linux-kernel - Re: [RFC PATCH 4/6] Preempt-RCU: Implementation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 2 Mar 2008 04:09:03 +0100 (CET)
From:	Roman Zippel <zippel@...ux-m68k.org>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, ego@...ibm.com,
	linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org,
	Ingo Molnar <mingo@...e.hu>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Ted Tso <tytso@...ibm.com>, dvhltc@...ibm.com,
	Oleg Nesterov <oleg@...sign.ru>,
	Andrew Morton <akpm@...ux-foundation.org>, bunk@...nel.org,
	Josh Triplett <josh@...edesktop.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [RFC PATCH 4/6] Preempt-RCU: Implementation

Hi,

On Sat, 1 Mar 2008, Steven Rostedt wrote:

> >  config CLASSIC_RCU
> > -	bool "Classic RCU"
> > +	def_bool !PREEMPT_RCU
> >  	help
> >  	  This option selects the classic RCU implementation that is
> >  	  designed for best read-side performance on non-realtime
> > -	  systems.
> 
> Actually Paul, you don't need to make this an "option". Simply the default
> if PREEMPT_RCU is not selected. In otherwords, no prompt.
> 
> 	config CLASSIC_RCU
> 	  bool
> 	  depends on !PREEMPT_RCU
> 	  default y

There is no prompt. :)
"def_bool !PREEMPT_RCU" does the same as this.

bye, Roman
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/