[V2] powerpc/mm: Update mm context addr limit correctly.

[Michael Ellerman]

On Tue, 2017-04-18 at 07:01:27 UTC, "Aneesh Kumar K.V" wrote:
> We added the addr < TASK_SIZE check to avoid updating addr_limit unnecessarily and
> also to avoid calling slice_flush_segments on all the cpus. This had the side
> effect of having different behaviour when using an addr value above TASK_SIZE
> before updating addr_limit and after updating addr_limit as show by below
> output:
...
> 
> This also bring the ABI in-line with what is proposed on x86. ie, to use
> a hint addr above 128TB up to and including (2^64)-1 as an indication to search
> the full address space.
> 
> Fixes: f4ea6dcb08ea2c (powerpc/mm: Enable mappings above 128TB)
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/321f7d29e5163d7f1c9c0b705acc45

cheers