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fixes #22
This commit is contained in:
NAKAMURA Gou
2014-07-01 18:52:31 +09:00
parent 90aaf9dc9c
commit 11bb334bd4
7 changed files with 335 additions and 0 deletions
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33
kernel/process.c
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@@ -936,6 +936,39 @@ struct vm_range *previous_process_memory_range(
return prev;
}
int extend_up_process_memory_range(struct process_vm *vm,
struct vm_range *range, uintptr_t newend)
{
int error;
struct vm_range *next;
dkprintf("exntend_up_process_memory_range(%p,%p %#lx-%#lx,%#lx)\n",
vm, range, range->start, range->end, newend);
if (newend <= range->end) {
error = -EINVAL;
goto out;
}
if (vm->region.user_end < newend) {
error = -EPERM;
goto out;
}
next = next_process_memory_range(vm ,range);
if (next && (next->start < newend)) {
error = -ENOMEM;
goto out;
}
error = 0;
range->end = newend;
out:
dkprintf("exntend_up_process_memory_range(%p,%p %#lx-%#lx,%#lx):%d\n",
vm, range, range->start, range->end, newend, error);
return error;
}
int change_prot_process_memory_range(struct process *proc,
struct vm_range *range, unsigned long protflag)
{