From: "David S. Miller" <davem@redhat.com>
To: Oliver Neukum <oliver@neukum.org>
Cc: zaitcev@redhat.com, greg@kroah.com, arjanv@redhat.com,
jgarzik@redhat.com, tburke@redhat.com,
linux-kernel@vger.kernel.org, stern@rowland.harvard.edu,
mdharm-usb@one-eyed-alien.net, david-b@pacbell.net
Subject: Re: drivers/block/ub.c
Date: Sat, 26 Jun 2004 23:34:23 -0700 [thread overview]
Message-ID: <20040626233423.7d4c1189.davem@redhat.com> (raw)
In-Reply-To: <200406270631.41102.oliver@neukum.org>
On Sun, 27 Jun 2004 06:31:40 +0200
Oliver Neukum <oliver@neukum.org> wrote:
> Am Sonntag, 27. Juni 2004 01:20 schrieb David S. Miller:
> > A ten-fold increase in code size just to access any member
> > of the structure.
> >
> > I think you have no idea how astronomically inefficient the code is
> > which gets generated when you add the packed attribute to a structure.
>
> Are you saying that gcc will generate other code with packed even if
> packed does not change the layout of the structure in question?
That's correct, because the packed attribute also means that the alignment
of any particular instance of the structure is not guanrenteed.
next prev parent reply other threads:[~2004-06-27 6:35 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-26 20:06 drivers/block/ub.c Pete Zaitcev
2004-06-26 20:12 ` drivers/block/ub.c Matthew Dharm
2004-06-27 2:08 ` drivers/block/ub.c Pete Zaitcev
2004-06-27 3:30 ` drivers/block/ub.c Matthew Dharm
2004-07-12 0:10 ` [usb-storage] drivers/block/ub.c Pat LaVarre
2004-06-26 20:35 ` drivers/block/ub.c Oliver Neukum
2004-06-26 21:41 ` drivers/block/ub.c David S. Miller
2004-06-26 21:56 ` drivers/block/ub.c Oliver Neukum
2004-06-26 22:07 ` drivers/block/ub.c David S. Miller
2004-06-26 22:36 ` drivers/block/ub.c Oliver Neukum
2004-06-26 23:20 ` drivers/block/ub.c David S. Miller
2004-06-27 4:31 ` drivers/block/ub.c Oliver Neukum
2004-06-27 6:34 ` David S. Miller [this message]
2004-06-27 10:42 ` drivers/block/ub.c Oliver Neukum
2004-06-27 21:26 ` drivers/block/ub.c David S. Miller
2004-06-28 14:15 ` drivers/block/ub.c Scott Wood
2004-06-28 20:25 ` drivers/block/ub.c David S. Miller
2004-06-28 20:48 ` drivers/block/ub.c Scott Wood
2004-06-28 20:58 ` drivers/block/ub.c David S. Miller
2004-06-28 20:50 ` drivers/block/ub.c Matthew Dharm
2004-06-28 20:59 ` drivers/block/ub.c David S. Miller
2004-06-28 21:01 ` drivers/block/ub.c Pete Zaitcev
2004-06-28 23:52 ` drivers/block/ub.c Matthew Dharm
2004-06-28 20:57 ` drivers/block/ub.c Oliver Neukum
2004-06-28 21:03 ` drivers/block/ub.c David S. Miller
2004-06-28 21:18 ` drivers/block/ub.c Scott Wood
2004-06-28 22:22 ` drivers/block/ub.c David S. Miller
2004-06-28 22:31 ` drivers/block/ub.c Scott Wood
2004-06-28 22:40 ` drivers/block/ub.c Roland Dreier
2004-06-29 1:54 ` drivers/block/ub.c Robert White
2004-06-29 2:15 ` drivers/block/ub.c David S. Miller
2004-06-29 2:49 ` drivers/block/ub.c Robert White
2004-06-29 18:31 ` drivers/block/ub.c Andy Isaacson
2004-07-05 10:01 ` drivers/block/ub.c Roman Zippel
2004-06-29 7:12 ` drivers/block/ub.c Vojtech Pavlik
2004-06-29 1:39 ` drivers/block/ub.c Robert White
2004-06-29 17:02 ` drivers/block/ub.c Kurt Garloff
2004-06-26 22:54 ` drivers/block/ub.c Andries Brouwer
2004-06-26 22:59 ` drivers/block/ub.c Oliver Neukum
2004-06-26 23:08 ` drivers/block/ub.c Andries Brouwer
2004-06-27 5:04 ` drivers/block/ub.c Oliver Neukum
2004-06-27 14:08 ` drivers/block/ub.c Andries Brouwer
2004-06-27 14:24 ` drivers/block/ub.c Oliver Neukum
2004-06-27 15:19 ` drivers/block/ub.c Alan Stern
2004-06-27 15:45 ` drivers/block/ub.c Andries Brouwer
2004-06-28 23:58 ` drivers/block/ub.c Jeff Garzik
2004-06-28 0:10 ` drivers/block/ub.c Pete Zaitcev
2004-06-28 16:01 ` drivers/block/ub.c Alan Stern
2004-06-27 15:23 ` drivers/block/ub.c Andries Brouwer
2004-06-27 16:11 ` drivers/block/ub.c Oliver Neukum
2004-06-26 22:46 ` drivers/block/ub.c Oliver Neukum
2004-06-27 3:52 ` drivers/block/ub.c Alan Stern
2004-06-27 4:05 ` drivers/block/ub.c Alan Stern
2004-06-27 5:02 ` drivers/block/ub.c Greg KH
2004-06-27 15:23 ` drivers/block/ub.c Alan Stern
2004-06-27 20:29 ` drivers/block/ub.c Pete Zaitcev
2004-06-27 21:03 ` drivers/block/ub.c Matthew Dharm
2004-06-28 15:40 ` drivers/block/ub.c Alan Stern
2004-06-28 16:42 ` drivers/block/ub.c Oliver Neukum
2004-06-28 19:50 ` drivers/block/ub.c Alan Stern
2004-06-27 5:35 ` drivers/block/ub.c Matthew Dharm
2004-06-27 15:28 ` drivers/block/ub.c Alan Stern
2004-06-27 22:56 ` drivers/block/ub.c David Brownell
2004-06-27 23:43 ` drivers/block/ub.c Pete Zaitcev
2004-06-28 15:05 ` drivers/block/ub.c David Brownell
2004-06-28 15:56 ` drivers/block/ub.c Alan Stern
2004-06-28 16:23 ` drivers/block/ub.c David Brownell
2004-06-28 16:46 ` drivers/block/ub.c Oliver Neukum
2004-06-28 17:13 ` drivers/block/ub.c David Brownell
[not found] ` <mailman.1088290201.14081.linux-kernel2news@redhat.com>
2004-06-27 23:57 ` drivers/block/ub.c Pete Zaitcev
2004-06-29 11:05 ` drivers/block/ub.c Jeff Garzik
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