From: Benny Halevy <bhalevy@panasas.com>
Date: Mon, 15 Dec 2008 17:42:03 +0000 (+0200)
Subject: nfsd: last_byte_offset
X-Git-Tag: v2.6.29-rc1~177^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87df4de8073f922a1f643b9fa6ba0412d5529ecf;p=pandora-kernel.git

nfsd: last_byte_offset

refactor the nfs4 server lock code to use last_byte_offset
to compute the last byte covered by the lock.  Check for overflow
so that the last byte is set to NFS4_MAX_UINT64 if offset + len
wraps around.

Also, use NFS4_MAX_UINT64 for ~(u64)0 where appropriate.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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