[OpenAFS] Version of du that doesn't traverse AFS mount points?

Simon Wilkinson sxw@inf.ed.ac.uk
Wed, 27 Aug 2008 07:57:49 +0100

On 27 Aug 2008, at 02:18, Chas Williams (CONTRACTOR) wrote:

> In message  
> <F17752FC8F21B8428FF70A2DA2B2E24606990704BB@MERCMBX11.na.sas.com>,Mike 
>  Shaddock writes:
>> I'm looking for a version of du where the -x option (skip  
>> directories on different file systems) doesn't traverse an AFS  
>> mount poi
>> nt.  Haven't been able to find anything via searching, so I  
>> thought I'd ask here.
> i have an interesting idea.  on linux this would be pretty easy.
> after generic_fill_attr() we could encode the volumeid in the i_dev
> field instead of the s_dev field from the superblock.  this should  
> make
> this work.  i cant think of anything it would break.

Unless I'm missing something, this breaks anything that relies on  
stat's st_dev field to determine whether a file is in AFS or not.  
Filedrawers is one example, and I'm sure there are others.