From: J. Bruce Fields <bfields@redhat.com>
Date: Fri, 21 Jun 2013 15:48:11 +0000 (-0400)
Subject: nfsd4: fix decoding of compounds across page boundaries
X-Git-Tag: v3.2.49~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f956347bb3d631aac4cefabc764cef43fa8e3c47;p=pandora-kernel.git

nfsd4: fix decoding of compounds across page boundaries

commit 247500820ebd02ad87525db5d9b199e5b66f6636 upstream.

A freebsd NFSv4.0 client was getting rare IO errors expanding a tarball.
A network trace showed the server returning BAD_XDR on the final getattr
of a getattr+write+getattr compound.  The final getattr started on a
page boundary.

I believe the Linux client ignores errors on the post-write getattr, and
that that's why we haven't seen this before.

Reported-by: Rick Macklem <rmacklem@uoguelph.ca>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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