From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9DB1C3A59E for ; Thu, 22 Aug 2019 00:55:00 +0000 (UTC) Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A5E3E21848 for ; Thu, 22 Aug 2019 00:54:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sourceforge.net header.i=@sourceforge.net header.b="WOjXS8cf"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sf.net header.i=@sf.net header.b="K9eQosMU"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="LgsqbT+h" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A5E3E21848 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=samsung.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-f2fs-devel-bounces@lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1i0bNT-0002iD-0X; Thu, 22 Aug 2019 00:54:59 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1i0bNR-0002i5-Rx for linux-f2fs-devel@lists.sourceforge.net; Thu, 22 Aug 2019 00:54:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=References:Content-Type:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=zkZXU4UgR2xVWaur+CPkoWa/h3dr00YRZlhWS9MWMAc=; b=WOjXS8cf5qPYBsCVoT9ntEizKi o2HPRgqrLgIg34IaUfvoMYSo8T2AFwZUsbKl+QPm97FBjJrUEdxbqILfLbUEGjUYbkVT8/aqFhynV CD6Dz1WfkEAh5zFq5MnH4XgOu4LtsFk0jJZxkiTNSTQhACKXKz6hpQu7jqKRekDZaAD0=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=References:Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID :Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=zkZXU4UgR2xVWaur+CPkoWa/h3dr00YRZlhWS9MWMAc=; b=K 9eQosMUbk5jTe3N+/CoSf8W3sFEdVbQl+37CMr1VOrm3dIpF/zFgbYGuGmsiXkyxYlUVUPTVw39x+ M9e9j+OQR88HIeXU43wSaPEIsvWG1uGOawckP+K5VYaLqp2UAWEmVH9X26zQ7aOQkyufN5sCS1sGO xQOYkUqkuLglq/3k=; Received: from mailout4.samsung.com ([203.254.224.34]) by sfi-mx-1.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) id 1i0bNM-00F8qI-Vu for linux-f2fs-devel@lists.sourceforge.net; Thu, 22 Aug 2019 00:54:57 +0000 Received: from epcas2p3.samsung.com (unknown [182.195.41.55]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20190822005444epoutp04e038fa2d2d5cd9dc24d9f4d2b94d38ff~9GJdyIftm0362503625epoutp04j for ; Thu, 22 Aug 2019 00:54:44 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20190822005444epoutp04e038fa2d2d5cd9dc24d9f4d2b94d38ff~9GJdyIftm0362503625epoutp04j DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1566435284; bh=zkZXU4UgR2xVWaur+CPkoWa/h3dr00YRZlhWS9MWMAc=; h=From:To:Cc:Subject:Date:References:From; b=LgsqbT+hYIIBvCF5mcNpSLjX71VwNOW3ECNKiy2AW9M3uUPWM77Adx70KiCIl9S6g 8BCo8Y4qWPQ92CXApOiUFoMXdJsXwcahI1N312DIPZXn1iuJDjZsyN95Wn0XJ9GJwM pcZJtA6x5sXzKBtI4w7edPjs3L/3X5MzcmqT9uaY= Received: from epsnrtp5.localdomain (unknown [182.195.42.166]) by epcas2p1.samsung.com (KnoxPortal) with ESMTP id 