diff options
| -rw-r--r-- | fs/btrfs/delayed-ref.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index bf2ce51e5086..b58a7e30d37c 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -186,6 +186,17 @@ int btrfs_delayed_refs_rsv_refill(struct btrfs_fs_info *fs_info, u64 num_bytes = 0; int ret = -ENOSPC; + /* + * We have to check the mount option here because we could be enabling + * the free space tree for the first time and don't have the compat_ro + * option set yet. + * + * We need extra reservations if we have the free space tree because + * we'll have to modify that tree as well. + */ + if (btrfs_test_opt(fs_info, FREE_SPACE_TREE)) + limit *= 2; + spin_lock(&block_rsv->lock); if (block_rsv->reserved < block_rsv->size) { num_bytes = block_rsv->size - block_rsv->reserved; |