rcu: Add const annotation to char * for RCU tracepoints and functions

[~andy/linux] / include / trace / events / rcu.h

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 59ebcc89f148ba85789581cda7f233ab2374ed92..ee2376cfaab3a668d01374844c6757d07e7e1be8 100644 (file)
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -19,12 +19,12 @@
  */
 TRACE_EVENT(rcu_utilization,
 
-       TP_PROTO(char *s),
+       TP_PROTO(const char *s),
 
        TP_ARGS(s),
 
        TP_STRUCT__entry(
-               __field(char *, s)
+               __field(const char *, s)
        ),
 
        TP_fast_assign(
@@ -51,14 +51,14 @@ TRACE_EVENT(rcu_utilization,
  */
 TRACE_EVENT(rcu_grace_period,
 
-       TP_PROTO(char *rcuname, unsigned long gpnum, char *gpevent),
+       TP_PROTO(const char *rcuname, unsigned long gpnum, const char *gpevent),
 
        TP_ARGS(rcuname, gpnum, gpevent),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
-               __field(char *, gpevent)
+               __field(const char *, gpevent)
        ),
 
        TP_fast_assign(
@@ -89,21 +89,21 @@ TRACE_EVENT(rcu_grace_period,
  */
 TRACE_EVENT(rcu_future_grace_period,
 
-       TP_PROTO(char *rcuname, unsigned long gpnum, unsigned long completed,
+       TP_PROTO(const char *rcuname, unsigned long gpnum, unsigned long completed,
                 unsigned long c, u8 level, int grplo, int grphi,
-                char *gpevent),
+                const char *gpevent),
 
        TP_ARGS(rcuname, gpnum, completed, c, level, grplo, grphi, gpevent),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
                __field(unsigned long, completed)
                __field(unsigned long, c)
                __field(u8, level)
                __field(int, grplo)
                __field(int, grphi)
-               __field(char *, gpevent)
+               __field(const char *, gpevent)
        ),
 
        TP_fast_assign(
@@ -132,13 +132,13 @@ TRACE_EVENT(rcu_future_grace_period,
  */
 TRACE_EVENT(rcu_grace_period_init,
 
-       TP_PROTO(char *rcuname, unsigned long gpnum, u8 level,
+       TP_PROTO(const char *rcuname, unsigned long gpnum, u8 level,
                 int grplo, int grphi, unsigned long qsmask),
 
        TP_ARGS(rcuname, gpnum, level, grplo, grphi, qsmask),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
                __field(u8, level)
                __field(int, grplo)
@@ -168,12 +168,12 @@ TRACE_EVENT(rcu_grace_period_init,
  */
 TRACE_EVENT(rcu_preempt_task,
 
-       TP_PROTO(char *rcuname, int pid, unsigned long gpnum),
+       TP_PROTO(const char *rcuname, int pid, unsigned long gpnum),
 
        TP_ARGS(rcuname, pid, gpnum),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
                __field(int, pid)
        ),
@@ -195,12 +195,12 @@ TRACE_EVENT(rcu_preempt_task,
  */
 TRACE_EVENT(rcu_unlock_preempted_task,
 
-       TP_PROTO(char *rcuname, unsigned long gpnum, int pid),
+       TP_PROTO(const char *rcuname, unsigned long gpnum, int pid),
 
        TP_ARGS(rcuname, gpnum, pid),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
                __field(int, pid)
        ),
@@ -224,14 +224,14 @@ TRACE_EVENT(rcu_unlock_preempted_task,
  */
 TRACE_EVENT(rcu_quiescent_state_report,
 
-       TP_PROTO(char *rcuname, unsigned long gpnum,
+       TP_PROTO(const char *rcuname, unsigned long gpnum,
                 unsigned long mask, unsigned long qsmask,
                 u8 level, int grplo, int grphi, int gp_tasks),
 
        TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
                __field(unsigned long, mask)
                __field(unsigned long, qsmask)
@@ -268,15 +268,15 @@ TRACE_EVENT(rcu_quiescent_state_report,
  */
 TRACE_EVENT(rcu_fqs,
 
-       TP_PROTO(char *rcuname, unsigned long gpnum, int cpu, char *qsevent),
+       TP_PROTO(const char *rcuname, unsigned long gpnum, int cpu, const char *qsevent),
 
        TP_ARGS(rcuname, gpnum, cpu, qsevent),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(unsigned long, gpnum)
                __field(int, cpu)
-               __field(char *, qsevent)
+               __field(const char *, qsevent)
        ),
 
        TP_fast_assign(
@@ -308,12 +308,12 @@ TRACE_EVENT(rcu_fqs,
  */
 TRACE_EVENT(rcu_dyntick,
 
