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Message-ID: <44321298.4000409@bigpond.net.au>
Date: Tue, 04 Apr 2006 16:30:48 +1000
From: Peter Williams <pwil3058@bigpond.net.au>
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To: Peter Williams <pwil3058@bigpond.net.au>
CC: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Chris Han <xiphux@gmail.com>, Con Kolivas <kernel@kolivas.org>,
       William Lee Irwin III <wli@holomorphy.com>,
       Jake Moilanen <moilanen@austin.ibm.com>,
       Paolo Ornati <ornati@fastwebnet.it>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [ANNOUNCE][RFC] PlugSched-6.3.2 for  2.6.17-rc1
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Peter Williams wrote:
> This version updates staircase scheduler to version 15 (thanks Con)
> and includes the latest smpnice patches
> 
> A patch for 2.6.17-rc1 is available at:
> 
> <http://prdownloads.sourceforge.net/cpuse/plugsched-6.3.2-for-2.6.17-rc1.patch?download> 
> 
> 
> Very Brief Documentation:
> 
> You can select a default scheduler at kernel build time.  If you wish to
> boot with a scheduler other than the default it can be selected at boot
> time by adding:
> 
> cpusched=<scheduler>
> 
> to the boot command line where <scheduler> is one of: ingosched,
> ingo_ll, nicksched, staircase, spa_no_frills, spa_ws, spa_svr, spa_ebs
> or zaphod.  If you don't change the default when you build the kernel
> the default scheduler will be ingosched (which is the normal scheduler).
> 
> The scheduler in force on a running system can be determined by the
> contents of:
> 
> /proc/scheduler
> 
> Control parameters for the scheduler can be read/set via files in:
> 
> /sys/cpusched/<scheduler>/
> 
> Peter

This fails to build when SCHEDSTATS is not configured in.  The attached 
patch fixes that problem.

Peter
-- 
Peter Williams                                   pwil3058@bigpond.net.au

"Learning, n. The kind of ignorance distinguishing the studious."
  -- Ambrose Bierce

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Index: Linux-2.6.17-rc1/include/linux/sched_pvt.h
===================================================================
--- Linux-2.6.17-rc1.orig/include/linux/sched_pvt.h	2006-04-04 12:20:47.000000000 +1000
+++ Linux-2.6.17-rc1/include/linux/sched_pvt.h	2006-04-04 16:27:33.000000000 +1000
@@ -209,6 +209,7 @@ static inline void sched_info_switch(tas
 		sched_info_arrive(next);
 }
 #else
+#define schedstat_inc(rq, field)	do { } while (0)
 #define sched_info_queued(t)		do { } while (0)
 #define sched_info_switch(t, next)	do { } while (0)
 #endif /* CONFIG_SCHEDSTATS */

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