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SUNRPC: Add trace events to the sunrpc subsystem

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Add declarations to allow tracing of RPC call creation, running, sleeping,
and destruction.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2012-01-20 14:52:23 -05:00
parent a613fa168a
commit 82b0a4c3c1
3 changed files with 137 additions and 1 deletions
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12
net/sunrpc/sched.c
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@@ -28,6 +28,9 @@
#define RPCDBG_FACILITY RPCDBG_SCHED
#endif
#define CREATE_TRACE_POINTS
#include <trace/events/sunrpc.h>
/*
* RPC slabs and memory pools
*/
@@ -251,6 +254,8 @@ static inline void rpc_task_set_debuginfo(struct rpc_task *task)
static void rpc_set_active(struct rpc_task *task)
{
trace_rpc_task_begin(task->tk_client, task, NULL);
rpc_task_set_debuginfo(task);
set_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
}
@@ -267,6 +272,8 @@ static int rpc_complete_task(struct rpc_task *task)
unsigned long flags;
int ret;
trace_rpc_task_complete(task->tk_client, task, NULL);
spin_lock_irqsave(&wq->lock, flags);
clear_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
ret = atomic_dec_and_test(&task->tk_count);
@@ -324,6 +331,8 @@ static void __rpc_sleep_on_priority(struct rpc_wait_queue *q,
dprintk("RPC: %5u sleep_on(queue \"%s\" time %lu)\n",
task->tk_pid, rpc_qname(q), jiffies);
trace_rpc_task_sleep(task->tk_client, task, q);
__rpc_add_wait_queue(q, task, queue_priority);
BUG_ON(task->tk_callback != NULL);
@@ -378,6 +387,8 @@ static void __rpc_do_wake_up_task(struct rpc_wait_queue *queue, struct rpc_task
return;
}
trace_rpc_task_wakeup(task->tk_client, task, queue);
__rpc_remove_wait_queue(queue, task);
rpc_make_runnable(task);
@@ -701,6 +712,7 @@ static void __rpc_execute(struct rpc_task *task)
if (do_action == NULL)
break;
}
trace_rpc_task_run_action(task->tk_client, task, task->tk_action);
do_action(task);
/*