On Wed, 8 Apr 2009, Jan Blunck wrote: > This patch removes the stupid "Read locks within the self-held write lock > succeed" behaviour. This is breaking in mm_take_all_locks() since it is quite > common to ensure that a lock is taken with BUG_ON(down_read_trylock(&mm->mmap_sem)). Good catch. There are some more oddballs in that file, which we missed when we moved from 26 to 29 - we dropped the rwlocks stuff and that cleaned up that area. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html