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Registered in England and Wales under Company Registration No. 3798903 Subject: [RFC PATCH 38/76] cachefiles: Split cachefiles_drop_object() up a bit From: David Howells To: Trond Myklebust , Anna Schumaker , Steve French , Dominique Martinet Cc: dhowells@redhat.com, Jeff Layton , Matthew Wilcox , Alexander Viro , 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: Fri, 20 Nov 2020 15:10:50 +0000 Message-ID: <160588505087.3465195.3378506836842491220.stgit@warthog.procyon.org.uk> In-Reply-To: <160588455242.3465195.3214733858273019178.stgit@warthog.procyon.org.uk> References: <160588455242.3465195.3214733858273019178.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.23 MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@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 e40118e65e25..3f6d2be690bc 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("");