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SUNRPC: Use struct xdr_stream when constructing RPC Call header

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Modernize and harden the code path that constructs each RPC Call
message.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2019-02-11 11:24:48 -05:00 • committed by Anna Schumaker
commit e8680a24a2
8 changed files with 266 additions and 181 deletions
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29
include/trace/events/sunrpc.h
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@ -213,6 +213,35 @@ DECLARE_EVENT_CLASS(rpc_task_queued,
DEFINE_RPC_QUEUED_EVENT(sleep);
DEFINE_RPC_QUEUED_EVENT(wakeup);
DECLARE_EVENT_CLASS(rpc_failure,
TP_PROTO(const struct rpc_task *task),
TP_ARGS(task),
TP_STRUCT__entry(
__field(unsigned int, task_id)
__field(unsigned int, client_id)
),
TP_fast_assign(
__entry->task_id = task->tk_pid;
__entry->client_id = task->tk_client->cl_clid;
),
TP_printk("task:%u@%u",
__entry->task_id, __entry->client_id)
);
#define DEFINE_RPC_FAILURE(name) \
DEFINE_EVENT(rpc_failure, rpc_bad_##name, \
TP_PROTO( \
const struct rpc_task *task \
), \
TP_ARGS(task))
DEFINE_RPC_FAILURE(callhdr);
TRACE_EVENT(rpc_stats_latency,
TP_PROTO(