From: Yan, Zheng <zheng.z.yan@linux.intel.com>
Date: Tue, 18 Jan 2011 05:34:40 +0000 (+0800)
Subject: Btrfs: Fix page count calculation
X-Git-Tag: v2.6.38-rc4~2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a90983dbdcb2f4f48c0d771d8e5b4d88f27fae6;p=pandora-kernel.git

Btrfs: Fix page count calculation

take offset of start position into account when calculating page count.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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