BUG 797255 - fsr_xfs does not work when passed a file name

[pv@xxxxxxxxxxxxx (lord@xxxxxxx)]

View Incident: 
http://co-op.engr.sgi.com/BugWorks/code/bwxquery.cgi?search=Search&wlong=1&view_type=Bug&wi=797255

Submitter : lord                      Submitter Domain : sgi.com            
Assigned Engineer : btg               Assigned Domain : sgi.com             
Assigned Group : xfs-linux            Category : software                   
Customer Reported : F                 Priority : 3                          
Project : xfs-linux                   Status : open                         
Description :
One of the command options on fsr_xfs is to defragment an
individual file. This does not work, it gets as far as the
open by handle code which fails because the file is not
a directory. The open by handle code needs a directory to
work from. fsr probably needs changing to use a different
file descriptor than the exact file we are attempting to
defragment.