FS-Cache: Uninline fscache_object_init()

Uninline fscache_object_init() so as not to expose some of the FS-Cache
internals to the cache backend.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-By: Milosz Tanski <milosz@adfin.com>
Acked-by: Jeff Layton <jlayton@redhat.com>

1 files changed, 38 insertions, 2 deletions

diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 50d41c180211..0133699f74ee 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -363,7 +363,7 @@ unsupported_event:
 /*
  * execute an object
  */
-void fscache_object_work_func(struct work_struct *work)
+static void fscache_object_work_func(struct work_struct *work)
 {
         struct fscache_object *object =
                 container_of(work, struct fscache_object, work);
@@ -379,7 +379,43 @@ void fscache_object_work_func(struct work_struct *work)
         clear_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
         fscache_put_object(object);
 }
-EXPORT_SYMBOL(fscache_object_work_func);
+
+/**
+ * fscache_object_init - Initialise a cache object description
+ * @object: Object description
+ * @cookie: Cookie object will be attached to
+ * @cache: Cache in which backing object will be found
+ *
+ * Initialise a cache object description to its basic values.
+ *
+ * See Documentation/filesystems/caching/backend-api.txt for a complete
+ * description.
+ */
+void fscache_object_init(struct fscache_object *object,
+                         struct fscache_cookie *cookie,
+                         struct fscache_cache *cache)
+{
+        atomic_inc(&cache->object_count);
+
+        object->state = FSCACHE_OBJECT_INIT;
+        spin_lock_init(&object->lock);
+        INIT_LIST_HEAD(&object->cache_link);
+        INIT_HLIST_NODE(&object->cookie_link);
+        INIT_WORK(&object->work, fscache_object_work_func);
+        INIT_LIST_HEAD(&object->dependents);
+        INIT_LIST_HEAD(&object->dep_link);
+        INIT_LIST_HEAD(&object->pending_ops);
+        object->n_children = 0;
+        object->n_ops = object->n_in_progress = object->n_exclusive = 0;
+        object->events = object->event_mask = 0;
+        object->flags = 0;
+        object->store_limit = 0;
+        object->store_limit_l = 0;
+        object->cache = cache;
+        object->cookie = cookie;
+        object->parent = NULL;
+}
+EXPORT_SYMBOL(fscache_object_init);
 
 /*
  * initialise an object