newsz             217 kernel/vm.c    uvmalloc(pagetable_t pagetable, uint64 oldsz, uint64 newsz, int xperm)
newsz             222 kernel/vm.c      if(newsz < oldsz)
newsz             226 kernel/vm.c      for(a = oldsz; a < newsz; a += PGSIZE){
newsz             239 kernel/vm.c      return newsz;
newsz             247 kernel/vm.c    uvmdealloc(pagetable_t pagetable, uint64 oldsz, uint64 newsz)
newsz             249 kernel/vm.c      if(newsz >= oldsz)
newsz             252 kernel/vm.c      if(PGROUNDUP(newsz) < PGROUNDUP(oldsz)){
newsz             253 kernel/vm.c        int npages = (PGROUNDUP(oldsz) - PGROUNDUP(newsz)) / PGSIZE;
newsz             254 kernel/vm.c        uvmunmap(pagetable, PGROUNDUP(newsz), npages, 1);
newsz             257 kernel/vm.c      return newsz;