From patchwork Mon Jul 13 16:33:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 11660475 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 290C713A4 for ; Mon, 13 Jul 2020 16:33:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1164F206F0 for ; Mon, 13 Jul 2020 16:33:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PIboFAGo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730324AbgGMQdu (ORCPT ); Mon, 13 Jul 2020 12:33:50 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:23586 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730384AbgGMQdt (ORCPT ); Mon, 13 Jul 2020 12:33:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594658028; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fOWYXigZvYWiY8apzgv2t9nu9RfiJe//8dPmvbLaW1M=; b=PIboFAGoe0Pilk6p1buk0uLDcP0U84Q1vm2ciEsCn7yBk43qDBQ3k8445VdYDSLPsDXGrs ajmhG5Gj1Ic6WzvV43SMatTGJXXeVUXbATKqwvdttOx2WIhDK5H1aVSWR5b9XtEUEV+ml5 L16vcFW50S+N+007NvfbGBLquE0gszI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-360-RoEP98VlPS-IryIyEwbRWA-1; Mon, 13 Jul 2020 12:33:46 -0400 X-MC-Unique: RoEP98VlPS-IryIyEwbRWA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1DB6D1800D42; Mon, 13 Jul 2020 16:33:45 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-112-113.rdu2.redhat.com [10.10.112.113]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3A24E19D61; Mon, 13 Jul 2020 16:33:39 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Subject: [PATCH 16/32] cachefiles: Split cachefiles_drop_object() up a bit From: David Howells To: Trond Myklebust , Anna Schumaker , Steve French , Alexander Viro , Matthew Wilcox Cc: Jeff Layton , Dave Wysochanski , dhowells@redhat.com, linux-cachefs@redhat.com, linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Mon, 13 Jul 2020 17:33:38 +0100 Message-ID: <159465801837.1376674.800536726710094793.stgit@warthog.procyon.org.uk> In-Reply-To: <159465784033.1376674.18106463693989811037.stgit@warthog.procyon.org.uk> References: <159465784033.1376674.18106463693989811037.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.22 MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Split cachefiles_drop_object() up a bit to make it easier to modify later. Signed-off-by: David Howells --- fs/cachefiles/interface.c | 58 ++++++++++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 19 deletions(-) diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c index e4d1a82b9f33..56ed6f203e1c 100644 --- a/fs/cachefiles/interface.c +++ b/fs/cachefiles/interface.c @@ -192,6 +192,42 @@ static void cachefiles_update_object(struct fscache_object *_object) _leave(""); } +/* + * Commit changes to the object as we drop it. + */ +static void cachefiles_commit_object(struct cachefiles_object *object, + struct cachefiles_cache *cache) +{ +} + +/* + * Finalise and object and close the VFS structs that we have. + */ +static void cachefiles_clean_up_object(struct cachefiles_object *object, + struct cachefiles_cache *cache, + bool invalidate) +{ + if (invalidate && &object->fscache != cache->cache.fsdef) { + _debug("- inval object OBJ%x", object->fscache.debug_id); + cachefiles_delete_object(cache, object); + } else { + cachefiles_commit_object(object, cache); + } + + /* close the filesystem stuff attached to the object */ + if (object->backing_file) + fput(object->backing_file); + object->backing_file = NULL; + + if (object->backer != object->dentry) + dput(object->backer); + object->backer = NULL; + + cachefiles_unmark_inode_in_use(object, object->dentry); + dput(object->dentry); + object->dentry = NULL; +} + /* * discard the resources pinned by an object and effect retirement if * requested @@ -223,25 +259,9 @@ static void cachefiles_drop_object(struct fscache_object *_object, * before we set it up. */ if (object->dentry) { - if (invalidate && _object != cache->cache.fsdef) { - _debug("- inval object OBJ%x", object->fscache.debug_id); - cachefiles_begin_secure(cache, &saved_cred); - cachefiles_delete_object(cache, object); - cachefiles_end_secure(cache, saved_cred); - } - - /* close the filesystem stuff attached to the object */ - if (object->backing_file) - fput(object->backing_file); - object->backing_file = NULL; - - if (object->backer != object->dentry) - dput(object->backer); - object->backer = NULL; - - cachefiles_unmark_inode_in_use(object, object->dentry); - dput(object->dentry); - object->dentry = NULL; + cachefiles_begin_secure(cache, &saved_cred); + cachefiles_clean_up_object(object, cache, invalidate); + cachefiles_end_secure(cache, saved_cred); } _leave("");