rpcrdma: Fix SQ size calculation when memreg is FRMR

[cascardo/linux.git] / net / sunrpc / xprtrdma / rpc_rdma.c

diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index e5e28d1..2ac3f6e 100644 (file)
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -249,6 +249,8 @@ rpcrdma_create_chunks(struct rpc_rqst *rqst, struct xdr_buf *target,
        req->rl_nchunks = nchunks;
 
        BUG_ON(nchunks == 0);
+       BUG_ON((r_xprt->rx_ia.ri_memreg_strategy == RPCRDMA_FRMR)
+              && (nchunks > 3));
 
        /*
         * finish off header. If write, marshal discrim and nchunks.