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From: Greg KH <gregkh@linuxfoundation.org>
To: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Jidong Xiao <jidong.xiao@gmail.com>,
	Kernel development list <linux-kernel@vger.kernel.org>
Subject: Re: Can we move device drivers into user-space?
Date: Fri, 24 Feb 2012 09:17:52 -0800	[thread overview]
Message-ID: <20120224171752.GB9485@kroah.com> (raw)
In-Reply-To: <1330103229.23014.130.camel@groeck-laptop>

On Fri, Feb 24, 2012 at 09:07:09AM -0800, Guenter Roeck wrote:
> How about dropping UIO support from the kernel ? That would make more
> sense to me.

Again, UIO solves a real need, are you to tell the users of that code
that somehow we are now not going to support them anymore?

UIO was created when Thomas and I sat in the back of a conference
presentation and saw, for the umpteenth time, a presentation by someone
who was trying to write userspace drivers, and obviously didn't know
what they were doing.

UIO provides a framework that actually works (unlike all of the previous
research papers were trying to do), and is used in real systems (laser
welding robots!) every day, manufacturing things that you use and rely
on.

You remove UIO at the risk of pissing off those robots, the choice is
yours, I know I'm not going to do it...

greg k-h

  reply	other threads:[~2012-02-24 17:18 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-23  4:56 Can we move device drivers into user-space? Jidong Xiao
2012-02-23 15:57 ` Cong Wang
2012-02-23 16:34   ` Jidong Xiao
2012-02-23 20:48     ` david
2012-02-23 21:01       ` Jidong Xiao
2012-02-24 18:21         ` Mauro Carvalho Chehab
2012-02-25 15:10           ` Eduard - Gabriel Munteanu
2012-02-26  0:06             ` Mauro Carvalho Chehab
2012-02-26  0:29               ` Richard Yao
2012-02-27 11:31                 ` Mauro Carvalho Chehab
2012-02-26  1:58               ` Dr. David Alan Gilbert
2012-02-26  3:34                 ` arts zhao
2012-02-27 11:29                 ` Mauro Carvalho Chehab
2012-02-25 15:31           ` Richard Yao
2012-02-23 21:18       ` Roland Dreier
2012-02-24 15:19 ` Jidong Xiao
2012-02-24 15:38   ` Greg KH
2012-02-24 16:38     ` Jidong Xiao
2012-02-24 16:54       ` Greg KH
2012-02-24 17:06         ` Jidong Xiao
2012-02-24 17:13           ` Greg KH
2012-02-24 17:21             ` Jidong Xiao
2012-02-24 17:31               ` Greg KH
2012-02-25  2:33             ` Richard Yao
2012-02-25  4:28               ` Jidong Xiao
2012-02-24 17:10         ` Al Viro
2012-02-25 19:23         ` Jidong Xiao
2012-02-25 20:55           ` Greg KH
2012-02-25 23:43             ` Jidong Xiao
2012-02-26 17:40               ` Greg KH
2012-02-26 22:46             ` Greg KH
2012-02-27 11:17       ` Bernd Petrovitsch
2012-02-24 17:07     ` Guenter Roeck
2012-02-24 17:17       ` Greg KH [this message]
2012-02-24 17:47         ` Guenter Roeck
2012-02-24 18:34           ` Greg KH
2012-02-24 19:15             ` Henrik Rydberg
2012-02-24 19:26               ` Greg KH
2012-02-24 20:10                 ` Henrik Rydberg
2012-02-24 20:16                   ` Greg KH
2012-02-24 20:37                     ` Henrik Rydberg
2012-02-24 20:56                       ` Greg KH
2012-02-24 21:22                         ` Henrik Rydberg
2012-02-24 21:30                           ` Ted Ts'o
2012-02-24 22:14                             ` Henrik Rydberg
2012-02-24 22:20                               ` Greg KH
2012-02-24 22:49                                 ` Henrik Rydberg
2012-02-24 22:54                                   ` Greg KH
2012-02-24 23:14                                     ` Henrik Rydberg
2012-02-25 12:15                               ` Theodore Tso
2012-02-26  9:54                                 ` Henrik Rydberg
2012-02-26  4:56                               ` Bobby Powers
2012-02-26 10:47                                 ` Henrik Rydberg
2012-02-26 12:26                                   ` Richard Yao
2012-02-26 14:23                                     ` Bernd Petrovitsch
2012-02-26 15:29                                       ` Henrik Rydberg
     [not found]                                     ` <365b85cee33d4f1aadc31336663de21c@HUBCAS2.cs.stonybrook.edu>
2012-02-26 15:05                                       ` Richard Yao
2012-02-26 20:30                                         ` Ted Ts'o
     [not found]                                         ` <09a5cca9cffb4300843f682be529e8ca@HUBCAS2.cs.stonybrook.edu>
2012-02-26 21:25                                           ` Richard Yao
2012-02-26 21:35                                             ` Theodore Tso
     [not found]                                             ` <10de0ef9fb5d44c08669191e12343a97@HUBCAS2.cs.stonybrook.edu>
2012-02-26 22:03                                               ` Richard Yao
2012-02-27 11:17                                                 ` Bernd Petrovitsch
2012-02-26 23:08                                   ` david
2012-02-27  0:01                                     ` Henrik Rydberg
2012-02-27  0:53                                       ` david
2012-02-27  9:07                                         ` Henrik Rydberg
2012-03-01  9:54           ` Thomas Gleixner
2012-02-24 15:58   ` Valdis.Kletnieks

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