20190822005443epcas2p12f0b23d4dfaf0bb9b991b29ddfea4ff8~9GJdH1To80306303063epcas2p1A; Thu, 22 Aug 2019 00:54:43 +0000 (GMT) Received: from epsmges2p1.samsung.com (unknown [182.195.40.186]) by epsnrtp5.localdomain (Postfix) with ESMTP id 46DQzP0PDKzMqYkc; Thu, 22 Aug 2019 00:54:41 +0000 (GMT) Received: from epcas2p4.samsung.com ( [182.195.41.56]) by epsmges2p1.samsung.com (Symantec Messaging Gateway) with SMTP id 20.1F.04156.FC7ED5D5; Thu, 22 Aug 2019 09:54:39 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas2p3.samsung.com (KnoxPortal) with ESMTPA id 20190822005438epcas2p337aba06b328cdcdd1549395f0bbcfdbc~9GJY5qmwx3233232332epcas2p3f; Thu, 22 Aug 2019 00:54:38 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20190822005438epsmtrp223bcbfc1f01624cd3dc41a63517cface~9GJY4itJ50123901239epsmtrp2Q; Thu, 22 Aug 2019 00:54:38 +0000 (GMT) X-AuditID: b6c32a45-df7ff7000000103c-ab-5d5de7cf581d Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 69.D2.03706.EC7ED5D5; Thu, 22 Aug 2019 09:54:38 +0900 (KST) Received: from KORDO035251 (unknown [12.36.165.204]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20190822005438epsmtip27b8ec42598e05dbe2605a805a7b78b25~9GJYp2w_l0938509385epsmtip2B; Thu, 22 Aug 2019 00:54:38 +0000 (GMT) From: "boojin.kim" To: , , Date: Thu, 22 Aug 2019 09:54:38 +0900 Message-ID: <017901d55884$2cbc8f60$8635ae20$@samsung.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Content-Language: ko Thread-Index: AdVYhCtkBjnnAwgAQWGl61cO3+ZKhw== X-Brightmail-Tracker: H4sIAAAAAAAAA01Tf0wTdxTf9+56V5TOszL9rllcvQ0TNdS2W9kXIsuS6bxE/sCZjcRZ8QKX QmyvTa9F3JIpTiogEd3iIi06f7KVTrtRqIiUOUA7N1nNWHEyx2KAbZappJ0E2BxrOcz47/M+ 733e5728PDmu9FAqeZng4O0CZ2bIBUSwZxXKivxuNGp9NTR69Fc1gfzfXsOR75d6En13tA9D jZH9BAo98MjQ+c5/cHQw9hwa8btx9NO0S4bqh8dwFIl8QaGW4QEZCg2uQb8OTWGo4cQdEv1w eiOKnZggUGfoOoH6OxpJ1DtTD9CxSBeGXF8+AqiqbopC4fOFrz3LtnpvY+z+wC42eCWT7e9z si3NNSR7Z6CTZANn97CXTyYwdt+Nqzj7sCtKsodamwGbaFlekL7VvK6U50p4u5oXiq0lZYIp j9m0pej1IkO2Vpely0GvMGqBs/B5zPr8gqw3yszJ3Rl1OWd2JqkCThSZta+us1udDl5dahUd eQxvKzHbdDqbRuQsolMwaYqtllydVqs3JCt3mEsHPmigbKNkxf3pSXIvuCSrBWlySL8M6891 4LVggVxJtwPYuS9OSkEcwMdBPyUFEwCOzNzFn0guBD1ziRCAp9p6ZVJwD8Daq0dmG5P0GhgI N4MUzqDfhp/cmiFSRTgdouChtsrZxBJaD6tqD2IpTNCZ8MdgYtZCQedAX6xKJuHF8HrDCJHC OP08vHi/cW4MNWzvGwMSnwE9NS5cMtPA/s+HQMoM0pVy6ImOAkmwHp76rAmT8BIYC7dSElbB xIMQKeE9MNp0hpLEdQDemHbNFb0E3b8dSDaSJ91WQX/H2hSE9Auwd3Butqdhdc9jSqIVsNql lIQvwuPxfkyiVXC87n2JZuHPg23gMFjhnreke96S7nmLuf+3PQmIZrCUt4kWEy/qbbr5124B s4+xekM7OPZ9fjeg5YBJVxzOMhqVMq5c3G3pBlCOMxmKisatRqWihNv9Lm+3FtmdZl7sBobk DY7gqmeKrck3ExxFOoM+O1ubY0CGbD1ilikCC29vU9ImzsHv5Hkbb3+iw+Rpqr3AEz/rzf3j 4/GxycJtkYEP0y487Ap/0+QNe24lKkSDb/zmgZ18+cjCtMylny7fBePvLK56j5q4sjL3zS1O IXN0yiv4e/5Fmrei3uHqXj93eVNg0VddlT4m8Hd+eqyQuftUlNbcO527aMi+wnTGcnTDyo1f