3  * Simple file system for zoned block devices exposing zones as files.
39 	 * open operation on other zones if the drive active zone resources  in zonefs_zone_mgmt()
118 	 * Sequential zones can only accept direct writes. This is already  in zonefs_write_iomap_begin()
127 	 * For conventional zones, all blocks are always mapped. For sequential  in zonefs_write_iomap_begin()
128 	 * zones, all blocks after always mapped below the inode size (zone  in zonefs_write_iomap_begin()
269  * offline and readonly zones. Return the inode size corresponding to the
293 		 * The write pointer of read-only zones is invalid. If such a  in zonefs_check_zone_condition()
313 		/* The write pointer of full zones is invalid. */  in zonefs_check_zone_condition()
374 	 * First handle bad zones signaled by hardware. The mount options  in zonefs_io_error_cb()
452 	 * files with aggregated conventional zones, for which the inode zone  in __zonefs_io_error()
464 	 * may prevent IO forward progress. Executing the report zones under  in __zonefs_io_error()
525 	 * take care of open zones.  in zonefs_file_truncate()
671 	 * Conventional zones accept random writes, so their files can support  in zonefs_file_mmap()
691 	 * Seeks are limited to below the zone size for conventional zones  in zonefs_file_llseek()
692 	 * and below the zone write pointer for sequential zones. In both  in zonefs_file_llseek()
897 	/* Enforce sequential writes (append only) in sequential zones */  in zonefs_file_dio_write()
1014 	/* Offline zones cannot be read */  in zonefs_file_read_iter()
1147 			 * Leaving zones explicitly open may lead to a state  in zonefs_close_zone()
1148 			 * where most zones cannot be written (zone resources  in zonefs_close_zone()
1402 	 * For sequential zones, make sure that any open zone is closed first  in zonefs_init_file_inode()
1403 	 * to ensure that the initial number of open zones is 0, in sync with  in zonefs_init_file_inode()
1460 	struct blk_zone		*zones;  member
1500 	end = zd->zones + blkdev_nr_zones(sb->s_bdev->bd_disk);  in zonefs_create_zgroup()
1501 	for (zone = &zd->zones[1]; zone < end; zone = next) {  in zonefs_create_zgroup()
1508 		 * For conventional zones, contiguous zones can be aggregated  in zonefs_create_zgroup()
1510 		 * length of the first zone of the set of contiguous zones  in zonefs_create_zgroup()
1512 		 * found, assume that all zones aggregated have the same  in zonefs_create_zgroup()
1566 	 * Count the number of usable zones: the first zone at index 0 contains  in zonefs_get_zone_info_cb()
1586 	memcpy(&zd->zones[idx], zone, sizeof(struct blk_zone));  in zonefs_get_zone_info_cb()
1596 	zd->zones = kvcalloc(blkdev_nr_zones(bdev->bd_disk),  in zonefs_get_zone_info()
1598 	if (!zd->zones)  in zonefs_get_zone_info()
1601 	/* Get zones information from the device */  in zonefs_get_zone_info()
1610 		zonefs_err(zd->sb, "Invalid zone report (%d/%u zones)\n",  in zonefs_get_zone_info()
1620 	kvfree(zd->zones);  in zonefs_cleanup_zone_info()
1710  * Check that the device is zoned. If it is, get the list of zones and create
1773 	zonefs_info(sb, "Mounting %u zones",  in zonefs_fill_super()
1778 		zonefs_info(sb, "No open zones limit. Ignoring explicit_open mount option\n");  in zonefs_fill_super()