From patchwork Thu Aug 31 05:29:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13370919 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 C3D9CC83F10 for ; Thu, 31 Aug 2023 05:29:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242861AbjHaF3z (ORCPT ); Thu, 31 Aug 2023 01:29:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229924AbjHaF3z (ORCPT ); Thu, 31 Aug 2023 01:29:55 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1E1FE0; Wed, 30 Aug 2023 22:29:51 -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:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:In-Reply-To:References; bh=jy2QIfkb1SiUcs2Z5SbQvY3u75WHmQMCBX/FVC1yq+Y=; b=KawAmdeS5BFUEXFdjkgNXn+OnP udAk/rzRY8Kz8MbGIbsUXbYMOCqav6KpIi9H1Fu0fnwuZks97oppH0mESjlU8JZHIlw9zpdxkQXlY tYNyKCCnbQYE9/eXK+PeP9Ye8QBQvCmFsnwhAZ+j7vVWqmxYNUeBQs59YSPS6WsOkE2WZ/82/97tQ Bh5NU7SE2hum5p79Q+PTaG5v6gJtAKIA7xhargxxjYefYzXBFvGqfvdMTZOlt4pbnnDpxriQKLLUd U7oVZcoxIRamhMT0nPnUHY57uFpnACIo4DIGrS9+yacJbA1eC0K/atmOXYM9/WTexQ2DHL5itSnGn CCr6snkA==; Received: from 2a02-8389-2341-5b80-39d3-4735-9a3c-88d8.cable.dynamic.v6.surfer.at ([2a02:8389:2341:5b80:39d3:4735:9a3c:88d8] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qbaFW-00EgfY-03; Thu, 31 Aug 2023 05:29:46 +0000 From: Christoph Hellwig To: brauner@kernel.org Cc: trond.myklebust@hammerspace.com, anna@kernel.org, jack@suse.cz, linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH] NFS: switch back to using kill_anon_super Date: Thu, 31 Aug 2023 07:29:40 +0200 Message-Id: <20230831052940.256193-1-hch@lst.de> X-Mailer: git-send-email 2.39.2 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-nfs@vger.kernel.org NFS switch to open coding kill_anon_super in 7b14a213890a ("nfs: don't call bdi_unregister") to avoid the extra bdi_unregister call. At that point bdi_destroy was called in nfs_free_server and thus it required a later freeing of the anon dev_t. But since 0db10944a76b ("nfs: Convert to separately allocated bdi") the bdi has been free implicitly by the sb destruction, so this isn't needed anymore. By not open coding kill_anon_super, nfs now inherits the fix in dc3216b14160 ("super: ensure valid info"), and we remove the only open coded version of kill_anon_super. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Jeff Layton --- fs/nfs/super.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 2284f749d89246..0d6473cb00cb3e 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1339,15 +1339,13 @@ int nfs_get_tree_common(struct fs_context *fc) void nfs_kill_super(struct super_block *s) { struct nfs_server *server = NFS_SB(s); - dev_t dev = s->s_dev; nfs_sysfs_move_sb_to_server(server); - generic_shutdown_super(s); + kill_anon_super(s); nfs_fscache_release_super_cookie(s); nfs_free_server(server); - free_anon_bdev(dev); } EXPORT_SYMBOL_GPL(nfs_kill_super);