On Fri, 2008-06-20 at 09:00 -0400, Jeff Moyer wrote:
> Ian Kent <[EMAIL PROTECTED]> writes:
> 
> > autofs v5 dierct and offset mounts within an autofs filesystem are
> > triggered by existing autofs triger mounts so the mount point dentry
> > must be positive. If the mount point dentry is negative then the
> > trigger doesn't exist so we can return fail immediately.
> 
> What are the conditions that lead us here in that case?

A multi-mount that has no root mount gets a lookup for an offset that
doesn't exist (ie. the trigger hasn't been mounted). Then ->lookup()
will create a negative dentry and send a mount request to the daemon. It
is a bit of a special case but it helps a little.

Ian


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