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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 B2882C43216 for ; Fri, 20 Aug 2021 16:39:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5EBE461152 for ; Fri, 20 Aug 2021 16:39:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5EBE461152 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 0C2576B0073; Fri, 20 Aug 2021 12:39:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 072536B0074; Fri, 20 Aug 2021 12:39:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E7DF28D0001; Fri, 20 Aug 2021 12:39:24 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id C364C6B0073 for ; Fri, 20 Aug 2021 12:39:24 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 61BA81813BCFB for ; Fri, 20 Aug 2021 16:39:24 +0000 (UTC) X-FDA: 78496019448.18.5508733 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf20.hostedemail.com (Postfix) with ESMTP id 221D6D0000AD for ; Fri, 20 Aug 2021 16:39:24 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id DCCF86113B; Fri, 20 Aug 2021 16:39:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629477563; bh=AQp3LFjVqKf+6JCOVIRxYIEow6Xf7ZVVgy0fQLP+rqs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=klDFyswU0boWi00o6qUlSahmi0csj5mCM8t6hXOT7WFWvkJjCI6/fvT1e4LIFg+NP w/gpXH6t+ho1dN5rgnSMFVG+KtnPoF8x4gevB5zkkcihq3FHZF/ZfUuTG8Qf6bUtRd M2glGFTawn8h9sJkUXKrUPfGky7SfkCm5IwBFI1Mq5KdPAvdzQX9HM2TZ38hJvLjCl IE7V1B/lQuQZB4UPlh74b1BoESZKCKEZwDeZaa2Y/+CTZlxXGYOz5neUK16BiA0UGF b86XwnJO1mYOUZxuUhjWwm8TAVr8x3pW64Scv4WrEGwmZEf5xwGhO82Adjj5g1SNzs IoMprsQc5PY2g== From: Jeff Layton To: torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ebiederm@xmission.com, david@redhat.com, willy@infradead.org, linux-nfs@vger.kernel.org, viro@zeniv.linux.org.uk, linux-doc@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-afs@lists.infradead.org, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org, akpm@linux-foundation.org, luto@kernel.org, bfields@fieldses.org, rostedt@goodmis.org, stable@vger.kernel.org Subject: [PATCH v3 1/2] fs: warn about impending deprecation of mandatory locks Date: Fri, 20 Aug 2021 12:39:18 -0400 Message-Id: <20210820163919.435135-2-jlayton@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210820163919.435135-1-jlayton@kernel.org> References: <20210820163919.435135-1-jlayton@kernel.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: 221D6D0000AD Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=klDFyswU; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf20.hostedemail.com: domain of jlayton@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=jlayton@kernel.org X-Rspamd-Server: rspam04 X-Stat-Signature: tgqgoxtpxkumpwshxgpeu5d3jqmp8xt8 X-HE-Tag: 1629477564-560969 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: We've had CONFIG_MANDATORY_FILE_LOCKING since 2015 and a lot of distros have disabled it. Warn the stragglers that still use "-o mand" that we'll be dropping support for that mount option. Cc: stable@vger.kernel.org Signed-off-by: Jeff Layton --- fs/namespace.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/namespace.c b/fs/namespace.c index ab4174a3c802..2279473d0d6f 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1716,8 +1716,12 @@ static inline bool may_mount(void) } =20 #ifdef CONFIG_MANDATORY_FILE_LOCKING -static inline bool may_mandlock(void) +static bool may_mandlock(void) { + pr_warn_once("=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D\n" + "WARNING: the mand mount option is being deprecated and\n" + " will be removed in v5.15!\n" + "=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D\n"); return capable(CAP_SYS_ADMIN); } #else --=20 2.31.1