From: Thomas Gleixner <tglx@linutronix.de>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: LKML <linux-kernel@vger.kernel.org>,
John Stultz <john.stultz@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
"John W. Linville" <linville@tuxdriver.com>,
linux-wireless@vger.kernel.org
Subject: Re: [patch 12/13] net: mac80211: Remove silly timespec dance
Date: Thu, 12 Jun 2014 10:19:08 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.10.1406121017500.5170@nanos> (raw)
In-Reply-To: <1402555774.4224.1.camel@jlt4.sipsolutions.net>
On Thu, 12 Jun 2014, Johannes Berg wrote:
> On Wed, 2014-06-11 at 23:59 +0000, Thomas Gleixner wrote:
>
> > + msrmnt = ktime_to_ms(net_timedelta(skb_arv));
>
> This is probably more of a question about net_timedelta(), but is
> ktime_get_real() really appropriate for duration measurements? Isn't
> that non-monotonic?
Well, it's monotonic, but might be affected by settimeofday().
Thanks,
tglx
next prev parent reply other threads:[~2014-06-12 8:19 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20140611234024.103571777@linutronix.de>
2014-06-11 23:59 ` [patch 04/13] net: mac80211: Use ktime_get_ts() Thomas Gleixner
2014-06-12 6:53 ` Johannes Berg
2014-06-12 9:03 ` Luis R. Rodriguez
2014-06-12 9:51 ` [Cocci] " Julia.Lawall
2014-06-12 10:49 ` Thomas Gleixner
2014-06-11 23:59 ` [patch 11/13] wireless: mwifiex: Use the proper interfaces Thomas Gleixner
2014-06-12 3:22 ` Bing Zhao
2014-06-12 8:31 ` [patch V2] " Thomas Gleixner
2014-06-12 8:38 ` Johannes Berg
2014-06-13 18:28 ` Bing Zhao
2014-06-11 23:59 ` [patch 12/13] net: mac80211: Remove silly timespec dance Thomas Gleixner
2014-06-12 6:49 ` Johannes Berg
2014-06-12 8:19 ` Thomas Gleixner [this message]
2014-06-12 8:35 ` net_timedelta() affected by settimeofday() (was: [patch 12/13] net: mac80211: Remove silly timespec dance) Johannes Berg
2014-06-12 8:39 ` Johannes Berg
2014-06-12 8:57 ` Thomas Gleixner
2014-06-12 9:21 ` Johannes Berg
2014-06-12 14:09 ` Thomas Gleixner
2014-06-13 17:58 ` Johannes Berg
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