From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1425024AbeE1MkI (ORCPT ); Mon, 28 May 2018 08:40:08 -0400 Received: from smtprelay6.synopsys.com ([198.182.37.59]:50704 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423499AbeE1Mj6 (ORCPT ); Mon, 28 May 2018 08:39:58 -0400 Subject: Re: [PATCH 1/7] block: Add block level changes for inline encryption From: Ladvine D Almeida To: Jens Axboe , Hannes Reinecke , "Omar Sandoval" , Johannes Thumshirn , "Sagi Grimberg" , Shaohua Li , Greg Kroah-Hartman , Ming Lei , Bart Van Assche , Keith Busch CC: , , "Manjunath M Bettegowda ; Prabu Thangamuthu ; Tejas Joglekar" References: <8cd6a622-693a-f130-708d-eae517f26c78@synopsys.com> Message-ID: <3889f625-d347-8c2a-306b-801c8caec145@synopsys.com> Date: Mon, 28 May 2018 13:39:48 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <8cd6a622-693a-f130-708d-eae517f26c78@synopsys.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.144.133.104] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The subject line is incorrect for the patch. Please discard it, I will resend with corrected subject line. On Monday 28 May 2018 01:30 PM, Ladvine D Almeida wrote: > > This patch introduces new variable under bio structure to > facilitate inline encryption. This variable is used to > associate I/O requests to crypto information. > > Signed-off-by: Ladvine D Almeida > --- > block/Kconfig | 13 +++++++++++++ > block/bio.c | 6 ++++++ > include/linux/blk_types.h | 3 +++ > 3 files changed, 22 insertions(+) > > diff --git a/block/Kconfig b/block/Kconfig > index 28ec557..a48ecec 100644 > --- a/block/Kconfig > +++ b/block/Kconfig > @@ -128,6 +128,19 @@ config BLK_DEV_THROTTLING_LOW > > Note, this is an experimental interface and could be changed someday. > > +config BLK_DEV_INLINE_ENCRYPTION > + bool "Enable support for block device inline encryption" > + default n > + help > + Enable block devices for Inline Encryption support. > + > + This option is required to support the inline encryption capability > + of the block device driver, including UFS Host Controller driver. > + When the Inline Encryption feature is enabled in the block device > + drivers, this option will be automatically enabled. > + > + If unsure, say N. > + > config BLK_CMDLINE_PARSER > bool "Block device command line partition parser" > default n > diff --git a/block/bio.c b/block/bio.c > index 0a4df92..91aecf5 100644 > --- a/block/bio.c > +++ b/block/bio.c > @@ -606,6 +606,9 @@ void __bio_clone_fast(struct bio *bio, struct bio *bio_src) > bio->bi_write_hint = bio_src->bi_write_hint; > bio->bi_iter = bio_src->bi_iter; > bio->bi_io_vec = bio_src->bi_io_vec; > +#ifdef CONFIG_BLK_DEV_INLINE_ENCRYPTION > + bio->bi_ie_private = bio_src->bi_ie_private; > +#endif > > bio_clone_blkcg_association(bio, bio_src); > } > @@ -690,6 +693,9 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, > bio->bi_write_hint = bio_src->bi_write_hint; > bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector; > bio->bi_iter.bi_size = bio_src->bi_iter.bi_size; > +#ifdef CONFIG_BLK_DEV_INLINE_ENCRYPTION > + bio->bi_ie_private = bio_src->bi_ie_private; > +#endif > > switch (bio_op(bio)) { > case REQ_OP_DISCARD: > diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h > index 4cb970c..11df096 100644 > --- a/include/linux/blk_types.h > +++ b/include/linux/blk_types.h > @@ -183,6 +183,9 @@ struct bio { > void *bi_cg_private; > struct bio_issue bi_issue; > #endif > +#ifdef CONFIG_BLK_DEV_INLINE_ENCRYPTION > + void *bi_ie_private; > +#endif > #endif > union { > #if defined(CONFIG_BLK_DEV_INTEGRITY) > Best Regards, Ladvine