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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	David Gibson <david@gibson.dropbear.id.au>,
	Liav Rehana <liavr@mellanox.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Richard Cochran <richardcochran@gmail.com>,
	Parit Bhargava <prarit@redhat.com>,
	Laurent Vivier <lvivier@redhat.com>,
	"Christopher S. Hall" <christopher.s.hall@intel.com>
Subject: [patch 0/6] timekeeping: Cure the signed/unsigned wreckage
Date: Thu, 08 Dec 2016 20:49:31 -0000	[thread overview]
Message-ID: <20161208202623.883855034@linutronix.de> (raw)

This series addresses the recently reintroduced signed vs. unsigned
wreckage by cleaning up the whole call chain instead of just making a
simple s64 -> u64 'fix' at one point and keeping the rest signed, which
eventually led to the unintended signed conversion and brought back an
issue that was fixed a year ago already.

Here is the queue:

  timekeeping: Force unsigned clocksource to nanoseconds conversions
  timekeeping: Make the conversion call chain consistently unsigned
  timekeeping: Get rid of pointless typecasts

These three patches are definitely urgent material

  timekeeping: Use mul_u64_u32_shr() instead of open coding it

Can wait for 4.11, but for sanity reasons it should go into 4.10

  [RFD] timekeeping: Provide optional 128bit math

This is material for discussion. I'm not sure if we want to do that at
all, but it addresses the insanities of long time scheduled out VMs.

  [RFD] timekeeping: Get rid of cycle_t

This one cannot be merged right away as there are further cycles_t users in
next. I merily added it for reference and it can be done around rc1 time by
running a coccinelle script.

Thanks,

	tglx

             reply	other threads:[~2016-12-08 20:52 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-08 20:49 Thomas Gleixner [this message]
2016-12-08 20:49 ` [patch 1/6] timekeeping: Force unsigned clocksource to nanoseconds conversion Thomas Gleixner
2016-12-08 23:38   ` David Gibson
2016-12-09 11:13   ` [tip:timers/core] timekeeping_Force_unsigned_clocksource_to_nanoseconds_conversion tip-bot for Thomas Gleixner
2016-12-08 20:49 ` [patch 2/6] timekeeping: Make the conversion call chain consistently unsigned Thomas Gleixner
2016-12-08 23:39   ` David Gibson
2016-12-09 11:13   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2016-12-08 20:49 ` [patch 3/6] timekeeping: Get rid of pointless typecasts Thomas Gleixner
2016-12-08 23:40   ` David Gibson
2016-12-09 11:14   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2016-12-08 20:49 ` [patch 4/6] timekeeping: Use mul_u64_u32_shr() instead of open coding it Thomas Gleixner
2016-12-08 23:41   ` David Gibson
2016-12-09 11:14   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2016-12-08 20:49 ` [patch 5/6] [RFD] timekeeping: Provide optional 128bit math Thomas Gleixner
2016-12-09  4:08   ` Ingo Molnar
2016-12-09  4:29     ` Ingo Molnar
2016-12-09  4:39       ` John Stultz
2016-12-09  4:48     ` Peter Zijlstra
2016-12-09  5:22       ` Ingo Molnar
2016-12-09  5:41         ` Peter Zijlstra
2016-12-09  5:11   ` Peter Zijlstra
2016-12-09  6:08     ` Peter Zijlstra
2016-12-09  5:26   ` Peter Zijlstra
2016-12-09  6:38     ` Peter Zijlstra
2016-12-09  8:30       ` Peter Zijlstra
2016-12-09  9:11         ` Peter Zijlstra
2016-12-09 10:01         ` Peter Zijlstra
2016-12-09 17:32         ` Chris Metcalf
2017-01-14 12:51         ` [tip:timers/core] math64, timers: Fix 32bit mul_u64_u32_shr() and friends tip-bot for Peter Zijlstra
2016-12-09 10:18       ` [patch 5/6] [RFD] timekeeping: Provide optional 128bit math Peter Zijlstra
2016-12-09 17:20         ` Chris Metcalf
2016-12-08 20:49 ` [patch 6/6] [RFD] timekeeping: Get rid of cycle_t Thomas Gleixner
2016-12-08 23:43   ` David Gibson
2016-12-09  4:52 ` [patch 0/6] timekeeping: Cure the signed/unsigned wreckage John Stultz
2016-12-09  5:30 ` Peter Zijlstra

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