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SubjectRe: [PATCH 7/7] driver-core : convert semaphore to mutex in struct class
On Wed, Jan 16, 2008 at 10:27:54AM -0500, Alan Stern wrote:
> On Wed, 16 Jan 2008, Dave Young wrote:
>
> > The lockdep warining was posted in the below thread, actually, I have
> > built and run this patced kernel for several days, there's no more
> > warnings.
> > http://lkml.org/lkml/2008/1/3/2
>
> Your meaning isn't clear. Do you mean that your patch doesn't generate
> any lockdep warnings at all? Or do you mean that it generates a single
> lockdep warning at boot time and then no more warnings afterward?

So it wasn't only my sleeping problem! This:

"One lockdep warning detected as following, thus use mutex_lock_nested
with SINGLE_DEPTH_NESTING in class_device_add"

seems to say that mutex_lock_nested is used in the patch just to remove
this one possible warning...

Regards,
Jarek P.


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