On Tue, Jun 3, 2014 at 11:00 AM, David Howells <dhowells@xxxxxxxxxx> wrote: > My suspicion is that overlayfs is doing stuff to the lower layer whilst > holding a lock on the upper layer or vice versa. No. It's holding the overlayfs i_mutex and then getting either the upper *or* the lower i_mutex, but never both. So it's a simple and unproblematic ordering. Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html