src/backend/access/hash/hashpage.c
void
_hash_relbuf(Relation rel, Buffer buf)
{
	UnlockReleaseBuffer(buf);
}
/*
 *	_hash_relbuf() -- release a locked buffer.
 *
 * Lock and pin (refcount) are both dropped.
 */
- release a locked buffer.
Lock and pin (refcount) are both dropped.
- release a locked buffer . Lock and pin ( refcount ) are both dropped .
void
_hash_relbuf(Relation rel, Buffer buf)
{
	UnlockReleaseBuffer(buf);
}
void _hash_relbuf ( Relation rel , Buffer buf ) { UnlockReleaseBuffer ( buf ) ; }
_hash_relbuf() -- release a locked buffer.
_hash_relbuf () -- release a locked buffer .