Hi everyone, I've pushed out a new integration-test branch, and it includes a new reader/writer locking scheme for the btree locks. We've seen a number of benchmarks dominated by contention on the root node lock. This changes our locks into a simple reader/writer lock. They are based on mutexes so that we still take advantage of the mutex adaptive spins for write locks (rwsemaphores were much slower). I'm also sending the individual commits, please do take a look. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
