taglinefilesource code
volume_bit1324drivers/block/sbpcd.cDriveStruct[d].diskstate_flags &= ~volume_bit;
volume_bit1472drivers/block/sbpcd.cDriveStruct[d].diskstate_flags |= volume_bit;
volume_bit1837drivers/block/sbpcd.cDriveStruct[d].diskstate_flags &= ~volume_bit;
volume_bit1946drivers/block/sbpcd.cDriveStruct[d].diskstate_flags |= volume_bit;
volume_bit159include/linux/sbpcd.h#define volume_valid (DriveStruct[d].diskstate_flags&volume_bit)