linux-kernel - Re: [linux-pm] [PATCH 1/8] PM: Add suspend block api.

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Message-ID: <20100506134015.GA23426@srcf.ucam.org>
Date:	Thu, 6 May 2010 14:40:15 +0100
From:	Matthew Garrett <mjg@...hat.com>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Brian Swetland <swetland@...gle.com>,
	Alan Stern <stern@...land.harvard.edu>,
	mark gross <mgross@...ux.intel.com>, markgross@...gnar.org,
	Len Brown <len.brown@...el.com>, linux-doc@...r.kernel.org,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Oleg Nesterov <oleg@...hat.com>, Tejun Heo <tj@...nel.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [linux-pm] [PATCH 1/8] PM: Add suspend block api.

On Wed, May 05, 2010 at 04:47:55PM -0700, Tony Lindgren wrote:

> How about instead the modem driver fails to suspend until it's done?

Because every attempted suspend requires freezing userspace, suspending 
devices until you hit one that refuses to suspend, resuming the devies 
that did suspend and then unfreezing userspace. That's not an attractive 
option.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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