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

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Message-ID: <a8e1da0801070200l6a8630f2td27f2f0b993cd4da@mail.gmail.com>
Date:	Mon, 7 Jan 2008 18:00:36 +0800
From:	"Dave Young" <hidave.darkstar@...il.com>
To:	"Greg KH" <gregkh@...e.de>
Cc:	"Stefan Richter" <stefanr@...6.in-berlin.de>,
	stern@...land.harvard.edu, peterz@...radead.org,
	david-b@...bell.net, davem@...emloft.net, jarkao2@...il.com,
	krh@...hat.com, dbrownell@...rs.sourceforge.net,
	James.Bottomley@...senpartnership.com, a.zummo@...ertech.it,
	cbou@...l.ru, dwmw2@...radead.org,
	linux1394-devel@...ts.sourceforge.net,
	spi-devel-general@...ts.sourceforge.net,
	linux-scsi@...r.kernel.org, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] convert semaphore to mutex in struct class

On Jan 7, 2008 4:45 PM, Greg KH <gregkh@...e.de> wrote:
> On Mon, Jan 07, 2008 at 10:09:44AM +0800, Dave Young wrote:
> >
> > Thanks for your comment, I rewrite it for 2.6.24-rc7 as a all-in-one
> > patch, please see following. Drop i2c maintainer and list in cc
> > because there's no changes about i2c in this patch:
> >
> > Convert semaphore to mutex in struct class
>
> Most of the non-driver core code should be converted to not use the
> lock in the class at all.  They should use a local lock instead.
>
> So how about a patch series that removes the usage of the current
> semaphore from the different drivers, and then, a single patch that
> converts the semaphore to mutex in the class code, it should not touch
> anything outside of the drivers/base/ directory (not including the
> driver.h file.)
>
> Sound reasonable?

looks like a better aproach, let me take a look ...

>
> thanks,
>
> greg k-h
>
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