From: Paul Jackson <pj@sgi.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sched hardcode non-smp set_cpus_allowed
Date: Fri, 28 Oct 2005 21:25:36 -0700 [thread overview]
Message-ID: <20051028212536.24258523.pj@sgi.com> (raw)
In-Reply-To: <1130549617.7615.50.camel@localhost.localdomain>
Rusty wrote:
> Hmm, I do slightly prefer the former, since it is exactly the same as
> the SMP case,
I tend to agree with that, in theory.
But the cpu_online_map reference had broken some (driver, module, ...?)
that had wasted a bit of Andrew's time, which was worth something to me
as well. I was more than happy to make a one-line change if it removed
a small pothole on Andrew's road.
We've got a couple of schools of thought here ... at least.
I tend to prefer having the source code express the general case, and
then using header file magic to optimize the generated code for the uni-
processor systems. I guess this would be Rusty-style source code,
Andrew-style machine code, and esoteric style headers.
> With our include web, however, that might be tricky.
Yeah. Not worth messing with, in my book.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
prev parent reply other threads:[~2005-10-29 4:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-27 8:53 [PATCH] sched hardcode non-smp set_cpus_allowed Paul Jackson
2005-10-29 1:33 ` Rusty Russell
2005-10-29 4:25 ` Paul Jackson [this message]
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