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

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Message-ID: <a8e1da0801210044t5f705f77n8e310878775f7b5b@mail.gmail.com>
Date:	Mon, 21 Jan 2008 16:44:36 +0800
From:	"Dave Young" <hidave.darkstar@...il.com>
To:	"Jarek Poplawski" <jarkao2@...il.com>
Cc:	"Kay Sievers" <kay.sievers@...y.org>,
	"Alan Stern" <stern@...land.harvard.edu>,
	"Greg KH" <gregkh@...e.de>, stefanr@...6.in-berlin.de,
	"David Brownell" <david-b@...bell.net>,
	"Kernel development list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 7/7] driver-core : convert semaphore to mutex in struct class

On Jan 21, 2008 4:36 PM, Jarek Poplawski <jarkao2@...il.com> wrote:
> On Mon, Jan 21, 2008 at 09:43:35AM +0800, Dave Young wrote:
> ...
> > Convert the class semaphore to mutex.
> > class_interface_register/unregister use class_device_* functions, so SINGLE_DEPTH_NESTING added for lockdep please in these functions.
>
> Looks fine to me now, but... I think you forgot again to make it
> clear that there were no lockdep warnings observed after this patch.
> And it seems there should be used something more complex than usb
> mouse or modem to verify this. Then IMHO it would be very nice if
> Andrew dares to merge this to -mm...

I applied it in my kernel, built and run without warnings, but it need
more testing.
I will be very glad to see the test result about this if you could, thanks.

>
> Regards,
> Jarek P.
>
> PS: I miss a lot function names in this patch...
>
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