linux-kernel - Re: [PATCHv2 3/5] cpuidle: add support for states that affect multiple cpus

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Message-ID: <CAMbhsRQDdXcKVp-_RNe-0i7YYLr4vKDDXqVw_eP4VsmfbFNtYg@mail.gmail.com>
Date:	Sat, 17 Mar 2012 12:21:34 -0700
From:	Colin Cross <ccross@...roid.com>
To:	Santosh Shilimkar <santosh.shilimkar@...com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-pm@...ts.linux-foundation.org, Kevin Hilman <khilman@...com>,
	Len Brown <len.brown@...el.com>,
	Trinabh Gupta <g.trinabh@...il.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Deepthi Dharwar <deepthi@...ux.vnet.ibm.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Kay Sievers <kay.sievers@...y.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Amit Kucheria <amit.kucheria@...aro.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Subject: Re: [PATCHv2 3/5] cpuidle: add support for states that affect
 multiple cpus

On Sat, Mar 17, 2012 at 5:29 AM, Santosh Shilimkar
<santosh.shilimkar@...com> wrote:

<snip>

> While playing around with this version, I noticed that the
> 'alive_count' is ever incrementing which will lead to
> coupled idle state not being attempted after one CPU offline
> attempt.
>
> Fix in end of the email for the same. With it, coupled states
> continue to work with CPU online/offline transitions.
>
> Feel free to fold it into original patch. Attached
> the same in case mailer eat tabs.

<snip>

Thanks, Kevin reported this issue and I'll fix it in the next version.
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