spin_lock_init(&nc->lock); 
static struct array_cache *alloc_arraycache(int cpu, int entries,						int batchcount){	int memsize = sizeof(void*)*entries+sizeof(struct array_cache);	struct array_cache *nc = NULL;	if (cpu == -1)		nc = kmalloc(memsize, GFP_KERNEL);	else		nc = kmalloc_node(memsize, GFP_KERNEL, cpu_to_node(cpu));	if (nc) {		nc->avail = 0;		nc->limit = entries;		nc->batchcount = batchcount;		nc->touched = 0;	}	return nc;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/e498be7dafd72fd68848c1eef1575aa7c5d658df/slab.c/clean/mm/slab.c