From patchwork Wed Apr 29 07:21:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Tangirala X-Patchwork-Id: 11516183 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 37BD715AB for ; Wed, 29 Apr 2020 07:22:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1CD6D2076B for ; Wed, 29 Apr 2020 07:22:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="dfrGTfJj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726798AbgD2HV5 (ORCPT ); Wed, 29 Apr 2020 03:21:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726755AbgD2HVo (ORCPT ); Wed, 29 Apr 2020 03:21:44 -0400 Received: from mail-qv1-xf4a.google.com (mail-qv1-xf4a.google.com [IPv6:2607:f8b0:4864:20::f4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 701ADC0A3BF8 for ; Wed, 29 Apr 2020 00:21:42 -0700 (PDT) Received: by mail-qv1-xf4a.google.com with SMTP id x26so1601905qvd.20 for ; Wed, 29 Apr 2020 00:21:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=dcBMNhJyVF3JG7u2k+hpIfX5J5/+YNOMhft7o2B+Ju4=; b=dfrGTfJjx+xsOcKHeejLK4oMt9g5AcqcRK5/UgBb14pn/JbWFb1vMwUyV+V1slwjtj 2nFObH6Yei1hbvG9BW2Ll9vbpOcTaaQWiATCvTV1B/VYCTXeUPCW+hLpf049cVmCdboI rHS6z3TM/IJRit3QH4E1ap9PyEFxHqulYCq7YE0up+baJBD6tgxW4NrGKOf9TJ+F3+Km QcXzGA2M5GB6W6B2ghC6wC+zS04Bwtty77EltXC43D73oIukh3a67IIcPcLbMepNDXfr 2Xrzb2Hp+Ov7eBjxW/m2vgPs2VZpLO9whdG848N9ksL78T4b8vthHOeR4v9S1c4cj0LF qOJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=dcBMNhJyVF3JG7u2k+hpIfX5J5/+YNOMhft7o2B+Ju4=; b=n4BvHnNDhhfT31CelBewVi1M1S2ImnkiSJ3R+pNeNTAFi/Xip20uyr3X1tDP5D9Ke4 34qMa6fvUN0Nn5j7VQwcULMAjBhQ4tCrIXJ7WzOwpVv+Uf8X+HP7iDPfBt1i8b2keQYg Lo42MaO0kJP14MAeY1BaKPRSoZi8Taglqk9IYv0/qBFsmbz+F+JQKckshspYj30/sB1K mmkJw9biiImKUeSLmIeoz0XH0eEZJVOiTQSkK03cH16jiyiNQa0sFEY0OseQq9VshEgR hi9hHZMrQDll/W6h51nplpyAM5MGeV3tab70E57CpFF9AT9nPn3P2Z5LqoYSaKaQyU9C h1pQ== X-Gm-Message-State: AGi0PuYlhIGhCz6QYNfYWmtw4Xiid42ZWoZHseAyIKFlS+UXbnuhq+TG c7aOWLN2yNmoPLTxdQAtGW8BeboDsWkG9MYunCOBX6smatlFv4bSc9J2/tzC4uIkM7YK4Dq+loJ EvZ4kUf3RSHCnW51U6OWUuUcFBVzvxc+cwRlD8CQjvzazSNXOhM5RKQjLnMfwMwY8OOit X-Google-Smtp-Source: APiQypJz89cxZWdYzpcW5zsQCLnnJh9hiKeWJOQg2VT8hOJvTQfkY3cXLSwBZXj2P4l7aalg3AeJ9YcyX18= X-Received: by 2002:ad4:55e7:: with SMTP id bu7mr32187009qvb.88.1588144901506; Wed, 29 Apr 2020 00:21:41 -0700 (PDT) Date: Wed, 29 Apr 2020 07:21:18 +0000 In-Reply-To: <20200429072121.50094-1-satyat@google.com> Message-Id: <20200429072121.50094-10-satyat@google.com> Mime-Version: 1.0 References: <20200429072121.50094-1-satyat@google.com> X-Mailer: git-send-email 2.26.2.303.gf8c07b1a785-goog Subject: [PATCH v11 09/12] fs: introduce SB_INLINECRYPT From: Satya Tangirala To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-ext4@vger.kernel.org Cc: Barani Muthukumaran , Kuohong Wang , Kim Boojin , Satya Tangirala Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Introduce SB_INLINECRYPT, which is set by filesystems that wish to use blk-crypto for file content en/decryption. This flag maps to the '-o inlinecrypt' mount option which multiple filesystems will implement, and code in fs/crypto/ needs to be able to check for this mount option in a filesystem-independent way. Signed-off-by: Satya Tangirala --- fs/proc_namespace.c | 1 + include/linux/fs.h | 1 + 2 files changed, 2 insertions(+) diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c index 273ee82d8aa97..8bf195d3bda69 100644 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@ -49,6 +49,7 @@ static int show_sb_opts(struct seq_file *m, struct super_block *sb) { SB_DIRSYNC, ",dirsync" }, { SB_MANDLOCK, ",mand" }, { SB_LAZYTIME, ",lazytime" }, + { SB_INLINECRYPT, ",inlinecrypt" }, { 0, NULL } }; const struct proc_fs_info *fs_infop; diff --git a/include/linux/fs.h b/include/linux/fs.h index 4f6f59b4f22a8..38fc6c8d4f45b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1376,6 +1376,7 @@ extern int send_sigurg(struct fown_struct *fown); #define SB_NODIRATIME 2048 /* Do not update directory access times */ #define SB_SILENT 32768 #define SB_POSIXACL (1<<16) /* VFS does not apply the umask */ +#define SB_INLINECRYPT (1<<17) /* Use blk-crypto for encrypted files */ #define SB_KERNMOUNT (1<<22) /* this is a kern_mount call */ #define SB_I_VERSION (1<<23) /* Update inode I_version field */ #define SB_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */