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Date: Tue, 11 Dec 2012 09:57:50 -0500
From: Josef Bacik <jbacik@fusionio.com>
To: Liu Bo <bo.li.liu@oracle.com>
CC: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: [PATCH] Btrfs: put delayed iput tracking list inside in-memory
 inode
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On Fri, Nov 30, 2012 at 04:24:43AM -0700, Liu Bo wrote:
> This can save us a dynamic memory allocation/free.
> 

You can have multiple outstanding delayed iputs per inode, so this will result
in inodes still being in use on unmount, so this isn't going to work.

Josef