BitClean
return c == BitClean || c == BitDirty || c == BitCleanUnwritten;
if ((c == BitClean || c == BitDirty) &&
bits[BitUnwritten], bits[BitClean], bits[BitDirty],
[BitClean] = {
[BitmapActionDaemon] = BitClean,
case BitClean:
state = BitClean;