Herbert Xu e7cd2514ea [CRYPTO] chainiv: Avoid lock spinning where possible ... This patch makes chainiv avoid spinning by postponing requests on lock contention if the user allows the use of asynchronous algorithms. If a synchronous algorithm is requested then we behave as before. This should improve IPsec performance on SMP when two CPUs attempt to transmit over the same SA. Currently one of them will spin doing nothing waiting for the other CPU to finish its encryption. This patch makes it postpone the request and get on with other work. If only one CPU is transmitting for a given SA, then we will process the request synchronously as before. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>		2008-01-11 08:16:55 +11:00
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aead.h
skcipher.h	[CRYPTO] chainiv: Avoid lock spinning where possible	2008-01-11 08:16:55 +11:00