From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH 1/3] IMA: move read/write counters into struct inode
Date: Wed, 20 Oct 2010 16:38:45 +0200
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	linux-kernel@vger.kernel.org,
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To: Eric Paris <eparis@redhat.com>
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* Eric Paris <eparis@redhat.com> wrote:

> Executive summary of the day's work:
> Yesterday morning: 944 bytes per inode in core
> Yesterday night: 24 bytes per inode in core
> Tonight: 4 bytes per inode in core.
> 
> That's a x236 time reduction in memory usage.  No I didn't even start looking at a 
> freezer.  Which could bring that 4 down to 0, but would add a scalability penalty 
> on all inodes when IMA was enabled.

Why not use inode->i_security intelligently? That already exists so that way it's 0 
bytes.

Thanks,

	Ingo