From cc0c55384796b422133ff1f21646835b31590f88 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 25 Oct 2007 15:42:57 -0400
Subject: [PATCH] Btrfs: Fix split_leaf to detect when it is extending an item

When making room for a new item, it is ok to create an empty leaf, but
when making room to extend an item, split_leaf needs to make sure it
keeps the item we're extending in the path and make sure we don't end up
with an empty leaf.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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