diff options
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 0282033..f631df8 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1999,6 +1999,16 @@ int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, min_bytes = max(bytes, (bytes + empty_size) >> 2); spin_lock(&block_group->tree_lock); + + /* + * If we know we don't have enough space to make a cluster don't even + * bother doing all the work to try and find one. + */ + if (block_group->free_space < min_bytes) { + spin_unlock(&block_group->tree_lock); + return -ENOSPC; + } + spin_lock(&cluster->lock); /* someone already found a cluster, hooray */ |