Symbol: atomic_cmpxchg
usr/src/uts/common/io/ib/clients/rdsv3/ib_send.c
408
if (atomic_cmpxchg(&ic->i_credits, oldval, newval) != oldval)
usr/src/uts/common/sys/ib/clients/rdsv3/rdsv3.h
572
return (atomic_cmpxchg(&conn->c_state, old, new) == old);