+errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap gen_bitmap,
+ __u32 start, __u32 end,
+ __u32 *out)
+{
+ ext2fs_generic_bitmap_32 bitmap = (ext2fs_generic_bitmap_32) gen_bitmap;
+ blk_t b;
+
+ if (start < bitmap->start || end > bitmap->end || start > end) {
+ ext2fs_warn_bitmap2(gen_bitmap, EXT2FS_TEST_ERROR, start);
+ return EINVAL;
+ }
+
+ while (start <= end) {
+ b = ext2fs_test_bit(start - bitmap->start, bitmap->bitmap);
+ if (!b) {
+ *out = start;
+ return 0;
+ }
+ start++;
+ }
+
+ return ENOENT;
+}
+
+errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap gen_bitmap,
+ __u32 start, __u32 end,
+ __u32 *out)
+{
+ ext2fs_generic_bitmap_32 bitmap = (ext2fs_generic_bitmap_32) gen_bitmap;
+ blk_t b;
+
+ if (start < bitmap->start || end > bitmap->end || start > end) {
+ ext2fs_warn_bitmap2(gen_bitmap, EXT2FS_TEST_ERROR, start);
+ return EINVAL;
+ }
+
+ while (start <= end) {
+ b = ext2fs_test_bit(start - bitmap->start, bitmap->bitmap);
+ if (b) {
+ *out = start;
+ return 0;
+ }
+ start++;
+ }
+
+ return ENOENT;
+}
+
+int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap gen_bitmap,