Odd, I see that Ming's patches made it to 4.5... Can you verify that this patches exist in your tree: e827091cb1bc block: merge: get the 1st and last bvec via helpers 25e71a99f10e block: get the 1st and last bvec via helpers e0af29171aa8 block: check virt boundary in bio_will_gap() 7bcd79ac50d9 block: bio: introduce helpers to get the 1st and last bvec -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html