On Wed, 20 Aug 2008 15:23:01 +1000 Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> wrote: > BTW. It would be good to try to turn the GFP_ATOMIC into GFP_KERNEL, That would be nice indeed > maybe using a semaphore instead of a lock to protect insertion vs. > initialisation. a semaphore? are you meaning a mutex? If not, I fail to understand what you're implying. > The old scheme was fine because if the atomic allocation > failed, it could fallback to the linear search and try again on the next > interrupt. Not anymore. Right, that's the problem with this new scheme and I'm still trying to find a way to handle memory allocation failures be it for GFP_ATOMIC or GFP_KERNEL. I could not think of anything simple so far and I'm open for suggestions. Thanks, Sebastien. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
