Re: [announce 7/7] fbsplash - documentation
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2005-03-11 12:30:17
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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. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click