From: "David S. Miller" <davem@redhat.com>
To: greg@kroah.com
Cc: hch@infradead.org, torvalds@transmeta.com,
linux-kernel@vger.kernel.org, linux-security-module@wirex.com
Subject: Re: [PATCH] remove sys_security
Date: Thu, 17 Oct 2002 13:58:32 -0700 (PDT) [thread overview]
Message-ID: <20021017.135832.54206778.davem@redhat.com> (raw)
In-Reply-To: <20021017205830.GD592@kroah.com>
From: Greg KH <greg@kroah.com>
Date: Thu, 17 Oct 2002 13:58:31 -0700
I've run the numbers myself on OSDL machines, and seen that there is no
measurable overhead for these functions. Sure, there is an extra
function call, and different assembler, I'll never contest that. It's
just that I could not measure it.
Did you look at the _code_? Did you measure the size of even the
non security/*.o object code with/without the hooks? What is the
added overhead?
2.5.x is busting at the seams currently and CONFIG_SECURITY is part of
the reason why.
It is adding stuff to the kernel. Now if you want to call it bloat,
fine. I like calling the USB stack bloat too, and it is bloat for
people who don't use it.
There is a very important fundamental difference to the USB case.
It eats zero space in my kernel when I have no USB devices.
CONFIG_USB=m works as designed!
CONFIG_SECURITY=m still does not exist, so distribution makers have to
make a y vs. n choice.
Argue with your favorite distro if they enable the option that they
shouldn't do that, if they do, don't try to convince me.
I need to convince you to implement this in a way, so that like
USB, there is zero overhead when I enable it as a module. :-)
And I know what my true calling in life is, but unfortunately there isn't
much calling for a professional pan flute player :)
:)
next prev parent reply other threads:[~2002-10-17 21:00 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-17 18:50 Christoph Hellwig
2002-10-17 18:53 ` Greg KH
2002-10-17 18:58 ` Christoph Hellwig
2002-10-17 19:07 ` Greg KH
2002-10-17 20:04 ` Christoph Hellwig
2002-10-17 20:10 ` Greg KH
2002-10-17 20:12 ` Christoph Hellwig
2002-10-18 7:04 ` Crispin Cowan
2002-10-18 7:07 ` David S. Miller
2002-10-18 8:31 ` Crispin Cowan
2002-10-18 8:29 ` David S. Miller
2002-10-18 12:52 ` Christoph Hellwig
2002-10-18 15:04 ` Greg KH
2002-10-19 2:05 ` Crispin Cowan
2002-10-18 7:11 ` Greg KH
2002-10-18 7:28 ` Alexander Viro
2002-10-18 9:02 ` Crispin Cowan
2002-10-18 13:05 ` Christoph Hellwig
2002-10-18 15:14 ` Valdis.Kletnieks
2002-10-18 15:18 ` Christoph Hellwig
2002-10-18 16:30 ` Russell Coker
2002-10-18 16:33 ` Christoph Hellwig
2002-10-18 16:53 ` Greg KH
2002-10-18 16:54 ` Russell Coker
2002-10-18 17:15 ` Stephen Smalley
2002-10-18 22:36 ` Chris Wright
2002-10-21 13:54 ` Mike Wray
2002-10-21 14:09 ` Christoph Hellwig
2002-10-21 16:44 ` Mike Wray
2002-10-21 17:36 ` Christoph Hellwig
2002-10-18 20:36 ` David Wagner
