linux-kernel - Re: 'struct task_struct' has no member named 'mems

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Message-Id: <20070112032820.9c995718.pj@sgi.com>
Date:	Fri, 12 Jan 2007 03:28:20 -0800
From:	Paul Jackson <pj@....com>
To:	sander@...ilis.net
Cc:	akpm@...l.org, linux-kernel@...r.kernel.org, clameter@....com
Subject: Re: 'struct task_struct' has no member named 'mems_allowed'  (was:
 Re: 2.6.20-rc4-mm1)

Sander wrote:
> > +mbind-restrict-nodes-to-the-currently-allowed-cpuset.patch
> 
> I had to revert this patch because of:
> 
> ===
> mm/mempolicy.c: In function 'sys_mbind':
> mm/mempolicy.c:885: error: 'struct task_struct' has no member named 'mems_allowed'

You're right - this patch won't build if CONFIG_NUMA is on, and
CONFIG_CPUSETS off.

The line added in the patch:

  +	nodes_and(nodes, nodes, current->mems_allowed);

needs to be macro'ized, using another cpuset.h routine, to a no-op, in
the case that CONFIG_CPUSET is disabled.

I'll leave the honors to Christoph (added to CC), since this is his patch.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.925.600.0401
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