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IPSec performance would then just depend on this particular implementation
Getting the measure of ksize()
Posted Feb 21, 2009 10:40 UTC (Sat) by mjcoder (guest, #54432)
Posted Feb 21, 2009 14:26 UTC (Sat) by corbet (editor, #1)
I don't know for sure, but my guess is that the networking folks don't like that approach because it requires copying the packet in the case where the needed room doesn't exist. Networking hackers hate copying packets. They would rather just allocated the extra space elsewhere if need be.
Posted Feb 28, 2009 7:00 UTC (Sat) by Russ.Dill@gmail.com (subscriber, #52805)
But then it occured to me that the code that needs to do the expansion may be holding locks and may be in interrupt context. Preparing to call krealloc may require releasing locks, etc, since it could take locks.
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