T577c3Ng+7Kyyc03M659xBBiKadbjdtF7j9ZtnA9LgQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDIsWRmVeSWpSXmKPExsWy7bCSvO6557GxBj+36Ft8/dLBYrH+1DFm i9V3+9ksTk89y2Qx53wLi8Xed7NZLdbu+cNs0f1KxuLJ+lnMFjd+tbFa9D9+zWxx/vwGdotN j6+xWuy9pW1x/95PJouZ8+6wWVxa5G7xat43Fos9e0+yWFzeNYfN4sj/fkaLGef3MVm0bfzK aNHa85Pd4vjacAdJjy0rbzJ5tGwu99h2QNXj8tlSj02rOtk87lzbw+axeUm9x+4Fn5k8ms4c ZfZ4v+8qm0ffllWMHp83yQXwRHHZpKTmZJalFunbJXBlXGueyV7wlK3i7a8fbA2MO1m7GDk5 JARMJNZtm83excjFISSwm1HicesPqISUxNb2PcwQtrDE/ZYjrBBFzxklWi89YgdJsAloS2w+ vooRxBYRiJD4vKmZDaSIWeAyu8Svvg9sIAlhASOJ1q5uJhCbRUBV4sq2z2BTeQUsJVa/amWF sAUlTs58wtLFyAHUrCfRthFsJrOAvMT2t3OgjlCQ2HH2NVRcRGJ2ZxszxF49ictr7jFOYBSc hWTSLIRJs5BMmoWkewEjyypGydSC4tz03GLDAsO81HK94sTc4tK8dL3k/NxNjOA0oKW5g/Hy kvhDjAIcjEo8vBN0Y2OFWBPLiitzDzFKcDArifBWzImKFeJNSaysSi3Kjy8qzUktPsQozcGi JM77NO9YpJBAemJJanZqakFqEUyWiYNTqoHR/3xjomm+UuNza36XT/syBRcuDdj2pvvHHj7v Co5+z/JqscvTsoNWmN98Ul6ye8f1Q09rHkpuep167iuXgXjuERnen0//OhpvrD5pwGOoorWs Qv6H8ONV3yZvv3Rx9qGtTFMtWAWc9u6duYqxsO17cllw0/bX93kWxe++rFG1xkdnd3HZOi0X JZbijERDLeai4kQAbRpSev8CAAA= X-CMS-MailID: 20190822005438epcas2p337aba06b328cdcdd1549395f0bbcfdbc X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20190822005438epcas2p337aba06b328cdcdd1549395f0bbcfdbc References: X-Headers-End: 1i0bNM-00F8qI-Vu Subject: Re: [f2fs-dev] [PATCH 5/9] block: support diskcipher X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 'Ulf Hansson' , 'Mike Snitzer' , dm-devel@redhat.com, 'Andreas Dilger' , 'Alasdair Kergon' , 'Eric Biggers' , linux-samsung-soc@vger.kernel.org, 'Herbert Xu' , 'Krzysztof Kozlowski' , 'Jaehoon Chung' , 'Kukjin Kim' , linux-ext4@vger.kernel.org, linux-fscrypt@vger.kernel.org, 'Jaegeuk Kim' , linux-arm-kernel@lists.infradead.org, 'Jens Axboe' , 'Theodore Ts'o' , linux-mmc@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org, "'David S. Miller'" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 8/21/19 21:09 AM, Jens Axboe wrote: > This isn't going to happen. With this, and the inline encryption > proposed by Google, we'll bloat the bio even more. At least the Google > approach didn't include bio iter changes as well. > Please work it out between yourselves so we can have a single, clean > abstraction that works for both. I'm looking at inline encryption by Google. I will find compatibility with inline encryption to avoid conflicts in BIO/F2FS. And changing bio iter has a benefit for diskcipher. Without changing bio iter, diskcipher should control(alloc/free) a buffer to hold a 'bi_dun' variable for every bio. But changing bio iter is difficult to accept for block layer, I will modify the diskcipher. And, as you mentioned, inline encryption by Google has this control. So I might be able to use it. Thanks. Boojin Kim. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel