Messages in this thread | | | Date | Thu, 17 Apr 2008 11:22:05 -0400 (EDT) | From | Alan Stern <> | Subject | Semphore -> mutex in the device tree |
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Peter:
The obstacle to converting the semaphore in struct device to a mutex has been that its tree-oriented usage pattern isn't compatible with lockdep.
In order to get around this and at least begin the conversion process, how about adding a provision for making some classes of mutex invisible to lockdep? I know it doesn't solve the fundamental problem, but maybe it's a step in the right direction.
Alan Stern
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