dapl_evd_event_alloc
dapl_rbuf_alloc
	struct dat_event *event;
	int i;
	int status = 0;

	/* Allocate EVENTs */
	event = vmalloc(evd->qlen * sizeof *event);

#define cmpxchg_acq(ptr,o,n)    ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr)))
#define cmpxchg_rel(ptr,o,n)    ia64_cmpxchg(rel, (ptr), (o), (n),sizeof(*(ptr)))

/* for compatibility with other platforms: */
#define cmpxchg(ptr,o,n)        cmpxchg_acq(ptr,o,n)

"include/asm-ia64/intrinsics.h" 181L, 5355C