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SUNRPC: rpc_xprt lifetime events should record xprt->state 

Help troubleshoot the logic that uses these flags.

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 2020-05-18 10:13:02 -04:00 committed by Anna Schumaker
parent 5bffb00621
commit 94afd9c489
1 changed files with 29 additions and 1 deletions
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30
include/trace/events/sunrpc.h
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@ -835,6 +835,30 @@ DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_close);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown);
TRACE_DEFINE_ENUM(XPRT_LOCKED);
TRACE_DEFINE_ENUM(XPRT_CONNECTED);
TRACE_DEFINE_ENUM(XPRT_CONNECTING);
TRACE_DEFINE_ENUM(XPRT_CLOSE_WAIT);
TRACE_DEFINE_ENUM(XPRT_BOUND);
TRACE_DEFINE_ENUM(XPRT_BINDING);
TRACE_DEFINE_ENUM(XPRT_CLOSING);
TRACE_DEFINE_ENUM(XPRT_CONGESTED);
TRACE_DEFINE_ENUM(XPRT_CWND_WAIT);
TRACE_DEFINE_ENUM(XPRT_WRITE_SPACE);
#define rpc_show_xprt_state(x) \
__print_flags(x, "|", \
{ (1UL << XPRT_LOCKED), "LOCKED"}, \
{ (1UL << XPRT_CONNECTED), "CONNECTED"}, \
{ (1UL << XPRT_CONNECTING), "CONNECTING"}, \
{ (1UL << XPRT_CLOSE_WAIT), "CLOSE_WAIT"}, \
{ (1UL << XPRT_BOUND), "BOUND"}, \
{ (1UL << XPRT_BINDING), "BINDING"}, \
{ (1UL << XPRT_CLOSING), "CLOSING"}, \
{ (1UL << XPRT_CONGESTED), "CONGESTED"}, \
{ (1UL << XPRT_CWND_WAIT), "CWND_WAIT"}, \
{ (1UL << XPRT_WRITE_SPACE), "WRITE_SPACE"})
DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
TP_PROTO(
const struct rpc_xprt *xprt
@ -843,16 +867,20 @@ DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
TP_ARGS(xprt),
TP_STRUCT__entry(
__field(unsigned long, state)
__string(addr, xprt->address_strings[RPC_DISPLAY_ADDR])
__string(port, xprt->address_strings[RPC_DISPLAY_PORT])
),
TP_fast_assign(
__entry->state = xprt->state;
__assign_str(addr, xprt->address_strings[RPC_DISPLAY_ADDR]);
__assign_str(port, xprt->address_strings[RPC_DISPLAY_PORT]);
),
TP_printk("peer=[%s]:%s", __get_str(addr), __get_str(port))
TP_printk("peer=[%s]:%s state=%s",
__get_str(addr), __get_str(port),
rpc_show_xprt_state(__entry->state))
);
#define DEFINE_RPC_XPRT_LIFETIME_EVENT(name) \