On Mon, Nov 26, 2012 at 3:29 AM, Ian Kent <ra...@themaw.net> wrote: >> > > MS_UNBINDABLE says: skip this mount when copying a mount tree, such >> > > as when the mount namespace is cloned. >> > > >> > > If you set MS_UNBINDABLE on autofs mounts then they will simply not >> > > appear in a cloned namespace. Which sounds like a good idea, no? >> > >> > Good point. If the desire is for a mount to be managed by autofs >> > setting MS_UNBINDABLE seems required. >> >> Arrgh, I know that's something I should have looked into long ago. >> The fact is that autofs mounts are directly related to a specific path >> defined by automount maps that are associated with the daemon so bind >> mounting them elsewhere makes no sense. > > Except, AFAICS, they do appear in the clone.
Hmm, yes, apparently the semantics of MS_UNBINDABLE only apply to actual bind mounts not to namespace cloning. Even though the two operations are closely related. Not sure why this is so, but it is probably not a good idea to change the semantics at this point. Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
