169 static int luo_alloc_files_mem(struct luo_file_set *file_set)  in luo_alloc_files_mem()  argument
174 	if (file_set->files)  in luo_alloc_files_mem()
177 	WARN_ON_ONCE(file_set->count);  in luo_alloc_files_mem()
184 	file_set->files = mem;  in luo_alloc_files_mem()
189 static void luo_free_files_mem(struct luo_file_set *file_set)  in luo_free_files_mem()  argument
192 	if (file_set->count)  in luo_free_files_mem()
195 	if (!file_set->files)  in luo_free_files_mem()
198 	kho_unpreserve_free(file_set->files);  in luo_free_files_mem()
199 	file_set->files = NULL;  in luo_free_files_mem()
202 static bool luo_token_is_used(struct luo_file_set *file_set, u64 token)  in luo_token_is_used()  argument
206 	list_for_each_entry(iter, &file_set->files_list, list) {  in luo_token_is_used()
253 int luo_preserve_file(struct luo_file_set *file_set, u64 token, int fd)  in luo_preserve_file()  argument
261 	if (luo_token_is_used(file_set, token))  in luo_preserve_file()
264 	if (file_set->count == LUO_FILE_MAX)  in luo_preserve_file()
271 	err = luo_alloc_files_mem(file_set);  in luo_preserve_file()
307 	list_add_tail(&luo_file->list, &file_set->files_list);  in luo_preserve_file()
308 	file_set->count++;  in luo_preserve_file()
315 	luo_free_files_mem(file_set);  in luo_preserve_file()
340 void luo_file_unpreserve_files(struct luo_file_set *file_set)  in luo_file_unpreserve_files()  argument
344 	while (!list_empty(&file_set->files_list)) {  in luo_file_unpreserve_files()
347 		luo_file = list_last_entry(&file_set->files_list,  in luo_file_unpreserve_files()
357 		file_set->count--;  in luo_file_unpreserve_files()
364 	luo_free_files_mem(file_set);  in luo_file_unpreserve_files()
367 static int luo_file_freeze_one(struct luo_file_set *file_set,  in luo_file_freeze_one()  argument
390 static void luo_file_unfreeze_one(struct luo_file_set *file_set,  in luo_file_unfreeze_one()  argument
409 static void __luo_file_unfreeze(struct luo_file_set *file_set,  in __luo_file_unfreeze()  argument
412 	struct list_head *files_list = &file_set->files_list;  in __luo_file_unfreeze()
419 		luo_file_unfreeze_one(file_set, luo_file);  in __luo_file_unfreeze()
422 	memset(file_set->files, 0, LUO_FILE_PGCNT << PAGE_SHIFT);  in __luo_file_unfreeze()
458 int luo_file_freeze(struct luo_file_set *file_set,  in luo_file_freeze()  argument
461 	struct luo_file_ser *file_ser = file_set->files;  in luo_file_freeze()
466 	if (!file_set->count)  in luo_file_freeze()
473 	list_for_each_entry(luo_file, &file_set->files_list, list) {  in luo_file_freeze()
474 		err = luo_file_freeze_one(file_set, luo_file);  in luo_file_freeze()
489 	file_set_ser->count = file_set->count;  in luo_file_freeze()
490 	if (file_set->files)  in luo_file_freeze()
491 		file_set_ser->files = virt_to_phys(file_set->files);  in luo_file_freeze()
496 	__luo_file_unfreeze(file_set, luo_file);  in luo_file_freeze()
517 void luo_file_unfreeze(struct luo_file_set *file_set,  in luo_file_unfreeze()  argument
520 	if (!file_set->count)  in luo_file_unfreeze()
523 	__luo_file_unfreeze(file_set, NULL);  in luo_file_unfreeze()
552 int luo_retrieve_file(struct luo_file_set *file_set, u64 token,  in luo_retrieve_file()  argument
560 	if (list_empty(&file_set->files_list))  in luo_retrieve_file()
563 	list_for_each_entry(luo_file, &file_set->files_list, list) {  in luo_retrieve_file()
599 static int luo_file_can_finish_one(struct luo_file_set *file_set,  in luo_file_can_finish_one()  argument
619 static void luo_file_finish_one(struct luo_file_set *file_set,  in luo_file_finish_one()  argument
666 int luo_file_finish(struct luo_file_set *file_set)  in luo_file_finish()  argument
668 	struct list_head *files_list = &file_set->files_list;  in luo_file_finish()
672 	if (!file_set->count)  in luo_file_finish()
676 		err = luo_file_can_finish_one(file_set, luo_file);  in luo_file_finish()
681 	while (!list_empty(&file_set->files_list)) {  in luo_file_finish()
682 		luo_file = list_last_entry(&file_set->files_list,  in luo_file_finish()
685 		luo_file_finish_one(file_set, luo_file);  in luo_file_finish()
690 		file_set->count--;  in luo_file_finish()
695 	if (file_set->files) {  in luo_file_finish()
696 		kho_restore_free(file_set->files);  in luo_file_finish()
697 		file_set->files = NULL;  in luo_file_finish()
728 int luo_file_deserialize(struct luo_file_set *file_set,  in luo_file_deserialize()  argument
739 	file_set->count = file_set_ser->count;  in luo_file_deserialize()
740 	file_set->files = phys_to_virt(file_set_ser->files);  in luo_file_deserialize()
757 	file_ser = file_set->files;  in luo_file_deserialize()
758 	for (i = 0; i < file_set->count; i++) {  in luo_file_deserialize()
786 		list_add_tail(&luo_file->list, &file_set->files_list);  in luo_file_deserialize()
792 void luo_file_set_init(struct luo_file_set *file_set)  in luo_file_set_init()  argument
794 	INIT_LIST_HEAD(&file_set->files_list);  in luo_file_set_init()
797 void luo_file_set_destroy(struct luo_file_set *file_set)  in luo_file_set_destroy()  argument
799 	WARN_ON(file_set->count);  in luo_file_set_destroy()
800 	WARN_ON(!list_empty(&file_set->files_list));  in luo_file_set_destroy()