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From: Mike Galbraith <efault@gmx.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
	linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	Dimitri Sivanich <sivanich@sgi.com>,
	Kay Sievers <kay.sievers@vrfy.org>, Greg KH <greg@kroah.com>
Subject: Re: linux-next: build failure after merge of the akpm tree
Date: Fri, 06 Jan 2012 08:22:40 +0100	[thread overview]
Message-ID: <1325834560.6233.62.camel@marge.simson.net> (raw)
In-Reply-To: <20120105155233.0d367bc3.akpm@linux-foundation.org>

On Thu, 2012-01-05 at 15:52 -0800, Andrew Morton wrote:
> On Thu, 5 Jan 2012 18:29:49 +1100
> Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> 
> > Hi Andrew,
> > 
> > After merging the akpm tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
> > 
> > kernel/time/tick-sched.c:874:7: warning: 'struct sysdev_attribute' declared inside parameter list [enabled by default]
> >
> > ...
> >
> > Caused by commit 629d589817da ("tick-sched: add specific do_timer_cpu
> > value for nohz off mode") interacting with the removal of sysdevs in the
> > driver-core tree.  This patch will need reworking for that.
> > 
> > I have reverted that commit for today.
> 
> Bah.  I dropped it.

Hm.  I was looking at that patch, and wondering if it wouldn't be better
to twiddle cpusets to allow the user to tell the scheduler and friends
that certain CPUs are being used for HPC instead.  We do isolation there
now, letting the user nuke scheduler domains, so it looks like the right
spot to extend isolation.

I'm trying that out, because I found that the rt push/pull logic adds
useless overhead and jitter to isolated/pinned rt loads.  We can let
exclusive cpusets turn nohz on/off, and/or rt push/pull.. and a set
could be immunized from becoming jiffies maintainer, or any other
unsavory and not 100% required duty, with a per cpu flag read as well.

	-Mike

  parent reply	other threads:[~2012-01-06  7:22 UTC|newest]

