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Date: Fri, 2 May 2008 17:34:06 +0200 (CEST) From: Thomas Gleixner <tglx@...utronix.de> To: Heiko Carstens <heiko.carstens@...ibm.com> cc: Andrew Morton <akpm@...ux-foundation.org>, John Stultz <johnstul@...ibm.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] clocksource: Fix permissions for available_clocksource On Fri, 2 May 2008, Heiko Carstens wrote: > On Fri, May 02, 2008 at 04:36:37PM +0200, Thomas Gleixner wrote: > > On Fri, 2 May 2008, Heiko Carstens wrote: > > > From: Heiko Carstens <heiko.carstens@...ibm.com> > > > > > > File permissions for > > > /sys/devices/system/clocksource/clocksource0/available_clocksource > > > are 600 which allows write access. But this is in fact a read only > > > file. So change permissions to 400. > > > > Indeed. The question is whether we should make this 444. There is no > > harm, when users can read the info. Same applies for the > > current_clocksource entry, making it 644 should be fine. > > Sure, I can send an on-top patch for this. Yes, please. > Btw. did you recently try writing "jiffies" to current_clocksource? > That seems to be a trick to stop the clock... Hmm, that's after the kernel switched to highres and/or nohz, right ? This came up earlier, but it got dropped from my to todo list. :( Will have a look. 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/
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