btrfs: open code set_extent_new

The helper is used only once.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent-io-tree.h

@@ -193,12 +193,6 @@ int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
 		       u32 bits, u32 clear_bits,
 		       struct extent_state **cached_state);
 
-static inline int set_extent_new(struct extent_io_tree *tree, u64 start,
-		u64 end)
-{
-	return set_extent_bit(tree, start, end, EXTENT_NEW, NULL, GFP_NOFS);
-}
-
 int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
 			  u64 *start_ret, u64 *end_ret, u32 bits,
 			  struct extent_state **cached_state);

fs/btrfs/extent-tree.c

@@ -4832,8 +4832,9 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 			set_extent_dirty(&root->dirty_log_pages, buf->start,
 					buf->start + buf->len - 1, GFP_NOFS);
 		else
-			set_extent_new(&root->dirty_log_pages, buf->start,
-					buf->start + buf->len - 1);
+			set_extent_bit(&root->dirty_log_pages, buf->start,
+				       buf->start + buf->len - 1,
+				       EXTENT_NEW, NULL, GFP_NOFS);
 	} else {
 		buf->log_index = -1;
 		set_extent_dirty(&trans->transaction->dirty_pages, buf->start,