ATA_EH_PARK       324 include/linux/libata.h ATA_EH_PARK		= (1 << 5), /* unload heads and stop I/O */
ATA_EH_PARK       326 include/linux/libata.h ATA_EH_PERDEV_MASK	= ATA_EH_REVALIDATE | ATA_EH_PARK,