From nobody Fri Sep 12 19:58:17 2025 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 DB7CEC636CC for ; Tue, 7 Feb 2023 13:51:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231387AbjBGNvg (ORCPT ); Tue, 7 Feb 2023 08:51:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231514AbjBGNv2 (ORCPT ); Tue, 7 Feb 2023 08:51:28 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E2B01E1D0 for ; Tue, 7 Feb 2023 05:51:28 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A004161408 for ; Tue, 7 Feb 2023 13:51:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE599C433D2; Tue, 7 Feb 2023 13:51:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675777887; bh=EZKYBpYclv2eyaC70CMbiuy4/z/DP/rVT2+COP6B7k4=; h=From:To:Cc:Subject:Date:From; b=H9NN8tCu7JU0D8HHeLsn4x7AQrUS0UMDr+gbWOveIWZQu3Mcaw0QL8enNqhV7rfM4 fTrxPUwPgECH1whC0b5FELUb43G1/cKOgDLc4Hsgd1JPNo7iTqYljE1iJgj5LlLV4U Ur6XPUNoF2OousCijZ7cyey/VQ2uSFgy852BXKCUuRzZR/nWV+8WQoi+ZePQgur9d7 F1Rzm/f6VIV+T3tTuRvHb6hRCayfWrq3fi9NOjkPxE0vEZObmrT5al9uYnUBg5afuW nMeHH5PkVbQ8Gg8LhPHESmYGjIO8WsBCWAMQx77VsGEwtCRSZmbtp3fp/viI3yhM7o l9N//kjNLMvgw== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu Subject: [PATCH v2] f2fs: fix to do sanity check on extent cache correctly Date: Tue, 7 Feb 2023 21:48:08 +0800 Message-Id: <20230207134808.1827869-1-chao@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In do_read_inode(), sanity check for extent cache should be called after f2fs_init_read_extent_tree(), fix it. Fixes: 72840cccc0a1 ("f2fs: allocate the extent_cache by default") Signed-off-by: Chao Yu --- v2: - just relocate sanity check on extent cache. fs/f2fs/extent_cache.c | 25 +++++++++++++++++++++++++ fs/f2fs/f2fs.h | 1 + fs/f2fs/inode.c | 22 ++++++---------------- 3 files changed, 32 insertions(+), 16 deletions(-) diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c index 1daf8c88c09b..d93fcb082c31 100644 --- a/fs/f2fs/extent_cache.c +++ b/fs/f2fs/extent_cache.c @@ -19,6 +19,31 @@ #include "node.h" #include =20 +bool sanity_check_extent_cache(struct inode *inode) +{ + struct f2fs_sb_info *sbi =3D F2FS_I_SB(inode); + struct f2fs_inode_info *fi =3D F2FS_I(inode); + struct extent_info *ei; + + if (!fi->extent_tree[EX_READ]) + return true; + + ei =3D &fi->extent_tree[EX_READ]->largest; + + if (ei->len && + (!f2fs_is_valid_blkaddr(sbi, ei->blk, + DATA_GENERIC_ENHANCE) || + !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, + DATA_GENERIC_ENHANCE))) { + set_sbi_flag(sbi, SBI_NEED_FSCK); + f2fs_warn(sbi, "%s: inode (ino=3D%lx) extent info [%u, %u, %u] is incorr= ect, run fsck to fix", + __func__, inode->i_ino, + ei->blk, ei->fofs, ei->len); + return false; + } + return true; +} + static void __set_extent_info(struct extent_info *ei, unsigned int fofs, unsigned int len, block_t blk, bool keep_clen, diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index f3c5f7740c1a..8148aeabab03 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -4136,6 +4136,7 @@ void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); /* * extent_cache.c */ +bool sanity_check_extent_cache(struct inode *inode); struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, struct rb_entry *cached_re, unsigned int ofs); struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi, diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 01b9e6f85f6b..164779c561f9 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -262,22 +262,6 @@ static bool sanity_check_inode(struct inode *inode, st= ruct page *node_page) return false; } =20 - if (fi->extent_tree[EX_READ]) { - struct extent_info *ei =3D &fi->extent_tree[EX_READ]->largest; - - if (ei->len && - (!f2fs_is_valid_blkaddr(sbi, ei->blk, - DATA_GENERIC_ENHANCE) || - !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, - DATA_GENERIC_ENHANCE))) { - set_sbi_flag(sbi, SBI_NEED_FSCK); - f2fs_warn(sbi, "%s: inode (ino=3D%lx) extent info [%u, %u, %u] is incor= rect, run fsck to fix", - __func__, inode->i_ino, - ei->blk, ei->fofs, ei->len); - return false; - } - } - if (f2fs_sanity_check_inline_data(inode)) { set_sbi_flag(sbi, SBI_NEED_FSCK); f2fs_warn(sbi, "%s: inode (ino=3D%lx, mode=3D%u) should not have inline_= data, run fsck to fix", @@ -482,6 +466,12 @@ static int do_read_inode(struct inode *inode) f2fs_init_read_extent_tree(inode, node_page); f2fs_init_age_extent_tree(inode); =20 + if (!sanity_check_extent_cache(inode)) { + f2fs_put_page(node_page, 1); + f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); + return -EFSCORRUPTED; + } + f2fs_put_page(node_page, 1); =20 stat_inc_inline_xattr(inode); --=20 2.25.1