[PVFS-developers] Hardlink issues

[Rob Ross]

I would like to just remove hardlink support.  Not worth the worry.

Rob

On Thu, 29 Apr 2004, Porter Don wrote:

> 
> More 1.6.3pre1 things to consider:
> 
> Unlinking a hard link seems to be removing the data file from the iods.
> This should be fairly easy to fix by checking the reference count on the
> meta file.  I have a patch attached that seems to fix this case.
> 
> Unfortunately, that isn't the only issue.  The pvfs_meta structure doesn't
> store nlink and doesn't send it on a stat request.  This is ok without hard
> links, but the kernel module decrements nlink on the remaining file from 1
> to 0 and then wrapping back to 65535, etc.  
> 
> I suppose this is livable, but pretty wonky and may adversely affect other
> things that expect that to be there.  
> 
> It is my thought that to fix this we would either need to add a field to the
> pvfs_stat structure or to the stat request structure.  
> 
> My recommendation would be to add this to pvfs_stat, since that is really
> the place for it, but ignore the value on disk when reading it and stat the
> actual file for that field. 
> 
> I would really like some feedback on the right thing to do before I try to
> take a crack at fixing  it.
> 
> Thanks,
> Don
> 
>