PGROUNDUP          81 kernel/exec.c    sz = PGROUNDUP(sz);
PGROUNDUP          37 kernel/kalloc.c   p = (char*)PGROUNDUP((uint64)pa_start);
PGROUNDUP         241 kernel/vm.c      oldsz = PGROUNDUP(oldsz);
PGROUNDUP         268 kernel/vm.c      if(PGROUNDUP(newsz) < PGROUNDUP(oldsz)){
PGROUNDUP         269 kernel/vm.c        int npages = (PGROUNDUP(oldsz) - PGROUNDUP(newsz)) / PGSIZE;
PGROUNDUP         270 kernel/vm.c        uvmunmap(pagetable, PGROUNDUP(newsz), npages, 1);
PGROUNDUP         302 kernel/vm.c        uvmunmap(pagetable, 0, PGROUNDUP(sz)/PGSIZE, 1);