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: 1279037 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=dfrGTfJj; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49BqhR6CZlz9sTH for ; Wed, 29 Apr 2020 17:21:59 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726766AbgD2HV6 (ORCPT ); Wed, 29 Apr 2020 03:21:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726742AbgD2HVp (ORCPT ); Wed, 29 Apr 2020 03:21:45 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 57523C09B050 for ; Wed, 29 Apr 2020 00:21:42 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id f132so1652066qke.11 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=D/uNH8Rl+uUolgY+wqvzFH2yZWynEUz7oc8c1sDmHTRFb9ViGtPsUXc9Je63+upvNb 21S9u/0ilnzRco0ha7ht15M0d1HC9VByb+C9zPzNgpL3yDMJC2qSBD7zlVjzl29R6qAh v8JtB08Ld88c8TD0Nn+hbHsTGLIoOBdn4gd4WjJPkc3Imo0DgXmu4/dDBWMmnfvh/0cm RoQ1lL6m9T5xgJpZkTz/JraiFHHFXT1XEN/vk8tsDkpclRXLW9ZQI+zIcLh89/OE2pt7 ez/4Ve94qc9UamtUKw8SWtxEsdMYkuPFcFmu/rh4h+KSLVw8SJrc+MFAZdaW5byFdDD5 SR3w== X-Gm-Message-State: AGi0PuYfGJMb5th3WMTlfZagyAO2Dm3V2IEbYlUSjL+gJ37ojbm+mwYK iI9Ox9l8BHbJWzvIrDxK/o1usRy21Ss= 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-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@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 */