linux-kernel - [PATCH] f2fs: fix to set SBI_NEED_FSCK flag for inconsistent inode

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Message-ID: <20201009024048.50089-1-yuchao0@huawei.com>
Date:   Fri, 9 Oct 2020 10:40:48 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] f2fs: fix to set SBI_NEED_FSCK flag for inconsistent inode

If compressed inode has inconsistent fields on i_compress_algorithm,
i_compr_blocks and i_log_cluster_size, we missed to set SBI_NEED_FSCK
to notice fsck to repair the inode, fix it.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/inode.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index d5664bc7d6c6..657db2fb6739 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -299,6 +299,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
 						i_log_cluster_size)) {
 		if (ri->i_compress_algorithm >= COMPRESS_MAX) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
 				"compress algorithm: %u, run fsck to fix",
 				  __func__, inode->i_ino,
@@ -307,6 +308,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 		}
 		if (le64_to_cpu(ri->i_compr_blocks) >
 				SECTOR_TO_BLOCK(inode->i_blocks)) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
 				"i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
 				  __func__, inode->i_ino,
@@ -316,6 +318,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 		}
 		if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
 			ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
 				"log cluster size: %u, run fsck to fix",
 				  __func__, inode->i_ino,
-- 
2.26.2