Messages in this thread | | | Date | Fri, 8 Jun 2018 09:51:34 -0700 | From | "Paul E. McKenney" <> | Subject | Re: Simplifying our RCU models |
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On Tue, Apr 10, 2018 at 04:44:25PM -0700, Paul E. McKenney wrote: > On Thu, Mar 08, 2018 at 12:45:24PM -0800, Paul E. McKenney wrote: > > On Wed, Mar 07, 2018 at 10:48:50AM -0800, Linus Torvalds wrote: > > > On Wed, Mar 7, 2018 at 7:54 AM, Paul E. McKenney > > > <paulmck@linux.vnet.ibm.com> wrote: > > > > > > > > Ah, and any thoughts on how best to get feedback from the various people > > > > who would need to reprogram their fingers? Or is everyone already on > > > > board with changing these various names? > > > > > > I really would prefer to not see massive re-naming unless there is a > > > really good reason for it. > > > > > > I'm all for simplifying RCU from a million different versions down to > > > just a few thousand, but I'm definitely not convinced we want to do > > > any search-and-replace. > > > > I am currently in the design (more accurately, reredesign phase) for > > the simplification. It is quite possible that there is a good reason > > for at least some renaming, but in that case, I would come back later > > with that as a separate proposal. > > And I really am still working on this. It is a bit tricky, but still > looks doable. More likely to be ready for 4.19 than 4.18, though.
I suppose it is well past time for an update...
I believe I have the preparation work done (famous last words!), and I am now working on making rcutorture properly test the resulting compound RCU read-side critical sections. User-level testing might be necessary (and has been for some of the preparatory work). The ink-on-paper prototype is starting to look promising, and I expect to get the corresponding prototype patch posted by the end of this month.
A bit trickier than I expected (as usual), but still looking doable.
Thanx, Paul
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