Lines Matching refs:tr
99 dummy_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set) in dummy_set_flag() argument
178 int tracing_set_tracer(struct trace_array *tr, const char *buf);
179 static void ftrace_trace_userstack(struct trace_array *tr,
443 struct trace_array *tr; in trace_array_get() local
447 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_get()
448 if (tr == this_tr) { in trace_array_get()
449 tr->ref++; in trace_array_get()
485 int tracing_check_open_get_tr(struct trace_array *tr) in tracing_check_open_get_tr() argument
496 if (tr && trace_array_get(tr) < 0) in tracing_check_open_get_tr()
898 static inline void ftrace_trace_stack(struct trace_array *tr,
909 static inline void ftrace_trace_stack(struct trace_array *tr, in ftrace_trace_stack() argument
942 void tracer_tracing_on(struct trace_array *tr) in tracer_tracing_on() argument
944 if (tr->array_buffer.buffer) in tracer_tracing_on()
945 ring_buffer_record_on(tr->array_buffer.buffer); in tracer_tracing_on()
954 tr->buffer_disabled = 0; in tracer_tracing_on()
1083 static void tracing_snapshot_instance_cond(struct trace_array *tr, in tracing_snapshot_instance_cond() argument
1086 struct tracer *tracer = tr->current_trace; in tracing_snapshot_instance_cond()
1095 if (!tr->allocated_snapshot) { in tracing_snapshot_instance_cond()
1110 update_max_tr(tr, current, smp_processor_id(), cond_data); in tracing_snapshot_instance_cond()
1114 void tracing_snapshot_instance(struct trace_array *tr) in tracing_snapshot_instance() argument
1116 tracing_snapshot_instance_cond(tr, NULL); in tracing_snapshot_instance()
1135 struct trace_array *tr = &global_trace; in tracing_snapshot() local
1137 tracing_snapshot_instance(tr); in tracing_snapshot()
1154 void tracing_snapshot_cond(struct trace_array *tr, void *cond_data) in tracing_snapshot_cond() argument
1156 tracing_snapshot_instance_cond(tr, cond_data); in tracing_snapshot_cond()
1174 void *tracing_cond_snapshot_data(struct trace_array *tr) in tracing_cond_snapshot_data() argument
1178 arch_spin_lock(&tr->max_lock); in tracing_cond_snapshot_data()
1180 if (tr->cond_snapshot) in tracing_cond_snapshot_data()
1181 cond_data = tr->cond_snapshot->cond_data; in tracing_cond_snapshot_data()
1183 arch_spin_unlock(&tr->max_lock); in tracing_cond_snapshot_data()
1193 int tracing_alloc_snapshot_instance(struct trace_array *tr) in tracing_alloc_snapshot_instance() argument
1197 if (!tr->allocated_snapshot) { in tracing_alloc_snapshot_instance()
1200 ret = resize_buffer_duplicate_size(&tr->max_buffer, in tracing_alloc_snapshot_instance()
1201 &tr->array_buffer, RING_BUFFER_ALL_CPUS); in tracing_alloc_snapshot_instance()
1205 tr->allocated_snapshot = true; in tracing_alloc_snapshot_instance()
1211 static void free_snapshot(struct trace_array *tr) in free_snapshot() argument
1218 ring_buffer_resize(tr->max_buffer.buffer, 1, RING_BUFFER_ALL_CPUS); in free_snapshot()
1219 set_buffer_entries(&tr->max_buffer, 1); in free_snapshot()
1220 tracing_reset_online_cpus(&tr->max_buffer); in free_snapshot()
1221 tr->allocated_snapshot = false; in free_snapshot()
1236 struct trace_array *tr = &global_trace; in tracing_alloc_snapshot() local
1239 ret = tracing_alloc_snapshot_instance(tr); in tracing_alloc_snapshot()
1282 int tracing_snapshot_cond_enable(struct trace_array *tr, void *cond_data, in tracing_snapshot_cond_enable() argument
1297 ret = tracing_alloc_snapshot_instance(tr); in tracing_snapshot_cond_enable()
1301 if (tr->current_trace->use_max_tr) { in tracing_snapshot_cond_enable()
1314 if (tr->cond_snapshot) { in tracing_snapshot_cond_enable()
1319 arch_spin_lock(&tr->max_lock); in tracing_snapshot_cond_enable()
1320 tr->cond_snapshot = cond_snapshot; in tracing_snapshot_cond_enable()
1321 arch_spin_unlock(&tr->max_lock); in tracing_snapshot_cond_enable()
1344 int tracing_snapshot_cond_disable(struct trace_array *tr) in tracing_snapshot_cond_disable() argument
1348 arch_spin_lock(&tr->max_lock); in tracing_snapshot_cond_disable()
1350 if (!tr->cond_snapshot) in tracing_snapshot_cond_disable()
1353 kfree(tr->cond_snapshot); in tracing_snapshot_cond_disable()
1354 tr->cond_snapshot = NULL; in tracing_snapshot_cond_disable()
1357 arch_spin_unlock(&tr->max_lock); in tracing_snapshot_cond_disable()
1368 void tracing_snapshot_cond(struct trace_array *tr, void *cond_data) in tracing_snapshot_cond() argument
1385 void *tracing_cond_snapshot_data(struct trace_array *tr) in tracing_cond_snapshot_data() argument
1390 int tracing_snapshot_cond_enable(struct trace_array *tr, void *cond_data, cond_update_fn_t update) in tracing_snapshot_cond_enable() argument
1395 int tracing_snapshot_cond_disable(struct trace_array *tr) in tracing_snapshot_cond_disable() argument
1402 void tracer_tracing_off(struct trace_array *tr) in tracer_tracing_off() argument
1404 if (tr->array_buffer.buffer) in tracer_tracing_off()
1405 ring_buffer_record_off(tr->array_buffer.buffer); in tracer_tracing_off()
1414 tr->buffer_disabled = 1; in tracer_tracing_off()
1448 bool tracer_tracing_is_on(struct trace_array *tr) in tracer_tracing_is_on() argument
1450 if (tr->array_buffer.buffer) in tracer_tracing_is_on()
1451 return ring_buffer_record_is_on(tr->array_buffer.buffer); in tracer_tracing_is_on()
1452 return !tr->buffer_disabled; in tracer_tracing_is_on()
1530 bool trace_clock_in_ns(struct trace_array *tr) in trace_clock_in_ns() argument
1532 if (trace_clocks[tr->clock_id].in_ns) in trace_clock_in_ns()
1676 struct trace_array *tr = container_of(work, struct trace_array, in latency_fsnotify_workfn() local
1678 fsnotify_inode(tr->d_max_latency->d_inode, FS_MODIFY); in latency_fsnotify_workfn()
1683 struct trace_array *tr = container_of(iwork, struct trace_array, in latency_fsnotify_workfn_irq() local
1685 queue_work(fsnotify_wq, &tr->fsnotify_work); in latency_fsnotify_workfn_irq()
1688 static void trace_create_maxlat_file(struct trace_array *tr, in trace_create_maxlat_file() argument
1691 INIT_WORK(&tr->fsnotify_work, latency_fsnotify_workfn); in trace_create_maxlat_file()
1692 init_irq_work(&tr->fsnotify_irqwork, latency_fsnotify_workfn_irq); in trace_create_maxlat_file()
1693 tr->d_max_latency = trace_create_file("tracing_max_latency", in trace_create_maxlat_file()
1695 d_tracer, &tr->max_latency, in trace_create_maxlat_file()
1712 void latency_fsnotify(struct trace_array *tr) in latency_fsnotify() argument
1721 irq_work_queue(&tr->fsnotify_irqwork); in latency_fsnotify()
1727 #define trace_create_maxlat_file(tr, d_tracer) \ argument
1729 d_tracer, &tr->max_latency, &tracing_max_lat_fops)
1732 #define trace_create_maxlat_file(tr, d_tracer) do { } while (0) argument
1742 __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) in __update_max_tr() argument
1744 struct array_buffer *trace_buf = &tr->array_buffer; in __update_max_tr()
1745 struct array_buffer *max_buf = &tr->max_buffer; in __update_max_tr()
1752 max_data->saved_latency = tr->max_latency; in __update_max_tr()
1773 latency_fsnotify(tr); in __update_max_tr()
1787 update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu, in update_max_tr() argument
1790 if (tr->stop_count) in update_max_tr()
1795 if (!tr->allocated_snapshot) { in update_max_tr()
1797 WARN_ON_ONCE(tr->current_trace != &nop_trace); in update_max_tr()
1801 arch_spin_lock(&tr->max_lock); in update_max_tr()
1804 if (ring_buffer_record_is_set_on(tr->array_buffer.buffer)) in update_max_tr()
1805 ring_buffer_record_on(tr->max_buffer.buffer); in update_max_tr()
1807 ring_buffer_record_off(tr->max_buffer.buffer); in update_max_tr()
1810 if (tr->cond_snapshot && !tr->cond_snapshot->update(tr, cond_data)) in update_max_tr()
1813 swap(tr->array_buffer.buffer, tr->max_buffer.buffer); in update_max_tr()
1815 __update_max_tr(tr, tsk, cpu); in update_max_tr()
1818 arch_spin_unlock(&tr->max_lock); in update_max_tr()
1830 update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu) in update_max_tr_single() argument
1834 if (tr->stop_count) in update_max_tr_single()
1838 if (!tr->allocated_snapshot) { in update_max_tr_single()
1840 WARN_ON_ONCE(tr->current_trace != &nop_trace); in update_max_tr_single()
1844 arch_spin_lock(&tr->max_lock); in update_max_tr_single()
1846 ret = ring_buffer_swap_cpu(tr->max_buffer.buffer, tr->array_buffer.buffer, cpu); in update_max_tr_single()
1855 trace_array_printk_buf(tr->max_buffer.buffer, _THIS_IP_, in update_max_tr_single()
1861 __update_max_tr(tr, tsk, cpu); in update_max_tr_single()
1862 arch_spin_unlock(&tr->max_lock); in update_max_tr_single()
1901 struct trace_array *tr = &global_trace; in run_tracer_selftest() local
1902 struct tracer *saved_tracer = tr->current_trace; in run_tracer_selftest()
1929 tracing_reset_online_cpus(&tr->array_buffer); in run_tracer_selftest()
1931 tr->current_trace = type; in run_tracer_selftest()
1937 ring_buffer_resize(tr->max_buffer.buffer, trace_buf_size, in run_tracer_selftest()
1939 tr->allocated_snapshot = true; in run_tracer_selftest()
1945 ret = type->selftest(type, tr); in run_tracer_selftest()
1947 tr->current_trace = saved_tracer; in run_tracer_selftest()
1955 tracing_reset_online_cpus(&tr->array_buffer); in run_tracer_selftest()
1959 tr->allocated_snapshot = false; in run_tracer_selftest()
1963 ring_buffer_resize(tr->max_buffer.buffer, 1, in run_tracer_selftest()
2025 static void add_tracer_options(struct trace_array *tr, struct tracer *t);
2158 struct trace_array *tr; in tracing_reset_all_online_cpus() local
2160 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in tracing_reset_all_online_cpus()
2161 if (!tr->clear_trace) in tracing_reset_all_online_cpus()
2163 tr->clear_trace = false; in tracing_reset_all_online_cpus()
2164 tracing_reset_online_cpus(&tr->array_buffer); in tracing_reset_all_online_cpus()
2166 tracing_reset_online_cpus(&tr->max_buffer); in tracing_reset_all_online_cpus()
2293 static void tracing_start_tr(struct trace_array *tr) in tracing_start_tr() argument
2302 if (tr->flags & TRACE_ARRAY_FL_GLOBAL) in tracing_start_tr()
2305 raw_spin_lock_irqsave(&tr->start_lock, flags); in tracing_start_tr()
2307 if (--tr->stop_count) { in tracing_start_tr()
2308 if (tr->stop_count < 0) { in tracing_start_tr()
2311 tr->stop_count = 0; in tracing_start_tr()
2316 buffer = tr->array_buffer.buffer; in tracing_start_tr()
2321 raw_spin_unlock_irqrestore(&tr->start_lock, flags); in tracing_start_tr()
2358 static void tracing_stop_tr(struct trace_array *tr) in tracing_stop_tr() argument
2364 if (tr->flags & TRACE_ARRAY_FL_GLOBAL) in tracing_stop_tr()
2367 raw_spin_lock_irqsave(&tr->start_lock, flags); in tracing_stop_tr()
2368 if (tr->stop_count++) in tracing_stop_tr()
2371 buffer = tr->array_buffer.buffer; in tracing_stop_tr()
2376 raw_spin_unlock_irqrestore(&tr->start_lock, flags); in tracing_stop_tr()
2742 struct trace_array *tr = trace_file->tr; in trace_event_buffer_lock_reserve() local
2745 *current_rb = tr->array_buffer.buffer; in trace_event_buffer_lock_reserve()
2747 if (!tr->no_filter_buffering_ref && in trace_event_buffer_lock_reserve()
2899 trace_buffer_unlock_commit_regs(file->tr, fbuffer->buffer, in trace_event_buffer_commit()
2918 void trace_buffer_unlock_commit_regs(struct trace_array *tr, in trace_buffer_unlock_commit_regs() argument
2932 ftrace_trace_stack(tr, buffer, trace_ctx, regs ? 0 : STACK_SKIP, regs); in trace_buffer_unlock_commit_regs()
2933 ftrace_trace_userstack(tr, buffer, trace_ctx); in trace_buffer_unlock_commit_regs()
2947 trace_function(struct trace_array *tr, unsigned long ip, unsigned long in trace_function() argument
2951 struct trace_buffer *buffer = tr->array_buffer.buffer; in trace_function()
3058 static inline void ftrace_trace_stack(struct trace_array *tr, in ftrace_trace_stack() argument
3063 if (!(tr->trace_flags & TRACE_ITER_STACKTRACE)) in ftrace_trace_stack()
3069 void __trace_stack(struct trace_array *tr, unsigned int trace_ctx, in __trace_stack() argument
3072 struct trace_buffer *buffer = tr->array_buffer.buffer; in __trace_stack()
3115 ftrace_trace_userstack(struct trace_array *tr, in ftrace_trace_userstack() argument
3122 if (!(tr->trace_flags & TRACE_ITER_USERSTACKTRACE)) in ftrace_trace_userstack()
3161 static void ftrace_trace_userstack(struct trace_array *tr, in ftrace_trace_userstack() argument
3178 void trace_last_func_repeats(struct trace_array *tr, in trace_last_func_repeats() argument
3182 struct trace_buffer *buffer = tr->array_buffer.buffer; in trace_last_func_repeats()
3325 struct trace_array *tr = &global_trace; in trace_vbprintk() local
3352 buffer = tr->array_buffer.buffer; in trace_vbprintk()
3365 ftrace_trace_stack(tr, buffer, trace_ctx, 6, NULL); in trace_vbprintk()
3438 int trace_array_vprintk(struct trace_array *tr, in trace_array_vprintk() argument
3441 return __trace_array_vprintk(tr->array_buffer.buffer, ip, fmt, args); in trace_array_vprintk()
3465 int trace_array_printk(struct trace_array *tr, in trace_array_printk() argument
3471 if (!tr) in trace_array_printk()
3475 if (tr == &global_trace) in trace_array_printk()
3478 if (!(tr->trace_flags & TRACE_ITER_PRINTK)) in trace_array_printk()
3482 ret = trace_array_vprintk(tr, ip, fmt, ap); in trace_array_printk()
3496 int trace_array_init_printk(struct trace_array *tr) in trace_array_init_printk() argument
3498 if (!tr) in trace_array_init_printk()
3502 if (tr == &global_trace) in trace_array_init_printk()
3637 if (!iter->tr || iter->fmt == static_fmt_buf) in trace_iter_expand_format()
3891 if (!iter->tr || iter->tr->trace_flags & TRACE_ITER_HASH_PTR) in trace_event_format()
4052 struct trace_array *tr = iter->tr; in s_start() local
4065 if (unlikely(tr->current_trace && iter->trace->name != tr->current_trace->name)) in s_start()
4066 *iter->trace = *tr->current_trace; in s_start()
4159 unsigned long trace_total_entries_cpu(struct trace_array *tr, int cpu) in trace_total_entries_cpu() argument
4163 if (!tr) in trace_total_entries_cpu()
4164 tr = &global_trace; in trace_total_entries_cpu()
4166 get_total_entries_cpu(&tr->array_buffer, &total, &entries, cpu); in trace_total_entries_cpu()
4171 unsigned long trace_total_entries(struct trace_array *tr) in trace_total_entries() argument
4175 if (!tr) in trace_total_entries()
4176 tr = &global_trace; in trace_total_entries()
4178 get_total_entries(&tr->array_buffer, &total, &entries); in trace_total_entries()
4304 struct trace_array *tr = iter->tr; in test_cpu_buff_start() local
4306 if (!(tr->trace_flags & TRACE_ITER_ANNOTATE)) in test_cpu_buff_start()
4330 struct trace_array *tr = iter->tr; in print_trace_fmt() local
4332 unsigned long sym_flags = (tr->trace_flags & TRACE_ITER_SYM_MASK); in print_trace_fmt()
4342 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { in print_trace_fmt()
4362 struct trace_array *tr = iter->tr; in print_raw_fmt() local
4369 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) in print_raw_fmt()
4387 struct trace_array *tr = iter->tr; in print_hex_fmt() local
4395 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { in print_hex_fmt()
4417 struct trace_array *tr = iter->tr; in print_bin_fmt() local
4424 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { in print_bin_fmt()
4473 struct trace_array *tr = iter->tr; in print_trace_line() local
4474 unsigned long trace_flags = tr->trace_flags; in print_trace_line()
4524 struct trace_array *tr = iter->tr; in trace_latency_header() local
4533 if (!(tr->trace_flags & TRACE_ITER_VERBOSE)) in trace_latency_header()
4540 struct trace_array *tr = iter->tr; in trace_default_header() local
4541 unsigned long trace_flags = tr->trace_flags; in trace_default_header()
4601 if (iter->tr->allocated_snapshot) in print_snapshot_help()
4623 if (iter->tr) { in s_show()
4682 struct trace_array *tr = inode->i_private; in __tracing_open() local
4729 *iter->trace = *tr->current_trace; in __tracing_open()
4734 iter->tr = tr; in __tracing_open()
4738 if (tr->current_trace->print_max || snapshot) in __tracing_open()
4739 iter->array_buffer = &tr->max_buffer; in __tracing_open()
4742 iter->array_buffer = &tr->array_buffer; in __tracing_open()
4757 if (trace_clocks[tr->clock_id].in_ns) in __tracing_open()
4764 if (!iter->snapshot && (tr->trace_flags & TRACE_ITER_PAUSE_ON_TRACE)) in __tracing_open()
4765 tracing_stop_tr(tr); in __tracing_open()
4825 struct trace_array *tr = inode->i_private; in tracing_open_generic_tr() local
4828 ret = tracing_check_open_get_tr(tr); in tracing_open_generic_tr()
4839 struct trace_array *tr = inode->i_private; in tracing_release() local
4845 trace_array_put(tr); in tracing_release()
4861 if (!iter->snapshot && tr->stop_count) in tracing_release()
4863 tracing_start_tr(tr); in tracing_release()
4865 __trace_array_put(tr); in tracing_release()
4882 struct trace_array *tr = inode->i_private; in tracing_release_generic_tr() local
4884 trace_array_put(tr); in tracing_release_generic_tr()
4890 struct trace_array *tr = inode->i_private; in tracing_single_release_tr() local
4892 trace_array_put(tr); in tracing_single_release_tr()
4899 struct trace_array *tr = inode->i_private; in tracing_open() local
4903 ret = tracing_check_open_get_tr(tr); in tracing_open()
4910 struct array_buffer *trace_buf = &tr->array_buffer; in tracing_open()
4913 if (tr->current_trace->print_max) in tracing_open()
4914 trace_buf = &tr->max_buffer; in tracing_open()
4927 else if (tr->trace_flags & TRACE_ITER_LATENCY_FMT) in tracing_open()
4932 trace_array_put(tr); in tracing_open()
4943 trace_ok_for_array(struct tracer *t, struct trace_array *tr) in trace_ok_for_array() argument
4945 return (tr->flags & TRACE_ARRAY_FL_GLOBAL) || t->allow_instances; in trace_ok_for_array()
4950 get_tracer_for_array(struct trace_array *tr, struct tracer *t) in get_tracer_for_array() argument
4952 while (t && !trace_ok_for_array(t, tr)) in get_tracer_for_array()
4961 struct trace_array *tr = m->private; in t_next() local
4967 t = get_tracer_for_array(tr, t->next); in t_next()
4974 struct trace_array *tr = m->private; in t_start() local
4980 t = get_tracer_for_array(tr, trace_types); in t_start()
5017 struct trace_array *tr = inode->i_private; in show_traces_open() local
5021 ret = tracing_check_open_get_tr(tr); in show_traces_open()
5027 trace_array_put(tr); in show_traces_open()
5032 m->private = tr; in show_traces_open()
5039 struct trace_array *tr = inode->i_private; in show_traces_release() local
5041 trace_array_put(tr); in show_traces_release()
5083 struct trace_array *tr = file_inode(filp)->i_private; in tracing_cpumask_read() local
5088 cpumask_pr_args(tr->tracing_cpumask)) + 1; in tracing_cpumask_read()
5094 cpumask_pr_args(tr->tracing_cpumask)); in tracing_cpumask_read()
5107 int tracing_set_cpumask(struct trace_array *tr, in tracing_set_cpumask() argument
5112 if (!tr) in tracing_set_cpumask()
5116 arch_spin_lock(&tr->max_lock); in tracing_set_cpumask()
5122 if (cpumask_test_cpu(cpu, tr->tracing_cpumask) && in tracing_set_cpumask()
5124 atomic_inc(&per_cpu_ptr(tr->array_buffer.data, cpu)->disabled); in tracing_set_cpumask()
5125 ring_buffer_record_disable_cpu(tr->array_buffer.buffer, cpu); in tracing_set_cpumask()
5127 if (!cpumask_test_cpu(cpu, tr->tracing_cpumask) && in tracing_set_cpumask()
5129 atomic_dec(&per_cpu_ptr(tr->array_buffer.data, cpu)->disabled); in tracing_set_cpumask()
5130 ring_buffer_record_enable_cpu(tr->array_buffer.buffer, cpu); in tracing_set_cpumask()
5133 arch_spin_unlock(&tr->max_lock); in tracing_set_cpumask()
5136 cpumask_copy(tr->tracing_cpumask, tracing_cpumask_new); in tracing_set_cpumask()
5145 struct trace_array *tr = file_inode(filp)->i_private; in tracing_cpumask_write() local
5156 err = tracing_set_cpumask(tr, tracing_cpumask_new); in tracing_cpumask_write()
5181 struct trace_array *tr = m->private; in tracing_trace_options_show() local
5186 tracer_flags = tr->current_trace->flags->val; in tracing_trace_options_show()
5187 trace_opts = tr->current_trace->flags->opts; in tracing_trace_options_show()
5190 if (tr->trace_flags & (1 << i)) in tracing_trace_options_show()
5207 static int __set_tracer_option(struct trace_array *tr, in __set_tracer_option() argument
5214 ret = trace->set_flag(tr, tracer_flags->val, opts->bit, !neg); in __set_tracer_option()
5226 static int set_tracer_option(struct trace_array *tr, char *cmp, int neg) in set_tracer_option() argument
5228 struct tracer *trace = tr->current_trace; in set_tracer_option()
5237 return __set_tracer_option(tr, trace->flags, opts, neg); in set_tracer_option()
5252 int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled) in set_tracer_flag() argument
5261 if (!!(tr->trace_flags & mask) == !!enabled) in set_tracer_flag()
5265 if (tr->current_trace->flag_changed) in set_tracer_flag()
5266 if (tr->current_trace->flag_changed(tr, mask, !!enabled)) in set_tracer_flag()
5270 tr->trace_flags |= mask; in set_tracer_flag()
5272 tr->trace_flags &= ~mask; in set_tracer_flag()
5292 tr->trace_flags &= ~TRACE_ITER_RECORD_TGID; in set_tracer_flag()
5300 trace_event_follow_fork(tr, enabled); in set_tracer_flag()
5303 ftrace_pid_follow_fork(tr, enabled); in set_tracer_flag()
5306 ring_buffer_change_overwrite(tr->array_buffer.buffer, enabled); in set_tracer_flag()
5308 ring_buffer_change_overwrite(tr->max_buffer.buffer, enabled); in set_tracer_flag()
5320 int trace_set_options(struct trace_array *tr, char *option) in trace_set_options() argument
5342 ret = set_tracer_option(tr, cmp, neg); in trace_set_options()
5344 ret = set_tracer_flag(tr, 1 << ret, !neg); in trace_set_options()
5384 struct trace_array *tr = m->private; in tracing_trace_options_write() local
5396 ret = trace_set_options(tr, buf); in tracing_trace_options_write()
5407 struct trace_array *tr = inode->i_private; in tracing_trace_options_open() local
5410 ret = tracing_check_open_get_tr(tr); in tracing_trace_options_open()
5416 trace_array_put(tr); in tracing_trace_options_open()
6109 struct trace_array *tr = filp->private_data; in tracing_set_trace_read() local
6114 r = sprintf(buf, "%s\n", tr->current_trace->name); in tracing_set_trace_read()
6120 int tracer_init(struct tracer *t, struct trace_array *tr) in tracer_init() argument
6122 tracing_reset_online_cpus(&tr->array_buffer); in tracer_init()
6123 return t->init(tr); in tracer_init()
6162 static int __tracing_resize_ring_buffer(struct trace_array *tr, in __tracing_resize_ring_buffer() argument
6175 if (!tr->array_buffer.buffer) in __tracing_resize_ring_buffer()
6178 ret = ring_buffer_resize(tr->array_buffer.buffer, size, cpu); in __tracing_resize_ring_buffer()
6183 if (!(tr->flags & TRACE_ARRAY_FL_GLOBAL) || in __tracing_resize_ring_buffer()
6184 !tr->current_trace->use_max_tr) in __tracing_resize_ring_buffer()
6187 ret = ring_buffer_resize(tr->max_buffer.buffer, size, cpu); in __tracing_resize_ring_buffer()
6189 int r = resize_buffer_duplicate_size(&tr->array_buffer, in __tracing_resize_ring_buffer()
6190 &tr->array_buffer, cpu); in __tracing_resize_ring_buffer()
6213 set_buffer_entries(&tr->max_buffer, size); in __tracing_resize_ring_buffer()
6215 per_cpu_ptr(tr->max_buffer.data, cpu)->entries = size; in __tracing_resize_ring_buffer()
6221 set_buffer_entries(&tr->array_buffer, size); in __tracing_resize_ring_buffer()
6223 per_cpu_ptr(tr->array_buffer.data, cpu)->entries = size; in __tracing_resize_ring_buffer()
6228 ssize_t tracing_resize_ring_buffer(struct trace_array *tr, in tracing_resize_ring_buffer() argument
6243 ret = __tracing_resize_ring_buffer(tr, size, cpu_id); in tracing_resize_ring_buffer()
6280 create_trace_option_files(struct trace_array *tr, struct tracer *tracer);
6286 static void tracing_set_nop(struct trace_array *tr) in tracing_set_nop() argument
6288 if (tr->current_trace == &nop_trace) in tracing_set_nop()
6291 tr->current_trace->enabled--; in tracing_set_nop()
6293 if (tr->current_trace->reset) in tracing_set_nop()
6294 tr->current_trace->reset(tr); in tracing_set_nop()
6296 tr->current_trace = &nop_trace; in tracing_set_nop()
6299 static void add_tracer_options(struct trace_array *tr, struct tracer *t) in add_tracer_options() argument
6302 if (!tr->dir) in add_tracer_options()
6305 create_trace_option_files(tr, t); in add_tracer_options()
6308 int tracing_set_tracer(struct trace_array *tr, const char *buf) in tracing_set_tracer() argument
6319 ret = __tracing_resize_ring_buffer(tr, trace_buf_size, in tracing_set_tracer()
6334 if (t == tr->current_trace) in tracing_set_tracer()
6339 arch_spin_lock(&tr->max_lock); in tracing_set_tracer()
6340 if (tr->cond_snapshot) in tracing_set_tracer()
6342 arch_spin_unlock(&tr->max_lock); in tracing_set_tracer()
6355 if (!trace_ok_for_array(t, tr)) { in tracing_set_tracer()
6361 if (tr->trace_ref) { in tracing_set_tracer()
6368 tr->current_trace->enabled--; in tracing_set_tracer()
6370 if (tr->current_trace->reset) in tracing_set_tracer()
6371 tr->current_trace->reset(tr); in tracing_set_tracer()
6374 tr->current_trace = &nop_trace; in tracing_set_tracer()
6377 had_max_tr = tr->allocated_snapshot; in tracing_set_tracer()
6388 free_snapshot(tr); in tracing_set_tracer()
6394 ret = tracing_alloc_snapshot_instance(tr); in tracing_set_tracer()
6401 ret = tracer_init(t, tr); in tracing_set_tracer()
6406 tr->current_trace = t; in tracing_set_tracer()
6407 tr->current_trace->enabled++; in tracing_set_tracer()
6408 trace_branch_enable(tr); in tracing_set_tracer()
6419 struct trace_array *tr = filp->private_data; in tracing_set_trace_write() local
6439 err = tracing_set_tracer(tr, buf); in tracing_set_trace_write()
6489 struct trace_array *tr = filp->private_data; in tracing_thresh_write() local
6497 if (tr->current_trace->update_thresh) { in tracing_thresh_write()
6498 ret = tr->current_trace->update_thresh(tr); in tracing_thresh_write()
6530 struct trace_array *tr = inode->i_private; in tracing_open_pipe() local
6534 ret = tracing_check_open_get_tr(tr); in tracing_open_pipe()
6544 __trace_array_put(tr); in tracing_open_pipe()
6549 iter->trace = tr->current_trace; in tracing_open_pipe()
6559 if (tr->trace_flags & TRACE_ITER_LATENCY_FMT) in tracing_open_pipe()
6563 if (trace_clocks[tr->clock_id].in_ns) in tracing_open_pipe()
6566 iter->tr = tr; in tracing_open_pipe()
6567 iter->array_buffer = &tr->array_buffer; in tracing_open_pipe()
6577 tr->trace_ref++; in tracing_open_pipe()
6584 __trace_array_put(tr); in tracing_open_pipe()
6592 struct trace_array *tr = inode->i_private; in tracing_release_pipe() local
6596 tr->trace_ref--; in tracing_release_pipe()
6607 trace_array_put(tr); in tracing_release_pipe()
6615 struct trace_array *tr = iter->tr; in trace_poll() local
6621 if (tr->trace_flags & TRACE_ITER_BLOCK) in trace_poll()
6660 if (!tracer_tracing_is_on(iter->tr) && iter->pos) in tracing_wait_pipe()
6917 struct trace_array *tr = inode->i_private; in tracing_entries_read() local
6935 size = per_cpu_ptr(tr->array_buffer.data, cpu)->entries; in tracing_entries_read()
6936 if (size != per_cpu_ptr(tr->array_buffer.data, cpu)->entries) { in tracing_entries_read()
6952 r = sprintf(buf, "%lu\n", per_cpu_ptr(tr->array_buffer.data, cpu)->entries >> 10); in tracing_entries_read()
6965 struct trace_array *tr = inode->i_private; in tracing_entries_write() local
6979 ret = tracing_resize_ring_buffer(tr, val, tracing_get_cpu(inode)); in tracing_entries_write()
6992 struct trace_array *tr = filp->private_data; in tracing_total_entries_read() local
6999 size += per_cpu_ptr(tr->array_buffer.data, cpu)->entries >> 10; in tracing_total_entries_read()
7029 struct trace_array *tr = inode->i_private; in tracing_free_buffer_release() local
7032 if (tr->trace_flags & TRACE_ITER_STOP_ON_FREE) in tracing_free_buffer_release()
7033 tracer_tracing_off(tr); in tracing_free_buffer_release()
7035 tracing_resize_ring_buffer(tr, 0, RING_BUFFER_ALL_CPUS); in tracing_free_buffer_release()
7037 trace_array_put(tr); in tracing_free_buffer_release()
7046 struct trace_array *tr = filp->private_data; in tracing_mark_write() local
7062 if (!(tr->trace_flags & TRACE_ITER_MARKERS)) in tracing_mark_write()
7076 buffer = tr->array_buffer.buffer; in tracing_mark_write()
7094 if (tr->trace_marker_file && !list_empty(&tr->trace_marker_file->triggers)) { in tracing_mark_write()
7097 tt = event_triggers_call(tr->trace_marker_file, buffer, entry, event); in tracing_mark_write()
7111 event_triggers_post_call(tr->trace_marker_file, tt); in tracing_mark_write()
7126 struct trace_array *tr = filp->private_data; in tracing_mark_raw_write() local
7139 if (!(tr->trace_flags & TRACE_ITER_MARKERS)) in tracing_mark_raw_write()
7155 buffer = tr->array_buffer.buffer; in tracing_mark_raw_write()
7182 struct trace_array *tr = m->private; in tracing_clock_show() local
7188 i == tr->clock_id ? "[" : "", trace_clocks[i].name, in tracing_clock_show()
7189 i == tr->clock_id ? "]" : ""); in tracing_clock_show()
7195 int tracing_set_clock(struct trace_array *tr, const char *clockstr) in tracing_set_clock() argument
7208 tr->clock_id = i; in tracing_set_clock()
7210 ring_buffer_set_clock(tr->array_buffer.buffer, trace_clocks[i].func); in tracing_set_clock()
7216 tracing_reset_online_cpus(&tr->array_buffer); in tracing_set_clock()
7219 if (tr->max_buffer.buffer) in tracing_set_clock()
7220 ring_buffer_set_clock(tr->max_buffer.buffer, trace_clocks[i].func); in tracing_set_clock()
7221 tracing_reset_online_cpus(&tr->max_buffer); in tracing_set_clock()
7233 struct trace_array *tr = m->private; in tracing_clock_write() local
7248 ret = tracing_set_clock(tr, clockstr); in tracing_clock_write()
7259 struct trace_array *tr = inode->i_private; in tracing_clock_open() local
7262 ret = tracing_check_open_get_tr(tr); in tracing_clock_open()
7268 trace_array_put(tr); in tracing_clock_open()
7275 struct trace_array *tr = m->private; in tracing_time_stamp_mode_show() local
7279 if (ring_buffer_time_stamp_abs(tr->array_buffer.buffer)) in tracing_time_stamp_mode_show()
7291 struct trace_array *tr = inode->i_private; in tracing_time_stamp_mode_open() local
7294 ret = tracing_check_open_get_tr(tr); in tracing_time_stamp_mode_open()
7300 trace_array_put(tr); in tracing_time_stamp_mode_open()
7316 int tracing_set_filter_buffering(struct trace_array *tr, bool set) in tracing_set_filter_buffering() argument
7322 if (set && tr->no_filter_buffering_ref++) in tracing_set_filter_buffering()
7326 if (WARN_ON_ONCE(!tr->no_filter_buffering_ref)) { in tracing_set_filter_buffering()
7331 --tr->no_filter_buffering_ref; in tracing_set_filter_buffering()
7349 struct trace_array *tr = inode->i_private; in tracing_snapshot_open() local
7354 ret = tracing_check_open_get_tr(tr); in tracing_snapshot_open()
7375 iter->tr = tr; in tracing_snapshot_open()
7376 iter->array_buffer = &tr->max_buffer; in tracing_snapshot_open()
7383 trace_array_put(tr); in tracing_snapshot_open()
7394 struct trace_array *tr = iter->tr; in tracing_snapshot_write() local
7408 if (tr->current_trace->use_max_tr) { in tracing_snapshot_write()
7413 arch_spin_lock(&tr->max_lock); in tracing_snapshot_write()
7414 if (tr->cond_snapshot) in tracing_snapshot_write()
7416 arch_spin_unlock(&tr->max_lock); in tracing_snapshot_write()
7426 if (tr->allocated_snapshot) in tracing_snapshot_write()
7427 free_snapshot(tr); in tracing_snapshot_write()
7437 if (tr->allocated_snapshot) in tracing_snapshot_write()
7438 ret = resize_buffer_duplicate_size(&tr->max_buffer, in tracing_snapshot_write()
7439 &tr->array_buffer, iter->cpu_file); in tracing_snapshot_write()
7441 ret = tracing_alloc_snapshot_instance(tr); in tracing_snapshot_write()
7447 update_max_tr(tr, current, smp_processor_id(), NULL); in tracing_snapshot_write()
7449 update_max_tr_single(tr, current, iter->cpu_file); in tracing_snapshot_write()
7453 if (tr->allocated_snapshot) { in tracing_snapshot_write()
7455 tracing_reset_online_cpus(&tr->max_buffer); in tracing_snapshot_write()
7457 tracing_reset_cpu(&tr->max_buffer, iter->cpu_file); in tracing_snapshot_write()
7514 info->iter.array_buffer = &info->iter.tr->max_buffer; in snapshot_raw_open()
7729 static struct tracing_log_err *get_tracing_log_err(struct trace_array *tr) in get_tracing_log_err() argument
7733 if (tr->n_err_log_entries < TRACING_LOG_ERRS_MAX) { in get_tracing_log_err()
7737 tr->n_err_log_entries++; in get_tracing_log_err()
7742 err = list_first_entry(&tr->err_log, struct tracing_log_err, list); in get_tracing_log_err()
7801 void tracing_log_err(struct trace_array *tr, in tracing_log_err() argument
7807 if (!tr) in tracing_log_err()
7808 tr = &global_trace; in tracing_log_err()
7811 err = get_tracing_log_err(tr); in tracing_log_err()
7825 list_add_tail(&err->list, &tr->err_log); in tracing_log_err()
7829 static void clear_tracing_err_log(struct trace_array *tr) in clear_tracing_err_log() argument
7834 list_for_each_entry_safe(err, next, &tr->err_log, list) { in clear_tracing_err_log()
7839 tr->n_err_log_entries = 0; in clear_tracing_err_log()
7845 struct trace_array *tr = m->private; in tracing_err_log_seq_start() local
7849 return seq_list_start(&tr->err_log, *pos); in tracing_err_log_seq_start()
7854 struct trace_array *tr = m->private; in tracing_err_log_seq_next() local
7856 return seq_list_next(v, &tr->err_log, pos); in tracing_err_log_seq_next()
7903 struct trace_array *tr = inode->i_private; in tracing_err_log_open() local
7906 ret = tracing_check_open_get_tr(tr); in tracing_err_log_open()
7912 clear_tracing_err_log(tr); in tracing_err_log_open()
7918 m->private = tr; in tracing_err_log_open()
7920 trace_array_put(tr); in tracing_err_log_open()
7935 struct trace_array *tr = inode->i_private; in tracing_err_log_release() local
7937 trace_array_put(tr); in tracing_err_log_release()
7955 struct trace_array *tr = inode->i_private; in tracing_buffers_open() local
7959 ret = tracing_check_open_get_tr(tr); in tracing_buffers_open()
7965 trace_array_put(tr); in tracing_buffers_open()
7971 info->iter.tr = tr; in tracing_buffers_open()
7973 info->iter.trace = tr->current_trace; in tracing_buffers_open()
7974 info->iter.array_buffer = &tr->array_buffer; in tracing_buffers_open()
7981 tr->trace_ref++; in tracing_buffers_open()
7987 trace_array_put(tr); in tracing_buffers_open()
8014 if (iter->snapshot && iter->tr->current_trace->use_max_tr) in tracing_buffers_read()
8082 iter->tr->trace_ref--; in tracing_buffers_release()
8084 __trace_array_put(iter->tr); in tracing_buffers_release()
8172 if (iter->snapshot && iter->tr->current_trace->use_max_tr) in tracing_buffers_splice_read()
8246 ret = wait_on_pipe(iter, iter->tr->buffer_percent); in tracing_buffers_splice_read()
8274 struct trace_array *tr = inode->i_private; in tracing_stats_read() local
8275 struct array_buffer *trace_buf = &tr->array_buffer; in tracing_stats_read()
8300 if (trace_clocks[tr->clock_id].in_ns) { in tracing_stats_read()
8375 struct trace_array *tr, struct ftrace_probe_ops *ops, in ftrace_snapshot() argument
8378 tracing_snapshot_instance(tr); in ftrace_snapshot()
8383 struct trace_array *tr, struct ftrace_probe_ops *ops, in ftrace_count_snapshot() argument
8400 tracing_snapshot_instance(tr); in ftrace_count_snapshot()
8426 ftrace_snapshot_init(struct ftrace_probe_ops *ops, struct trace_array *tr, in ftrace_snapshot_init() argument
8442 ftrace_snapshot_free(struct ftrace_probe_ops *ops, struct trace_array *tr, in ftrace_snapshot_free() argument
8470 ftrace_trace_snapshot_callback(struct trace_array *tr, struct ftrace_hash *hash, in ftrace_trace_snapshot_callback() argument
8478 if (!tr) in ftrace_trace_snapshot_callback()
8488 return unregister_ftrace_function_probe_func(glob+1, tr, ops); in ftrace_trace_snapshot_callback()
8507 ret = tracing_alloc_snapshot_instance(tr); in ftrace_trace_snapshot_callback()
8511 ret = register_ftrace_function_probe(glob, tr, ops, count); in ftrace_trace_snapshot_callback()
8530 static struct dentry *tracing_get_dentry(struct trace_array *tr) in tracing_get_dentry() argument
8532 if (WARN_ON(!tr->dir)) in tracing_get_dentry()
8536 if (tr->flags & TRACE_ARRAY_FL_GLOBAL) in tracing_get_dentry()
8540 return tr->dir; in tracing_get_dentry()
8543 static struct dentry *tracing_dentry_percpu(struct trace_array *tr, int cpu) in tracing_dentry_percpu() argument
8547 if (tr->percpu_dir) in tracing_dentry_percpu()
8548 return tr->percpu_dir; in tracing_dentry_percpu()
8550 d_tracer = tracing_get_dentry(tr); in tracing_dentry_percpu()
8554 tr->percpu_dir = tracefs_create_dir("per_cpu", d_tracer); in tracing_dentry_percpu()
8556 MEM_FAIL(!tr->percpu_dir, in tracing_dentry_percpu()
8559 return tr->percpu_dir; in tracing_dentry_percpu()
8574 tracing_init_tracefs_percpu(struct trace_array *tr, long cpu) in tracing_init_tracefs_percpu() argument
8576 struct dentry *d_percpu = tracing_dentry_percpu(tr, cpu); in tracing_init_tracefs_percpu()
8592 tr, cpu, &tracing_pipe_fops); in tracing_init_tracefs_percpu()
8596 tr, cpu, &tracing_fops); in tracing_init_tracefs_percpu()
8599 tr, cpu, &tracing_buffers_fops); in tracing_init_tracefs_percpu()
8602 tr, cpu, &tracing_stats_fops); in tracing_init_tracefs_percpu()
8605 tr, cpu, &tracing_entries_fops); in tracing_init_tracefs_percpu()
8609 tr, cpu, &snapshot_fops); in tracing_init_tracefs_percpu()
8612 tr, cpu, &snapshot_raw_fops); in tracing_init_tracefs_percpu()
8653 ret = __set_tracer_option(topt->tr, topt->flags, in trace_options_write()
8711 struct trace_array *tr; in trace_options_core_read() local
8715 get_tr_index(tr_index, &tr, &index); in trace_options_core_read()
8717 if (tr->trace_flags & (1 << index)) in trace_options_core_read()
8730 struct trace_array *tr; in trace_options_core_write() local
8735 get_tr_index(tr_index, &tr, &index); in trace_options_core_write()
8746 ret = set_tracer_flag(tr, 1 << index, val); in trace_options_core_write()
8781 static struct dentry *trace_options_init_dentry(struct trace_array *tr) in trace_options_init_dentry() argument
8785 if (tr->options) in trace_options_init_dentry()
8786 return tr->options; in trace_options_init_dentry()
8788 d_tracer = tracing_get_dentry(tr); in trace_options_init_dentry()
8792 tr->options = tracefs_create_dir("options", d_tracer); in trace_options_init_dentry()
8793 if (!tr->options) { in trace_options_init_dentry()
8798 return tr->options; in trace_options_init_dentry()
8802 create_trace_option_file(struct trace_array *tr, in create_trace_option_file() argument
8809 t_options = trace_options_init_dentry(tr); in create_trace_option_file()
8815 topt->tr = tr; in create_trace_option_file()
8823 create_trace_option_files(struct trace_array *tr, struct tracer *tracer) in create_trace_option_files() argument
8844 if (!trace_ok_for_array(tracer, tr)) in create_trace_option_files()
8847 for (i = 0; i < tr->nr_topts; i++) { in create_trace_option_files()
8849 if (WARN_ON_ONCE(tr->topts[i].tracer->flags == tracer->flags)) in create_trace_option_files()
8862 tr_topts = krealloc(tr->topts, sizeof(*tr->topts) * (tr->nr_topts + 1), in create_trace_option_files()
8869 tr->topts = tr_topts; in create_trace_option_files()
8870 tr->topts[tr->nr_topts].tracer = tracer; in create_trace_option_files()
8871 tr->topts[tr->nr_topts].topts = topts; in create_trace_option_files()
8872 tr->nr_topts++; in create_trace_option_files()
8875 create_trace_option_file(tr, &topts[cnt], flags, in create_trace_option_files()
8884 create_trace_option_core_file(struct trace_array *tr, in create_trace_option_core_file() argument
8889 t_options = trace_options_init_dentry(tr); in create_trace_option_core_file()
8894 (void *)&tr->trace_flags_index[index], in create_trace_option_core_file()
8898 static void create_trace_options_dir(struct trace_array *tr) in create_trace_options_dir() argument
8901 bool top_level = tr == &global_trace; in create_trace_options_dir()
8904 t_options = trace_options_init_dentry(tr); in create_trace_options_dir()
8911 create_trace_option_core_file(tr, trace_options[i], i); in create_trace_options_dir()
8919 struct trace_array *tr = filp->private_data; in rb_simple_read() local
8923 r = tracer_tracing_is_on(tr); in rb_simple_read()
8933 struct trace_array *tr = filp->private_data; in rb_simple_write() local
8934 struct trace_buffer *buffer = tr->array_buffer.buffer; in rb_simple_write()
8944 if (!!val == tracer_tracing_is_on(tr)) { in rb_simple_write()
8947 tracer_tracing_on(tr); in rb_simple_write()
8948 if (tr->current_trace->start) in rb_simple_write()
8949 tr->current_trace->start(tr); in rb_simple_write()
8951 tracer_tracing_off(tr); in rb_simple_write()
8952 if (tr->current_trace->stop) in rb_simple_write()
8953 tr->current_trace->stop(tr); in rb_simple_write()
8975 struct trace_array *tr = filp->private_data; in buffer_percent_read() local
8979 r = tr->buffer_percent; in buffer_percent_read()
8989 struct trace_array *tr = filp->private_data; in buffer_percent_write() local
9003 tr->buffer_percent = val; in buffer_percent_write()
9021 init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer);
9024 allocate_trace_buffer(struct trace_array *tr, struct array_buffer *buf, int size) in allocate_trace_buffer() argument
9028 rb_flags = tr->trace_flags & TRACE_ITER_OVERWRITE ? RB_FL_OVERWRITE : 0; in allocate_trace_buffer()
9030 buf->tr = tr; in allocate_trace_buffer()
9044 set_buffer_entries(&tr->array_buffer, in allocate_trace_buffer()
9045 ring_buffer_size(tr->array_buffer.buffer, 0)); in allocate_trace_buffer()
9050 static int allocate_trace_buffers(struct trace_array *tr, int size) in allocate_trace_buffers() argument
9054 ret = allocate_trace_buffer(tr, &tr->array_buffer, size); in allocate_trace_buffers()
9059 ret = allocate_trace_buffer(tr, &tr->max_buffer, in allocate_trace_buffers()
9062 ring_buffer_free(tr->array_buffer.buffer); in allocate_trace_buffers()
9063 tr->array_buffer.buffer = NULL; in allocate_trace_buffers()
9064 free_percpu(tr->array_buffer.data); in allocate_trace_buffers()
9065 tr->array_buffer.data = NULL; in allocate_trace_buffers()
9068 tr->allocated_snapshot = allocate_snapshot; in allocate_trace_buffers()
9090 static void free_trace_buffers(struct trace_array *tr) in free_trace_buffers() argument
9092 if (!tr) in free_trace_buffers()
9095 free_trace_buffer(&tr->array_buffer); in free_trace_buffers()
9098 free_trace_buffer(&tr->max_buffer); in free_trace_buffers()
9102 static void init_trace_flags_index(struct trace_array *tr) in init_trace_flags_index() argument
9108 tr->trace_flags_index[i] = i; in init_trace_flags_index()
9111 static void __update_tracer_options(struct trace_array *tr) in __update_tracer_options() argument
9116 add_tracer_options(tr, t); in __update_tracer_options()
9119 static void update_tracer_options(struct trace_array *tr) in update_tracer_options() argument
9122 __update_tracer_options(tr); in update_tracer_options()
9129 struct trace_array *tr, *found = NULL; in trace_array_find() local
9131 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_find()
9132 if (tr->name && strcmp(tr->name, instance) == 0) { in trace_array_find()
9133 found = tr; in trace_array_find()
9143 struct trace_array *tr; in trace_array_find_get() local
9146 tr = trace_array_find(instance); in trace_array_find_get()
9147 if (tr) in trace_array_find_get()
9148 tr->ref++; in trace_array_find_get()
9151 return tr; in trace_array_find_get()
9154 static int trace_array_create_dir(struct trace_array *tr) in trace_array_create_dir() argument
9158 tr->dir = tracefs_create_dir(tr->name, trace_instance_dir); in trace_array_create_dir()
9159 if (!tr->dir) in trace_array_create_dir()
9162 ret = event_trace_add_tracer(tr->dir, tr); in trace_array_create_dir()
9164 tracefs_remove(tr->dir); in trace_array_create_dir()
9168 init_tracer_tracefs(tr, tr->dir); in trace_array_create_dir()
9169 __update_tracer_options(tr); in trace_array_create_dir()
9176 struct trace_array *tr; in trace_array_create() local
9180 tr = kzalloc(sizeof(*tr), GFP_KERNEL); in trace_array_create()
9181 if (!tr) in trace_array_create()
9184 tr->name = kstrdup(name, GFP_KERNEL); in trace_array_create()
9185 if (!tr->name) in trace_array_create()
9188 if (!alloc_cpumask_var(&tr->tracing_cpumask, GFP_KERNEL)) in trace_array_create()
9191 tr->trace_flags = global_trace.trace_flags & ~ZEROED_TRACE_FLAGS; in trace_array_create()
9193 cpumask_copy(tr->tracing_cpumask, cpu_all_mask); in trace_array_create()
9195 raw_spin_lock_init(&tr->start_lock); in trace_array_create()
9197 tr->max_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; in trace_array_create()
9199 tr->current_trace = &nop_trace; in trace_array_create()
9201 INIT_LIST_HEAD(&tr->systems); in trace_array_create()
9202 INIT_LIST_HEAD(&tr->events); in trace_array_create()
9203 INIT_LIST_HEAD(&tr->hist_vars); in trace_array_create()
9204 INIT_LIST_HEAD(&tr->err_log); in trace_array_create()
9206 if (allocate_trace_buffers(tr, trace_buf_size) < 0) in trace_array_create()
9209 if (ftrace_allocate_ftrace_ops(tr) < 0) in trace_array_create()
9212 ftrace_init_trace_array(tr); in trace_array_create()
9214 init_trace_flags_index(tr); in trace_array_create()
9217 ret = trace_array_create_dir(tr); in trace_array_create()
9221 __trace_early_add_events(tr); in trace_array_create()
9223 list_add(&tr->list, &ftrace_trace_arrays); in trace_array_create()
9225 tr->ref++; in trace_array_create()
9227 return tr; in trace_array_create()
9230 ftrace_free_ftrace_ops(tr); in trace_array_create()
9231 free_trace_buffers(tr); in trace_array_create()
9232 free_cpumask_var(tr->tracing_cpumask); in trace_array_create()
9233 kfree(tr->name); in trace_array_create()
9234 kfree(tr); in trace_array_create()
9241 struct trace_array *tr; in instance_mkdir() local
9251 tr = trace_array_create(name); in instance_mkdir()
9253 ret = PTR_ERR_OR_ZERO(tr); in instance_mkdir()
9279 struct trace_array *tr; in trace_array_get_by_name() local
9284 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_get_by_name()
9285 if (tr->name && strcmp(tr->name, name) == 0) in trace_array_get_by_name()
9289 tr = trace_array_create(name); in trace_array_get_by_name()
9291 if (IS_ERR(tr)) in trace_array_get_by_name()
9292 tr = NULL; in trace_array_get_by_name()
9294 if (tr) in trace_array_get_by_name()
9295 tr->ref++; in trace_array_get_by_name()
9299 return tr; in trace_array_get_by_name()
9303 static int __remove_instance(struct trace_array *tr) in __remove_instance() argument
9308 if (tr->ref > 1 || (tr->current_trace && tr->trace_ref)) in __remove_instance()
9311 list_del(&tr->list); in __remove_instance()
9316 set_tracer_flag(tr, 1 << i, 0); in __remove_instance()
9319 tracing_set_nop(tr); in __remove_instance()
9320 clear_ftrace_function_probes(tr); in __remove_instance()
9321 event_trace_del_tracer(tr); in __remove_instance()
9322 ftrace_clear_pids(tr); in __remove_instance()
9323 ftrace_destroy_function_files(tr); in __remove_instance()
9324 tracefs_remove(tr->dir); in __remove_instance()
9325 free_percpu(tr->last_func_repeats); in __remove_instance()
9326 free_trace_buffers(tr); in __remove_instance()
9328 for (i = 0; i < tr->nr_topts; i++) { in __remove_instance()
9329 kfree(tr->topts[i].topts); in __remove_instance()
9331 kfree(tr->topts); in __remove_instance()
9333 free_cpumask_var(tr->tracing_cpumask); in __remove_instance()
9334 kfree(tr->name); in __remove_instance()
9335 kfree(tr); in __remove_instance()
9342 struct trace_array *tr; in trace_array_destroy() local
9354 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_destroy()
9355 if (tr == this_tr) { in trace_array_destroy()
9356 ret = __remove_instance(tr); in trace_array_destroy()
9370 struct trace_array *tr; in instance_rmdir() local
9377 tr = trace_array_find(name); in instance_rmdir()
9378 if (tr) in instance_rmdir()
9379 ret = __remove_instance(tr); in instance_rmdir()
9389 struct trace_array *tr; in create_trace_instances() local
9400 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in create_trace_instances()
9401 if (!tr->name) in create_trace_instances()
9403 if (MEM_FAIL(trace_array_create_dir(tr) < 0, in create_trace_instances()
9413 init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer) in init_tracer_tracefs() argument
9419 tr, &show_traces_fops); in init_tracer_tracefs()
9422 tr, &set_tracer_fops); in init_tracer_tracefs()
9425 tr, &tracing_cpumask_fops); in init_tracer_tracefs()
9428 tr, &tracing_iter_fops); in init_tracer_tracefs()
9431 tr, &tracing_fops); in init_tracer_tracefs()
9434 tr, &tracing_pipe_fops); in init_tracer_tracefs()
9437 tr, &tracing_entries_fops); in init_tracer_tracefs()
9440 tr, &tracing_total_entries_fops); in init_tracer_tracefs()
9443 tr, &tracing_free_buffer_fops); in init_tracer_tracefs()
9446 tr, &tracing_mark_fops); in init_tracer_tracefs()
9448 file = __find_event_file(tr, "ftrace", "print"); in init_tracer_tracefs()
9452 tr->trace_marker_file = file; in init_tracer_tracefs()
9455 tr, &tracing_mark_raw_fops); in init_tracer_tracefs()
9457 trace_create_file("trace_clock", TRACE_MODE_WRITE, d_tracer, tr, in init_tracer_tracefs()
9461 tr, &rb_simple_fops); in init_tracer_tracefs()
9463 trace_create_file("timestamp_mode", TRACE_MODE_READ, d_tracer, tr, in init_tracer_tracefs()
9466 tr->buffer_percent = 50; in init_tracer_tracefs()
9469 tr, &buffer_percent_fops); in init_tracer_tracefs()
9471 create_trace_options_dir(tr); in init_tracer_tracefs()
9473 trace_create_maxlat_file(tr, d_tracer); in init_tracer_tracefs()
9475 if (ftrace_create_function_files(tr, d_tracer)) in init_tracer_tracefs()
9480 tr, &snapshot_fops); in init_tracer_tracefs()
9484 tr, &tracing_err_log_fops); in init_tracer_tracefs()
9487 tracing_init_tracefs_percpu(tr, cpu); in init_tracer_tracefs()
9489 ftrace_init_tracefs(tr, d_tracer); in init_tracer_tracefs()
9523 struct trace_array *tr = &global_trace; in tracing_init_dentry() local
9531 if (tr->dir) in tracing_init_dentry()
9543 tr->dir = debugfs_create_automount("tracing", NULL, in tracing_init_dentry()
9785 iter->tr = &global_trace; in trace_init_global_iter()
9786 iter->trace = iter->tr->current_trace; in trace_init_global_iter()
9798 if (trace_clocks[iter->tr->clock_id].in_ns) in trace_init_global_iter()
9807 struct trace_array *tr = &global_trace; in ftrace_dump() local
9842 old_userobj = tr->trace_flags & TRACE_ITER_SYM_USEROBJ; in ftrace_dump()
9845 tr->trace_flags &= ~TRACE_ITER_SYM_USEROBJ; in ftrace_dump()
9904 tr->trace_flags |= old_userobj; in ftrace_dump()