[RFC][PATCH 0/5] NFS: trace points added to mounting path

[Greg Banks]

J. Bruce Fields wrote:
> On Thu, Jan 22, 2009 at 10:59:49AM -0500, Steve Dickson wrote:
>   
>> J. Bruce Fields wrote:
>>     
>>
>> Interesting.... Store something like a reason code (similar to what they have
>> in he Kerberos)
>>     
>
> Maybe.
>
>   
>> in somewhere in the proc file system? 
>>     
>
> But then I don't know how you'd associate it with a particular mount
> attempt.
>
>
>   
You could do something truly awful like add a new code in the unused
bits of the errno value returned from mount.  It would confuse an
unmodified userspace, but reporting "Unknown Error" isn't much less
useful than "I/O Error".

-- 
Greg Banks, P.Engineer, SGI Australian Software Group.
the brightly coloured sporks of revolution.
I don't speak for SGI.