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f2fs: fix to update superblock crc in sanity_check_area_boundary()

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This patch fixes the bug reported by Sashiko:

We should update superblock crc along w/ raw_super->segment_count in
sanity_check_area_boundary() if sb_checksum feature is enabled.

Cc: stable@kernel.org
Fixes: d440c52d31 ("f2fs: support superblock checksum")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2026-10-26 08:23:50 +08:00 committed by Jaegeuk Kim
parent cd6d8b1891
commit f8f956c7ec
1 changed files with 6 additions and 0 deletions
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6
fs/f2fs/super.c
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@ -4084,6 +4084,12 @@ static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
/* fix in-memory information all the time */
raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
segment0_blkaddr) >> log_blocks_per_seg);
if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
__u32 crc = f2fs_crc32(raw_super,
offsetof(struct f2fs_super_block, crc));
raw_super->crc = cpu_to_le32(crc);
}
if (f2fs_readonly(sb) || f2fs_hw_is_readonly(sbi)) {
set_sbi_flag(sbi, SBI_NEED_SB_WRITE);