-       TP_PROTO(char *polarity, long long oldnesting, long long newnesting),
+       TP_PROTO(const char *polarity, long long oldnesting, long long newnesting),
 
        TP_ARGS(polarity, oldnesting, newnesting),
 
        TP_STRUCT__entry(
-               __field(char *, polarity)
+               __field(const char *, polarity)
                __field(long long, oldnesting)
                __field(long long, newnesting)
        ),
@@ -352,12 +352,12 @@ TRACE_EVENT(rcu_dyntick,
  */
 TRACE_EVENT(rcu_prep_idle,
 
-       TP_PROTO(char *reason),
+       TP_PROTO(const char *reason),
 
        TP_ARGS(reason),
 
        TP_STRUCT__entry(
-               __field(char *, reason)
+               __field(const char *, reason)
        ),
 
        TP_fast_assign(
@@ -376,13 +376,13 @@ TRACE_EVENT(rcu_prep_idle,
  */
 TRACE_EVENT(rcu_callback,
 
-       TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy,
+       TP_PROTO(const char *rcuname, struct rcu_head *rhp, long qlen_lazy,
                 long qlen),
 
        TP_ARGS(rcuname, rhp, qlen_lazy, qlen),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(void *, rhp)
                __field(void *, func)
                __field(long, qlen_lazy)
@@ -412,13 +412,13 @@ TRACE_EVENT(rcu_callback,
  */
 TRACE_EVENT(rcu_kfree_callback,
 
-       TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset,
+       TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset,
                 long qlen_lazy, long qlen),
 
        TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(void *, rhp)
                __field(unsigned long, offset)
                __field(long, qlen_lazy)
@@ -447,12 +447,12 @@ TRACE_EVENT(rcu_kfree_callback,
  */
 TRACE_EVENT(rcu_batch_start,
 
-       TP_PROTO(char *rcuname, long qlen_lazy, long qlen, long blimit),
+       TP_PROTO(const char *rcuname, long qlen_lazy, long qlen, long blimit),
 
        TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(long, qlen_lazy)
                __field(long, qlen)
                __field(long, blimit)
@@ -477,12 +477,12 @@ TRACE_EVENT(rcu_batch_start,
  */
 TRACE_EVENT(rcu_invoke_callback,
 
-       TP_PROTO(char *rcuname, struct rcu_head *rhp),
+       TP_PROTO(const char *rcuname, struct rcu_head *rhp),
 
        TP_ARGS(rcuname, rhp),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(void *, rhp)
                __field(void *, func)
        ),
@@ -506,12 +506,12 @@ TRACE_EVENT(rcu_invoke_callback,
  */
 TRACE_EVENT(rcu_invoke_kfree_callback,
 
-       TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset),
+       TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset),
 
        TP_ARGS(rcuname, rhp, offset),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(void *, rhp)
                __field(unsigned long, offset)
        ),
@@ -539,13 +539,13 @@ TRACE_EVENT(rcu_invoke_kfree_callback,
  */
 TRACE_EVENT(rcu_batch_end,
 
-       TP_PROTO(char *rcuname, int callbacks_invoked,
+       TP_PROTO(const char *rcuname, int callbacks_invoked,
                 bool cb, bool nr, bool iit, bool risk),
 
        TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
+               __field(const char *, rcuname)
                __field(int, callbacks_invoked)
                __field(bool, cb)
                __field(bool, nr)
@@ -577,13 +577,13 @@ TRACE_EVENT(rcu_batch_end,
  */
 TRACE_EVENT(rcu_torture_read,
 
-       TP_PROTO(char *rcutorturename, struct rcu_head *rhp,
+       TP_PROTO(const char *rcutorturename, struct rcu_head *rhp,
                 unsigned long secs, unsigned long c_old, unsigned long c),
 
        TP_ARGS(rcutorturename, rhp, secs, c_old, c),
 
        TP_STRUCT__entry(
-               __field(char *, rcutorturename)
+               __field(const char *, rcutorturename)
                __field(struct rcu_head *, rhp)
                __field(unsigned long, secs)
                __field(unsigned long, c_old)
@@ -623,13 +623,13 @@ TRACE_EVENT(rcu_torture_read,
  */
 TRACE_EVENT(rcu_barrier,
 
-       TP_PROTO(char *rcuname, char *s, int cpu, int cnt, unsigned long done),
+       TP_PROTO(const char *rcuname, const char *s, int cpu, int cnt, unsigned long done),
 
        TP_ARGS(rcuname, s, cpu, cnt, done),
 
        TP_STRUCT__entry(
-               __field(char *, rcuname)
-               __field(char *, s)
+               __field(const char *, rcuname)
+               __field(const char *, s)
                __field(int, cpu)
                __field(int, cnt)
                __field(unsigned long, done)