From: Dave Kleikamp <dave.kleikamp@oracle.com>
Date: Thu, 15 Aug 2013 20:36:49 +0000 (-0500)
Subject: jfs: fix readdir cookie incompatibility with NFSv4
X-Git-Tag: v3.2.51~99
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a103ab32f1683201ab4b61ca53d199be4562a62d;p=pandora-kernel.git

jfs: fix readdir cookie incompatibility with NFSv4

commit 44512449c0ab368889dd13ae0031fba74ee7e1d2 upstream.

NFSv4 reserves readdir cookie values 0-2 for special entries (. and ..),
but jfs allows a value of 2 for a non-special entry. This incompatibility
can result in the nfs client reporting a readdir loop.

This patch doesn't change the value stored internally, but adds one to
the value exposed to the iterate method.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
[bwh: Backported to 3.2:
 - Adjust context
 - s/ctx->pos/filp->f_pos/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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