From: Andy Adamson <andros@netapp.com>
Date: Tue, 1 Mar 2011 01:34:20 +0000 (+0000)
Subject: NFSv4.1: filelayout async error handler
X-Git-Tag: v2.6.39-rc1~443^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cbdabc7f8bf14ca1d40ab1cb86f64b3bc09716e8;p=pandora-kernel.git

NFSv4.1: filelayout async error handler

Use our own async error handler.
Mark the layout as failed and retry i/o through the MDS on specified errors.

Update the mds_offset in nfs_readpage_retry so that a failed short-read retry
to a DS gets correctly resent through the MDS.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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