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,
457 struct trace_array *tr; in trace_array_get() local
461 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_get()
462 if (tr == this_tr) { in trace_array_get()
463 tr->ref++; in trace_array_get()
499 int tracing_check_open_get_tr(struct trace_array *tr) in tracing_check_open_get_tr() argument
510 if (tr && trace_array_get(tr) < 0) in tracing_check_open_get_tr()
914 static inline void ftrace_trace_stack(struct trace_array *tr,
925 static inline void ftrace_trace_stack(struct trace_array *tr, in ftrace_trace_stack() argument
958 void tracer_tracing_on(struct trace_array *tr) in tracer_tracing_on() argument
960 if (tr->array_buffer.buffer) in tracer_tracing_on()
961 ring_buffer_record_on(tr->array_buffer.buffer); in tracer_tracing_on()
970 tr->buffer_disabled = 0; in tracer_tracing_on()
1101 static void tracing_snapshot_instance_cond(struct trace_array *tr, in tracing_snapshot_instance_cond() argument
1104 struct tracer *tracer = tr->current_trace; in tracing_snapshot_instance_cond()
1113 if (!tr->allocated_snapshot) { in tracing_snapshot_instance_cond()
1128 update_max_tr(tr, current, smp_processor_id(), cond_data); in tracing_snapshot_instance_cond()
1132 void tracing_snapshot_instance(struct trace_array *tr) in tracing_snapshot_instance() argument
1134 tracing_snapshot_instance_cond(tr, NULL); in tracing_snapshot_instance()
1153 struct trace_array *tr = &global_trace; in tracing_snapshot() local
1155 tracing_snapshot_instance(tr); in tracing_snapshot()
1172 void tracing_snapshot_cond(struct trace_array *tr, void *cond_data) in tracing_snapshot_cond() argument
1174 tracing_snapshot_instance_cond(tr, cond_data); in tracing_snapshot_cond()
1192 void *tracing_cond_snapshot_data(struct trace_array *tr) in tracing_cond_snapshot_data() argument
1197 arch_spin_lock(&tr->max_lock); in tracing_cond_snapshot_data()
1199 if (tr->cond_snapshot) in tracing_cond_snapshot_data()
1200 cond_data = tr->cond_snapshot->cond_data; in tracing_cond_snapshot_data()
1202 arch_spin_unlock(&tr->max_lock); in tracing_cond_snapshot_data()
1213 int tracing_alloc_snapshot_instance(struct trace_array *tr) in tracing_alloc_snapshot_instance() argument
1217 if (!tr->allocated_snapshot) { in tracing_alloc_snapshot_instance()
1220 ret = resize_buffer_duplicate_size(&tr->max_buffer, in tracing_alloc_snapshot_instance()
1221 &tr->array_buffer, RING_BUFFER_ALL_CPUS); in tracing_alloc_snapshot_instance()
1225 tr->allocated_snapshot = true; in tracing_alloc_snapshot_instance()
1231 static void free_snapshot(struct trace_array *tr) in free_snapshot() argument
1238 ring_buffer_resize(tr->max_buffer.buffer, 1, RING_BUFFER_ALL_CPUS); in free_snapshot()
1239 set_buffer_entries(&tr->max_buffer, 1); in free_snapshot()
1240 tracing_reset_online_cpus(&tr->max_buffer); in free_snapshot()
1241 tr->allocated_snapshot = false; in free_snapshot()
1256 struct trace_array *tr = &global_trace; in tracing_alloc_snapshot() local
1259 ret = tracing_alloc_snapshot_instance(tr); in tracing_alloc_snapshot()
1302 int tracing_snapshot_cond_enable(struct trace_array *tr, void *cond_data, in tracing_snapshot_cond_enable() argument
1317 ret = tracing_alloc_snapshot_instance(tr); in tracing_snapshot_cond_enable()
1321 if (tr->current_trace->use_max_tr) { in tracing_snapshot_cond_enable()
1334 if (tr->cond_snapshot) { in tracing_snapshot_cond_enable()
1340 arch_spin_lock(&tr->max_lock); in tracing_snapshot_cond_enable()
1341 tr->cond_snapshot = cond_snapshot; in tracing_snapshot_cond_enable()
