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yaml
---
r: 294434
b: refs/heads/master
c: 82b0a4c
h: refs/heads/master
v: v3
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Trond Myklebust authored and Trond Myklebust committed Feb 1, 2012
1 parent dc5e206 commit 3d0bfbf
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Showing 4 changed files with 138 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a613fa168afc19179a7547fbba45644c5b6912bf
refs/heads/master: 82b0a4c3c171b180629696e8d1d5f52516f711e6
2 changes: 1 addition & 1 deletion trunk/include/linux/sunrpc/sched.h
Original file line number Diff line number Diff line change
Expand Up @@ -271,7 +271,7 @@ static inline int rpc_task_has_priority(struct rpc_task *task, unsigned char pri
}

#ifdef RPC_DEBUG
static inline const char * rpc_qname(struct rpc_wait_queue *q)
static inline const char * rpc_qname(const struct rpc_wait_queue *q)
{
return ((q && q->name) ? q->name : "unknown");
}
Expand Down
124 changes: 124 additions & 0 deletions trunk/include/trace/events/sunrpc.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,124 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sunrpc

#if !defined(_TRACE_SUNRPC_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SUNRPC_H

#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/clnt.h>
#include <linux/tracepoint.h>

DECLARE_EVENT_CLASS(rpc_task_running,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),

TP_ARGS(clnt, task, action),

TP_STRUCT__entry(
__field(const struct rpc_clnt *, clnt)
__field(const struct rpc_task *, task)
__field(const void *, action)
__field(unsigned long, runstate)
__field(int, status)
__field(unsigned short, flags)
),

TP_fast_assign(
__entry->clnt = clnt;
__entry->task = task;
__entry->action = action;
__entry->runstate = task->tk_runstate;
__entry->status = task->tk_status;
__entry->flags = task->tk_flags;
),

TP_printk("task:%p@%p flags=%4.4x state=%4.4lx status=%d action=%pf",
__entry->task,
__entry->clnt,
__entry->flags,
__entry->runstate,
__entry->status,
__entry->action
)
);

DEFINE_EVENT(rpc_task_running, rpc_task_begin,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),

TP_ARGS(clnt, task, action)

);

DEFINE_EVENT(rpc_task_running, rpc_task_run_action,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),

TP_ARGS(clnt, task, action)

);

DEFINE_EVENT(rpc_task_running, rpc_task_complete,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),

TP_ARGS(clnt, task, action)

);

DECLARE_EVENT_CLASS(rpc_task_queued,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),

TP_ARGS(clnt, task, q),

TP_STRUCT__entry(
__field(const struct rpc_clnt *, clnt)
__field(const struct rpc_task *, task)
__field(const struct rpc_wait_queue *, queue)
__field(unsigned long, timeout)
__field(unsigned long, runstate)
__field(int, status)
__field(unsigned short, flags)
),

TP_fast_assign(
__entry->clnt = clnt;
__entry->task = task;
__entry->queue = q;
__entry->timeout = task->tk_timeout;
__entry->runstate = task->tk_runstate;
__entry->status = task->tk_status;
__entry->flags = task->tk_flags;
),

TP_printk("task:%p@%p flags=%4.4x state=%4.4lx status=%d timeout=%lu queue=%s",
__entry->task,
__entry->clnt,
__entry->flags,
__entry->runstate,
__entry->status,
__entry->timeout,
rpc_qname(__entry->queue)
)
);

DEFINE_EVENT(rpc_task_queued, rpc_task_sleep,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),

TP_ARGS(clnt, task, q)

);

DEFINE_EVENT(rpc_task_queued, rpc_task_wakeup,

TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),

TP_ARGS(clnt, task, q)

);

#endif /* _TRACE_SUNRPC_H */

#include <trace/define_trace.h>
12 changes: 12 additions & 0 deletions trunk/net/sunrpc/sched.c
Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,9 @@
#define RPCDBG_FACILITY RPCDBG_SCHED
#endif

#define CREATE_TRACE_POINTS
#include <trace/events/sunrpc.h>

/*
* RPC slabs and memory pools
*/
Expand Down Expand Up @@ -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);
}
Expand All @@ -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);
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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);

/*
Expand Down

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