xtensa: replace xtensa-specific _f{data,text} by _s{data,text}
[firefly-linux-kernel-4.4.55.git] / lib / radix-tree.c
index d7c878cc006cf62ac2b0b0abb1a3a69fa62c64e2..e7964296fd50551020872d430009e890d0e97b5d 100644 (file)
@@ -686,6 +686,9 @@ void **radix_tree_next_chunk(struct radix_tree_root *root,
         * during iterating; it can be zero only at the beginning.
         * And we cannot overflow iter->next_index in a single step,
         * because RADIX_TREE_MAP_SHIFT < BITS_PER_LONG.
+        *
+        * This condition also used by radix_tree_next_slot() to stop
+        * contiguous iterating, and forbid swithing to the next chunk.
         */
        index = iter->next_index;
        if (!index && iter->index)