SUNRPC: Replace jiffies-based metrics with ktime-based metrics

[safe/jmp/linux-2.6] / net / sunrpc / xprt.c

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 698c627..8986b1b 100644 (file)
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -43,6 +43,7 @@
 #include <linux/interrupt.h>
 #include <linux/workqueue.h>
 #include <linux/net.h>
+#include <linux/ktime.h>
 
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/metrics.h>
@@ -779,10 +780,11 @@ static void xprt_update_rtt(struct rpc_task *task)
        struct rpc_rqst *req = task->tk_rqstp;
        struct rpc_rtt *rtt = task->tk_client->cl_rtt;
        unsigned timer = task->tk_msg.rpc_proc->p_timer;
+       long m = usecs_to_jiffies(ktime_to_us(task->tk_rtt));
 
        if (timer) {
                if (req->rq_ntrans == 1)
-                       rpc_update_rtt(rtt, timer, task->tk_rtt);
+                       rpc_update_rtt(rtt, timer, m);
                rpc_set_timeo(rtt, timer, req->rq_ntrans - 1);
        }
 }
@@ -803,7 +805,7 @@ void xprt_complete_rqst(struct rpc_task *task, int copied)
                        task->tk_pid, ntohl(req->rq_xid), copied);
 
        xprt->stat.recvs++;
-       task->tk_rtt = (long)jiffies - req->rq_xtime;
+       task->tk_rtt = ktime_sub(ktime_get(), req->rq_xtime);
        if (xprt->ops->timer != NULL)
                xprt_update_rtt(task);
 
@@ -904,7 +906,7 @@ void xprt_transmit(struct rpc_task *task)
                return;
 
        req->rq_connect_cookie = xprt->connect_cookie;
-       req->rq_xtime = jiffies;
+       req->rq_xtime = ktime_get();
        status = xprt->ops->send_request(task);
        if (status != 0) {
                task->tk_status = status;