From f5a31e166772a7b9fff6725b697eb8b57633671e Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Mon, 10 Nov 2008 11:47:09 -0500
Subject: [PATCH] Btrfs: Try harder while searching for free space

The loop searching for free space would exit out too soon when
metadata clustering was trying to allocate a large extent.  This makes
sure a full scan of the free space is done searching for only the
minimum extent size requested by the higher layers.

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