Thread overview: 259+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-05  7:29 linux-next: build failure after merge of the akpm tree Stephen Rothwell
2012-01-05 23:52 ` Andrew Morton
2012-01-06  5:05   ` Greg KH
2012-01-06  7:22   ` Mike Galbraith [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-03-07 10:55 Stephen Rothwell
2022-03-07 16:43 ` Johannes Weiner
2022-03-07 21:27   ` Stephen Rothwell
2021-12-20 11:08 Stephen Rothwell
2021-12-20 12:44 ` Muchun Song
2021-12-01  5:06 Stephen Rothwell
2021-06-17  9:32 Stephen Rothwell
2021-06-17 12:15 ` Muneendra Kumar M
2021-06-16 13:07 Stephen Rothwell
2021-06-18  8:24 ` Stephen Rothwell
2020-12-21  5:16 Stephen Rothwell
2020-12-10  9:33 Stephen Rothwell
2020-12-03  8:52 Stephen Rothwell
2020-12-03 12:48 ` Andrey Konovalov
2020-11-13  7:02 Stephen Rothwell
2020-11-14  1:14 ` Andrew Morton
2020-11-15  9:01   ` Mike Rapoport
2020-11-16  6:17     ` Stephen Rothwell
2020-11-11  6:20 Stephen Rothwell
2020-09-28 11:25 Stephen Rothwell
2020-09-28 11:29 ` Christoph Hellwig
2020-09-08 10:45 Stephen Rothwell
2020-06-04  6:44 Stephen Rothwell
2020-06-04  8:24 ` Stephen Rothwell
2020-06-02  9:57 Stephen Rothwell
2020-06-02 19:12 ` Andrew Morton
2020-05-28 10:19 Stephen Rothwell
2020-05-28 13:15 ` Christoph Hellwig
2020-05-25 12:17 Stephen Rothwell
2020-05-25 18:18 ` John Hubbard
2020-05-25 22:17   ` Stephen Rothwell
2020-04-22  6:39 Stephen Rothwell
2020-04-22 18:33 ` Haren Myneni
2020-03-02  4:23 Stephen Rothwell
2020-02-27  4:11 Stephen Rothwell
2020-02-27  5:20 ` Arjun Roy
2020-02-27  9:02 ` Geert Uytterhoeven
2020-02-27 17:13   ` Arjun Roy
2020-02-27 17:44     ` Arjun Roy
2020-02-27 17:57       ` Geert Uytterhoeven
2020-02-27 18:50         ` Arjun Roy
2020-02-27 21:28           ` Stephen Rothwell
2020-02-28  0:34             ` Arjun Roy
2020-02-28  0:59               ` Stephen Rothwell
2020-02-27 21:27         ` Stephen Rothwell
2020-02-17  3:57 Stephen Rothwell
2020-02-17  4:12 ` Arjun Roy
2020-02-17  6:45   ` Arjun Roy
2020-02-20 23:18     ` Stephen Rothwell
2020-02-20 23:22       ` Arjun Roy
2020-02-20 23:43         ` Stephen Rothwell
2020-02-20 23:44           ` Arjun Roy
2020-02-20 23:59             ` Stephen Rothwell
2020-02-21 21:29               ` Arjun Roy
2020-02-26  4:02 ` Stephen Rothwell
2020-02-26  4:25   ` Arjun Roy
2020-01-22  7:05 Stephen Rothwell
2019-02-26  7:39 Stephen Rothwell
2019-02-26  8:16 ` Mike Rapoport
2018-12-03  7:00 Stephen Rothwell
2018-12-03 10:37 ` Anshuman Khandual
2018-12-12 17:05 ` Anshuman Khandual
2018-12-12 20:44   ` Stephen Rothwell
2018-11-30  5:30 Stephen Rothwell
2018-11-30 10:27 ` Anshuman Khandual
2018-10-08  8:03 Stephen Rothwell
2018-10-15  7:14 ` Stephen Rothwell
2018-10-16  7:46   ` Ingo Molnar
2018-10-05  6:14 Stephen Rothwell
2018-10-05 12:02 ` Michael Ellerman
2018-10-05 12:46   ` Stephen Rothwell
2018-10-06 12:10     ` Michael Ellerman
2018-10-02  8:53 Stephen Rothwell
2018-03-21  8:17 Stephen Rothwell
2018-03-21 10:02 ` Greg Kroah-Hartman
2018-03-21 10:38   ` Stephen Rothwell
2017-11-06  6:55 Stephen Rothwell
2017-08-01  6:25 Stephen Rothwell
2017-08-01 18:40 ` Kees Cook
2017-08-01 20:44   ` Arnd Bergmann
2017-06-30  6:32 Stephen Rothwell
2017-07-03  8:14 ` Stephen Rothwell
2017-07-03  8:57 ` David Miller
