diff options
| author | Chris Mason <chris.mason@oracle.com> | 2007-06-22 14:16:25 -0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-06-22 14:16:25 -0400 |
| commit | 54aa1f4dfdacd60a19c4471220b24e581be6f774 (patch) | |
| tree | 1462277822cc63c00ad31b522457363a5c6be6ab /fs/btrfs/transaction.c | |
| parent | 11bd143fc8243cf48c934dc1c4479a5aacf58ce3 (diff) | |
| download | lwn-54aa1f4dfdacd60a19c4471220b24e581be6f774.tar.gz lwn-54aa1f4dfdacd60a19c4471220b24e581be6f774.zip | |
Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stack
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index b5b99a85763f..321f8852755b 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -219,7 +219,8 @@ static int add_dirty_roots(struct btrfs_trans_handle *trans, struct btrfs_root *root; int i; int ret; - int err; + int err = 0; + while(1) { ret = radix_tree_gang_lookup_tag(radix, (void **)gang, 0, ARRAY_SIZE(gang), @@ -251,11 +252,12 @@ static int add_dirty_roots(struct btrfs_trans_handle *trans, err = btrfs_insert_root(trans, root->fs_info->tree_root, &root->root_key, &root->root_item); - BUG_ON(err); + if (err) + break; list_add(&dirty->list, list); } } - return 0; + return err; } static int drop_dirty_roots(struct btrfs_root *tree_root, @@ -263,7 +265,7 @@ static int drop_dirty_roots(struct btrfs_root *tree_root, { struct dirty_root *dirty; struct btrfs_trans_handle *trans; - int ret; + int ret = 0; while(!list_empty(list)) { mutex_lock(&tree_root->fs_info->fs_mutex); dirty = list_entry(list->next, struct dirty_root, list); @@ -274,14 +276,15 @@ static int drop_dirty_roots(struct btrfs_root *tree_root, BUG_ON(ret); ret = btrfs_del_root(trans, tree_root, &dirty->snap_key); - BUG_ON(ret); + if (ret) + break; ret = btrfs_end_transaction(trans, tree_root); BUG_ON(ret); kfree(dirty); mutex_unlock(&tree_root->fs_info->fs_mutex); btrfs_btree_balance_dirty(tree_root); } - return 0; + return ret; } int btrfs_commit_transaction(struct btrfs_trans_handle *trans, @@ -321,9 +324,13 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, } finish_wait(&trans->transaction->writer_wait, &wait); WARN_ON(cur_trans != trans->transaction); - add_dirty_roots(trans, &root->fs_info->fs_roots_radix, &dirty_fs_roots); + ret = add_dirty_roots(trans, &root->fs_info->fs_roots_radix, + &dirty_fs_roots); + BUG_ON(ret); + ret = btrfs_commit_tree_roots(trans, root); BUG_ON(ret); + cur_trans = root->fs_info->running_transaction; root->fs_info->running_transaction = NULL; if (cur_trans->list.prev != &root->fs_info->trans_list) { |