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=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 E6103CA9ECF for ; Fri, 1 Nov 2019 18:33:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B939121897 for ; Fri, 1 Nov 2019 18:33:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572633206; bh=O2xOXMU8ZuGa8qvDhmT8yNNHuqfhzhj+CDrM/y+R8mw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=K1RgHjZNB8C0/iG3/4rOTpKsyEyhHmP4t3VazUMdTrj0HydRPQixIdizAW6Arn8Tz BPGFsTtIdVqm5QvH6PSv86jOVAjhkwwjJyh/LbJ8ySfLjiu5MgB/laBW0IMimHtfIn J6bcPtKtyZfldKcYrv1RloSacxvSXFLzHnDWtsJ8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727500AbfKASd0 (ORCPT ); Fri, 1 Nov 2019 14:33:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:60596 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726671AbfKASd0 (ORCPT ); Fri, 1 Nov 2019 14:33:26 -0400 Received: from localhost (unknown [104.132.0.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 520EB21734; Fri, 1 Nov 2019 18:33:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572633205; bh=O2xOXMU8ZuGa8qvDhmT8yNNHuqfhzhj+CDrM/y+R8mw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hzidrk+UjF6KOAXbE6VsYklvSG6v4p6oZqYY3BHWUMifu38B/OUELpDbD+afGyp6+ 9vqZyc1hVRscVcUMFAu1Hp1/YTh9T8Bcp4XzfLAVsAi5f3V/3eF/EJzoXBfImYp//E c8EBJE/0RMsGQPUUvMoTpfJRFaLjO5W/YJe+ukw4= Date: Fri, 1 Nov 2019 11:33:24 -0700 From: Jaegeuk Kim To: Eric Biggers Cc: linux-fscrypt@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, Satya Tangirala , Paul Crowley , Paul Lawrence , "Theodore Y . Ts'o" Subject: Re: [PATCH v2 3/3] f2fs: add support for IV_INO_LBLK_64 encryption policies Message-ID: <20191101183324.GA14664@jaegeuk-macbookpro.roam.corp.google.com> References: <20191024215438.138489-1-ebiggers@kernel.org> <20191024215438.138489-4-ebiggers@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191024215438.138489-4-ebiggers@kernel.org> User-Agent: Mutt/1.8.2 (2017-04-18) Sender: linux-fscrypt-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org On 10/24, Eric Biggers wrote: > From: Eric Biggers > > f2fs inode numbers are stable across filesystem resizing, and f2fs inode > and file logical block numbers are always 32-bit. So f2fs can always > support IV_INO_LBLK_64 encryption policies. Wire up the needed > fscrypt_operations to declare support. > > Signed-off-by: Eric Biggers Acked-by: Jaegeuk Kim > --- > fs/f2fs/super.c | 26 ++++++++++++++++++++------ > 1 file changed, 20 insertions(+), 6 deletions(-) > > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c > index 1443cee158633..851ac95229263 100644 > --- a/fs/f2fs/super.c > +++ b/fs/f2fs/super.c > @@ -2308,13 +2308,27 @@ static bool f2fs_dummy_context(struct inode *inode) > return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode)); > } > > +static bool f2fs_has_stable_inodes(struct super_block *sb) > +{ > + return true; > +} > + > +static void f2fs_get_ino_and_lblk_bits(struct super_block *sb, > + int *ino_bits_ret, int *lblk_bits_ret) > +{ > + *ino_bits_ret = 8 * sizeof(nid_t); > + *lblk_bits_ret = 8 * sizeof(block_t); > +} > + > static const struct fscrypt_operations f2fs_cryptops = { > - .key_prefix = "f2fs:", > - .get_context = f2fs_get_context, > - .set_context = f2fs_set_context, > - .dummy_context = f2fs_dummy_context, > - .empty_dir = f2fs_empty_dir, > - .max_namelen = F2FS_NAME_LEN, > + .key_prefix = "f2fs:", > + .get_context = f2fs_get_context, > + .set_context = f2fs_set_context, > + .dummy_context = f2fs_dummy_context, > + .empty_dir = f2fs_empty_dir, > + .max_namelen = F2FS_NAME_LEN, > + .has_stable_inodes = f2fs_has_stable_inodes, > + .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits, > }; > #endif > > -- > 2.24.0.rc0.303.g954a862665-goog