linux-kernel - Re: [RFC][PATCH 00/26] sched/numa

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Date:	Thu, 22 Mar 2012 10:45:39 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Nish Aravamudan <nish.aravamudan@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, Paul Turner <pjt@...gle.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Mike Galbraith <efault@....de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Dan Smith <danms@...ibm.com>,
	Bharata B Rao <bharata.rao@...il.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [RFC][PATCH 00/26] sched/numa


> I was going to try and test this on power, but it fails to build:
> 
>   mm/filemap_xip.c: In function ‘__xip_unmap’:
>   mm/filemap_xip.c:199: error: implicit declaration of function
> ‘numa_add_vma_counter’

Add: 

#include <linux/mempolicy.h>

to that file and it should build.

> >  [26/26] sched, numa: A few debug bits
> 
> introduced a new warning:
> 
>   kernel/sched/numa.c: In function ‘process_cpu_runtime’:
>   kernel/sched/numa.c:210: warning: format ‘%lu’ expects type ‘long
> unsigned int’, but argument 3 has type ‘u64’
>   kernel/sched/numa.c:210: warning: format ‘%lu’ expects type ‘long
> unsigned int’, but argument 4 has type ‘u64’

Yeah, that's a known trainwreck, some archs define u64 as unsigned long
others as unsigned long long, so whatever you write: %ul or %ull is
wrong and I can't be arsed to add an explict cast since its all debug
bits that won't ever make it in anyway.
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