btrfs-progs: remove unused function wait_on_tree_block_writeback

This used to be a kernel stub but has been removed from kernel long time
ago.

Signed-off-by: David Sterba <dsterba@suse.com>

3 files changed, 0 insertions, 15 deletions

diff --git a/ctree.c b/ctree.c
index 551d9dc8..02c71807 100644
--- a/ctree.c
+++ b/ctree.c
@@ -701,7 +701,6 @@ 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);
 
@@ -755,7 +754,6 @@ 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 = btrfs_del_ptr(root, path, level + 1, pslot + 1);
@@ -802,7 +800,6 @@ 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 = btrfs_del_ptr(root, path, level + 1, pslot);
@@ -2710,8 +2707,6 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 			btrfs_set_header_level(leaf, 0);
 		} else {
 			clean_tree_block(trans, root, leaf);
-			wait_on_tree_block_writeback(root, leaf);
-
 			wret = btrfs_del_leaf(trans, root, path, leaf);
 			BUG_ON(ret);
 			if (wret)
@@ -2748,8 +2743,6 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 
 			if (btrfs_header_nritems(leaf) == 0) {
 				clean_tree_block(trans, root, leaf);
-				wait_on_tree_block_writeback(root, leaf);
-
 				path->slots[1] = slot;
 				ret = btrfs_del_leaf(trans, root, path, leaf);
 				BUG_ON(ret);
diff --git a/disk-io.c b/disk-io.c
index 0fcc7583..be6e28a4 100644
--- a/disk-io.c
+++ b/disk-io.c
@@ -1827,12 +1827,6 @@ int clean_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 	return clear_extent_buffer_dirty(eb);
 }
 
-int wait_on_tree_block_writeback(struct btrfs_root *root,
-				 struct extent_buffer *eb)
-{
-	return 0;
-}
-
 void btrfs_mark_buffer_dirty(struct extent_buffer *eb)
 {
 	set_extent_buffer_dirty(eb);
diff --git a/disk-io.h b/disk-io.h
index e257714b..cd4fe929 100644
--- a/disk-io.h
+++ b/disk-io.h
@@ -186,8 +186,6 @@ int btrfs_free_fs_root(struct btrfs_root *root);
 void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
 int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid);
 int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
-int wait_on_tree_block_writeback(struct btrfs_root *root,
-				 struct extent_buffer *buf);
 u32 btrfs_csum_data(char *data, u32 seed, size_t len);
 void btrfs_csum_final(u32 crc, u8 *result);