FreeBSD/sys/sys/buf.h
/* Data address for unmapped buffers. */
Data address for unmapped buffers.
Data address for unmapped buffers .
static inline int
buf_mapped(struct buf *bp)
{
	return (bp->b_data != unmapped_buf);
}
static inline int buf_mapped ( struct buf * bp ) { return ( bp -> b_data != unmapped_buf ) ; }
Data address for unmapped buffers.
Data address for unmapped buffers .