>Nope, we don't have any such guarantee.
>
>Think about somebody unmapping a _part_ of the first vma in the process
>address space. "prev" will be NULL, but that doesn't mean that mm->mmap
>will be after our start-end space: in fact, mm->mmap will be the "partial"
>vma that we truncated that will be before "start".
Ok agreed. Thanks.
Andrea Arcangeli
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