void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
BlueSkyStoreAsync *barrier);
void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier);
void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
BlueSkyStoreAsync *barrier);
void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier);