diff options
-rw-r--r-- | include/linux/rcupdate.h | 4 | ||||
-rw-r--r-- | include/trace/events/rcu.h | 82 | ||||
-rw-r--r-- | kernel/rcu.h | 2 | ||||
-rw-r--r-- | kernel/rcupdate.c | 2 | ||||
-rw-r--r-- | kernel/rcutiny.c | 2 | ||||
-rw-r--r-- | kernel/rcutiny_plugin.h | 2 | ||||
-rw-r--r-- | kernel/rcutorture.c | 8 | ||||
-rw-r--r-- | kernel/rcutree.c | 4 | ||||
-rw-r--r-- | kernel/rcutree.h | 2 |
9 files changed, 54 insertions, 54 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 4b14bdc..0c38abb 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 59ebcc8..ee2376c 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 7f8e759..0a90ccc 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 cce6ba8..14994d4 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 aa34411..9ed6075 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 0cd385ac..280d06c 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 f4871e5..3d936f0f 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 068de3a..3020149 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 b383258..cbdeac6 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 */ |