David Howells <dhowells@xxxxxxxxxx> writes: > I've been dealing with some of Al's issues with the unionmount > patches, but I know he's got more - I just can't remember them all. A couple of questions I have: 1) What happens to the union in a cloned namespace (CLONE_NEWNS)? 2) What's the overhead for non-unioned filesystems if CONFIG_UNION_MOUNTS is enabled? Does it show up in any microbenchmarks? 3) Is there a future strategy for making atomic operations really atomic? E.g. what happens if power is lost in the middle of a copy-up? Or if whiteout of source fails after a successful rename()? 4) Have you looked at overlayfs? Do you have any thoughts about the relative merrits of each solution? 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
