Messages in this thread | | | Date | Wed, 18 Nov 2015 13:06:45 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH v2 1/5] crypto: Multi-buffer encryptioin infrastructure support |
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On Tue, Nov 17, 2015 at 04:30:14PM -0800, Tim Chen wrote: > On Wed, 2015-11-18 at 08:07 +0800, Herbert Xu wrote: > > On Tue, Nov 17, 2015 at 02:59:29PM -0800, Tim Chen wrote: > > > > > > Herbert, would you prefer me to use ablkcipher scatter walk instead, > > > assuming the overhead of both walk are about the same? > > > > Well since you are going to potentially sleep in the middle of > > an operation I'd think ablkcipher is required, no? > > We're using blkcipher walk in the implementation. > As long as we use kmap and instead of kmap_atomic, > it allows us to sleep in the middle of the walk.
What if you were called from an atomic context, such as IPsec?
Cheers, -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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