linux-kernel - Re: [PATCH 2/8] PM: suspend_block: Add driver to access suspend blockers from user-space

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Message-ID: <Pine.LNX.4.44L0.1005021755320.30701-100000@netrider.rowland.org>
Date:	Sun, 2 May 2010 17:56:21 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Arve Hjønnevåg <arve@...roid.com>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Tejun Heo <tj@...nel.org>, Oleg Nesterov <oleg@...hat.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>,
	Jim Collar <jim.collar@...are.net>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Avi Kivity <avi@...hat.com>, Len Brown <len.brown@...el.com>,
	Pavel Machek <pavel@....cz>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	Nigel Cunningham <nigel@...onice.net>,
	<linux-doc@...r.kernel.org>
Subject: Re: [PATCH 2/8] PM: suspend_block: Add driver to access suspend
 blockers from user-space

On Sun, 2 May 2010, Rafael J. Wysocki wrote:

> Hmm.  It doesn't seem to be possible to create two different suspend blockers
> using the same file handle.  So, what exactly is a process supposed to do to
> use two suspend blockers at the same time?

Open the file twice, thereby obtaining two file handles.

Alan Stern

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