From patchwork Fri Aug 11 10:08:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13350514 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8190FC001DB for ; Fri, 11 Aug 2023 10:11:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235658AbjHKKLA (ORCPT ); Fri, 11 Aug 2023 06:11:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235659AbjHKKK3 (ORCPT ); Fri, 11 Aug 2023 06:10:29 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 329F835A9; Fri, 11 Aug 2023 03:09:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=FTSIEgUybviHzlYdK9QZpWvtnyUm2/Yw6t7t+195RbU=; b=DHgQwyDJFKuZfEj0aczO0zgWUA IxGXygEcWVaJT3P4880ccMLLdVQ9HYI3u6Stmh3O0R05FG4olVGK6AQXnq6lJqu0vMpQdG3SXG33k kwFmJcooSX0d23Dy7shGkCujG1i2A/QM2D3vp2PG5NCQO+jP8Vpa7vLkF3Q6XXzdPZIBTX8oz6fmp OTWTZvr1hY9zyoAeOQ9NgyEKN5pTi7NSq6+DWVl4Z8Imc7Z9TekL0XUR74wfnqiUHBO6m9MKge8Pb +6lUymIPqXX+P0/3w+PQbJOCEeJiERGTyw6HvepoFvhefKyjxB39D3KG6+fbSgBWgob/64MMV/Ynh 59OmrZsw==; Received: from [88.128.92.63] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qUP55-00A5tR-15; Fri, 11 Aug 2023 10:09:19 +0000 From: Christoph Hellwig To: Al Viro , Christian Brauner Cc: Jens Axboe , Denis Efremov , Josef Bacik , Stefan Haberland , Jan Hoeppner , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , "Darrick J . Wong" , Chris Mason , David Sterba , linux-block@vger.kernel.org, nbd@other.debian.org, linux-s390@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 16/17] fs: remove get_super Date: Fri, 11 Aug 2023 12:08:27 +0200 Message-Id: <20230811100828.1897174-17-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230811100828.1897174-1-hch@lst.de> References: <20230811100828.1897174-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org get_super is unused now, remove it. Signed-off-by: Christoph Hellwig Reviewed-by: Christian Brauner --- fs/super.c | 37 ------------------------------------- include/linux/fs.h | 1 - 2 files changed, 38 deletions(-) diff --git a/fs/super.c b/fs/super.c index 714dbae58b5e8e..d3d27ff009d5f6 100644 --- a/fs/super.c +++ b/fs/super.c @@ -808,43 +808,6 @@ void iterate_supers_type(struct file_system_type *type, EXPORT_SYMBOL(iterate_supers_type); -/** - * get_super - get the superblock of a device - * @bdev: device to get the superblock for - * - * Scans the superblock list and finds the superblock of the file system - * mounted on the device given. %NULL is returned if no match is found. - */ -struct super_block *get_super(struct block_device *bdev) -{ - struct super_block *sb; - - if (!bdev) - return NULL; - - spin_lock(&sb_lock); -rescan: - list_for_each_entry(sb, &super_blocks, s_list) { - if (hlist_unhashed(&sb->s_instances)) - continue; - if (sb->s_bdev == bdev) { - sb->s_count++; - spin_unlock(&sb_lock); - down_read(&sb->s_umount); - /* still alive? */ - if (sb->s_root && (sb->s_flags & SB_BORN)) - return sb; - up_read(&sb->s_umount); - /* nope, got unmounted */ - spin_lock(&sb_lock); - __put_super(sb); - goto rescan; - } - } - spin_unlock(&sb_lock); - return NULL; -} - /** * get_active_super - get an active reference to the superblock of a device * @bdev: device to get the superblock for diff --git a/include/linux/fs.h b/include/linux/fs.h index 6867512907d6e5..14b5777a24a0b2 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2913,7 +2913,6 @@ extern int vfs_readlink(struct dentry *, char __user *, int); extern struct file_system_type *get_filesystem(struct file_system_type *fs); extern void put_filesystem(struct file_system_type *fs); extern struct file_system_type *get_fs_type(const char *name); -extern struct super_block *get_super(struct block_device *); extern struct super_block *get_active_super(struct block_device *bdev); extern void drop_super(struct super_block *sb); extern void drop_super_exclusive(struct super_block *sb);