From: tytso@mit.edu
To: Akira Fujita <a-fujita@rs.jp.nec.com>
Cc: ext4 development <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH 1/3]ext4: Fix double-free of blocks with EXT4_IOC_MOVE_EXT
Date: Tue, 24 Nov 2009 10:30:25 -0500 [thread overview]
Message-ID: <20091124153024.GJ2183@thunk.org> (raw)
In-Reply-To: <4B03A189.6000109@rs.jp.nec.com>
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@rs.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
prev parent reply other threads:[~2009-11-24 15:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-18 7:26 [PATCH 1/3]ext4: Fix double-free of blocks with EXT4_IOC_MOVE_EXT Akira Fujita
2009-11-24 15:30 ` tytso [this message]
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