26 	struct cachefiles_object *object;  in cachefiles_alloc_object()  local
30 	object = kmem_cache_zalloc(cachefiles_object_jar, GFP_KERNEL);  in cachefiles_alloc_object()
31 	if (!object)  in cachefiles_alloc_object()
34 	refcount_set(&object->ref, 1);  in cachefiles_alloc_object()
36 	spin_lock_init(&object->lock);  in cachefiles_alloc_object()
37 	INIT_LIST_HEAD(&object->cache_link);  in cachefiles_alloc_object()
38 	object->volume = volume;  in cachefiles_alloc_object()
39 	object->debug_id = atomic_inc_return(&cachefiles_object_debug_id);  in cachefiles_alloc_object()
40 	object->cookie = fscache_get_cookie(cookie, fscache_cookie_get_attach_object);  in cachefiles_alloc_object()
43 	trace_cachefiles_ref(object->debug_id, cookie->debug_id, 1,  in cachefiles_alloc_object()
45 	return object;  in cachefiles_alloc_object()
51 void cachefiles_see_object(struct cachefiles_object *object,  in cachefiles_see_object()  argument
54 	trace_cachefiles_ref(object->debug_id, object->cookie->debug_id,  in cachefiles_see_object()
55 			     refcount_read(&object->ref), why);  in cachefiles_see_object()
61 struct cachefiles_object *cachefiles_grab_object(struct cachefiles_object *object,  in cachefiles_grab_object()  argument
66 	__refcount_inc(&object->ref, &r);  in cachefiles_grab_object()
67 	trace_cachefiles_ref(object->debug_id, object->cookie->debug_id, r, why);  in cachefiles_grab_object()
68 	return object;  in cachefiles_grab_object()
74 void cachefiles_put_object(struct cachefiles_object *object,  in cachefiles_put_object()  argument
77 	unsigned int object_debug_id = object->debug_id;  in cachefiles_put_object()
78 	unsigned int cookie_debug_id = object->cookie->debug_id;  in cachefiles_put_object()
83 	done = __refcount_dec_and_test(&object->ref, &r);  in cachefiles_put_object()
88 		ASSERTCMP(object->file, ==, NULL);  in cachefiles_put_object()
90 		kfree(object->d_name);  in cachefiles_put_object()
92 		cache = object->volume->cache->cache;  in cachefiles_put_object()
93 		fscache_put_cookie(object->cookie, fscache_cookie_put_object);  in cachefiles_put_object()
94 		object->cookie = NULL;  in cachefiles_put_object()
95 		kmem_cache_free(cachefiles_object_jar, object);  in cachefiles_put_object()
109 static int cachefiles_adjust_size(struct cachefiles_object *object)  in cachefiles_adjust_size()  argument
112 	struct file *file = object->file;  in cachefiles_adjust_size()
117 	ni_size = object->cookie->object_size;  in cachefiles_adjust_size()
121 	       object->debug_id, (unsigned long long) ni_size);  in cachefiles_adjust_size()
161 		cachefiles_io_error_obj(object, "Size set failed");  in cachefiles_adjust_size()
174 	struct cachefiles_object *object;  in cachefiles_lookup_cookie()  local
179 	object = cachefiles_alloc_object(cookie);  in cachefiles_lookup_cookie()
180 	if (!object)  in cachefiles_lookup_cookie()
183 	_enter("{OBJ%x}", object->debug_id);  in cachefiles_lookup_cookie()
185 	if (!cachefiles_cook_key(object))  in cachefiles_lookup_cookie()
188 	cookie->cache_priv = object;  in cachefiles_lookup_cookie()
192 	success = cachefiles_look_up_object(object);  in cachefiles_lookup_cookie()
196 	cachefiles_see_object(object, cachefiles_obj_see_lookup_cookie);  in cachefiles_lookup_cookie()
199 	list_add(&object->cache_link, &cache->object_list);  in cachefiles_lookup_cookie()
201 	cachefiles_adjust_size(object);  in cachefiles_lookup_cookie()
209 	cachefiles_see_object(object, cachefiles_obj_see_lookup_failed);  in cachefiles_lookup_cookie()
211 	_debug("failed c=%08x o=%08x", cookie->debug_id, object->debug_id);  in cachefiles_lookup_cookie()
218 	cachefiles_put_object(object, cachefiles_obj_put_alloc_fail);  in cachefiles_lookup_cookie()
227 static bool cachefiles_shorten_object(struct cachefiles_object *object,  in cachefiles_shorten_object()  argument
230 	struct cachefiles_cache *cache = object->volume->cache;  in cachefiles_shorten_object()
238 	trace_cachefiles_trunc(object, inode, i_size, dio_size,  in cachefiles_shorten_object()
244 		trace_cachefiles_io_error(object, file_inode(file), ret,  in cachefiles_shorten_object()
246 		cachefiles_io_error_obj(object, "Trunc-to-size failed %d", ret);  in cachefiles_shorten_object()
247 		cachefiles_remove_object_xattr(cache, object, file->f_path.dentry);  in cachefiles_shorten_object()
252 		trace_cachefiles_trunc(object, inode, dio_size, new_size,  in cachefiles_shorten_object()
259 			trace_cachefiles_io_error(object, file_inode(file), ret,  in cachefiles_shorten_object()
261 			cachefiles_io_error_obj(object, "Trunc-to-dio-size failed %d", ret);  in cachefiles_shorten_object()
