VMACACHE_HASH      39 mm/vmacache.c  		current->vmacache.vmas[VMACACHE_HASH(addr)] = newvma;
VMACACHE_HASH      64 mm/vmacache.c  	int idx = VMACACHE_HASH(addr);
VMACACHE_HASH      97 mm/vmacache.c  	int idx = VMACACHE_HASH(start);