+#ifdef CONFIG_CMA_DEBUG
+static void cma_debug_show_areas(struct cma *cma)
+{
+ unsigned long next_zero_bit, next_set_bit;
+ unsigned long start = 0;
+ unsigned int nr_zero, nr_total = 0;
+
+ mutex_lock(&cma->lock);
+ pr_info("number of available pages: ");
+ for (;;) {
+ next_zero_bit = find_next_zero_bit(cma->bitmap, cma->count, start);
+ if (next_zero_bit >= cma->count)
+ break;
+ next_set_bit = find_next_bit(cma->bitmap, cma->count, next_zero_bit);
+ nr_zero = next_set_bit - next_zero_bit;
+ pr_cont("%s%u@%lu", nr_total ? "+" : "", nr_zero, next_zero_bit);
+ nr_total += nr_zero;
+ start = next_zero_bit + nr_zero;
+ }
+ pr_cont("=> %u free of %lu total pages\n", nr_total, cma->count);
+ mutex_unlock(&cma->lock);
+}
+#else
+static inline void cma_debug_show_areas(struct cma *cma) { }
+#endif
+