RDS: fix congestion map corruption for PAGE_SIZE > 4k

[cascardo/linux.git] / net / rds / ib_recv.c

diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 977fb86..abc8cc8 100644 (file)
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -796,7 +796,7 @@ static void rds_ib_cong_recv(struct rds_connection *conn,
 
                addr = kmap_atomic(sg_page(&frag->f_sg));
 
-               src = addr + frag_off;
+               src = addr + frag->f_sg.offset + frag_off;
                dst = (void *)map->m_page_addrs[map_page] + map_off;
                for (k = 0; k < to_copy; k += 8) {
                        /* Record ports that became uncongested, ie