From patchwork Mon Feb 18 10:04:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chandan Rajendra X-Patchwork-Id: 10817639 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5E7BE922 for ; Mon, 18 Feb 2019 10:09:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4948129A18 for ; Mon, 18 Feb 2019 10:09:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3C60829A26; Mon, 18 Feb 2019 10:09:11 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4CED29A18 for ; Mon, 18 Feb 2019 10:09:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729569AbfBRKJK (ORCPT ); Mon, 18 Feb 2019 05:09:10 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:48750 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729434AbfBRKJK (ORCPT ); Mon, 18 Feb 2019 05:09:10 -0500 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1IA3uNB060492 for ; Mon, 18 Feb 2019 05:09:09 -0500 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 2qqsn8u6pr-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 18 Feb 2019 05:09:08 -0500 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 18 Feb 2019 10:04:02 -0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1IA41rd29097984 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 18 Feb 2019 10:04:01 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1EF39136051; Mon, 18 Feb 2019 10:04:01 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 95241136055; Mon, 18 Feb 2019 10:03:58 +0000 (GMT) Received: from localhost.in.ibm.com (unknown [9.124.35.115]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 18 Feb 2019 10:03:58 +0000 (GMT) From: Chandan Rajendra To: linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fscrypt@vger.kernel.org Cc: Chandan Rajendra , tytso@mit.edu, adilger.kernel@dilger.ca, ebiggers@kernel.org, jaegeuk@kernel.org, yuchao0@huawei.com Subject: [RFC PATCH 00/10] Consolidate Post read processing code Date: Mon, 18 Feb 2019 15:34:23 +0530 X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19021810-0016-0000-0000-000009858C40 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010619; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000280; SDB=6.01162773; UDB=6.00607074; IPR=6.00943349; MB=3.00025633; MTD=3.00000008; XFM=3.00000015; UTC=2019-02-18 10:04:06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19021810-0017-0000-0000-00004230B5F7 Message-Id: <20190218100433.20048-1-chandan@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-02-18_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902180077 Sender: linux-fscrypt-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patchset moves the "post read processing" code into a file of its own and gets the generic do_mpage_readpge() to make use of the functionality provided. With these changes in place, the patchset changes Ext4 to use mpage_readpage[s] instead of its own custom ext4_readpages() function. This is done to reduce duplicity of code across filesystems. Based on the reviews provided for this patchset, I will change F2FS to use mpage_readpage[s] and post the next version of this patchset to linux-fsdevel mailing list. The patchset also includes patches from previous postings i.e. patches to replace per-filesystem encryption config options with a single config option that affects all filesystems making use of fscrypt code. Chandan Rajendra (10): ext4: use IS_ENCRYPTED() to check encryption status f2fs: use IS_ENCRYPTED() to check encryption status fscrypt: remove filesystem specific build config option Consolidate "post read processing" into a new file fsverity: Add call back to decide if verity check has to be performed Introduce REQ_POST_READ_PROC bio flag fsverity: Add call back to determine readpage limit fsverity: Add call back to verify file holes fs/mpage.c: Integrate post read processing ext4: Wire up ext4_readpage[s] to use mpage_readpage[s] Documentation/filesystems/fscrypt.rst | 4 +- arch/mips/configs/generic_defconfig | 2 +- arch/nds32/configs/defconfig | 2 +- arch/s390/configs/debug_defconfig | 2 +- arch/s390/configs/performance_defconfig | 2 +- fs/Makefile | 3 +- fs/crypto/Kconfig | 5 +- fs/crypto/bio.c | 21 +- fs/crypto/crypto.c | 1 + fs/crypto/fscrypt_private.h | 4 +- fs/ext4/Kconfig | 15 - fs/ext4/Makefile | 2 +- fs/ext4/dir.c | 10 +- fs/ext4/ext4.h | 14 +- fs/ext4/ext4_jbd2.h | 2 +- fs/ext4/extents.c | 4 +- fs/ext4/ialloc.c | 2 +- fs/ext4/inode.c | 29 +- fs/ext4/ioctl.c | 4 +- fs/ext4/move_extent.c | 3 +- fs/ext4/namei.c | 18 +- fs/ext4/page-io.c | 9 +- fs/ext4/readpage.c | 444 ------------------------ fs/ext4/super.c | 43 ++- fs/ext4/sysfs.c | 4 +- fs/f2fs/Kconfig | 12 +- fs/f2fs/data.c | 4 +- fs/f2fs/dir.c | 10 +- fs/f2fs/f2fs.h | 14 +- fs/f2fs/file.c | 10 +- fs/f2fs/inode.c | 4 +- fs/f2fs/namei.c | 6 +- fs/f2fs/super.c | 8 +- fs/f2fs/sysfs.c | 4 +- fs/mpage.c | 77 +++- fs/post_read_process.c | 128 +++++++ fs/ubifs/Kconfig | 12 +- fs/ubifs/Makefile | 2 +- fs/ubifs/ioctl.c | 4 +- fs/ubifs/sb.c | 2 +- fs/ubifs/super.c | 2 +- fs/ubifs/ubifs.h | 5 +- fs/verity/verify.c | 12 + include/linux/blk_types.h | 2 + include/linux/fs.h | 4 +- include/linux/fscrypt.h | 405 ++++++++++++++++++++- include/linux/fscrypt_notsupp.h | 231 ------------ include/linux/fscrypt_supp.h | 204 ----------- include/linux/fsverity.h | 3 + include/linux/post_read_process.h | 21 ++ 50 files changed, 757 insertions(+), 1078 deletions(-) delete mode 100644 fs/ext4/readpage.c create mode 100644 fs/post_read_process.c delete mode 100644 include/linux/fscrypt_notsupp.h delete mode 100644 include/linux/fscrypt_supp.h create mode 100644 include/linux/post_read_process.h