Btrfs: Don't wait on tree block writeback before freeing them anymore

This isn't required anymore because we don't reallocate blocks that
have already been written in this transaction.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 618e526c9046..1c3d9d6fbdad 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -751,7 +751,6 @@ static int balance_level(struct btrfs_trans_handle *trans,
                 add_root_to_dirty_list(root);
                 path->nodes[level] = NULL;
                 clean_tree_block(trans, root, mid);
-                wait_on_tree_block_writeback(root, mid);
                 /* once for the path */
                 free_extent_buffer(mid);
                 ret = btrfs_free_extent(trans, root, mid->start, mid->len,
@@ -810,7 +809,6 @@ static int balance_level(struct btrfs_trans_handle *trans,
                         u32 blocksize = right->len;
 
                         clean_tree_block(trans, root, right);
-                        wait_on_tree_block_writeback(root, right);
                         free_extent_buffer(right);
                         right = NULL;
                         wret = del_ptr(trans, root, path, level + 1, pslot +
@@ -854,7 +852,6 @@ static int balance_level(struct btrfs_trans_handle *trans,
                 u64 bytenr = mid->start;
                 u32 blocksize = mid->len;
                 clean_tree_block(trans, root, mid);
-                wait_on_tree_block_writeback(root, mid);
                 free_extent_buffer(mid);
                 mid = NULL;
                 wret = del_ptr(trans, root, path, level + 1, pslot);
@@ -2638,7 +2635,6 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                 } else {
                         u64 root_gen = btrfs_header_generation(path->nodes[1]);
                         clean_tree_block(trans, root, leaf);
-                        wait_on_tree_block_writeback(root, leaf);
                         wret = del_ptr(trans, root, path, 1, path->slots[1]);
                         if (wret)
                                 ret = wret;
@@ -2690,7 +2686,6 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                                                            path->nodes[1]);
 
                                 clean_tree_block(trans, root, leaf);
-                                wait_on_tree_block_writeback(root, leaf);
 
                                 wret = del_ptr(trans, root, path, 1, slot);
                                 if (wret)