2002-10-18 17:44 ` Stephen Smalley
2002-10-18 16:38 ` Russell Coker
2002-10-18 16:52 ` Richard B. Johnson
2002-10-18 9:09 ` David Wagner
2002-10-18 10:14 ` Russell Coker
2002-10-18 12:50 ` Christoph Hellwig
2002-10-17 20:30 ` Jeff Garzik
2002-10-17 21:00 ` Russell Coker
2002-10-17 21:10 ` Jeff Garzik
2002-10-17 21:37 ` Russell Coker
2002-10-17 21:49 ` Alexander Viro
2002-10-17 22:14 ` Russell Coker
2002-10-17 22:22 ` Andreas Dilger
2002-10-23 0:35 ` Stephen C. Tweedie
2002-10-23 11:43 ` Russell Coker
2002-10-23 11:59 ` Stephen C. Tweedie
2002-10-23 14:27 ` Stephen Smalley
2002-10-23 14:54 ` Stephen C. Tweedie
2002-10-23 16:09 ` Stephen Smalley
2002-10-23 16:24 ` Christoph Hellwig
2002-10-23 16:34 ` Stephen Smalley
2002-10-23 16:36 ` Christoph Hellwig
2002-10-23 16:51 ` Stephen Smalley
2002-10-24 6:26 ` Nathan Scott
2002-10-24 8:45 ` Russell Coker
2002-10-17 20:45 ` Russell Coker
2002-10-21 13:57 ` Alan Cox
2002-10-21 21:12 ` Crispin Cowan
2002-10-21 21:17 ` Greg KH
2002-10-22 12:22 ` Stephen Smalley
2002-10-17 20:20 ` Russell Coker
2002-10-17 20:27 ` Christoph Hellwig
2002-10-17 20:28 ` Greg KH
2002-10-17 19:05 ` Alexander Viro
2002-10-17 20:18 ` David S. Miller
2002-10-17 20:36 ` Greg KH
2002-10-17 20:38 ` David S. Miller
2002-10-17 20:58 ` Greg KH
2002-10-17 20:58 ` David S. Miller [this message]
2002-10-17 22:09 ` Greg KH
2002-10-17 22:07 ` David S. Miller
2002-10-17 22:19 ` Greg KH
2002-10-18 8:00 ` Crispin Cowan
2002-10-18 7:57 ` David S. Miller
2002-10-18 13:08 ` Christoph Hellwig
2002-10-17 21:54 ` David Wagner
2002-10-17 22:36 ` David S. Miller
2002-10-17 23:04 ` Chris Wright
2002-10-17 23:08 ` David S. Miller
2002-10-18 14:24 ` Jakob Oestergaard
2002-10-17 22:51 ` Andreas Steinmetz
2002-10-17 22:51 ` David S. Miller
2002-10-18 17:47 ` Daniel Egger
2002-10-17 23:00 ` Jeff Garzik
2002-10-17 22:56 ` David S. Miller
2002-10-17 23:09 ` Greg KH
2002-10-17 23:10 ` Chris Wright
2002-10-17 23:10 ` Andreas Steinmetz
2002-10-18 13:11 ` Christoph Hellwig
2002-10-17 23:11 ` Greg KH
[not found] <20021017201030.GA384@kroah.com.suse.lists.linux.kernel>
[not found] ` <20021017211223.A8095@infradead.org.suse.lists.linux.kernel>
[not found] ` <3DAFB260.5000206@wirex.com.suse.lists.linux.kernel>
[not found] ` <20021018.000738.05626464.davem@redhat.com.suse.lists.linux.kernel>
[not found] ` <3DAFC6E7.9000302@wirex.com.suse.lists.linux.kernel>
2002-10-18 9:25 ` Andi Kleen
2002-10-18 9:36 ` Crispin Cowan
2002-10-18 9:44 ` Andi Kleen
2002-10-18 9:55 ` Russell Coker
2002-10-18 10:13 ` Andi Kleen
2002-10-18 17:24 ` Rik van Riel
2002-10-18 11:43 ` Andreas Ferber
[not found] <20021023155457.L2732@redhat.com.suse.lists.linux.kernel>
[not found] ` <Pine.GSO.4.33.0210231112420.7042-100000@raven.suse.lists.linux.kernel>
2002-10-23 16:33 ` Andi Kleen
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