linux-kernel - Re: Is VFS behavior fine?

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Date:	Thu, 03 Jul 2008 11:29:27 -0300
From:	Breno Leitao <leitao@...ux.vnet.ibm.com>
To:	Artem.Bityutskiy@...ia.com
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	linux-fsdevel@...r.kernel.org,
	Hunter Adrian <ext-Adrian.Hunter@...ia.com>
Subject: Re: Is VFS behavior fine?

Artem Bityutskiy wrote:
> The result of it was that the '->delete_inode()' operation for
> the 'xxx' directory inode is not called. It is not called even
> after 'cd /'. However, if we do not do the 'touch tmp' command
> (which actually fails), '->delete_inode()' _is_ called for 'xxx'.
>
> So 'touch tmp' has a side effect. You may notice this by watching
> 'cat /proc/slabinfo | grep dentry' while running the following
> script:
I tried to reproduce this on my system using an EXT3 filesystem, leaving 
the script running the entire night. When I wake up I found that the 
system disk was full. So, besides the memory issue, this problem also 
consume some bytes on your filesystem.
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