linux-kernel - Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

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Message-ID: <AANLkTilVu_EFAIN5owarAh-2pDomVZUvLsO_XLP4ISTu@mail.gmail.com>
Date:	Thu, 27 May 2010 01:05:08 -0700
From:	Arve Hjønnevåg <arve@...roid.com>
To:	Vitaly Wool <vitalywool@...il.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Florian Mickler <florian@...kler.org>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Paul@...p1.linux-foundation.org, felipe.balbi@...ia.com,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

2010/5/27 Vitaly Wool <vitalywool@...il.com>:
> 2010/5/27 Arve Hjønnevåg <arve@...roid.com>:
>> On Wed, May 26, 2010 at 6:16 AM, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:
>>>> Really, what are you getting at? Do you deny that there are programs,
>>>> that prevent a device from sleeping? (Just think of the bouncing
>>>> cows app)
>>>>
>>>> And if you have two kernels, one with which your device is dead after 1
>>>> hour and one with which your device is dead after 10 hours. Which would
>>>> you prefer? I mean really... this is ridiculous.
>>>
>>> The problem you have is that this is policy. If I have the device wired
>>> to a big screen and I want cows bouncing on it I'll be most upset if
>>> instead it suspends.
>>
>> We never suspend when the screen is on. If the screen is off, I would
>> not be upset if it suspends.
>
> That's /wrong/. What if you have an active download ongoing when the
> screen is off? This ugly simplistic approach is one of the worst
> things in Android.

On android we have code that blocks suspend while downloading. On
non-android systems I have used if the download has not finished by
the time the auto-sleep timeout kicks in, the system will suspend and
the download halts.

-- 
Arve Hjønnevåg
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