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 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 5BFD8ECAAD8 for ; Wed, 14 Sep 2022 11:58:53 +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 1oYR2Z-0000BP-Ow; Wed, 14 Sep 2022 11:58:51 +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 1oYR2Y-0000BI-SE for linux-f2fs-devel@lists.sourceforge.net; Wed, 14 Sep 2022 11:58:50 +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: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:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ysbzNeM5dBSWtJJKsq2Swoiwiz1BFCRgVwF1qKm8ZKs=; b=bZa7xaJkgJyHEb1UqhFUFEIEbv D2X/W9ib4gdRby+YDMBQaUAjxsAh8mOJg8YFpNVEqWfR2V83bIHgyEUou5dOXIaO+wXpd0QXrnrkE j5Xpqj+FixOyzgtUn8c6ufDtdKyXUxK1ZHYQpKRfHhc+52WLhxEtm2j5feOq6YJnNawA=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version: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:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=ysbzNeM5dBSWtJJKsq2Swoiwiz1BFCRgVwF1qKm8ZKs=; b=D jlNHd/PyDwc0mijn/Qlgs6rGNELX/ttPLMrsfmS4l1NGfZhyX1lFPTb2ZgmIFoxyrueQU8gcCi71U 2FGLZePHF77wsa5q6Unral+OrkLY2NaGgTtG8wtZwTUFCZS9KnUadBbNR/6imRLkZvTNXnqbt0VGY U19yE0mEo9oXaQeQ=; Received: from ams.source.kernel.org ([145.40.68.75]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1oYR2X-0007j9-Ue for linux-f2fs-devel@lists.sourceforge.net; Wed, 14 Sep 2022 11:58:50 +0000 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 ams.source.kernel.org (Postfix) with ESMTPS id D99F6B81A7A for ; Wed, 14 Sep 2022 11:58:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FAB7C433C1; Wed, 14 Sep 2022 11:58:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663156721; bh=VeMXpngMhmJhAzTQAASry9H1oAnhvGB+HbWm7AidMcg=; h=From:To:Cc:Subject:Date:From; b=QPU7V2T1Twks/19Ouj4VBP41UknWBzCtHMQwaN6bT0rxjJaEXre25NvGrYZsd+Y+q wQdYlRNHdvTpaFq0YMEpbJartNehfF0SUOBP9l8nhM5sEs0KylYHonHTVeqecTjYcx NI7yp8juFObkq5bV6L0YCNWCwCauyGmnkGvLu4lzgnclLyzN24MJHUcJ5YyDwBykmf hMxviZdfGCifaf15lxgLacZhKbNdg5CLyvovpPKz5g9eN670H4ucSFloJ+a5r6t7qg LBPItb7L8TtIOahLO7/DPCO/G5I1pjm3/HQOOAweSefsQ+Dv91rWvPb7ontPOYlj8Z peBfHMxPHoA+A== From: Chao Yu To: jaegeuk@kernel.org Date: Wed, 14 Sep 2022 19:58:35 +0800 Message-Id: <20220914115835.2998424-1-chao@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Headers-End: 1oYR2X-0007j9-Ue Subject: [f2fs-dev] [RFC PATCH v3] f2fs: record need_fsck in super_block 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-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Once CP_ERROR_FLAG is set, checkpoint is disallowed to be triggered to persist CP_FSCK_FLAG, fsck won't repair the image due to lack of CP_FSCK_FLAG. This patch proposes to persist newly introduced SB_NEED_FSCK flag into super block if CP_ERROR_FLAG and SBI_NEED_FSCK is set, later, once fsck detect this flag, it can check and repair corrupted image in time. Signed-off-by: Chao Yu --- v3: - fix to add missing cpu_to_le16() fs/f2fs/checkpoint.c | 6 +++++- fs/f2fs/f2fs.h | 1 + fs/f2fs/super.c | 26 ++++++++++++++++++++++++++ include/linux/f2fs_fs.h | 5 ++++- 4 files changed, 36 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index c3119e4c890c..0836fce40394 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -30,8 +30,12 @@ void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) { f2fs_build_fault_attr(sbi, 0, 0); set_ckpt_flags(sbi, CP_ERROR_FLAG); - if (!end_io) + if (!end_io) { f2fs_flush_merged_writes(sbi); + + if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) + f2fs_update_sb_flags(sbi, SB_NEED_FSCK); + } } /* diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index dee7b67a17a6..1960a98c7555 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3556,6 +3556,7 @@ int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); int f2fs_quota_sync(struct super_block *sb, int type); loff_t max_file_blocks(struct inode *inode); void f2fs_quota_off_umount(struct super_block *sb); +void f2fs_update_sb_flags(struct f2fs_sb_info *sbi, unsigned int flag); int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); int f2fs_sync_fs(struct super_block *sb, int sync); int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b8e5fe244596..fe9a6e02d81f 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3846,6 +3846,32 @@ int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) return err; } +void f2fs_update_sb_flags(struct f2fs_sb_info *sbi, unsigned int flag) +{ + unsigned short s_flags; + int err; + + if (le16_to_cpu(F2FS_RAW_SUPER(sbi)->s_flags) & SB_NEED_FSCK) + return; + + f2fs_down_write(&sbi->sb_lock); + + s_flags = le16_to_cpu(F2FS_RAW_SUPER(sbi)->s_flags); + + if (s_flags & SB_NEED_FSCK) + goto out_unlock; + + F2FS_RAW_SUPER(sbi)->s_flags = cpu_to_le16(s_flags | SB_NEED_FSCK); + + err = f2fs_commit_super(sbi, false); + if (err) { + f2fs_warn(sbi, "f2fs_commit_super fails to persist flag: %u, err:%d", flag, err); + F2FS_RAW_SUPER(sbi)->s_flags = cpu_to_le16(s_flags); + } +out_unlock: + f2fs_up_write(&sbi->sb_lock); +} + static int f2fs_scan_devices(struct f2fs_sb_info *sbi) { struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index d445150c5350..124176e2a42c 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -73,6 +73,8 @@ struct f2fs_device { __le32 total_segments; } __packed; +#define SB_NEED_FSCK 0x00000001 /* need fsck */ + struct f2fs_super_block { __le32 magic; /* Magic Number */ __le16 major_ver; /* Major Version */ @@ -116,7 +118,8 @@ struct f2fs_super_block { __u8 hot_ext_count; /* # of hot file extension */ __le16 s_encoding; /* Filename charset encoding */ __le16 s_encoding_flags; /* Filename charset encoding flags */ - __u8 reserved[306]; /* valid reserved region */ + __le16 s_flags; /* super block flags */ + __u8 reserved[304]; /* valid reserved region */ __le32 crc; /* checksum of superblock */ } __packed; -- 2.25.1 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel