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SUNRPC: Don't dereference xprt->snd_task if it's a cookie

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Fixes: e26d9972720e ("SUNRPC: Clean up scheduling of autoclose")
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 2022-01-13 12:20:36 -05:00 committed by Anna Schumaker
parent c0f26167dd
commit aed28b7a2d
1 changed files with 13 additions and 5 deletions
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18
include/trace/events/sunrpc.h
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@ -965,7 +965,8 @@ TRACE_EVENT(rpc_socket_nospace,
{ BIT(XPRT_REMOVE), "REMOVE" }, \
{ BIT(XPRT_CONGESTED), "CONGESTED" }, \
{ BIT(XPRT_CWND_WAIT), "CWND_WAIT" }, \
{ BIT(XPRT_WRITE_SPACE), "WRITE_SPACE" })
{ BIT(XPRT_WRITE_SPACE), "WRITE_SPACE" }, \
{ BIT(XPRT_SND_IS_COOKIE), "SND_IS_COOKIE" })
DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
TP_PROTO(
@ -1162,8 +1163,11 @@ DECLARE_EVENT_CLASS(xprt_writelock_event,
__entry->task_id = -1;
__entry->client_id = -1;
}
__entry->snd_task_id = xprt->snd_task ?
xprt->snd_task->tk_pid : -1;
if (xprt->snd_task &&
!test_bit(XPRT_SND_IS_COOKIE, &xprt->state))
__entry->snd_task_id = xprt->snd_task->tk_pid;
else
__entry->snd_task_id = -1;
),
TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
@ -1208,8 +1212,12 @@ DECLARE_EVENT_CLASS(xprt_cong_event,
__entry->task_id = -1;
__entry->client_id = -1;
}
__entry->snd_task_id = xprt->snd_task ?
xprt->snd_task->tk_pid : -1;
if (xprt->snd_task &&
!test_bit(XPRT_SND_IS_COOKIE, &xprt->state))
__entry->snd_task_id = xprt->snd_task->tk_pid;
else
__entry->snd_task_id = -1;
__entry->cong = xprt->cong;
__entry->cwnd = xprt->cwnd;
__entry->wait = test_bit(XPRT_CWND_WAIT, &xprt->state);