From patchwork Tue Jun 30 12:14:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Tangirala X-Patchwork-Id: 11633829 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 847E7739 for ; Tue, 30 Jun 2020 12:14:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B0BE20780 for ; Tue, 30 Jun 2020 12:14:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="OsSqYUaD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387562AbgF3MOv (ORCPT ); Tue, 30 Jun 2020 08:14:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732120AbgF3MOq (ORCPT ); Tue, 30 Jun 2020 08:14:46 -0400 Received: from mail-pl1-x649.google.com (mail-pl1-x649.google.com [IPv6:2607:f8b0:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D76FEC03E97A for ; Tue, 30 Jun 2020 05:14:45 -0700 (PDT) Received: by mail-pl1-x649.google.com with SMTP id f2so4687353plt.2 for ; Tue, 30 Jun 2020 05:14:45 -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=WYYjT2/hNkPnR18Pb1O8vFno0wa46kUGqnYNvHL7CO8=; b=OsSqYUaDlsn3RDGvRxnfKrOwwmVcSIoKG8D6+pXbsKD6FCLrWQ7Jsvin1ELj893EwN A1EIorvIYssa3wRXvBKD3Pp5AQVAVwbbcFQnApEYe0llGG59RkWdtJsMv4yoTqHMHG/L MT8D7toVHPVzVH5VL8rSdns+WpG5nKBZntcm7l1L3YDixzo8bwTPfpB53TtfGi+uWPcr uMnSqNHaY4af/zEeB7qaznrN9lZp0jjVyzzKYLL56pR0rRpLF0T2yV5GJxboGlDmy1fE g0lc4Dk9/oq1duRbjwWwlwL64IeUlgKRSQ7dvQAfUnKENvYOsPjSlWohIAehtV3joMFu AYJg== 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=WYYjT2/hNkPnR18Pb1O8vFno0wa46kUGqnYNvHL7CO8=; b=iZbdFZNvWZ0n7TRimOlyUgGCzyyJJAHFebSvLAWuiGXrk8yBnqF+b31foSCm1pjliq VPcab3OL4xiGdZxOm6J5fjeOFA3xYKQHtb1xTSH2WrAgye1zZSLdRZ8inVY1dZ0Fo+pq mUCAqbG6K3WWKWvPPuODRdOL9+BmRA7YjT6dYctZQQ4F/EuezBgtf4atG2o+JJYeXXDl 6tyFO6K5t9TYWROD40q5cG3fvz3ACCgtLclV/8+Qg1/brcU8Kx+u+CfF95c2T8DtI4dB 9HFMnE80RCS3QYm/ayXQdUdH8DZwvroHBZoIfjM9rWFnjTvF11ZwuF2eqY3o9ytwp3es gS2g== X-Gm-Message-State: AOAM530IPZG5u36iy6ZACONOGZPHo2vEOkIWAlH6YPS9BCDJ9ZqnaDff /D9LcZN13jW5eREVHF1NJ2qva2I21kmT4BsZHp7aYLTRU9sMZHwf6urbskagBMLmXrCDxxdMdfW 8OBd2YkeBkQ7uhHd3+GvMDTR35DV0c6tzRgEb7e6cjAvTsWhQBYVWeLfgqWcWCktwpSdyt7U= X-Google-Smtp-Source: ABdhPJyEEcykC3kPlH4nyjzH8L4IuQtmaVrj3RrJmq3Xhyj4L95ZMctLLgbq3tAQNaoQgla9CrRf9QIq+4E= X-Received: by 2002:a17:90a:6306:: with SMTP id e6mr3080137pjj.1.1593519284966; Tue, 30 Jun 2020 05:14:44 -0700 (PDT) Date: Tue, 30 Jun 2020 12:14:35 +0000 In-Reply-To: <20200630121438.891320-1-satyat@google.com> Message-Id: <20200630121438.891320-2-satyat@google.com> Mime-Version: 1.0 References: <20200630121438.891320-1-satyat@google.com> X-Mailer: git-send-email 2.27.0.212.ge8ba1cc988-goog Subject: [PATCH v3 1/4] fs: introduce SB_INLINECRYPT From: Satya Tangirala To: linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-ext4@vger.kernel.org Cc: Satya Tangirala , Eric Biggers Sender: linux-fscrypt-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@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 Reviewed-by: Eric Biggers --- include/linux/fs.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/fs.h b/include/linux/fs.h index 3f881a892ea7..b5e07fcdd11d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1380,6 +1380,7 @@ 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 */