From: Jeff Layton <jlayton@redhat.com>
Date: Fri, 22 Feb 2008 19:50:01 +0000 (-0500)
Subject: NFS: clean up short packet handling for NFSv4 readdir
X-Git-Tag: v2.6.26-rc1~1082^2^2~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bda2cdf484a00e52b0ed925e99d4bf4696b2c7a;p=pandora-kernel.git

NFS: clean up short packet handling for NFSv4 readdir

Currently, the NFS readdir decoders have a workaround for buggy servers
that send an empty readdir response with the EOF bit unset. If the
server sends a malformed response in some cases, this workaround kicks
in and just returns an empty response rather than returning a proper
error to the caller.

This patch does 3 things:

1) have malformed responses with no entries return error (-EIO)

2) preserve existing workaround for servers that send empty
   responses with the EOF marker unset.

3) Add some comments to clarify the logic in decode_readdir().

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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