diff options
author | Chuck Lever <cel@netapp.com> | 2006-03-20 18:44:16 (GMT) |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-20 18:44:16 (GMT) |
commit | 262ca07de4d7f1bff20361c1353bb14b3607afb2 (patch) | |
tree | e448a66b4549bbd660f76e81da0067d762a4732e /net/sunrpc/xprt.c | |
parent | e19b63dafdf7d615b0d36b90990a07e7792b9d3a (diff) | |
download | linux-262ca07de4d7f1bff20361c1353bb14b3607afb2.tar.xz |
SUNRPC: add a handful of per-xprt counters
Monitor generic transport events. Add a transport switch callout to
format transport counters for export to user-land.
Test plan:
Compile kernel with CONFIG_NFS enabled.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/xprt.c')
-rw-r--r-- | net/sunrpc/xprt.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 8ff2c8a..93a0a3c 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -548,6 +548,7 @@ void xprt_connect(struct rpc_task *task) task->tk_timeout = xprt->connect_timeout; rpc_sleep_on(&xprt->pending, task, xprt_connect_status, NULL); + xprt->stat.connect_start = jiffies; xprt->ops->connect(task); } return; @@ -558,6 +559,8 @@ static void xprt_connect_status(struct rpc_task *task) struct rpc_xprt *xprt = task->tk_xprt; if (task->tk_status >= 0) { + xprt->stat.connect_count++; + xprt->stat.connect_time += (long)jiffies - xprt->stat.connect_start; dprintk("RPC: %4d xprt_connect_status: connection established\n", task->tk_pid); return; @@ -601,16 +604,14 @@ static void xprt_connect_status(struct rpc_task *task) struct rpc_rqst *xprt_lookup_rqst(struct rpc_xprt *xprt, u32 xid) { struct list_head *pos; - struct rpc_rqst *req = NULL; list_for_each(pos, &xprt->recv) { struct rpc_rqst *entry = list_entry(pos, struct rpc_rqst, rq_list); - if (entry->rq_xid == xid) { - req = entry; - break; - } + if (entry->rq_xid == xid) + return entry; } - return req; + xprt->stat.bad_xids++; + return NULL; } /** @@ -646,6 +647,7 @@ void xprt_complete_rqst(struct rpc_task *task, int copied) dprintk("RPC: %5u xid %08x complete (%d bytes received)\n", task->tk_pid, ntohl(req->rq_xid), copied); + task->tk_xprt->stat.recvs++; list_del_init(&req->rq_list); req->rq_received = req->rq_private_buf.len = copied; rpc_wake_up_task(task); @@ -744,12 +746,19 @@ void xprt_transmit(struct rpc_task *task) if (status == 0) { dprintk("RPC: %4d xmit complete\n", task->tk_pid); spin_lock_bh(&xprt->transport_lock); + xprt->ops->set_retrans_timeout(task); + + xprt->stat.sends++; + xprt->stat.req_u += xprt->stat.sends - xprt->stat.recvs; + xprt->stat.bklog_u += xprt->backlog.qlen; + /* Don't race with disconnect */ if (!xprt_connected(xprt)) task->tk_status = -ENOTCONN; else if (!req->rq_received) rpc_sleep_on(&xprt->pending, task, NULL, xprt_timer); + xprt->ops->release_xprt(xprt, task); spin_unlock_bh(&xprt->transport_lock); return; |