From ecd465ee88bb6648c06c82b1abae6ec28cf5fccb Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 5 Mar 2018 15:12:57 -0500 Subject: SUNRPC: Move xprt_update_rtt callsite Since commit 33849792cbcd ("xprtrdma: Detect unreachable NFS/RDMA servers more reliably"), the xprtrdma transport now has a ->timer callout. But xprtrdma does not need to compute RTT data, only UDP needs that. Move the xprt_update_rtt call into the UDP transport implementation. Signed-off-by: Chuck Lever Signed-off-by: Anna Schumaker --- net/sunrpc/xprt.c | 11 ++++++++--- net/sunrpc/xprtsock.c | 1 + 2 files changed, 9 insertions(+), 3 deletions(-) (limited to 'net/sunrpc') diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 8f0ad4f268da..13fbb4849188 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -889,7 +889,13 @@ __must_hold(&req->rq_xprt->recv_lock) } } -static void xprt_update_rtt(struct rpc_task *task) +/** + * xprt_update_rtt - Update RPC RTT statistics + * @task: RPC request that recently completed + * + * Caller holds xprt->recv_lock. + */ +void xprt_update_rtt(struct rpc_task *task) { struct rpc_rqst *req = task->tk_rqstp; struct rpc_rtt *rtt = task->tk_client->cl_rtt; @@ -902,6 +908,7 @@ static void xprt_update_rtt(struct rpc_task *task) rpc_set_timeo(rtt, timer, req->rq_ntrans - 1); } } +EXPORT_SYMBOL_GPL(xprt_update_rtt); /** * xprt_complete_rqst - called when reply processing is complete @@ -921,8 +928,6 @@ void xprt_complete_rqst(struct rpc_task *task, int copied) xprt->stat.recvs++; req->rq_rtt = ktime_sub(ktime_get(), req->rq_xtime); - if (xprt->ops->timer != NULL) - xprt_update_rtt(task); list_del_init(&req->rq_list); req->rq_private_buf.len = copied; diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index a6b8c1f8f92a..61df77f41304 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1060,6 +1060,7 @@ static void xs_udp_data_read_skb(struct rpc_xprt *xprt, if (!rovr) goto out_unlock; xprt_pin_rqst(rovr); + xprt_update_rtt(rovr->rq_task); spin_unlock(&xprt->recv_lock); task = rovr->rq_task; -- cgit v1.2.3-59-g8ed1b