444 static int log_writes_ctr(struct dm_target *ti, unsigned int argc, char **argv)  in log_writes_ctr()  argument
455 		ti->error = "Invalid argument count";  in log_writes_ctr()
461 		ti->error = "Cannot allocate context";  in log_writes_ctr()
473 	ret = dm_get_device(ti, devname, dm_table_get_mode(ti->table), &lc->dev);  in log_writes_ctr()
475 		ti->error = "Device lookup failed";  in log_writes_ctr()
480 	ret = dm_get_device(ti, logdevname, dm_table_get_mode(ti->table),  in log_writes_ctr()
483 		ti->error = "Log device lookup failed";  in log_writes_ctr()
484 		dm_put_device(ti, lc->dev);  in log_writes_ctr()
493 		ti->error = "Couldn't alloc kthread";  in log_writes_ctr()
494 		dm_put_device(ti, lc->dev);  in log_writes_ctr()
495 		dm_put_device(ti, lc->logdev);  in log_writes_ctr()
509 	ti->num_flush_bios = 1;  in log_writes_ctr()
510 	ti->flush_supported = true;  in log_writes_ctr()
511 	ti->num_discard_bios = 1;  in log_writes_ctr()
512 	ti->discards_supported = true;  in log_writes_ctr()
513 	ti->per_io_data_size = sizeof(struct per_bio_data);  in log_writes_ctr()
514 	ti->private = lc;  in log_writes_ctr()
549 static void log_writes_dtr(struct dm_target *ti)  in log_writes_dtr()  argument
551 	struct log_writes_c *lc = ti->private;  in log_writes_dtr()
569 	dm_put_device(ti, lc->dev);  in log_writes_dtr()
570 	dm_put_device(ti, lc->logdev);  in log_writes_dtr()
574 static void normal_map_bio(struct dm_target *ti, struct bio *bio)  in normal_map_bio()  argument
576 	struct log_writes_c *lc = ti->private;  in normal_map_bio()
581 static int log_writes_map(struct dm_target *ti, struct bio *bio)  in log_writes_map()  argument
583 	struct log_writes_c *lc = ti->private;  in log_writes_map()
699 	normal_map_bio(ti, bio);  in log_writes_map()
703 static int normal_end_io(struct dm_target *ti, struct bio *bio,  in normal_end_io()  argument
706 	struct log_writes_c *lc = ti->private;  in normal_end_io()
732 static void log_writes_status(struct dm_target *ti, status_type_t type,  in log_writes_status()  argument
737 	struct log_writes_c *lc = ti->private;  in log_writes_status()
753 static int log_writes_prepare_ioctl(struct dm_target *ti,  in log_writes_prepare_ioctl()  argument
756 	struct log_writes_c *lc = ti->private;  in log_writes_prepare_ioctl()
763 	if (ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT)  in log_writes_prepare_ioctl()
768 static int log_writes_iterate_devices(struct dm_target *ti,  in log_writes_iterate_devices()  argument
772 	struct log_writes_c *lc = ti->private;  in log_writes_iterate_devices()
774 	return fn(ti, lc->dev, 0, ti->len, data);  in log_writes_iterate_devices()
781 static int log_writes_message(struct dm_target *ti, unsigned argc, char **argv)  in log_writes_message()  argument
784 	struct log_writes_c *lc = ti->private;  in log_writes_message()
799 static void log_writes_io_hints(struct dm_target *ti, struct queue_limits *limits)  in log_writes_io_hints()  argument
801 	struct log_writes_c *lc = ti->private;  in log_writes_io_hints()