mem 219 kernel/vm.c char *mem; mem 227 kernel/vm.c mem = kalloc(); mem 228 kernel/vm.c if(mem == 0){ mem 232 kernel/vm.c memset(mem, 0, PGSIZE); mem 233 kernel/vm.c if(mappages(pagetable, a, PGSIZE, (uint64)mem, PTE_R|PTE_U|xperm) != 0){ mem 234 kernel/vm.c kfree(mem); mem 302 kernel/vm.c char *mem; mem 311 kernel/vm.c if((mem = kalloc()) == 0) mem 313 kernel/vm.c memmove(mem, (char*)pa, PGSIZE); mem 314 kernel/vm.c if(mappages(new, i, PGSIZE, (uint64)mem, flags) != 0){ mem 315 kernel/vm.c kfree(mem); mem 455 kernel/vm.c uint64 mem; mem 464 kernel/vm.c mem = (uint64) kalloc(); mem 465 kernel/vm.c if(mem == 0) mem 467 kernel/vm.c memset((void *) mem, 0, PGSIZE); mem 468 kernel/vm.c if (mappages(p->pagetable, va, PGSIZE, mem, PTE_W|PTE_U|PTE_R) != 0) { mem 469 kernel/vm.c kfree((void *)mem); mem 472 kernel/vm.c return mem; mem 2732 user/usertests.c {mem, "mem"},