2017-06-26  6:53 Stephen Rothwell
2017-06-26  7:13 ` Michal Hocko
2017-06-26 21:48   ` Stephen Rothwell
2017-04-20  6:18 Stephen Rothwell
2017-04-18  8:09 Stephen Rothwell
2017-04-10  7:51 Stephen Rothwell
2017-03-20  5:37 Stephen Rothwell
2017-03-20 13:07 ` Michal Hocko
2017-03-20 13:22   ` Jaegeuk Kim
2017-03-07  3:07 Stephen Rothwell
2017-03-07  3:55 ` Laura Abbott
2017-03-07  2:38 Stephen Rothwell
2017-01-09  4:09 Stephen Rothwell
2015-12-31 12:22 Stephen Rothwell
2016-01-14  4:15 ` Stephen Rothwell
2016-01-15 21:05   ` Andrew Morton
2016-01-15 23:00     ` Stephen Rothwell
2016-01-15 23:14       ` Andrew Morton
2016-01-16  8:51         ` Takashi Iwai
2016-01-20 14:09           ` Takashi Iwai
2016-01-20 20:38             ` Stephen Rothwell
2016-01-22  0:24               ` Stephen Rothwell
2016-01-22  2:40                 ` Stephen Rothwell
2016-01-25  9:29                   ` Takashi Iwai
2016-01-25  9:40                     ` Michael Ellerman
2016-01-25 10:19                       ` Takashi Iwai
2016-01-25 10:41                     ` Vinod Koul
2016-01-25 10:42                       ` Takashi Iwai
2016-01-25 10:45                     ` Sudip Mukherjee
2016-01-25 11:03                       ` Takashi Iwai
2016-01-25 11:18                         ` Sudip Mukherjee
2016-01-25 11:41                     ` Mark Brown
2016-01-25 13:10                       ` Takashi Iwai
2016-01-25 13:45                         ` Takashi Iwai
2016-01-25 13:55                           ` Mark Brown
2016-01-26 12:47                             ` Vinod Koul
2016-01-25 14:02                           ` Sudip Mukherjee
2016-01-26 12:26                           ` Vinod Koul
2016-01-26 20:51                           ` Stephen Rothwell
2016-01-26 21:22                             ` Takashi Iwai
2016-01-22  3:03                 ` Stephen Rothwell
2015-11-01 16:29 Stephen Rothwell
2015-10-06  7:03 Stephen Rothwell
2015-09-08  4:53 Stephen Rothwell
2015-07-14  5:19 Stephen Rothwell
2015-06-25  8:00 Stephen Rothwell
2015-06-20 14:31 Stephen Rothwell
2014-11-06  8:36 Stephen Rothwell
2014-11-06 11:24 ` Thierry Reding
2014-11-06 11:30   ` Thierry Reding
2014-11-09 23:55   ` Stephen Rothwell
2014-08-26  7:18 Stephen Rothwell
2014-08-26 13:54 ` Don Zickus
2014-08-26 21:37   ` Stephen Rothwell
2014-07-16  8:26 Stephen Rothwell
2014-07-16  8:54 ` Michal Hocko
2014-03-06  8:22 Stephen Rothwell
2014-03-06 21:48 ` Andrew Morton
2014-03-07  0:57   ` Stephen Rothwell
2014-03-07  1:38     ` Andrew Morton
2014-03-07 17:05       ` Christoph Lameter
2014-03-07 21:08         ` Andrew Morton
2014-03-07 17:02 ` Christoph Lameter
2014-03-06  7:54 Stephen Rothwell
2013-09-25  1:06 Stephen Rothwell
2013-09-25  1:21 ` Timur Tabi
2013-09-25 20:26 ` Andrew Morton
2013-09-25 21:32   ` Hugh Dickins
2013-09-25 21:43     ` Andrew Morton
2013-10-02  8:53       ` Frederic Weisbecker
2013-07-16  5:18 Stephen Rothwell
2013-06-07  6:28 Stephen Rothwell
2013-06-07  7:26 ` Peng Tao
2013-06-07  7:52   ` Stephen Rothwell
2013-06-07  8:11     ` Peng Tao
2013-06-04  6:55 Stephen Rothwell
2013-05-27  6:39 Stephen Rothwell
2013-04-04  6:44 Stephen Rothwell
2013-03-27  4:43 Stephen Rothwell
2013-03-01  4:31 Stephen Rothwell
2013-02-28  1:15 Stephen Rothwell
2013-02-20  6:28 Stephen Rothwell
