linux-kernel - Re: [PATCH 0/7] convert semaphore to mutex in struct class

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Message-ID: <Pine.LNX.4.44L0.0801071224200.2748-100000@iolanthe.rowland.org>
Date:	Mon, 7 Jan 2008 12:25:38 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
cc:	Greg KH <gregkh@...e.de>, <James.Bottomley@...senpartnership.com>,
	<dbrownell@...rs.sourceforge.net>,
	Dave Young <hidave.darkstar@...il.com>,
	<linux-scsi@...r.kernel.org>, <a.zummo@...ertech.it>,
	<peterz@...radead.org>, <cbou@...l.ru>,
	<linux-kernel@...r.kernel.org>,
	David Brownell <david-b@...bell.net>, <krh@...hat.com>,
	<rtc-linux@...glegroups.com>,
	<spi-devel-general@...ts.sourceforge.net>,
	<linux1394-devel@...ts.sourceforge.net>, <dwmw2@...radead.org>,
	<davem@...emloft.net>, <jarkao2@...il.com>
Subject: Re: [PATCH 0/7] convert semaphore to mutex in struct class

On Mon, 7 Jan 2008, Stefan Richter wrote:

> Semi off-topic:  What about struct device.sem?  Is there any chance to
> rip this out of the driver core and let drivers serialize everything?  I
> suppose not...

There isn't.  The core uses that lock.

Alan Stern

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