From: Eric Dumazet <dada1@cosmosbay.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
virtualization@lists.osdl.org, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
john stultz <johnstul@us.ibm.com>,
Zachary Amsden <zach@vmware.com>,
James Morris <jmorris@namei.org>, Dan Hecht <dhecht@vmware.com>,
Paul Mackerras <paulus@samba.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Prarit Bhargava <prarit@redhat.com>,
Chris Lalancette <clalance@redhat.com>,
Rick Lindsley <ricklind@us.ibm.com>
Subject: Re: [patch 1/2] Ignore stolen time in the softlockup watchdog
Date: Tue, 27 Mar 2007 09:00:49 +0200 [thread overview]
Message-ID: <4608C121.4050309@cosmosbay.com> (raw)
In-Reply-To: <20070327054106.664262413@goop.org>
Jeremy Fitzhardinge a écrit :
> +static DEFINE_PER_CPU(unsigned long long, touch_timestamp);
...
> void touch_softlockup_watchdog(void)
> {
> - __raw_get_cpu_var(touch_timestamp) = jiffies;
> + __raw_get_cpu_var(touch_timestamp) = sched_clock();
> }
Not very clear if this is safe on 32bit, since this is not anymore atomic.
Maybe a comment would help ?
next prev parent reply other threads:[~2007-03-27 7:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-27 5:38 [patch 0/2] softlockup watchdog improvements Jeremy Fitzhardinge
2007-03-27 5:38 ` Jeremy Fitzhardinge
2007-03-27 5:38 ` [patch 1/2] Ignore stolen time in the softlockup watchdog Jeremy Fitzhardinge
2007-03-27 7:00 ` Eric Dumazet [this message]
2007-03-27 7:12 ` Jeremy Fitzhardinge
2007-03-27 7:12 ` Jeremy Fitzhardinge
2007-03-27 7:50 ` Eric Dumazet
2007-03-27 7:50 ` Eric Dumazet
2007-03-27 14:39 ` Prarit Bhargava
2007-03-27 14:39 ` Prarit Bhargava
2007-03-27 16:37 ` Jeremy Fitzhardinge
2007-03-27 16:53 ` Prarit Bhargava
2007-03-27 16:53 ` Prarit Bhargava
2007-03-27 17:10 ` Jeremy Fitzhardinge
2007-03-27 17:10 ` Jeremy Fitzhardinge
2007-03-27 17:20 ` Prarit Bhargava
2007-03-27 17:20 ` Prarit Bhargava
2007-03-27 5:38 ` [patch 2/2] percpu enable flag for " Jeremy Fitzhardinge
2007-03-27 5:38 ` Jeremy Fitzhardinge
2007-03-27 14:42 ` Prarit Bhargava
2007-03-27 14:42 ` Prarit Bhargava
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