.