linux-kernel - Re: [PATCH] x86/spinlocks: Fix regression in spinlock contention detection

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Date:	Tue, 5 May 2015 12:58:12 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Cc:	Tahsin Erdogan <tahsin@...gle.com>, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org,
	Waiman.Long@...com, borntraeger@...ibm.com, oleg@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/spinlocks: Fix regression in spinlock contention
 detection

On Tue, May 05, 2015 at 04:08:22PM +0530, Raghavendra K T wrote:
> ================
> #include <stdio.h>
> 
> #define LOCK_INC 2

Note that to be completely identical to the kernel code you should've
written:

#define LOCK_INC	((unsigned int)2)

as per:

#define TICKET_LOCK_INC ((__ticket_t)__TICKET_LOCK_INC)


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