Suppress kernel messages "NFSv4 fileid > 32bits"

[Rafal Lukawiecki]

> My only suggestion is that the message should be generated at least once,
> since it does indicate that your mount is "broken". When the fileid (i-node#)
> is truncated to 32bits, it is possible for two different fileids to be mapped to
> the same number. The most common error I am aware of is the fts(3) library
> functions generating "cycle in directory structure" errors.
> 
> It would have to be a direct commit to stable/11, but if Colin wants to do it,
> I don't have a problem with it, rick
> 

That sounds very reasonable to me. If I knew the code of nfs_commonsubs.c better, I would volunteer, but I suppose it would be safer in Colin’s hands.

Many thanks,
Rafal