On Tue, 3 Mar 2015, Michal Hocko wrote:
> I think we can safely remove the following code as well, because it is
> anon_vma_clone which is responsible to do all the cleanups.
>
> diff --git a/mm/mmap.c b/mm/mmap.c
> index 943c6ad18b1d..06a6076c92e5 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -774,10 +774,8 @@ again: remove_next = 1 + (end > next->vm_end);
>
> importer->anon_vma = exporter->anon_vma;
> error = anon_vma_clone(importer, exporter);
> - if (error) {
> - importer->anon_vma = NULL;
> + if (error)
> return error;
> - }
> }
> }
>
When Michal proposes this on top of -mm, feel free to add my
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
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