From 5c1ff33640293499f9b16450029c9fb4dc06543e Mon Sep 17 00:00:00 2001
From: Eric Whitney <enwlinux@gmail.com>
Date: Tue, 9 Apr 2013 09:27:31 -0400
Subject: [PATCH] ext4: fix free space estimate in ext4_nonda_switch()

Values stored in s_freeclusters_counter and s_dirtyclusters_counter
are both in cluster units.  Remove the cluster to block conversion
applied to s_freeclusters_counter causing an inflated estimate of
free space because s_dirtyclusters_counter is not similarly
converted.  Rename free_blocks and dirty_blocks to better reflect
the units these variables contain to avoid future confusion.  This
fix corrects ENOSPC failures for xfstests 127 and 231 on bigalloc
file systems.

Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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