linux-kernel - [RFC INCOMPLETE] tick based timekeeping from a housekeeping CPU

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Message-Id: <1435157880-22925-1-git-send-email-riel@redhat.com>
Date:	Wed, 24 Jun 2015 10:57:49 -0400
From:	riel@...hat.com
To:	linux-kernel@...r.kernel.org
Cc:	fweisbec@...hat.com, peterz@...radead.org, mingo@...nel.org,
	tglx@...utronix.de, luto@...capital.net
Subject: [RFC INCOMPLETE] tick based timekeeping from a housekeeping CPU

This series seems to make basic tick based time sampling from a
housekeeping CPU work, allowing us to have tick based accounting
on a nohz_full CPU, and no longer doing vtime accounting on those
CPUs.

It still needs a major  cleanup, and steal time accounting and irq
accounting are still missing.

Just posting this to get a sense of whether I am headed in the right
direction, or whether we need some major overhaul/cleanup of part of
the code first.

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