Messages in this thread | | | Subject | Re: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13] | From | Trond Myklebust <> | Date | Tue, 05 Sep 2006 08:47:52 -0400 |
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On Tue, 2006-09-05 at 10:57 +0100, David Howells wrote: > Trond Myklebust <trond.myklebust@fys.uio.no> wrote: > > > Why the hell is it doing a mkdir in the first place? > > I think the problems it is solving are these: > > (1) What happens if "/" is _not_ exported? > > (2) What happens if some intermediate directory (say "/usr") is not > accessible? > > > In the first case, the automounter just makes "usr" and "usr/src", say, in the > autofs filesystem, and then mounts server:/usr/src on that.
That is fine. As long as it is doing so in the _autofs_ filesystem. A call to 'stat()' should suffice to tell if this is the case.
> In the second case, the automounter relies on NFS letting it make intervening > directories it couldn't otherwise access to span the gap between "/" and > "src".
If the directory isn't accessible, then autofs shouldn't be trying to override that. It certainly shouldn't be doing so by trying to create the directory.
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