43 	unsigned region_size;		/* Region size in 512-byte sectors */  member
60 					   unsigned region_size)  in alloc_switch_ctx()  argument
69 	sctx->region_size = region_size;  in alloc_switch_ctx()
82 	if (!(sctx->region_size & (sctx->region_size - 1)))  in alloc_region_table()
83 		sctx->region_size_bits = __ffs(sctx->region_size);  in alloc_region_table()
98 	if (sector_div(nr_regions, sctx->region_size))  in alloc_region_table()
163 		sector_div(p, sctx->region_size);  in switch_get_path_nr()
262 	unsigned nr_paths, region_size, nr_optional_args;  in switch_ctr()  local
272 	r = dm_read_arg(_args + 1, &as, &region_size, &ti->error);  in switch_ctr()
286 	sctx = alloc_switch_ctx(ti, nr_paths, region_size);  in switch_ctr()
292 	r = dm_set_target_max_io_len(ti, region_size);  in switch_ctr()
502 		DMEMIT("%u %u 0", sctx->nr_paths, sctx->region_size);  in switch_status()