262 			cachefiles_remove_object_xattr(cache, object, file->f_path.dentry);  in cachefiles_shorten_object()
276 	struct cachefiles_object *object = cachefiles_cres_object(cres);  in cachefiles_resize_cookie()  local
277 	struct cachefiles_cache *cache = object->volume->cache;  in cachefiles_resize_cookie()
278 	struct fscache_cookie *cookie = object->cookie;  in cachefiles_resize_cookie()
287 		cachefiles_shorten_object(object, file, new_size);  in cachefiles_resize_cookie()
289 		object->cookie->object_size = new_size;  in cachefiles_resize_cookie()
303 static void cachefiles_commit_object(struct cachefiles_object *object,  in cachefiles_commit_object()  argument
308 	if (test_and_clear_bit(FSCACHE_COOKIE_LOCAL_WRITE, &object->cookie->flags))  in cachefiles_commit_object()
310 	if (test_and_clear_bit(FSCACHE_COOKIE_NEEDS_UPDATE, &object->cookie->flags))  in cachefiles_commit_object()
313 		cachefiles_set_object_xattr(object);  in cachefiles_commit_object()
315 	if (test_bit(CACHEFILES_OBJECT_USING_TMPFILE, &object->flags))  in cachefiles_commit_object()
316 		cachefiles_commit_tmpfile(cache, object);  in cachefiles_commit_object()
322 static void cachefiles_clean_up_object(struct cachefiles_object *object,  in cachefiles_clean_up_object()  argument
325 	if (test_bit(FSCACHE_COOKIE_RETIRED, &object->cookie->flags)) {  in cachefiles_clean_up_object()
326 		if (!test_bit(CACHEFILES_OBJECT_USING_TMPFILE, &object->flags)) {  in cachefiles_clean_up_object()
327 			cachefiles_see_object(object, cachefiles_obj_see_clean_delete);  in cachefiles_clean_up_object()
328 			_debug("- inval object OBJ%x", object->debug_id);  in cachefiles_clean_up_object()
329 			cachefiles_delete_object(object, FSCACHE_OBJECT_WAS_RETIRED);  in cachefiles_clean_up_object()
331 			cachefiles_see_object(object, cachefiles_obj_see_clean_drop_tmp);  in cachefiles_clean_up_object()
332 			_debug("- inval object OBJ%x tmpfile", object->debug_id);  in cachefiles_clean_up_object()
335 		cachefiles_see_object(object, cachefiles_obj_see_clean_commit);  in cachefiles_clean_up_object()
336 		cachefiles_commit_object(object, cache);  in cachefiles_clean_up_object()
339 	cachefiles_unmark_inode_in_use(object, object->file);  in cachefiles_clean_up_object()
340 	if (object->file) {  in cachefiles_clean_up_object()
341 		fput(object->file);  in cachefiles_clean_up_object()
342 		object->file = NULL;  in cachefiles_clean_up_object()
351 	struct cachefiles_object *object = cookie->cache_priv;  in cachefiles_withdraw_cookie()  local
352 	struct cachefiles_cache *cache = object->volume->cache;  in cachefiles_withdraw_cookie()
355 	_enter("o=%x", object->debug_id);  in cachefiles_withdraw_cookie()
356 	cachefiles_see_object(object, cachefiles_obj_see_withdraw_cookie);  in cachefiles_withdraw_cookie()
358 	if (!list_empty(&object->cache_link)) {  in cachefiles_withdraw_cookie()
360 		cachefiles_see_object(object, cachefiles_obj_see_withdrawal);  in cachefiles_withdraw_cookie()
361 		list_del_init(&object->cache_link);  in cachefiles_withdraw_cookie()
365 	cachefiles_ondemand_clean_object(object);  in cachefiles_withdraw_cookie()
367 	if (object->file) {  in cachefiles_withdraw_cookie()
369 		cachefiles_clean_up_object(object, cache);  in cachefiles_withdraw_cookie()
374 	cachefiles_put_object(object, cachefiles_obj_put_detach);  in cachefiles_withdraw_cookie()
382 	struct cachefiles_object *object = cookie->cache_priv;  in cachefiles_invalidate_cookie()  local
386 	_enter("o=%x,[%llu]", object->debug_id, object->cookie->object_size);  in cachefiles_invalidate_cookie()
388 	old_tmpfile = test_bit(CACHEFILES_OBJECT_USING_TMPFILE, &object->flags);  in cachefiles_invalidate_cookie()
390 	if (!object->file) {  in cachefiles_invalidate_cookie()
396 	new_file = cachefiles_create_tmpfile(object);  in cachefiles_invalidate_cookie()
402 	spin_lock(&object->lock);  in cachefiles_invalidate_cookie()
404 	old_file = object->file;  in cachefiles_invalidate_cookie()
405 	object->file = new_file;  in cachefiles_invalidate_cookie()
406 	object->content_info = CACHEFILES_CONTENT_NO_DATA;  in cachefiles_invalidate_cookie()
407 	set_bit(CACHEFILES_OBJECT_USING_TMPFILE, &object->flags);  in cachefiles_invalidate_cookie()
408 	set_bit(FSCACHE_COOKIE_NEEDS_UPDATE, &object->cookie->flags);  in cachefiles_invalidate_cookie()
410 	spin_unlock(&object->lock);  in cachefiles_invalidate_cookie()
418 			struct cachefiles_volume *volume = object->volume;  in cachefiles_invalidate_cookie()
422 			cachefiles_bury_object(volume->cache, object, fan,  in cachefiles_invalidate_cookie()