SWP_DEVICE_READ 103 include/linux/swapops.h return swp_entry(write ? SWP_DEVICE_WRITE : SWP_DEVICE_READ, SWP_DEVICE_READ 110 include/linux/swapops.h return type == SWP_DEVICE_READ || type == SWP_DEVICE_WRITE; SWP_DEVICE_READ 115 include/linux/swapops.h *entry = swp_entry(SWP_DEVICE_READ, swp_offset(*entry));