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-rw-r--r--include/linux/rcupdate.h4
-rw-r--r--include/trace/events/rcu.h82
-rw-r--r--kernel/rcu.h2
-rw-r--r--kernel/rcupdate.c2
-rw-r--r--kernel/rcutiny.c2
-rw-r--r--kernel/rcutiny_plugin.h2
-rw-r--r--kernel/rcutorture.c8
-rw-r--r--kernel/rcutree.c4
-rw-r--r--kernel/rcutree.h2
9 files changed, 54 insertions, 54 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 4b14bdc911d7..0c38abbe6e35 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -52,7 +52,7 @@ extern int rcutorture_runnable; /* for sysctl */
#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
extern void rcutorture_record_test_transition(void);
extern void rcutorture_record_progress(unsigned long vernum);
-extern void do_trace_rcu_torture_read(char *rcutorturename,
+extern void do_trace_rcu_torture_read(const char *rcutorturename,
struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old,
@@ -65,7 +65,7 @@ static inline void rcutorture_record_progress(unsigned long vernum)
{
}
#ifdef CONFIG_RCU_TRACE
-extern void do_trace_rcu_torture_read(char *rcutorturename,
+extern void do_trace_rcu_torture_read(const char *rcutorturename,
struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old,
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 59ebcc89f148..ee2376cfaab3 100644
--- 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)
diff --git a/kernel/rcu.h b/kernel/rcu.h
index 7f8e7590e3e5..0a90ccc65bfb 100644
--- a/kernel/rcu.h
+++ b/kernel/rcu.h
@@ -94,7 +94,7 @@ static inline void debug_rcu_head_unqueue(struct rcu_head *head)
extern void kfree(const void *);
-static inline bool __rcu_reclaim(char *rn, struct rcu_head *head)
+static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head)
{
unsigned long offset = (unsigned long)head->func;
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index cce6ba8bbace..14994d4e1a54 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -377,7 +377,7 @@ EXPORT_SYMBOL_GPL(rcuhead_debug_descr);
#endif /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_RCU_TRACE)
-void do_trace_rcu_torture_read(char *rcutorturename, struct rcu_head *rhp,
+void do_trace_rcu_torture_read(const char *rcutorturename, struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old, unsigned long c)
{
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index aa344111de3e..9ed6075dc562 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -264,7 +264,7 @@ void rcu_check_callbacks(int cpu, int user)
*/
static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
{
- char *rn = NULL;
+ const char *rn = NULL;
struct rcu_head *next, *list;
unsigned long flags;
RCU_TRACE(int cb_count = 0);
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index 0cd385acccfa..280d06cae352 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -36,7 +36,7 @@ struct rcu_ctrlblk {
RCU_TRACE(unsigned long gp_start); /* Start time for stalls. */
RCU_TRACE(unsigned long ticks_this_gp); /* Statistic for stalls. */
RCU_TRACE(unsigned long jiffies_stall); /* Jiffies at next stall. */
- RCU_TRACE(char *name); /* Name of RCU type. */
+ RCU_TRACE(const char *name); /* Name of RCU type. */
};
/* Definition for rcupdate control block. */
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index f4871e52c546..3d936f0fbcd8 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -267,7 +267,7 @@ rcutorture_shutdown_notify(struct notifier_block *unused1,
* Absorb kthreads into a kernel function that won't return, so that
* they won't ever access module text or data again.
*/
-static void rcutorture_shutdown_absorb(char *title)
+static void rcutorture_shutdown_absorb(const char *title)
{
if (ACCESS_ONCE(fullstop) == FULLSTOP_SHUTDOWN) {
pr_notice(
@@ -337,7 +337,7 @@ rcu_random(struct rcu_random_state *rrsp)
}
static void
-rcu_stutter_wait(char *title)
+rcu_stutter_wait(const char *title)
{
while (stutter_pause_test || !rcutorture_runnable) {
if (rcutorture_runnable)
@@ -366,7 +366,7 @@ struct rcu_torture_ops {
int (*stats)(char *page);
int irq_capable;
int can_boost;
- char *name;
+ const char *name;
};
static struct rcu_torture_ops *cur_ops;
@@ -1364,7 +1364,7 @@ rcu_torture_stutter(void *arg)
}
static inline void
-rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, char *tag)
+rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag)
{
pr_alert("%s" TORTURE_FLAG
"--- %s: nreaders=%d nfakewriters=%d "
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 068de3a93606..30201494560b 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1032,7 +1032,7 @@ static unsigned long rcu_cbs_completed(struct rcu_state *rsp,
* rcu_nocb_wait_gp().
*/
static void trace_rcu_future_gp(struct rcu_node *rnp, struct rcu_data *rdp,
- unsigned long c, char *s)
+ unsigned long c, const char *s)
{
trace_rcu_future_grace_period(rdp->rsp->name, rnp->gpnum,
rnp->completed, c, rnp->level,
@@ -2720,7 +2720,7 @@ static int rcu_cpu_has_callbacks(int cpu, bool *all_lazy)
* Helper function for _rcu_barrier() tracing. If tracing is disabled,
* the compiler is expected to optimize this away.
*/
-static void _rcu_barrier_trace(struct rcu_state *rsp, char *s,
+static void _rcu_barrier_trace(struct rcu_state *rsp, const char *s,
int cpu, unsigned long done)
{
trace_rcu_barrier(rsp->name, s, cpu,
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index b3832581043c..cbdeac6cea9e 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -445,7 +445,7 @@ struct rcu_state {
/* for CPU stalls. */
unsigned long gp_max; /* Maximum GP duration in */
/* jiffies. */
- char *name; /* Name of structure. */
+ const char *name; /* Name of structure. */
char abbr; /* Abbreviated name. */
struct list_head flavors; /* List of RCU flavors. */
struct irq_work wakeup_work; /* Postponed wakeups */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 19:29:12 +0000