target: Don't allocate pages for NULLIO devices (670caa9f) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/target/target_core_rd.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -139,6 +139,11 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
		rd_dev->rd_page_count);
		return -EINVAL;
		}

		/* Don't need backing pages for NULLIO */
		if (rd_dev->rd_flags & RDF_NULLIO)
		return 0;

		total_sg_needed = rd_dev->rd_page_count;

		sg_tables = (total_sg_needed / max_sg_per_table) + 1;