Bricoles/xv6-riscv
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Make mappages fit on the page

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This commit is contained in:
Austin Clements 2011-09-02 14:11:16 -04:00
parent 82bb0b56c6
commit cf7b670293
1 changed files with 1 additions and 2 deletions
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3
vm.c
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@ -77,8 +77,7 @@ mappages(pde_t *pgdir, void *va, uint size, uint pa,
a = (char *) PGROUNDDOWN((uint) va);
last = (char *) PGROUNDDOWN(((uint) va) + size - 1);
for(;;){
pte = walkpgdir(pgdir, a, alloc);
if(pte == 0)
if((pte = walkpgdir(pgdir, a, alloc) == 0)
return -1;
if(*pte & PTE_P)
panic("remap");