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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 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 E8727C432BE for ; Fri, 20 Aug 2021 16:08:59 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 725DE61220 for ; Fri, 20 Aug 2021 16:08:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 725DE61220 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 158918D0005; Fri, 20 Aug 2021 12:08:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 109568D0001; Fri, 20 Aug 2021 12:08:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 01EEB8D0005; Fri, 20 Aug 2021 12:08:58 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0116.hostedemail.com [216.40.44.116]) by kanga.kvack.org (Postfix) with ESMTP id DCAA88D0001 for ; Fri, 20 Aug 2021 12:08:58 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 916601802959E for ; Fri, 20 Aug 2021 16:08:58 +0000 (UTC) X-FDA: 78495942756.22.72B7DA8 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf28.hostedemail.com (Postfix) with ESMTP id 35A3C90000AF for ; Fri, 20 Aug 2021 16:08:58 +0000 (UTC) Received: from oasis.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8898D61213; Fri, 20 Aug 2021 16:08:55 +0000 (UTC) Date: Fri, 20 Aug 2021 12:08:48 -0400 From: Steven Rostedt To: David Hildenbrand Cc: Jeff Layton , torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, ebiederm@xmission.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, w@1wt.eu, stable@vger.kernel.org Subject: Re: [PATCH v2 1/2] fs: warn about impending deprecation of mandatory locks Message-ID: <20210820120848.5692d25a@oasis.local.home> In-Reply-To: <0f4f3e65-1d2d-e512-2a6f-d7d63effc479@redhat.com> References: <20210820135707.171001-1-jlayton@kernel.org> <20210820135707.171001-2-jlayton@kernel.org> <0f4f3e65-1d2d-e512-2a6f-d7d63effc479@redhat.com> X-Mailer: Claws Mail 3.18.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Authentication-Results: imf28.hostedemail.com; dkim=none; spf=pass (imf28.hostedemail.com: domain of "SRS0=Q8y1=NL=goodmis.org=rostedt@kernel.org" designates 198.145.29.99 as permitted sender) smtp.mailfrom="SRS0=Q8y1=NL=goodmis.org=rostedt@kernel.org"; dmarc=none X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 35A3C90000AF X-Stat-Signature: mrpewzijzeup7roabtkeuq36bejnzxxx X-HE-Tag: 1629475738-75971 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: On Fri, 20 Aug 2021 17:52:19 +0200 David Hildenbrand wrote: > > +static bool warned_mand; > > static inline bool may_mandlock(void) > > { > > + if (!warned_mand) { > > + warned_mand = true; > > + pr_warn("======================================================\n"); > > + pr_warn("WARNING: the mand mount option is being deprecated and\n"); > > + pr_warn(" will be removed in v5.15!\n"); > > + pr_warn("======================================================\n"); > > + } > > Is there a reason not to use pr_warn_once() ? You would need a single call though, otherwise each pr_warn_once() would have its own state that it warned once. const char warning[] = "======================================================\n" "WARNING: the mand mount option is being deprecated and\n" " will be removed in v5.15!\n" "======================================================\n"; pr_warn_once(warning); -- Steve