linux-kernel - Re: [PATCH V2 1/2] Tick: Introduce tick_nohz

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] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.02.1311151200560.30673@ionos.tec.linutronix.de>
Date:	Fri, 15 Nov 2013 12:06:24 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Lan Tianyu <tianyu.lan@...el.com>
cc:	dipankar@...ibm.com, paulmck@...ux.vnet.ibm.com,
	fweisbec@...il.com, rjw@...ysocki.net, viresh.kumar@...aro.org,
	rostedt@...dmis.org, cpufreq@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 1/2] Tick: Introduce tick_nohz_check() to check nohz
 enable status

On Fri, 15 Nov 2013, Lan Tianyu wrote:

> In some cases, nohz enable status needs to be checked. E.G, in RCU and cpufreq
> ondemand governor. So add tick_nohz_check() to return tick_nohz_enabled value
> And use tick_nohz_check() instead of referencing tick_nohz_enabled in the rcutree_plugin.h.

What's the point of this? 

Checking for tick_nohz_enabled is wrong to begin with.

See https://lkml.org/lkml/2013/11/13/424
--
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/