linux-kernel - Re: [PATCH] RFC: nomadik: expand timesource to 63 bits

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 for Android: free password hash cracker in your pocket

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

Date:	Thu, 11 Nov 2010 20:00:26 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Nicolas Pitre <nico@...xnic.net>
cc:	Linus Walleij <linus.walleij@...ricsson.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Colin Cross <ccross@...gle.com>,
	Rabin VINCENT <rabin.vincent@...ricsson.com>
Subject: Re: [PATCH] RFC: nomadik: expand timesource to 63 bits

On Thu, 11 Nov 2010, Nicolas Pitre wrote:
> On Thu, 11 Nov 2010, Thomas Gleixner wrote:
> > Well, you don't need the keepwarm() timer, if you just call
> > sched_clock() in the idle wakeup path, so the magic in the NOHZ code
> > will ensure that you reread the thing timely.
> 
> You still have to make sure you get out of idle before 16 secs has 
> passed.

No, I meant to put it into the idle loop, right after mach_idle() or
whatever is called to put the CPU into deep power sleep. The
clockevents core code makes sure that you get interrupted in time.

Thanks,

	tglx
--
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/