linux-ext4 - Re: [PATCH 1/3]ext4: Fix double-free of blocks with EXT4_IOC_MOVE

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Message-ID: <20091124153024.GJ2183@thunk.org>
Date:	Tue, 24 Nov 2009 10:30:25 -0500
From:	tytso@....edu
To:	Akira Fujita <a-fujita@...jp.nec.com>
Cc:	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH 1/3]ext4: Fix double-free of blocks with
 EXT4_IOC_MOVE_EXT

On Wed, Nov 18, 2009 at 04:26:01PM +0900, Akira Fujita wrote:
> ext4: Fix double-free of blocks with EXT4_IOC_MOVE_EXT
> 
> From: Akira Fujita <a-fujita@...jp.nec.com>
> 
> ext4_move_extent() calls ext4_discard_preallocations() to discard inode PAs
> of orig and donor inodes in its beginning.
> But the following case (1-4 steps) triggers the double-free of blocks,
> so move ext4_discard_preallocations() to the end of ext4_move_extents().

Thanks, applied to the ext4 patch queue.

					- Ted
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