On Wed, 2008-02-20 at 09:31 -0700, Matthew Wilcox wrote: > On Wed, Feb 20, 2008 at 04:04:22PM +0000, Al Viro wrote: > > It's less about the form of representation (after all, we generate poll > > events when contents of that sucker changes, so one *can* get a consistent > > snapshot of the entire thing) and more about having it self-contained > > when we have namespaces in the play. > > > > IOW, the data in there should give answers to questions that make sense. > > "Do events get propagated from this vfsmount I have to that vfsmount I have?" > > is a meaningful one; ditto for "are events here propagated to somewhere I > > don't see?" or "are events getting propagated here from somewhere I don't > > see?". > > Why do those last two questions deserve an answer? How will a person's > or application's behaviour be affected by whether a change will > propagate to something they don't know about and can't see? Well, I do not want to be surprised to see a mount suddenly show up in my namespace because of some action by some other user in some other namespace. Its going to happen anyway if the namespace is forked of a namespace that had shared mounts in them. However I would rather prefer to know in advance the spots (mounts) where such surprises can happen. Also I would prefer to know how my actions will effect mounts in other namespaces. RP > - 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
