nfs: document nfsv4 sillyrename issues
authorJ. Bruce Fields <bfields@redhat.com>
Fri, 15 Jul 2011 23:09:08 +0000 (19:09 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Fri, 15 Jul 2011 23:14:00 +0000 (19:14 -0400)
Somebody working on this code asked what the deal was with NFSv4, since
this comment notes that it's v2/v3's statelessness that requires
sillyrename.  Shouldn't hurt to document the answer.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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