4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Trond Myklebust <[email protected]> commit e9d4bf219c83d09579bc62512fea2ca10f025d93 upstream. There is no guarantee that either the request or the svc_xprt exist by the time we get round to printing the trace message. Signed-off-by: Trond Myklebust <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- include/trace/events/sunrpc.h | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -455,20 +455,22 @@ TRACE_EVENT(svc_recv, TP_ARGS(rqst, status), TP_STRUCT__entry( - __field(struct sockaddr *, addr) __field(__be32, xid) __field(int, status) __field(unsigned long, flags) + __dynamic_array(unsigned char, addr, rqst->rq_addrlen) ), TP_fast_assign( - __entry->addr = (struct sockaddr *)&rqst->rq_addr; __entry->xid = status > 0 ? rqst->rq_xid : 0; __entry->status = status; __entry->flags = rqst->rq_flags; + memcpy(__get_dynamic_array(addr), + &rqst->rq_addr, rqst->rq_addrlen); ), - TP_printk("addr=%pIScp xid=0x%x status=%d flags=%s", __entry->addr, + TP_printk("addr=%pIScp xid=0x%x status=%d flags=%s", + (struct sockaddr *)__get_dynamic_array(addr), be32_to_cpu(__entry->xid), __entry->status, show_rqstp_flags(__entry->flags)) ); @@ -480,22 +482,23 @@ DECLARE_EVENT_CLASS(svc_rqst_status, TP_ARGS(rqst, status), TP_STRUCT__entry( - __field(struct sockaddr *, addr) __field(__be32, xid) - __field(int, dropme) __field(int, status) __field(unsigned long, flags) + __dynamic_array(unsigned char, addr, rqst->rq_addrlen) ), TP_fast_assign( - __entry->addr = (struct sockaddr *)&rqst->rq_addr; __entry->xid = rqst->rq_xid; __entry->status = status; __entry->flags = rqst->rq_flags; + memcpy(__get_dynamic_array(addr), + &rqst->rq_addr, rqst->rq_addrlen); ), TP_printk("addr=%pIScp rq_xid=0x%x status=%d flags=%s", - __entry->addr, be32_to_cpu(__entry->xid), + (struct sockaddr *)__get_dynamic_array(addr), + be32_to_cpu(__entry->xid), __entry->status, show_rqstp_flags(__entry->flags)) );
