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| author | Christoph Hellwig <hch@lst.de> | 2023-03-28 14:19:50 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-04-17 18:01:21 +0200 |
| commit | e44ca71cfe07c5133a35102f2aeb200370614bb2 (patch) | |
| tree | c644f8eb4db3806be3f772103c3d9f8e92a7f458 /fs/btrfs/ordered-data.c | |
| parent | 53f2c20687ba2cfce79d87f487c281ef7a4b25ce (diff) | |
| download | linux-stable-e44ca71cfe07c5133a35102f2aeb200370614bb2.tar.gz linux-stable-e44ca71cfe07c5133a35102f2aeb200370614bb2.tar.bz2 linux-stable-e44ca71cfe07c5133a35102f2aeb200370614bb2.zip | |
btrfs: move ordered_extent internal sanity checks into btrfs_split_ordered_extent
Move the three checks that are about ordered extent internal sanity
checking into btrfs_split_ordered_extent instead of doing them in the
higher level btrfs_extract_ordered_extent routine.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Tested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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; |