Re: [PATCH 1/5] vfs: syscall: Add fsinfo() to query filesystem information

[Theodore Y. Ts'o]

On Wed, Aug 01, 2018 at 05:14:01PM +0100, David Howells wrote:
> 
> Some attributes (such as the servers backing a network filesystem) can have
> multiple values.  These can be enumerated by setting params->Nth and
> params->Mth to 0, 1, ... until ENODATA is returned.

How does the caller know whether or not a particular attribute has
multiple values?  Is that a fundamental attribute of a particular
attribute?  (e.g., the documentation for each attribute must state
whether or not that attribute returns multiple attributes or not)

	       	    	      	      - Ted