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Subject: [PATCH v2 20/21] xprtrdma: Inline XDR chunk encoder functions
From:   Chuck Lever <chuck.lever@oracle.com>
To:     anna.schumaker@netapp.com
Cc:     linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org
Date:   Mon, 19 Aug 2019 18:51:03 -0400
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Micro-optimization: Save the cost of three function calls during
transport header encoding.

These were "noinline" before to generate more meaningful call stacks
during debugging, but this code is now pretty stable.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 net/sunrpc/xprtrdma/rpc_rdma.c |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index ffeb4dfebd46..67e1684aee6d 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -382,9 +382,10 @@ static struct rpcrdma_mr_seg *rpcrdma_mr_prepare(struct rpcrdma_xprt *r_xprt,
  *
  * Only a single @pos value is currently supported.
  */
-static noinline int
-rpcrdma_encode_read_list(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req,
-			 struct rpc_rqst *rqst, enum rpcrdma_chunktype rtype)
+static int rpcrdma_encode_read_list(struct rpcrdma_xprt *r_xprt,
+				    struct rpcrdma_req *req,
+				    struct rpc_rqst *rqst,
+				    enum rpcrdma_chunktype rtype)
 {
 	struct xdr_stream *xdr = &req->rl_stream;
 	struct rpcrdma_mr_seg *seg;
@@ -436,9 +437,10 @@ rpcrdma_encode_read_list(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req,
  *
  * Only a single Write chunk is currently supported.
  */
-static noinline int
-rpcrdma_encode_write_list(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req,
-			  struct rpc_rqst *rqst, enum rpcrdma_chunktype wtype)
+static int rpcrdma_encode_write_list(struct rpcrdma_xprt *r_xprt,
+				     struct rpcrdma_req *req,
+				     struct rpc_rqst *rqst,
+				     enum rpcrdma_chunktype wtype)
 {
 	struct xdr_stream *xdr = &req->rl_stream;
 	struct rpcrdma_mr_seg *seg;
@@ -498,9 +500,10 @@ rpcrdma_encode_write_list(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req,
  * Returns zero on success, or a negative errno if a failure occurred.
  * @xdr is advanced to the next position in the stream.
  */
-static noinline int
-rpcrdma_encode_reply_chunk(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req,
-			   struct rpc_rqst *rqst, enum rpcrdma_chunktype wtype)
+static int rpcrdma_encode_reply_chunk(struct rpcrdma_xprt *r_xprt,
+				      struct rpcrdma_req *req,
+				      struct rpc_rqst *rqst,
+				      enum rpcrdma_chunktype wtype)
 {
 	struct xdr_stream *xdr = &req->rl_stream;
 	struct rpcrdma_mr_seg *seg;