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VM: munmap fix

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This commit is contained in:
David van Moolenbroek 2012-10-13 19:07:47 +02:00
parent e12fdad66d
commit 46fca87456
1 changed files with 6 additions and 4 deletions
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10
servers/vm/mmap.c
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@ -354,20 +354,22 @@ int do_munmap(message *m)
vmp = &vmproc[n];
if(m->m_type == VM_SHM_UNMAP) {
if(m->m_type == VM_UNMAP_PHYS) {
addr = (vir_bytes) m->VMUP_VADDR;
} else if(m->m_type == VM_SHM_UNMAP) {
addr = (vir_bytes) m->VMUN_ADDR;
} else addr = (vir_bytes) m->VMUM_ADDR;
if(!(vr = map_lookup(vmp, addr, NULL))) {
printf("VM: unmap: virtual address %p not found in %d\n",
m->VMUM_ADDR, vmp->vm_endpoint);
printf("VM: unmap: virtual address 0x%lx not found in %d\n",
addr, target);
return EFAULT;
}
if(addr % VM_PAGE_SIZE)
return EFAULT;
if(m->m_type == VM_SHM_UNMAP) {
if(m->m_type == VM_UNMAP_PHYS || m->m_type == VM_SHM_UNMAP) {
len = vr->length;
} else len = roundup(m->VMUM_LEN, VM_PAGE_SIZE);