153 	struct dm_dirty_log *log;  in dm_dirty_log_create()  local
155 	log = kmalloc(sizeof(*log), GFP_KERNEL);  in dm_dirty_log_create()
156 	if (!log)  in dm_dirty_log_create()
161 		kfree(log);  in dm_dirty_log_create()
165 	log->flush_callback_fn = flush_callback_fn;  in dm_dirty_log_create()
166 	log->type = type;  in dm_dirty_log_create()
167 	if (type->ctr(log, ti, argc, argv)) {  in dm_dirty_log_create()
168 		kfree(log);  in dm_dirty_log_create()
173 	return log;  in dm_dirty_log_create()
177 void dm_dirty_log_destroy(struct dm_dirty_log *log)  in dm_dirty_log_destroy()  argument
179 	log->type->dtr(log);  in dm_dirty_log_destroy()
180 	put_type(log->type);  in dm_dirty_log_destroy()
181 	kfree(log);  in dm_dirty_log_destroy()
314 static int read_header(struct log_c *log)  in read_header()  argument
318 	r = rw_header(log, READ);  in read_header()
322 	header_from_disk(&log->header, log->disk_header);  in read_header()
325 	if (log->sync != DEFAULTSYNC || log->header.magic != MIRROR_MAGIC) {  in read_header()
326 		log->header.magic = MIRROR_MAGIC;  in read_header()
327 		log->header.version = MIRROR_DISK_VERSION;  in read_header()
328 		log->header.nr_regions = 0;  in read_header()
332 	if (log->header.version == 1)  in read_header()
333 		log->header.version = 2;  in read_header()
336 	if (log->header.version != MIRROR_DISK_VERSION) {  in read_header()
361 static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,  in create_log_context()  argument
509 	log->context = lc;  in create_log_context()
514 static int core_ctr(struct dm_dirty_log *log, struct dm_target *ti,  in core_ctr()  argument
517 	return create_log_context(log, ti, argc, argv, NULL);  in core_ctr()
527 static void core_dtr(struct dm_dirty_log *log)  in core_dtr()  argument
529 	struct log_c *lc = (struct log_c *) log->context;  in core_dtr()
540 static int disk_ctr(struct dm_dirty_log *log, struct dm_target *ti,  in disk_ctr()  argument
555 	r = create_log_context(log, ti, argc - 1, argv + 1, dev);  in disk_ctr()
564 static void disk_dtr(struct dm_dirty_log *log)  in disk_dtr()  argument
566 	struct log_c *lc = (struct log_c *) log->context;  in disk_dtr()
583 static int disk_resume(struct dm_dirty_log *log)  in disk_resume()  argument
587 	struct log_c *lc = (struct log_c *) log->context;  in disk_resume()
647 static uint32_t core_get_region_size(struct dm_dirty_log *log)  in core_get_region_size()  argument
649 	struct log_c *lc = (struct log_c *) log->context;  in core_get_region_size()
653 static int core_resume(struct dm_dirty_log *log)  in core_resume()  argument
655 	struct log_c *lc = (struct log_c *) log->context;  in core_resume()
660 static int core_is_clean(struct dm_dirty_log *log, region_t region)  in core_is_clean()  argument
662 	struct log_c *lc = (struct log_c *) log->context;  in core_is_clean()
666 static int core_in_sync(struct dm_dirty_log *log, region_t region, int block)  in core_in_sync()  argument
668 	struct log_c *lc = (struct log_c *) log->context;  in core_in_sync()
672 static int core_flush(struct dm_dirty_log *log)  in core_flush()  argument
678 static int disk_flush(struct dm_dirty_log *log)  in disk_flush()  argument
681 	struct log_c *lc = log->context;  in disk_flush()
687 	if (lc->touched_cleaned && log->flush_callback_fn &&  in disk_flush()
688 	    log->flush_callback_fn(lc->ti)) {  in disk_flush()
718 static void core_mark_region(struct dm_dirty_log *log, region_t region)  in core_mark_region()  argument
720 	struct log_c *lc = (struct log_c *) log->context;  in core_mark_region()
724 static void core_clear_region(struct dm_dirty_log *log, region_t region)  in core_clear_region()  argument
726 	struct log_c *lc = (struct log_c *) log->context;  in core_clear_region()
731 static int core_get_resync_work(struct dm_dirty_log *log, region_t *region)  in core_get_resync_work()  argument
733 	struct log_c *lc = (struct log_c *) log->context;  in core_get_resync_work()
753 static void core_set_region_sync(struct dm_dirty_log *log, region_t region,  in core_set_region_sync()  argument
756 	struct log_c *lc = (struct log_c *) log->context;  in core_set_region_sync()
768 static region_t core_get_sync_count(struct dm_dirty_log *log)  in core_get_sync_count()  argument
770         struct log_c *lc = (struct log_c *) log->context;  in core_get_sync_count()
779 static int core_status(struct dm_dirty_log *log, status_type_t status,  in core_status()  argument
783 	struct log_c *lc = log->context;  in core_status()
787 		DMEMIT("1 %s", log->type->name);  in core_status()
791 		DMEMIT("%s %u %u ", log->type->name,  in core_status()
799 static int disk_status(struct dm_dirty_log *log, status_type_t status,  in disk_status()  argument
803 	struct log_c *lc = log->context;  in disk_status()
807 		DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name,  in disk_status()
814 		DMEMIT("%s %u %s %u ", log->type->name,  in disk_status()