[ 64/73] ext4: undo ext4_calc_metadata_amount if we fail to claim space

3.2-stable review patch. If anyone has any objections, please let me know. -- From: Theodore Ts'o commit 03179fe92318e7934c180d96f12eff2cb36ef7b6 upstream. The function ext4_calc_metadata_amount() has side effects, although it's not obvious from its function name. So if we

[ 64/73] ext4: undo ext4_calc_metadata_amount if we fail to claim space

3.2-stable review patch. If anyone has any objections, please let me know. -- From: Theodore Ts'o ty...@mit.edu commit 03179fe92318e7934c180d96f12eff2cb36ef7b6 upstream. The function ext4_calc_metadata_amount() has side effects, although it's not obvious from its function