On Tuesday 23 December 2008 22:13:21 Peter Zijlstra wrote: > One think that sprung to mind,.. > > IFF we're going to implement percpu_counter with local_t and make > local_t this funny tri-counter thing which has its own error, you need > to fix up bdi_stat_error() - it expects to be an upper bound for the > counter error, getting that wrong _will_ cause deadlocks. It's OK: local_add_return() can't have error; that's why the trival implementation disables interrupts around it. Hope that helps, Rusty. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
