Re: [mm][RFC][PATCH 0/11] mm accessor updates.

Andi Kleen
2009-12-17T19:55:34Z

On Thu, Dec 17, 2009 at 11:08:04AM -0800, Paul E. McKenney wrote:
> On Thu, Dec 17, 2009 at 06:53:39PM +0100, Andi Kleen wrote:
> > > OK, I have to ask...
> > >
> > > Why not just use the already-existing SRCU in this case?
> >
> > You right, SRCU could work.
> >
> > Still needs a lot more work of course.
>
> As discussed with Peter on IRC, I have been idly thinking about how I
> would implement SRCU if I were starting on it today. If you would like
> to see some specific improvements to SRCU, telling me about them would
> greatly increase the probability of my doing something about them. ;-)

I think actual RCU improvements are pretty low on the list for this
one, so far we're not even completely sure how it would all work
on the high level.

mmap_sem is a nasty lock, handlings lots of different things.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.