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=-11.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 8C286C4332B for ; Thu, 18 Mar 2021 13:34:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CCC660238 for ; Thu, 18 Mar 2021 13:34:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230324AbhCRNdt (ORCPT ); Thu, 18 Mar 2021 09:33:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230002AbhCRNdg (ORCPT ); Thu, 18 Mar 2021 09:33:36 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6881CC06174A; Thu, 18 Mar 2021 06:33:36 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: shreeya) with ESMTPSA id A91E51F45F32 From: Shreeya Patel To: krisman@collabora.com, jaegeuk@kernel.org, yuchao0@huawei.com, tytso@mit.edu, adilger.kernel@dilger.ca, drosen@google.com, ebiggers@google.com Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, kernel@collabora.com, andre.almeida@collabora.com, Shreeya Patel Subject: [PATCH v2 0/4] Make UTF-8 encoding loadable Date: Thu, 18 Mar 2021 19:03:01 +0530 Message-Id: <20210318133305.316564-1-shreeya.patel@collabora.com> X-Mailer: git-send-email 2.30.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org utf8data.h_shipped has a large database table which is an auto-generated decodification trie for the unicode normalization functions and it is not necessary to carry this large table in the kernel. Goal is to make UTF-8 encoding loadable by converting it into a module and adding a layer between the filesystems and the utf8 module which will load the module whenever any filesystem that needs unicode is mounted. Unicode is the subsystem and utf8 is a charachter encoding for the subsystem, hence first two patches in the series are renaming functions and file name to unicode for better understanding the difference between UTF-8 module and unicode layer. 3rd patch resolves the warning reported by kernel test robot. Last patch in the series adds the layer and utf8 module. --- Changes in v2 - Remove the duplicate file from the last patch. - Make the wrapper functions inline. - Remove msleep and use try_module_get() and module_put() for ensuring that module is loaded correctly and also doesn't get unloaded while in use. - Resolve the warning reported by kernel test robot. - Resolve all the checkpatch.pl warnings. Shreeya Patel (4): fs: unicode: Rename function names from utf8 to unicode fs: unicode: Rename utf8-core file to unicode-core fs: unicode: Use strscpy() instead of strncpy() fs: unicode: Add utf8 module and a unicode layer fs/ext4/hash.c | 2 +- fs/ext4/namei.c | 12 ++-- fs/ext4/super.c | 6 +- fs/f2fs/dir.c | 12 ++-- fs/f2fs/super.c | 6 +- fs/libfs.c | 6 +- fs/unicode/Kconfig | 11 +++- fs/unicode/Makefile | 5 +- fs/unicode/unicode-core.c | 60 ++++++++++++++++++++ fs/unicode/utf8-selftest.c | 8 +-- fs/unicode/{utf8-core.c => utf8mod.c} | 80 +++++++++++++++------------ include/linux/unicode.h | 77 ++++++++++++++++++++------ 12 files changed, 206 insertions(+), 79 deletions(-) create mode 100644 fs/unicode/unicode-core.c rename fs/unicode/{utf8-core.c => utf8mod.c} (68%) -- 2.30.1