void bluesky_block_fetch(BlueSkyInode *inode, BlueSkyBlock *block,
BlueSkyStoreAsync *barrier);
void bluesky_block_flush(BlueSkyInode *inode, BlueSkyBlock *block,
void bluesky_block_fetch(BlueSkyInode *inode, BlueSkyBlock *block,
BlueSkyStoreAsync *barrier);
void bluesky_block_flush(BlueSkyInode *inode, BlueSkyBlock *block,