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

Benjamin Herrenschmidt benh at kernel.crashing.org
Sat Jul 23 18:49:06 AEST 2016

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 ?


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