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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54119C77B6E for ; Thu, 13 Apr 2023 15:52:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230145AbjDMPwa (ORCPT ); Thu, 13 Apr 2023 11:52:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229994AbjDMPwW (ORCPT ); Thu, 13 Apr 2023 11:52:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A14B359EB for ; Thu, 13 Apr 2023 08:52:21 -0700 (PDT) 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 4028B637EA for ; Thu, 13 Apr 2023 15:52:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 82926C433EF; Thu, 13 Apr 2023 15:52:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681401140; bh=+KaZHsH5BwQxJv/DrwuhaDtI/hWlSDJNkFdGd51vHkk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XekG9Ddf3ze58slKDqpsm+JRVDL1IFyW15ZqTMpO7SFgGmV3C5ba56gZVOsLeuf6e ghuLo/PabSwKi/+FfcS2Npph6JWOt3/yy1bruLkgRV48z3sfZPK7xjdRVhyaqevmwl mJGIxXgjLLerLKeI7qOdGA9awjcaK9uH3nccw/HKoPG9yX3kEuk6vCmlbwhItCH+n1 p3hck/dZP0fSRGKw5LSq/dSrVOurrGjjRoktTVGAvroe4A43XxSkHu/owyRccySM0M 3d1wPrMRSk5LDcxlRca9621cL+H9aBaeqMxDvZRuoOnZ7TBL5g2W2b1r/WrJAX3man j5sxJrqhLkYnw== Date: Thu, 13 Apr 2023 08:52:18 -0700 From: Jaegeuk Kim To: Chao Yu Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [f2fs-dev] [PATCH v2] f2fs: relax sanity check if checkpoint is corrupted Message-ID: References: <20230407181539.4136580-1-jaegeuk@kernel.org> <82ecc91f-a739-4744-29da-227daf5e45a2@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <82ecc91f-a739-4744-29da-227daf5e45a2@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/13, Chao Yu wrote: > On 2023/4/13 0:17, Jaegeuk Kim wrote: > > 1. extent_cache > > - let's drop the largest extent_cache > > 2. invalidate_block > > - don't show the warnings > > > > Signed-off-by: Jaegeuk Kim > > --- > > > > Change log from v1: > > - add one more case to skip the error message > > > > fs/f2fs/checkpoint.c | 10 ++++++++++ > > fs/f2fs/extent_cache.c | 22 +++++++++++++++------- > > 2 files changed, 25 insertions(+), 7 deletions(-) > > > > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c > > index 448ecf5000b8..64b3860f50ee 100644 > > --- a/fs/f2fs/checkpoint.c > > +++ b/fs/f2fs/checkpoint.c > > @@ -152,6 +152,11 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr, > > se = get_seg_entry(sbi, segno); > > exist = f2fs_test_bit(offset, se->cur_valid_map); > > + > > + /* skip data, if we already have an error in checkpoint. */ > > + if (unlikely(f2fs_cp_error(sbi))) > > + return exist; > > + > > if (exist && type == DATA_GENERIC_ENHANCE_UPDATE) { > > f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d", > > blkaddr, exist); > > @@ -202,6 +207,11 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, > > case DATA_GENERIC_ENHANCE_UPDATE: > > if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || > > blkaddr < MAIN_BLKADDR(sbi))) { > > + > > + /* Skip to emit an error message. */ > > + if (unlikely(f2fs_cp_error(sbi))) > > + return false; > > + > > f2fs_warn(sbi, "access invalid blkaddr:%u", > > blkaddr); > > set_sbi_flag(sbi, SBI_NEED_FSCK); > > diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c > > index 9a8153895d20..bea6ab9d846a 100644 > > --- a/fs/f2fs/extent_cache.c > > +++ b/fs/f2fs/extent_cache.c > > @@ -23,18 +23,26 @@ bool sanity_check_extent_cache(struct inode *inode) > > { > > struct f2fs_sb_info *sbi = F2FS_I_SB(inode); > > struct f2fs_inode_info *fi = F2FS_I(inode); > > + struct extent_tree *et = fi->extent_tree[EX_READ]; > > struct extent_info *ei; > > - if (!fi->extent_tree[EX_READ]) > > + if (!et) > > + return true; > > + > > + ei = &et->largest; > > + if (!ei->len) > > return true; > > - ei = &fi->extent_tree[EX_READ]->largest; > > + /* Let's drop, if checkpoint got corrupted. */ > > + if (is_set_ckpt_flags(sbi, CP_ERROR_FLAG)) { > > + ei->len = 0; > > + et->largest_updated = true; > > Thsi field indicates whether it is needed to update largest extent into > inode page, since cp_error is unrecoverable, it seems we don't needed to > update it. Intention is to avoid any assumption like that, but sync the same logic when updating this. > > Thanks, > > > + return true; > > + } > > - 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))) { > > + if (!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=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix", > > __func__, inode->i_ino,