RDS: make m_rdma_op a member of rds_message

This eliminates a separate memory alloc, although
it is now necessary to add an "r_active" flag, since
it is no longer to use the m_rdma_op pointer as an
indicator of if an rdma op is present.

rdma SGs allocated from rm sg pool.

rds_rm_size also gets bigger. It's a little inefficient to
run through CMSGs twice, but it makes later steps a lot smoother.

Signed-off-by: Andy Grover <andy.grover@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/rds/rds.h b/net/rds/rds.h
index 7c4adbe8c284..0bb4957e0cfc 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -316,7 +316,7 @@ struct rds_message {
         rds_rdma_cookie_t       m_rdma_cookie;
         struct {
                 struct {
-                        struct rds_rdma_op      *m_rdma_op;
+                        struct rds_rdma_op      m_rdma_op;
                         struct rds_mr           *m_rdma_mr;
                 } rdma;
                 struct {