Messages in this thread | | | Date | Thu, 17 Dec 2009 20:55:30 +0100 | From | Andi Kleen <> | Subject | Re: [mm][RFC][PATCH 0/11] mm accessor updates. |
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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.
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