The called function name is self explanatory.
Signed-off-by: David Sterba <dsterba@suse.com>
                        logical_start, csum, csum_expected, mirror_num);
 }
 
-static inline bool btrfs_page_exists_in_range(struct inode *inode,
-                                               loff_t start, loff_t end)
-{
-       return filemap_range_has_page(inode->i_mapping, start, end);
-}
-
 #endif
 
                if ((!ordered ||
                    (ordered->file_offset + ordered->len <= lockstart ||
                     ordered->file_offset > lockend)) &&
-                    !btrfs_page_exists_in_range(inode, lockstart, lockend)) {
+                    !filemap_range_has_page(inode->i_mapping,
+                                            lockstart, lockend)) {
                        if (ordered)
                                btrfs_put_ordered_extent(ordered);
                        break;
 
                 * get stale data.
                 */
                if (!ordered &&
-                   (!writing ||
-                    !btrfs_page_exists_in_range(inode, lockstart, lockend)))
+                   (!writing || !filemap_range_has_page(inode->i_mapping,
+                                                        lockstart, lockend)))
                        break;
 
                unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,