linux-ext4 - Ext4 Punch Hole Change Summary v6->v7

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Date:	Sat, 07 May 2011 16:53:50 -0700
From:	Allison Henderson <achender@...ux.vnet.ibm.com>
To:	Ext4 Developers List <linux-ext4@...r.kernel.org>
CC:	Jan Kara <jack@...e.cz>
Subject: Ext4 Punch Hole Change Summary v6->v7

Hi All,

This is an updated copy of punch hole that has the while loop 
optimization for ext4_ext_remove_space (in patch 3/5).  The optimization 
limits the tree searching to only the extents that are to be removed 
instead of searching the entire tree.

Also, I updated my base code to the latest copy of the ext4 code, and 
one of the punch hole test cases found a null pointer bug when trying to 
create a directory when the disk is full.  It is not directly related to 
punch hole, so I put it in a separate patch.  Jan, this looks like it 
may have been related to the "[PATCH 1/2] ext4: Fix fs corruption when 
make_indexed_dir() fails" patch.  Would you mind taking a look at it and 
giving it your OK if everything looks good?  Thx!

Allison Henderson
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