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Subject[PATCH] f2fs: drop inplace IO if fs status is abnormal
Date
If filesystem has cp_error or need_fsck status, let's drop inplace IO
to avoid further corruption of fs data.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fs/f2fs/segment.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 6e740ecf0814..3de119e5c934 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -3551,7 +3551,13 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
set_sbi_flag(sbi, SBI_NEED_FSCK);
f2fs_warn(sbi, "%s: incorrect segment(%u) type, run fsck to fix.",
__func__, segno);
- return -EFSCORRUPTED;
+ err = -EFSCORRUPTED;
+ goto drop_bio;
+ }
+
+ if (is_sbi_flag_set(sbi, SBI_NEED_FSCK) || f2fs_cp_error(sbi)) {
+ err = -EIO;
+ goto drop_bio;
}

stat_inc_inplace_blocks(fio->sbi);
@@ -3565,6 +3571,15 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE);
}

+ return err;
+drop_bio:
+ if (fio->bio) {
+ struct bio *bio = *(fio->bio);
+
+ bio->bi_status = BLK_STS_IOERR;
+ bio_endio(bio);
+ fio->bio = NULL;
+ }
return err;
}

--
2.29.2
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