Subject: Re: [v3, 3/3] powerpc/mm/cxl: Add the fault handling cpu to mm cpumask

From: Michael Ellerman <[email-masked]>
Date: Mon, 21 Aug 2017 23:39:10 +1000 (AEST)

On Thu, 2017-07-27 at 06:24:55 UTC, "Aneesh Kumar K.V" wrote:
> We use mm cpumask for serializing against lockless page table walk. Anybody
> who is doing a lockless page table walk is expected to disable irq and only
> cpus in mm cpumask is expected do the lockless walk. This ensure that
> a THP split can send IPI to only cpus in the mm cpumask, to make sure there
> are no parallel lockless page table walk.
> 
> Add the CAPI fault handling cpu to the mm cpumask so that we can do the lockless
> page table walk while inserting hash page table entries.
> 
> Reviewed-by: Frederic Barrat <[email-masked]>
> Signed-off-by: Aneesh Kumar K.V <[email-masked]>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/0f4bc0932e51817105fdee77a46680

cheers