From c8e15130e1636f68d5165aa2605b8e9cba0f644c Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 15 Jul 2013 00:09:37 -0400
Subject: [PATCH] ext4: simplify calculation of blocks to free on error

In ext4_ext_map_blocks(), if we have successfully allocated the data
blocks, but then run into trouble inserting the extent into the extent
tree, most likely due to an ENOSPC condition, determine the arguments
to ext4_free_blocks() in a simpler way which is easier to prove to be
correct.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
Reading git-format-patch failed