diff options
| author | David Sterba <dsterba@suse.com> | 2024-01-24 15:59:36 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2024-03-04 16:24:48 +0100 |
| commit | 5378ea6ea095e25bb32fa1a76e29c8aa4a3ff6c5 (patch) | |
| tree | 8fd021bc34e4367f5a5ff1d7249b7c20cc1498d6 | |
| parent | 53e4d8c29095f169be2b1593bff8e4feb44ce94e (diff) | |
btrfs: unify handling of return values of btrfs_insert_empty_items()
The error values returned by btrfs_insert_empty_items() are following
the common patter of 0/-errno, but some callers check for a value > 0,
which can't happen. Document that and update calls to not expect
positive values.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/ctree.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/file-item.c | 3 | ||||
| -rw-r--r-- | fs/btrfs/uuid-tree.c | 2 |
3 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 33145da449cc..c878ca466b7c 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -4280,6 +4280,10 @@ void btrfs_setup_item_for_insert(struct btrfs_trans_handle *trans, /* * Given a key and some data, insert items into the tree. * This does all the path init required, making room in the tree if needed. + * + * Returns: 0 on success + * -EEXIST if the first key already exists + * < 0 on other errors */ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index f7ef9fa469b9..e58fb5347e65 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -176,7 +176,6 @@ int btrfs_insert_hole_extent(struct btrfs_trans_handle *trans, sizeof(*item)); if (ret < 0) goto out; - BUG_ON(ret); /* Can't happen */ leaf = path->nodes[0]; item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_file_extent_item); @@ -1226,8 +1225,6 @@ insert: ins_size); if (ret < 0) goto out; - if (WARN_ON(ret != 0)) - goto out; leaf = path->nodes[0]; csum: item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item); diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c index b8c6e46dd499..b0aff297d67d 100644 --- a/fs/btrfs/uuid-tree.c +++ b/fs/btrfs/uuid-tree.c @@ -113,7 +113,7 @@ int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans, u8 *uuid, u8 type, ret = btrfs_insert_empty_item(trans, uuid_root, path, &key, sizeof(subid_le)); - if (ret >= 0) { + if (ret == 0) { /* Add an item for the type for the first time */ eb = path->nodes[0]; slot = path->slots[0]; |