On Tue, 2012-05-22 at 18:40 +0200, Thomas Gleixner wrote: > > I'm all for benchmarks. But right now, making all readers pass through a > > single mutex is a huge bottle neck for a lot of loads. Yes, they are > > mostly Java loads, but for some strange reason, our customers seems to > > like to run Java on our RT kernel :-p > > I'm well aware that mmap_sem is a PITA but replacing one nightmare > with the next one is not the best approach. Perhaps we could just change the mmap_sem to use this approach. Create a new type of rwsem/lock for -rt that we can be picky about. Yeah, mmap_sem is a real PITA and it would be nice to have a solution that can be used until we can convert it to an RCU lock. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
