From: Herbert Xu Subject: Re: [BUGFIX] dm-crypt: Fix a bug of async cryption complete function Date: Fri, 27 Feb 2009 20:46:02 +0800 Message-ID: <20090227124602.GA24630@gondor.apana.org.au> References: <1235724971.6204.106.camel@yhuang-dev.sh.intel.com> <20090227114103.GB24024@gondor.apana.org.au> <49A7D3E5.5040706@redhat.com> <20090227115638.GA24221@gondor.apana.org.au> <49A7DC7E.1040307@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Huang Ying , linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org To: Milan Broz Return-path: Received: from rhun.apana.org.au ([64.62.148.172]:33983 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752708AbZB0MqK (ORCPT ); Fri, 27 Feb 2009 07:46:10 -0500 Content-Disposition: inline In-Reply-To: <49A7DC7E.1040307@redhat.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: 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~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt