>>>>> "Tom" == Tom Yan <tom.ty89@xxxxxxxxx> writes: Tom> Btw, why SD_MAX_WS16_BLOCKS (which is used for both SD_LBP_WS16 and Tom> SD_LBP_UNMAP) is set to 0x7fffff (23-bit) instead of 0xffffffff Tom> (32-bit, 4-byte)? This limit represents the largest block range we can describe using a single bio. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html