Re: [announce 7/7] fbsplash - documentation

From: Benjamin Herrenschmidt
Date: Fri Mar 11 2005 - 07:35:10 EST

> I don't understand. Does the kernel code need to wait for the helper
> to finish while holding the semaphore? AFAICS, the helper is completely
> asynchronous, so it can simply do its job when the kernel has given
> up the semaphore.

It should be totally async witout any sem. there is no guarantee that
userspace is even available at the time you do the call.

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