int tmp = cmpxchg_acq(&sem->count, RWSEM_UNLOCKED_VALUE, 
long tmp = cmpxchg_acq(&sem->count, RWSEM_UNLOCKED_VALUE, 
__down_write_trylock (struct rw_semaphore *sem){	int tmp = cmpxchg_acq(&sem->count, RWSEM_UNLOCKED_VALUE,			      RWSEM_ACTIVE_WRITE_BIAS);	return tmp == RWSEM_UNLOCKED_VALUE;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/16592d269801ea68130b283c888ffb3c3e988299/rwsem.h/clean/include/asm-ia64/rwsem.h