Commit 670caa9f authored by Andy Grover's avatar Andy Grover Committed by Nicholas Bellinger
Browse files

target: Don't allocate pages for NULLIO devices 



Signed-off-by: default avatarAndy Grover <agrover@redhat.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent db5d1c3c

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;