B_DISK_DEVICE_WRITE_ONCE - Haiku

Symbol: B_DISK_DEVICE_WRITE_ONCE

src/kits/storage/disk_device/DiskDevice.cpp

&& (fDeviceData->device_flags & B_DISK_DEVICE_WRITE_ONCE) != 0;

src/system/kernel/disk_device_manager/KDiskDevice.cpp

SetDeviceFlags(DeviceFlags() | B_DISK_DEVICE_WRITE_ONCE);