drivers/md/dm-zone.c

25 	struct gendisk *disk = md->disk;
46 		 args.next_sector < get_capacity(disk));
56 int dm_blk_report_zones(struct gendisk *disk, sector_t sector,
59 	struct mapped_device *md = disk->private_data;
143 	if (md->disk) {
144 		bitmap_free(md->disk->conv_zones_bitmap);
145 		md->disk->conv_zones_bitmap = NULL;
146 		bitmap_free(md->disk->seq_zones_wlock);
147 		md->disk->seq_zones_wlock = NULL;
181 	struct gendisk *disk = md->disk;
185 		if (!disk->conv_zones_bitmap) {
186 			disk->conv_zones_bitmap = bitmap_zalloc(disk->nr_zones,
188 			if (!disk->conv_zones_bitmap)
191 		set_bit(idx, disk->conv_zones_bitmap);
195 		if (!disk->seq_zones_wlock) {
196 			disk->seq_zones_wlock = bitmap_zalloc(disk->nr_zones,
198 			if (!disk->seq_zones_wlock)
203 				kvcalloc(disk->nr_zones, sizeof(unsigned int),
228 	struct gendisk *disk = md->disk;
236 	if (!disk->nr_zones || disk->nr_zones != md->nr_zones)
246 	ret = dm_blk_do_report_zones(md, t, 0, disk->nr_zones,
251 	if (ret != disk->nr_zones) {
256 	md->nr_zones = disk->nr_zones;
298 	md->disk->nr_zones = bdev_nr_zones(md->disk->part0);
312 	if (!get_capacity(md->disk))
331 	sector_t sector = zno * bdev_zone_sectors(md->disk->part0);
370 	sector_t zsectors = bdev_zone_sectors(md->disk->part0);
440 			   bdev_zone_sectors(md->disk->part0));
463 static inline void dm_zone_lock(struct gendisk *disk, unsigned int zno,
469 	wait_on_bit_lock_io(disk->seq_zones_wlock, zno, TASK_UNINTERRUPTIBLE);
473 static inline void dm_zone_unlock(struct gendisk *disk, unsigned int zno,
479 	WARN_ON_ONCE(!test_bit(zno, disk->seq_zones_wlock));
480 	clear_bit_unlock(zno, disk->seq_zones_wlock);
482 	wake_up_bit(disk->seq_zones_wlock, zno);
532 	dm_zone_lock(md->disk, zno, clone);
542 		dm_zone_unlock(md->disk, zno, clone);
566 			dm_zone_unlock(md->disk, zno, clone);
571 		dm_zone_unlock(md->disk, zno, clone);
588 	struct gendisk *disk = md->disk;
605 				(sector_t)bdev_zone_sectors(disk->part0) - 1;
646 	dm_zone_unlock(disk, zno, clone);