2013-02-11  7:13 Stephen Rothwell
2013-02-11 12:04 ` Amir Vadai
2013-02-06  6:59 Stephen Rothwell
2013-02-04  7:17 Stephen Rothwell
2012-12-18  2:29 Stephen Rothwell
2012-12-18 10:10 ` Mel Gorman
2012-12-10  8:58 Stephen Rothwell
2012-12-10  8:54 Stephen Rothwell
2012-12-10 10:43 ` Ingo Molnar
2012-11-09  3:39 Stephen Rothwell
2012-10-23  3:42 Stephen Rothwell
2012-10-23  4:21 ` Joe Perches
2012-10-23 19:44 ` Andrew Morton
2012-10-23 19:51   ` Joe Perches
2012-10-23 20:02     ` Andrew Morton
2012-10-24 19:19       ` Joe Perches
2012-10-24 19:38         ` Andrew Morton
2012-10-23  3:35 Stephen Rothwell
2012-09-28  6:30 Stephen Rothwell
2012-09-28 15:19 ` Mikulas Patocka
2012-10-01 19:56   ` Andrew Morton
2012-09-27  7:43 Stephen Rothwell
2012-09-26  6:01 Stephen Rothwell
2012-09-26 20:15 ` Kees Cook
2012-09-26 20:33   ` Andrew Morton
2012-09-26 20:42     ` Kees Cook
2012-09-26 20:47       ` Andrew Morton
2012-09-27  7:26     ` Stephen Rothwell
2012-09-24 14:02 Stephen Rothwell
     [not found] ` <20120925000217.947b8cd8dca6979bfedee2ca-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>
2012-09-24 19:36   ` Roland Dreier
2012-09-24 19:46     ` Andrew Morton
2012-09-25  8:27     ` Jack Morgenstein
2012-09-21  6:26 Stephen Rothwell
2012-09-21  9:02 ` Denys Vlasenko
2012-09-21  6:08 Stephen Rothwell
2012-09-13  7:44 Stephen Rothwell
2012-09-13  7:49 ` Sachin Kamat
2012-09-13  8:31   ` Stephen Rothwell
2012-09-13  7:56 ` Andrew Morton
2012-09-13  8:31   ` Stephen Rothwell
2012-09-13 23:07     ` Stephen Rothwell
2012-09-13  8:46 ` Zhang Rui
2012-09-13 12:30   ` Stephen Rothwell
2012-08-06  3:43 Stephen Rothwell
2012-08-06  5:01 ` Michel Lespinasse
2012-08-06  5:04   ` Michel Lespinasse
2012-08-06  9:46     ` Steven Whitehouse
2012-07-31  4:40 Stephen Rothwell
2012-07-31  5:45 ` Michel Lespinasse
2012-07-31  6:31   ` Stephen Rothwell
2012-07-31 10:34 ` Michel Lespinasse
2012-06-25  6:41 Stephen Rothwell
2012-06-25 16:40 ` Kees Cook
2012-06-25 22:59   ` Stephen Rothwell
2012-04-27  5:38 Stephen Rothwell
2012-02-28  5:58 Stephen Rothwell
2012-02-28 12:00 ` Mark Brown
2012-02-28 22:08   ` Andrew Morton
2012-02-29 10:13     ` Mark Brown
2012-02-27  6:21 Stephen Rothwell
2012-02-27  6:31 ` H. Peter Anvin
2012-02-22  5:08 Stephen Rothwell
2012-02-17  5:21 Stephen Rothwell
2012-01-05  7:29 Stephen Rothwell
2012-01-05 23:19 ` Greg KH
2012-01-05 23:45   ` Andrew Morton
2012-01-06  5:04     ` Greg KH
2011-12-16  5:39 Stephen Rothwell
2011-12-16 22:00 ` Andrew Morton
2011-12-17 17:49   ` Alexey Dobriyan
2011-12-18 22:43   ` Stephen Rothwell
2011-12-09  5:08 Stephen Rothwell
2011-12-09  5:47 ` Andrew Morton
2011-12-12  4:26   ` Stephen Rothwell
2011-12-12  4:41     ` Stephen Rothwell
2011-11-01  8:57 Stephen Rothwell
2011-10-05  8:07 Stephen Rothwell
2011-09-30  5:32 Stephen Rothwell
2011-09-30  6:02 ` Andrew Morton
2011-10-04  7:44   ` Stephen Rothwell
2011-09-28  9:22 Stephen Rothwell
2011-09-28 15:51 ` Joe Perches
2011-09-28 22:03 ` Andrew Morton
2011-09-16  6:21 Stephen Rothwell
2011-07-01  5:19 Stephen Rothwell
2011-07-01  5:32 ` Cong Wang
2011-07-01  7:08   ` Stephen Rothwell
2011-07-01 10:10     ` Cong Wang
2011-07-01 10:37       ` Stephen Rothwell
2011-07-04  1:30         ` Cong Wang

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