diff options
| -rw-r--r-- | fs/btrfs/props.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c index ca2716917e37..a9e2e66152ee 100644 --- a/fs/btrfs/props.c +++ b/fs/btrfs/props.c @@ -332,6 +332,7 @@ static int inherit_props(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info = root->fs_info; int ret; int i; + bool need_reserve = false; if (!test_bit(BTRFS_INODE_HAS_PROPS, &BTRFS_I(parent)->runtime_flags)) @@ -357,11 +358,20 @@ static int inherit_props(struct btrfs_trans_handle *trans, if (ret) continue; - num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); - ret = btrfs_block_rsv_add(root, trans->block_rsv, - num_bytes, BTRFS_RESERVE_NO_FLUSH); - if (ret) - return ret; + /* + * Currently callers should be reserving 1 item for properties, + * since we only have 1 property that we currently support. If + * we add more in the future we need to try and reserve more + * space for them. But we should also revisit how we do space + * reservations if we do add more properties in the future. + */ + if (need_reserve) { + num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + ret = btrfs_block_rsv_add(root, trans->block_rsv, + num_bytes, BTRFS_RESERVE_NO_FLUSH); + if (ret) + return ret; + } ret = btrfs_setxattr(trans, inode, h->xattr_name, value, strlen(value), 0); @@ -375,9 +385,13 @@ static int inherit_props(struct btrfs_trans_handle *trans, &BTRFS_I(inode)->runtime_flags); } - btrfs_block_rsv_release(fs_info, trans->block_rsv, num_bytes); - if (ret) - return ret; + if (need_reserve) { + btrfs_block_rsv_release(fs_info, trans->block_rsv, + num_bytes); + if (ret) + return ret; + } + need_reserve = true; } return 0; |