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authorChuck Lever <chuck.lever@oracle.com>2020-07-08 16:10:45 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-09-21 10:21:09 -0400
commit1466c2216382fc392817fc8888e4ebefb2ef4816 (patch)
treea10aa619fd9c6e989a38e4ccbf4dc7d5ee84b3af
parentc3adcc7dfbfcb1bd7e29fa95f03d1f96b514e03e (diff)
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SUNRPC: Clean up RPC scheduler tracepoints
Remove several redundant dprintk call sites, and replace a couple of potentially useful ones with tracepoints. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
-rw-r--r--include/trace/events/sunrpc.h2
-rw-r--r--net/sunrpc/sched.c15
2 files changed, 5 insertions, 12 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index b5d4cbbaf4b0..11e5e52f4ce5 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -387,6 +387,8 @@ DECLARE_EVENT_CLASS(rpc_task_running,
DEFINE_RPC_RUNNING_EVENT(begin);
DEFINE_RPC_RUNNING_EVENT(run_action);
+DEFINE_RPC_RUNNING_EVENT(sync_sleep);
+DEFINE_RPC_RUNNING_EVENT(sync_wake);
DEFINE_RPC_RUNNING_EVENT(complete);
DEFINE_RPC_RUNNING_EVENT(signalled);
DEFINE_RPC_RUNNING_EVENT(end);
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 402b1c8869fd..a0d5a98fbf32 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -885,9 +885,6 @@ static void __rpc_execute(struct rpc_task *task)
int task_is_async = RPC_IS_ASYNC(task);
int status = 0;
- dprintk("RPC: %5u __rpc_execute flags=0x%x\n",
- task->tk_pid, task->tk_flags);
-
WARN_ON_ONCE(RPC_IS_QUEUED(task));
if (RPC_IS_QUEUED(task))
return;
@@ -947,7 +944,7 @@ static void __rpc_execute(struct rpc_task *task)
return;
/* sync task: sleep here */
- dprintk("RPC: %5u sync task going to sleep\n", task->tk_pid);
+ trace_rpc_task_sync_sleep(task, task->tk_action);
status = out_of_line_wait_on_bit(&task->tk_runstate,
RPC_TASK_QUEUED, rpc_wait_bit_killable,
TASK_KILLABLE);
@@ -963,11 +960,9 @@ static void __rpc_execute(struct rpc_task *task)
task->tk_rpc_status = -ERESTARTSYS;
rpc_exit(task, -ERESTARTSYS);
}
- dprintk("RPC: %5u sync task resuming\n", task->tk_pid);
+ trace_rpc_task_sync_wake(task, task->tk_action);
}
- dprintk("RPC: %5u return %d, status %d\n", task->tk_pid, status,
- task->tk_status);
/* Release all resources associated with the task */
rpc_release_task(task);
}
@@ -1146,10 +1141,8 @@ static void rpc_free_task(struct rpc_task *task)
put_rpccred(task->tk_op_cred);
rpc_release_calldata(task->tk_ops, task->tk_calldata);
- if (tk_flags & RPC_TASK_DYNAMIC) {
- dprintk("RPC: %5u freeing task\n", task->tk_pid);
+ if (tk_flags & RPC_TASK_DYNAMIC)
mempool_free(task, rpc_task_mempool);
- }
}
static void rpc_async_release(struct work_struct *work)
@@ -1203,8 +1196,6 @@ EXPORT_SYMBOL_GPL(rpc_put_task_async);
static void rpc_release_task(struct rpc_task *task)
{
- dprintk("RPC: %5u release task\n", task->tk_pid);
-
WARN_ON_ONCE(RPC_IS_QUEUED(task));
rpc_release_resources_task(task);