David Howells <dhowells@xxxxxxxxxx> writes: > Miklos Szeredi <miklos@xxxxxxxxxx> wrote: > >> Overlayfs never locks both upper and lower at the same time, which means >> there's no AB-BA locking dependency. The lock orderings are: > > What you're talking about is not analogous to the situation I'm seeing with > unionmount. > > You actually have three filesystems in overlayfs. The interaction between > overlayfs-and-upperfs and overlayfs-and-lowerfs is the equivalent in > unionmount terms to upperfs-and-lowerfs. This is where the lockdep issue > lies. Normally overlayfs would be immune to this, since lower/upper are different filesystem types. But overlayfs-over-overlayfs would see the same lockdep warnings, right? 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
