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()
316 static int read_header(struct log_c *log)  in read_header()  argument
320 	r = rw_header(log, REQ_OP_READ);  in read_header()
324 	header_from_disk(&log->header, log->disk_header);  in read_header()
327 	if (log->sync != DEFAULTSYNC || log->header.magic != MIRROR_MAGIC) {  in read_header()
328 		log->header.magic = MIRROR_MAGIC;  in read_header()
329 		log->header.version = MIRROR_DISK_VERSION;  in read_header()
330 		log->header.nr_regions = 0;  in read_header()
334 	if (log->header.version == 1)  in read_header()
335 		log->header.version = 2;  in read_header()
338 	if (log->header.version != MIRROR_DISK_VERSION) {  in read_header()
363 static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,  in create_log_context()  argument
511 	log->context = lc;  in create_log_context()
516 static int core_ctr(struct dm_dirty_log *log, struct dm_target *ti,  in core_ctr()  argument
519 	return create_log_context(log, ti, argc, argv, NULL);  in core_ctr()
529 static void core_dtr(struct dm_dirty_log *log)  in core_dtr()  argument
531 	struct log_c *lc = (struct log_c *) log->context;  in core_dtr()
542 static int disk_ctr(struct dm_dirty_log *log, struct dm_target *ti,  in disk_ctr()  argument
557 	r = create_log_context(log, ti, argc - 1, argv + 1, dev);  in disk_ctr()
566 static void disk_dtr(struct dm_dirty_log *log)  in disk_dtr()  argument
568 	struct log_c *lc = (struct log_c *) log->context;  in disk_dtr()
585 static int disk_resume(struct dm_dirty_log *log)  in disk_resume()  argument
589 	struct log_c *lc = (struct log_c *) log->context;  in disk_resume()
649 static uint32_t core_get_region_size(struct dm_dirty_log *log)  in core_get_region_size()  argument
651 	struct log_c *lc = (struct log_c *) log->context;  in core_get_region_size()
655 static int core_resume(struct dm_dirty_log *log)  in core_resume()  argument
657 	struct log_c *lc = (struct log_c *) log->context;  in core_resume()
662 static int core_is_clean(struct dm_dirty_log *log, region_t region)  in core_is_clean()  argument
664 	struct log_c *lc = (struct log_c *) log->context;  in core_is_clean()
668 static int core_in_sync(struct dm_dirty_log *log, region_t region, int block)  in core_in_sync()  argument
670 	struct log_c *lc = (struct log_c *) log->context;  in core_in_sync()
674 static int core_flush(struct dm_dirty_log *log)  in core_flush()  argument
680 static int disk_flush(struct dm_dirty_log *log)  in disk_flush()  argument
683 	struct log_c *lc = log->context;  in disk_flush()
689 	if (lc->touched_cleaned && log->flush_callback_fn &&  in disk_flush()
690 	    log->flush_callback_fn(lc->ti)) {  in disk_flush()
720 static void core_mark_region(struct dm_dirty_log *log, region_t region)  in core_mark_region()  argument
722 	struct log_c *lc = (struct log_c *) log->context;  in core_mark_region()
726 static void core_clear_region(struct dm_dirty_log *log, region_t region)  in core_clear_region()  argument
728 	struct log_c *lc = (struct log_c *) log->context;  in core_clear_region()
733 static int core_get_resync_work(struct dm_dirty_log *log, region_t *region)  in core_get_resync_work()  argument
735 	struct log_c *lc = (struct log_c *) log->context;  in core_get_resync_work()
755 static void core_set_region_sync(struct dm_dirty_log *log, region_t region,  in core_set_region_sync()  argument
758 	struct log_c *lc = (struct log_c *) log->context;  in core_set_region_sync()
770 static region_t core_get_sync_count(struct dm_dirty_log *log)  in core_get_sync_count()  argument
772         struct log_c *lc = (struct log_c *) log->context;  in core_get_sync_count()
781 static int core_status(struct dm_dirty_log *log, status_type_t status,  in core_status()  argument
785 	struct log_c *lc = log->context;  in core_status()
789 		DMEMIT("1 %s", log->type->name);  in core_status()
793 		DMEMIT("%s %u %u ", log->type->name,  in core_status()
801 static int disk_status(struct dm_dirty_log *log, status_type_t status,  in disk_status()  argument
805 	struct log_c *lc = log->context;  in disk_status()
809 		DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name,  in disk_status()
816 		DMEMIT("%s %u %s %u ", log->type->name,  in disk_status()