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From: Andi Kleen <ak@linux.intel.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: [PATCH v5 00/27] MDSv5 19
Date: Thu, 14 Feb 2019 11:50:41 -0800	[thread overview]
Message-ID: <20190214195041.GX16922@tassilo.jf.intel.com> (raw)
In-Reply-To: <20190214185242.GB19664@kroah.com>

> Of course that's not ok.

Okay. That's easy to say.

No regression anywhere, not even for any ISA driver.

But then of course that turned the still relatively simple patchkit into
a gigantic boondoggle of all tree driver audits and constant maintenance
and education of all driver maintainers.

And all to handle lots of drivers which likely nobody uses anyways,
or if they use it the device is already so slow that the extra
overhead of a CPU flush is in the noise 
(e.g. cpu flush overhead << PIO access)

That's somehow ok.

Anyways it's water down the bridge at this point. We already
wasted the time doing all of this. 

But of course it's still to be figured out if any of this can be
actually practically backported or be maintained long term.

My suspicion is that practical backports will need some
form of white listing anyways.

-Andi

  reply	other threads:[~2019-02-14 19:50 UTC|newest]

Thread overview: 105+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-19  0:50 [MODERATED] [PATCH v5 00/27] MDSv5 19 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 01/27] MDSv5 26 Andi Kleen
2019-01-22  4:17   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:46   ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 02/27] MDSv5 14 Andi Kleen
2019-01-22  4:20   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:51   ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 03/27] MDSv5 16 Andi Kleen
2019-01-22  4:23   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:55   ` Thomas Gleixner
2019-01-27 21:58   ` Thomas Gleixner
2019-01-28  3:30     ` [MODERATED] " Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 04/27] MDSv5 15 Andi Kleen
2019-01-22  4:33   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:59   ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 05/27] MDSv5 21 Andi Kleen
2019-01-22  4:35   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 13:01   ` Thomas Gleixner
2019-02-21 12:06   ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 06/27] MDSv5 18 Andi Kleen
2019-01-21 22:41   ` [MODERATED] " Josh Poimboeuf
2019-01-22  1:16     ` Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 07/27] MDSv5 0 Andi Kleen
2019-01-22  4:39   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-27 22:09   ` Thomas Gleixner
2019-01-28  3:33     ` [MODERATED] " Andi Kleen
2019-01-28  8:29       ` Thomas Gleixner
2019-02-13 22:26   ` [MODERATED] " Tyler Hicks
2019-01-19  0:50 ` [MODERATED] [PATCH v5 08/27] MDSv5 13 Andi Kleen
2019-01-22  4:40   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19  0:50 ` [MODERATED] [PATCH v5 09/27] MDSv5 23 Andi Kleen
2019-01-22  4:56   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22  7:26   ` Greg KH
2019-01-22 13:07   ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 10/27] MDSv5 7 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 11/27] MDSv5 2 Andi Kleen
2019-01-22 13:11   ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 12/27] MDSv5 6 Andi Kleen
2019-01-22 14:01   ` Thomas Gleixner
2019-01-22 15:42     ` Thomas Gleixner
2019-01-22 18:01     ` [MODERATED] " Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 13/27] MDSv5 17 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 14/27] MDSv5 3 Andi Kleen
2019-01-22  4:48   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 15:58   ` Thomas Gleixner
2019-01-22 17:57     ` Thomas Gleixner
2019-01-23  1:35       ` [MODERATED] " Andi Kleen
2019-01-23  9:27         ` Thomas Gleixner
2019-01-23 16:02           ` [MODERATED] " Andi Kleen
2019-01-23 22:40             ` Josh Poimboeuf
2019-01-23 22:57               ` Josh Poimboeuf
2019-01-24  0:25                 ` Josh Poimboeuf
2019-01-24  2:26               ` Andi Kleen
2019-01-24 12:04             ` Thomas Gleixner
2019-01-28  3:42               ` [MODERATED] " Andi Kleen
2019-01-28  8:33                 ` Thomas Gleixner
2019-02-16  2:00       ` [MODERATED] " Andi Kleen
2019-02-16 10:32         ` Thomas Gleixner
2019-02-16 16:58           ` [MODERATED] " Andi Kleen
2019-02-16 17:12             ` Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 15/27] MDSv5 1 Andi Kleen
2019-01-22  4:48   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19  0:50 ` [MODERATED] [PATCH v5 16/27] MDSv5 10 Andi Kleen
2019-01-22  4:54   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22  7:33   ` Greg KH
2019-01-19  0:50 ` [MODERATED] [PATCH v5 17/27] MDSv5 9 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 18/27] MDSv5 8 Andi Kleen
2019-01-22  5:07   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19  0:50 ` [MODERATED] [PATCH v5 19/27] MDSv5 12 Andi Kleen
2019-01-22  5:09   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19  0:50 ` [MODERATED] [PATCH v5 20/27] MDSv5 27 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 21/27] MDSv5 20 Andi Kleen
2019-01-22  5:11   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19  0:50 ` [MODERATED] [PATCH v5 22/27] MDSv5 24 Andi Kleen
2019-01-21 21:24   ` [MODERATED] " Linus Torvalds
2019-01-22  1:22     ` Andi Kleen
2019-01-22 16:09       ` Thomas Gleixner
2019-01-22 17:56         ` [MODERATED] " Andi Kleen
2019-01-22 18:56           ` Thomas Gleixner
2019-01-23  1:39             ` [MODERATED] " Andi Kleen
2019-01-23  6:39               ` Greg KH
2019-01-24  9:55               ` Thomas Gleixner
2019-01-19  0:50 ` [MODERATED] [PATCH v5 23/27] MDSv5 22 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 24/27] MDSv5 5 Andi Kleen
2019-01-21 21:20   ` [MODERATED] " Linus Torvalds
2019-01-19  0:50 ` [MODERATED] [PATCH v5 25/27] MDSv5 4 Andi Kleen
2019-01-22  5:15   ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19  0:50 ` [MODERATED] [PATCH v5 26/27] MDSv5 11 Andi Kleen
2019-01-19  0:50 ` [MODERATED] [PATCH v5 27/27] MDSv5 25 Andi Kleen
2019-01-21 21:18 ` [MODERATED] Re: [PATCH v5 00/27] MDSv5 19 Linus Torvalds
2019-01-22  1:14   ` Andi Kleen
2019-01-22  7:38     ` Greg KH
2019-01-28 11:34 ` Thomas Gleixner
2019-02-13 22:33   ` [MODERATED] " Tyler Hicks
2019-02-14 13:09     ` Jiri Kosina
2019-02-14 13:51       ` Greg KH
2019-02-14 16:53       ` Andi Kleen
2019-02-14 18:00         ` Greg KH
2019-02-14 18:05           ` Andrew Cooper
2019-02-14 18:33           ` Andi Kleen
2019-02-14 18:52             ` Greg KH
2019-02-14 19:50               ` Andi Kleen [this message]
2019-02-15  7:06                 ` Greg KH
2019-02-15 13:06                   ` Andi Kleen
2019-02-19 12:12                     ` Greg KH

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