On Sat, 23 Jul 2016 18:49:06 +1000 Benjamin Herrenschmidt <b...@kernel.crashing.org> wrote:
> 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 ? I don't think this has changed, but I look at the writers now, which aren't synchronized by mm sem. But neither are readers under the slice_convert_lock, so I'm looking at what the locking actually is. Is it just using atomicity of dword stores vs loads? Thanks, Nick _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
