From 48802c8ae2a9d618ec734a61283d645ad527e06c Mon Sep 17 00:00:00 2001
From: Jeff Liu <jeff.liu@oracle.com>
Date: Sun, 18 Sep 2011 10:34:02 -0400
Subject: [PATCH] BTRFS: Fix lseek return value for error

The recent reworking of btrfs' lseek lead to incorrect
values being returned.  This adds checks for seeking
beyond EOF in SEEK_HOLE and makes sure the error
values come back correct.

Andi Kleen also sent in similar patches.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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