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From: Thomas Gleixner <tglx@linutronix.de>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: "Li, Aubrey" <aubrey.li@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	"Brown, Len" <len.brown@intel.com>,
	"alan@linux.intel.com" <alan@linux.intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux PM list <linux-pm@vger.kernel.org>
Subject: Re: [PATCH v3]PM/Sleep: Timer quiesce in freeze state
Date: Mon, 26 Jan 2015 15:24:27 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.11.1501261523370.5526@nanos> (raw)
In-Reply-To: <2137807.aqSxQQCuJ3@vostro.rjw.lan>

On Mon, 26 Jan 2015, Rafael J. Wysocki wrote:
> On Monday, January 26, 2015 10:40:24 AM Thomas Gleixner wrote:
> > The only remaining issue might be a NMI calling into
> > ktime_get_mono_fast_ns() before timekeeping is resumed. Its probably a
> > non issue on x86/tsc, but it might be a problem on other platforms
> > which turn off devices, clocks, It's not rocket science to prevent
> > that.
> 
> I don't see any users of ktime_get_mono_fast_ns() at all, unless some non-trivial
> macros are involved.  At least grepping for it only returns the definition,
> declarations and the line in trace.c.

You can trace in NMI and perf is going to use ktime_get_mono_fast_ns()
eventually as well.

Thanks,

	tglx

  reply	other threads:[~2015-01-26 14:24 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-09  3:01 [PATCH v3]PM/Sleep: Timer quiesce in freeze state Li, Aubrey
2015-01-14  0:24 ` Li, Aubrey
2015-01-19 15:24   ` Rafael J. Wysocki
2015-01-22 10:15     ` Thomas Gleixner
2015-01-26  8:44       ` Li, Aubrey
2015-01-26  9:40         ` Thomas Gleixner
2015-01-26 14:21           ` Rafael J. Wysocki
2015-01-26 14:15             ` Thomas Gleixner
2015-01-26 14:45               ` Rafael J. Wysocki
2015-01-27  7:12                 ` Li, Aubrey
2015-01-26 14:41           ` Rafael J. Wysocki
2015-01-26 14:24             ` Thomas Gleixner [this message]
2015-01-26 14:50               ` Rafael J. Wysocki
2015-01-26 14:34                 ` Thomas Gleixner
2015-01-26 15:04                   ` Rafael J. Wysocki
2015-01-27  8:03             ` Li, Aubrey
2015-01-27 15:10               ` Rafael J. Wysocki
2015-01-28  0:17                 ` Li, Aubrey
2015-01-29 22:20           ` Rafael J. Wysocki
2015-02-06  1:20             ` [Update] " Rafael J. Wysocki
2015-02-06 16:14               ` Peter Zijlstra
2015-02-06 18:29                 ` Peter Zijlstra
2015-02-06 22:36                   ` Rafael J. Wysocki
2015-02-09  9:49                     ` Peter Zijlstra
2015-02-09 14:50                       ` Rafael J. Wysocki
2015-02-09  2:54               ` [Update 2x] " Rafael J. Wysocki
2015-02-09 15:20                 ` Peter Zijlstra
2015-02-09 15:44                 ` Peter Zijlstra
2015-02-09 23:57                   ` Rafael J. Wysocki

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