From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>, linux-kernel@vger.kernel.org
Subject: Re: device struct bloat
Date: Sun, 04 Nov 2007 21:29:18 +0100 [thread overview]
Message-ID: <1194208158.5911.63.camel@lappy> (raw)
In-Reply-To: <20071103124823.6059640e@shemminger-laptop>
On Sat, 2007-11-03 at 12:48 -0700, Stephen Hemminger wrote:
> The sizeof(struct device) is way too big, especially in the network device case.
> We want to support 1000's of device's and the change from class_device to
> net_device has caused needless bloat.
>
> sizeof(struct device) = 272
> sizeof(struct class_device) = 92
> * not the class_id in class_device could also be removed or changed to
> a ptr, since it is redundant for net_devices.
The thing that surprised me most was that it contains a struct
semaphore, Greg, is that really needed?
next prev parent reply other threads:[~2007-11-04 20:30 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-03 19:48 device struct bloat Stephen Hemminger
2007-11-03 23:14 ` Greg KH
2007-11-04 20:29 ` Peter Zijlstra [this message]
2007-11-05 3:58 ` Greg KH
2007-11-05 10:46 ` Peter Zijlstra
2007-11-05 10:57 ` Peter Zijlstra
2007-11-05 22:33 ` Stefan Richter
2007-11-05 22:49 ` Greg KH
2007-11-06 1:38 ` [linux-usb-devel] " David Brownell
2007-11-06 9:43 ` Peter Zijlstra
2007-11-06 9:48 ` Peter Zijlstra
2007-11-06 15:36 ` Alan Stern
2007-11-06 15:58 ` Peter Zijlstra
2007-11-06 16:32 ` Alan Stern
2007-11-06 17:19 ` Peter Zijlstra
2007-11-06 18:05 ` Alan Stern
2007-11-06 18:57 ` Peter Zijlstra
2007-11-07 16:42 ` Alan Stern
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