rcutorture: Place event-traced strings into trace buffer

[mirror_ubuntu-jammy-kernel.git] / include / trace / events / rcu.h

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 91dc089d65b7e3abfd9d22bf4ac5e4bc593237cc..e91ae1f2290de4288aa0f70336f8596a4b68f711 100644 (file)
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -703,6 +703,7 @@ TRACE_EVENT(rcu_batch_end,
  * at the beginning and end of the read, respectively.  Note that the
  * callback address can be NULL.
  */
+#define RCUTORTURENAME_LEN 8
 TRACE_EVENT(rcu_torture_read,
 
        TP_PROTO(const char *rcutorturename, struct rcu_head *rhp,
@@ -711,7 +712,7 @@ TRACE_EVENT(rcu_torture_read,
        TP_ARGS(rcutorturename, rhp, secs, c_old, c),
 
        TP_STRUCT__entry(
-               __field(const char *, rcutorturename)
+               __field(char, rcutorturename[RCUTORTURENAME_LEN])
                __field(struct rcu_head *, rhp)
                __field(unsigned long, secs)
                __field(unsigned long, c_old)
@@ -719,7 +720,9 @@ TRACE_EVENT(rcu_torture_read,
        ),
 
        TP_fast_assign(
-               __entry->rcutorturename = rcutorturename;
+               strncpy(__entry->rcutorturename, rcutorturename,
+                       RCUTORTURENAME_LEN);
+               __entry->rcutorturename[RCUTORTURENAME_LEN - 1] = 0;
                __entry->rhp = rhp;
                __entry->secs = secs;
                __entry->c_old = c_old;