linux-kernel - Re: [PATCH 1/1] lockdep: Kill held_lock->check and "int check" arg of __lock

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Date:	Sun, 12 Jan 2014 19:28:11 -0500
From:	Dave Jones <davej@...hat.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 1/1] lockdep: Kill held_lock->check and "int check" arg
 of __lock_acquire()

On Sun, Jan 12, 2014 at 06:45:54PM +0100, Oleg Nesterov wrote:
 
 > diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
 > index 92b1bfc..13bd13d 100644
 > --- a/include/linux/lockdep.h
 > +++ b/include/linux/lockdep.h
 > @@ -252,7 +252,6 @@ struct held_lock {
 >  	unsigned int trylock:1;						/* 16 bits */
 >  
 >  	unsigned int read:2;        /* see lock_acquire() comment */
 > -	unsigned int check:2;       /* see lock_acquire() comment */
 >  	unsigned int hardirqs_off:1;
 >  	unsigned int references:11;					/* 32 bits */

The 'bits' comments seem to be crap, even before your patch.

	Dave

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