From patchwork Wed Sep 13 11:09:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13382840 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 34BFCCA553D for ; Wed, 13 Sep 2023 11:10:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239921AbjIMLKy (ORCPT ); Wed, 13 Sep 2023 07:10:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239909AbjIMLKx (ORCPT ); Wed, 13 Sep 2023 07:10:53 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B606B19A6; Wed, 13 Sep 2023 04:10:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=OvdbcAa8gNPLTScw30C0haUonfkOP4Sq+9lSIjPBcA4=; b=BepW6GlQfs7UxJI49kYyTOBmOn io8rCiqoTN82fVhijBrxmh9o1TdkMXRsiAIwB5vFZMJHLLxr+CTkE5IT0bezBvw5XQkYmxJamyO7r VERBZCQvvADhWdAfiqojvZf61y+XfcgyFv5rOelIFAgst08ZgJMWU4IlV3C9vz/DA8lzKsDDcCi4x nTdjEjDz27Hb9ZI3K+FLVKG+rRX6BnVjvMb0SMmENeAYOBDB/ReOHHJhruLn67W3hQYc9BTZSJA4k vinBnybR1nUaX6WOMp85Fn/1tILifgOb74k8iOy2N+OpXTds6npnQN1TjbBmF5AD+WCPStHhmQgb2 vXoPOUQw==; Received: from [190.210.221.22] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qgNlN-005hvc-2f; Wed, 13 Sep 2023 11:10:30 +0000 From: Christoph Hellwig To: Christian Brauner , Al Viro Cc: Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Fenghua Yu , Reinette Chatre , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Dennis Dalessandro , Tejun Heo , Trond Myklebust , Anna Schumaker , Kees Cook , Damien Le Moal , Naohiro Aota , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org, linux-hardening@vger.kernel.org, cgroups@vger.kernel.org Subject: [PATCH 02/19] fs: make ->kill_sb optional Date: Wed, 13 Sep 2023 08:09:56 -0300 Message-Id: <20230913111013.77623-3-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230913111013.77623-1-hch@lst.de> References: <20230913111013.77623-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org Call generic_shutdown_super if ->kill_sb is not provided by the file system. This can't currently happen but will become common soon. Signed-off-by: Christoph Hellwig --- fs/super.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/super.c b/fs/super.c index 127a17d958a482..ab234e6af48605 100644 --- a/fs/super.c +++ b/fs/super.c @@ -483,7 +483,11 @@ void deactivate_locked_super(struct super_block *s) } unregister_shrinker(&s->s_shrink); - fs->kill_sb(s); + + if (fs->kill_sb) + fs->kill_sb(s); + else + generic_shutdown_super(s); kill_super_notify(s);