Re: [PATCH v2] PC, KVM, CMA: Fix regression caused by wrong get_order() use

[Alexander Graf]

On 14.08.14 07:13, Aneesh Kumar K.V wrote:
> Alexey Kardashevskiy <aik@xxxxxxxxx> writes:
>
> > fc95ca7284bc54953165cba76c3228bd2cdb9591 claims that there is no
> > functional change but this is not true as it calls get_order() (which
> > takes bytes) where it should have called ilog2() and the kernel stops
> > on VM_BUG_ON().
> >
> > This replaces get_order() with order_base_2() (round-up version of ilog2).
> >
> > Suggested-by: Paul Mackerras <paulus@xxxxxxxxx>
> > Cc: Alexander Graf <agraf@xxxxxxx>
> > Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> > Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
> > Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxxxx>
> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>

So this affects 3.17?


Alex

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