Re: [BUGFIX] dm-crypt: Fix a bug of async cryption completefunction

[Herbert Xu]

On Fri, Feb 27, 2009 at 01:28:46PM +0100, Milan Broz wrote:
>
> Like this?
> 
> struct ablkcipher_request *req = (char *)dmreq - cc->dmreq_start;
> mempool_free(req, cc->req_pool);

Exactly.  You could also embed the ablkcipher_request at the
end of dmreq, as in

struct dm_crypt_request {
	struct scatterlist sg_in;
	struct scatterlist sg_out;
	struct ablkcipher_request req;
};

Then you can use container_of.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/