From patchwork Wed Dec 27 17:14:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 13505407 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D63DAC46CD4 for ; Wed, 27 Dec 2023 17:17:35 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rIXXB-0007EA-Bz; Wed, 27 Dec 2023 17:17:33 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rIXX8-0007E3-3q for linux-f2fs-devel@lists.sourceforge.net; Wed, 27 Dec 2023 17:17:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; 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:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=EYHlpKE6S+zR6/nCF7g+4uplzls0l4LkrJsYkcm2H1g=; b=LmJ6qLyyfY7OwGsvKNVnaKXtTU wFX0FW8xfpxq5B8fXpMQl5xSBCW8/Y2xr7dFFxbBOoKwkoP+gSIVZ3xMeMLkQOeVg/IU3sXNmeh38 eak8PcjBqtO2V1ERVdxv0sGVMDlVlGZhfMyroaJJH8EwAo5oqMamFJRI6jrKfGKDeHnw=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; 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:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=EYHlpKE6S+zR6/nCF7g+4uplzls0l4LkrJsYkcm2H1g=; b=guyS3TyTjyg32y4fkg30lhW79I HL8lvrhdl9tTkjQ8Mg7BuU79HngCTiCCJT5TklrJX2SzHzaSCvh9nDKHAvhUcE6nnGvuHonCeuwSr EbRVeBPD1abVz7gV0C110p6gEiOMCIdkePPbBA9IzQWCBgdUCwmn2HmZwWoDn+jHVL1g=; Received: from dfw.source.kernel.org ([139.178.84.217]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rIXX7-0003Ms-54 for linux-f2fs-devel@lists.sourceforge.net; Wed, 27 Dec 2023 17:17:29 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id A08DC60F6E; Wed, 27 Dec 2023 17:17:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E073BC433C9; Wed, 27 Dec 2023 17:17:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1703697443; bh=UyjBwW0wkBL1qZTGRKDJoSDef6ohi3jee7V8AMdA4uw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OQu7/lTIHfd75ne/sZPgjpyc/3bfqgWFPzfyQMdqUvuXrwoDPgwM7phinskqLWQMi uLoQhRNHLb17IcTT0Do1M8fDVSXZZDpJxB2bsRC24STR4FXpvg1IcYPLK9s7D/UECM flRtpxML1xFv3R9sNj9pLlLFdVlmSXi0EoegJXzbLTBTKhdV1Rro9IAA7tkR4Me9jd kgIP+CBKu/OPte/qRzzufoAgAuQxfm6+E0gOFbWaKn90IwtFmc5CecF/5RlOyDTUyy vD6U7MAuytD2CcVqoCh9iNMVJKntlOzPgvdJZxN4x0+qgUBjcEqBFSjE0+OzTdigVu XBU2xoE3fARTg== From: Eric Biggers To: linux-fscrypt@vger.kernel.org Date: Wed, 27 Dec 2023 11:14:28 -0600 Message-ID: <20231227171429.9223-2-ebiggers@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231227171429.9223-1-ebiggers@kernel.org> References: <20231227171429.9223-1-ebiggers@kernel.org> MIME-Version: 1.0 X-Headers-End: 1rIXX7-0003Ms-54 Subject: [f2fs-dev] [PATCH v2 1/2] f2fs: move release of block devices to after kill_block_super() X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fsdevel@vger.kernel.org, Christoph Hellwig , Josef Bacik , linux-f2fs-devel@lists.sourceforge.net Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Eric Biggers Call destroy_device_list() and free the f2fs_sb_info from kill_f2fs_super(), after the call to kill_block_super(). This is necessary to order it after the call to fscrypt_destroy_keyring() once generic_shutdown_super() starts calling fscrypt_destroy_keyring() just after calling ->put_super. This is because fscrypt_destroy_keyring() may call into f2fs_get_devices() via the fscrypt_operations. Signed-off-by: Eric Biggers Reviewed-by: Chao Yu --- fs/f2fs/super.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 033af907c3b1d..d66e0692ac02e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1710,42 +1710,39 @@ static void f2fs_put_super(struct super_block *sb) f2fs_destroy_node_manager(sbi); f2fs_destroy_segment_manager(sbi); /* flush s_error_work before sbi destroy */ flush_work(&sbi->s_error_work); f2fs_destroy_post_read_wq(sbi); kvfree(sbi->ckpt); - sb->s_fs_info = NULL; if (sbi->s_chksum_driver) crypto_free_shash(sbi->s_chksum_driver); kfree(sbi->raw_super); - destroy_device_list(sbi); f2fs_destroy_page_array_cache(sbi); f2fs_destroy_xattr_caches(sbi); mempool_destroy(sbi->write_io_dummy); #ifdef CONFIG_QUOTA for (i = 0; i < MAXQUOTAS; i++) kfree(F2FS_OPTION(sbi).s_qf_names[i]); #endif fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy); destroy_percpu_info(sbi); f2fs_destroy_iostat(sbi); for (i = 0; i < NR_PAGE_TYPE; i++) kvfree(sbi->write_io[i]); #if IS_ENABLED(CONFIG_UNICODE) utf8_unload(sb->s_encoding); #endif - kfree(sbi); } int f2fs_sync_fs(struct super_block *sb, int sync) { struct f2fs_sb_info *sbi = F2FS_SB(sb); int err = 0; if (unlikely(f2fs_cp_error(sbi))) return 0; if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) @@ -4895,23 +4892,23 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) } static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); } static void kill_f2fs_super(struct super_block *sb) { - if (sb->s_root) { - struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct f2fs_sb_info *sbi = F2FS_SB(sb); + if (sb->s_root) { set_sbi_flag(sbi, SBI_IS_CLOSE); f2fs_stop_gc_thread(sbi); f2fs_stop_discard_thread(sbi); #ifdef CONFIG_F2FS_FS_COMPRESSION /* * latter evict_inode() can bypass checking and invalidating * compress inode cache. */ if (test_opt(sbi, COMPRESS_CACHE)) @@ -4924,20 +4921,26 @@ static void kill_f2fs_super(struct super_block *sb) .reason = CP_UMOUNT, }; stat_inc_cp_call_count(sbi, TOTAL_CALL); f2fs_write_checkpoint(sbi, &cpc); } if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb)) sb->s_flags &= ~SB_RDONLY; } kill_block_super(sb); + /* Release block devices last, after fscrypt_destroy_keyring(). */ + if (sbi) { + destroy_device_list(sbi); + kfree(sbi); + sb->s_fs_info = NULL; + } } static struct file_system_type f2fs_fs_type = { .owner = THIS_MODULE, .name = "f2fs", .mount = f2fs_mount, .kill_sb = kill_f2fs_super, .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, }; MODULE_ALIAS_FS("f2fs");