diff options
Diffstat (limited to 'fs/btrfs/ordered-data.c')
| -rw-r--r-- | fs/btrfs/ordered-data.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 2f68ae1e45b4..8a166a5c9a66 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -1149,6 +1149,16 @@ int btrfs_split_ordered_extent(struct btrfs_ordered_extent *ordered, u64 pre, trace_btrfs_ordered_extent_split(BTRFS_I(inode), ordered); + /* We cannot split once ordered extent is past end_bio. */ + if (WARN_ON_ONCE(ordered->bytes_left != ordered->disk_num_bytes)) + return -EINVAL; + /* We cannot split a compressed ordered extent. */ + if (WARN_ON_ONCE(ordered->disk_num_bytes != ordered->num_bytes)) + return -EINVAL; + /* Checksum list should be empty. */ + if (WARN_ON_ONCE(!list_empty(&ordered->list))) + return -EINVAL; + spin_lock_irq(&tree->lock); /* Remove from tree once */ node = &ordered->rb_node; |