protected_area
struct protected_area* e = (struct protected_area*)malloc(
sizeof(struct protected_area));
struct protected_area* p, **prevp;
struct protected_area* p = lock->prot;
struct protected_area* p = lock->prot;
struct protected_area* p;
s += sizeof(struct protected_area);
struct protected_area* p=lock->prot, *np;
struct protected_area* prot;
struct protected_area* next;