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From: Paul Jackson <pj@sgi.com>
To: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu,
	peterz@infradead.org, andi@firstfloor.org
Subject: Re: [PATCH 1/2] Customize sched domain via cpuset
Date: Thu, 3 Apr 2008 07:56:01 -0500	[thread overview]
Message-ID: <20080403075601.d86bc0bd.pj@sgi.com> (raw)
In-Reply-To: <47F44D25.6030001@jp.fujitsu.com>

H.Seto wrote:
> So, if there is no one can find use of two flags, I'll change it to one.
> Comments from any others?

I too don't have a strong preference either way ... just a bias toward
keeping the exposed per-cpuset flags as simple and generic as practical.

Exposing internal details that don't need to be exposed has two downsides:
 1) it makes using the flags slightly more difficult, as the user has to
    figure out more details, and
 2) it exposes some internal details that we didn't need to expose, thereby
    possibly making future changes more difficult.  We can change internal
    hidden detail anytime we want, but exposed interfaces are locked in
    with a high barrier to incompatible change.

I too would welcome comments from others.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@sgi.com> 1.940.382.4214

  parent reply	other threads:[~2008-04-03 12:56 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-01 11:26 [PATCH 1/2] Customize sched domain via cpuset Hidetoshi Seto
2008-04-01 11:40 ` Andi Kleen
2008-04-01 11:56   ` Peter Zijlstra
2008-04-01 13:29     ` Andi Kleen
2008-04-01 13:38       ` Peter Zijlstra
2008-04-01 11:48 ` Peter Zijlstra
2008-04-01 11:55 ` Paul Jackson
2008-04-01 11:59   ` Peter Zijlstra
2008-04-02  8:39   ` Hidetoshi Seto
2008-04-02 11:14     ` Paul Jackson
2008-04-03  3:21       ` Hidetoshi Seto
2008-04-03 10:46         ` Peter Zijlstra
2008-04-03 12:56         ` Paul Jackson [this message]
2008-04-03 13:14         ` Paul Jackson
2008-04-04  9:10 ` [PATCH 1/2] Customize sched domain via cpuset (v2) Hidetoshi Seto
2008-04-04  9:11 ` [PATCH 2/2] " Hidetoshi Seto
2008-04-10 14:53   ` Peter Zijlstra
2008-04-14  1:45     ` Hidetoshi Seto
2008-04-14 15:38       ` Paul Jackson

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