| Message ID | orpov8pn1x.fsf@livre.home (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/cmds-check.c b/cmds-check.c index 0165fba..e563354 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -5208,9 +5208,10 @@ static int process_extent_item(struct btrfs_root *root, ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item); refs = btrfs_extent_refs(eb, ei); - if (btrfs_extent_flags(eb, ei) & BTRFS_EXTENT_FLAG_TREE_BLOCK) + if (btrfs_extent_flags(eb, ei) & BTRFS_EXTENT_FLAG_TREE_BLOCK) { metadata = 1; - else + num_bytes = root->leafsize; + } else metadata = 0; add_extent_rec(extent_cache, NULL, 0, key.objectid, num_bytes,
When scanning extents, we didn't set num_bytes when visiting a tree block extent. On the corrupted filesystem I was trying to fix, this caused an extent to have its size guessed as zero, so we'd compute end as start-1, which caused us to hit insert_state's BUG_ON(end<start). Signed-off-by: Alexandre Oliva <oliva@gnu.org> --- cmds-check.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)