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btrfs: add error message for metadata level mismatch

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From a recent regression report, we found that after commit 947a629988
("btrfs: move tree block parentness check into
validate_extent_buffer()") if we have a level mismatch (false alert
though), there is no error message at all.

This makes later debugging harder.  This patch will add the proper error
message for such case.

Link: https://lore.kernel.org/linux-btrfs/CABXGCsNzVxo4iq-tJSGm_kO1UggHXgq6CdcHDL=z5FL4njYXSQ@mail.gmail.com/
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2022-12-29 07:32:23 +08:00 committed by David Sterba
parent 946c2923e7
commit 77177ed17d
1 changed files with 3 additions and 0 deletions
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3
fs/btrfs/disk-io.c
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@ -530,6 +530,9 @@ static int validate_extent_buffer(struct extent_buffer *eb,
}
if (found_level != check->level) {
btrfs_err(fs_info,
"level verify failed on logical %llu mirror %u wanted %u found %u",
eb->start, eb->read_mirror, check->level, found_level);
ret = -EIO;
goto out;
}