Subject: Re: [PATCH] powerpc/64: implement a slice mask cache

From: Benjamin Herrenschmidt <[email-masked]>
Date: Sat, 23 Jul 2016 18:49:06 +1000

On Sat, 2016-07-23 at 17:10 +1000, Nicholas Piggin wrote:
> I wanted to avoid doing more work under slice_convert_lock, but
> we should just make that a per-mm lock anyway shouldn't we?

Aren't the readers under the mm sem taken for writing or has this
changed ?

Cheers,
Ben.