taglinefilesource code
volume_bit1112drivers/block/sbpcd.cDriveStruct[d].diskstate_flags &= ~volume_bit;
volume_bit1230drivers/block/sbpcd.cDriveStruct[d].diskstate_flags |= volume_bit;
volume_bit1491drivers/block/sbpcd.cDriveStruct[d].diskstate_flags &= ~volume_bit;
volume_bit1566drivers/block/sbpcd.cDriveStruct[d].diskstate_flags |= volume_bit;
volume_bit147include/linux/sbpcd.h#define volume_valid (DriveStruct[d].diskstate_flags&volume_bit)