linux-kernel - Re: sched: WARNING: at include/linux/cpumask.h:108 select_fallback

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Message-ID: <CA+1xoqe6UL36=F2mg8cYJsyW9_kxjmdX-H=khdKmbhg+mEpbmw@mail.gmail.com>
Date:	Sat, 14 Apr 2012 13:40:22 +0200
From:	Sasha Levin <levinsasha928@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>, mingo@...nel.org,
	"Liu, Chuansheng" <chuansheng.liu@...el.com>, vapier@...too.org,
	rusty@...tcorp.com.au
Subject: Re: sched: WARNING: at include/linux/cpumask.h:108 select_fallback_rq+0x241/0x280()

On Sat, Apr 14, 2012 at 11:17 AM, Peter Zijlstra <peterz@...radead.org> wrote:
> On Sat, 2012-03-31 at 13:22 +0530, Srivatsa S. Bhat wrote:
>>
>> One of the perils of using macros instead of true function calls :-(
>>
> You can do type checking in macros too, its not pretty, but there's
> several such things already, see min()/max() for example.

Would it make sense to somehow standardize type checking in kernel
macros? Possibly a set of wrappers that would make type checking easy
to get into new and existing macros?
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