The commit below enforces the requirement that MRs with REMOTE_WRITE
must also have LOCAL_WRITE:

commit 1c636f801615bdfc9b1d46904e8258c7a025670b
Author: Eli Cohen <[email protected]>
Date:   Thu Oct 31 15:26:32 2013 +0200

   IB/core: Encorce MR access rights rules on kernel consumers

Signed-off-by: Steve Wise <[email protected]>
---

 net/sunrpc/xprtrdma/verbs.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 9b038e1..65ce677 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1637,7 +1637,8 @@ static int
 rpcrdma_register_default_external(struct rpcrdma_mr_seg *seg,
                        int *nsegs, int writing, struct rpcrdma_ia *ia)
 {
-       int mem_priv = (writing ? IB_ACCESS_REMOTE_WRITE :
+       int mem_priv = (writing ? IB_ACCESS_REMOTE_WRITE |
+                                 IB_ACCESS_LOCAL_WRITE :
                                  IB_ACCESS_REMOTE_READ);
        struct rpcrdma_mr_seg *seg1 = seg;
        struct ib_phys_buf ipb[RPCRDMA_MAX_DATA_SEGS];

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