1342 arch_spin_unlock(&tr->max_lock); in tracing_snapshot_cond_enable()
1366 int tracing_snapshot_cond_disable(struct trace_array *tr) in tracing_snapshot_cond_disable() argument
1371 arch_spin_lock(&tr->max_lock); in tracing_snapshot_cond_disable()
1373 if (!tr->cond_snapshot) in tracing_snapshot_cond_disable()
1376 kfree(tr->cond_snapshot); in tracing_snapshot_cond_disable()
1377 tr->cond_snapshot = NULL; in tracing_snapshot_cond_disable()
1380 arch_spin_unlock(&tr->max_lock); in tracing_snapshot_cond_disable()
1392 void tracing_snapshot_cond(struct trace_array *tr, void *cond_data) in tracing_snapshot_cond() argument
1409 void *tracing_cond_snapshot_data(struct trace_array *tr) in tracing_cond_snapshot_data() argument
1414 int tracing_snapshot_cond_enable(struct trace_array *tr, void *cond_data, cond_update_fn_t update) in tracing_snapshot_cond_enable() argument
1419 int tracing_snapshot_cond_disable(struct trace_array *tr) in tracing_snapshot_cond_disable() argument
1426 void tracer_tracing_off(struct trace_array *tr) in tracer_tracing_off() argument
1428 if (tr->array_buffer.buffer) in tracer_tracing_off()
1429 ring_buffer_record_off(tr->array_buffer.buffer); in tracer_tracing_off()
1438 tr->buffer_disabled = 1; in tracer_tracing_off()
1472 bool tracer_tracing_is_on(struct trace_array *tr) in tracer_tracing_is_on() argument
1474 if (tr->array_buffer.buffer) in tracer_tracing_is_on()
1475 return ring_buffer_record_is_on(tr->array_buffer.buffer); in tracer_tracing_is_on()
1476 return !tr->buffer_disabled; in tracer_tracing_is_on()
1557 bool trace_clock_in_ns(struct trace_array *tr) in trace_clock_in_ns() argument
1559 if (trace_clocks[tr->clock_id].in_ns) in trace_clock_in_ns()
1703 struct trace_array *tr = container_of(work, struct trace_array, in latency_fsnotify_workfn() local
1705 fsnotify_inode(tr->d_max_latency->d_inode, FS_MODIFY); in latency_fsnotify_workfn()
1710 struct trace_array *tr = container_of(iwork, struct trace_array, in latency_fsnotify_workfn_irq() local
1712 queue_work(fsnotify_wq, &tr->fsnotify_work); in latency_fsnotify_workfn_irq()
1715 static void trace_create_maxlat_file(struct trace_array *tr, in trace_create_maxlat_file() argument
1718 INIT_WORK(&tr->fsnotify_work, latency_fsnotify_workfn); in trace_create_maxlat_file()
1719 init_irq_work(&tr->fsnotify_irqwork, latency_fsnotify_workfn_irq); in trace_create_maxlat_file()
1720 tr->d_max_latency = trace_create_file("tracing_max_latency", in trace_create_maxlat_file()
1722 d_tracer, &tr->max_latency, in trace_create_maxlat_file()
1739 void latency_fsnotify(struct trace_array *tr) in latency_fsnotify() argument
1748 irq_work_queue(&tr->fsnotify_irqwork); in latency_fsnotify()
1754 #define trace_create_maxlat_file(tr, d_tracer) \ argument
1756 d_tracer, &tr->max_latency, &tracing_max_lat_fops)
1759 #define trace_create_maxlat_file(tr, d_tracer) do { } while (0) argument
1769 __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu) in __update_max_tr() argument
1771 struct array_buffer *trace_buf = &tr->array_buffer; in __update_max_tr()
1772 struct array_buffer *max_buf = &tr->max_buffer; in __update_max_tr()
1779 max_data->saved_latency = tr->max_latency; in __update_max_tr()
1800 latency_fsnotify(tr); in __update_max_tr()
1814 update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu, in update_max_tr() argument
1817 if (tr->stop_count) in update_max_tr()
1822 if (!tr->allocated_snapshot) { in update_max_tr()
1824 WARN_ON_ONCE(tr->current_trace != &nop_trace); in update_max_tr()
1828 arch_spin_lock(&tr->max_lock); in update_max_tr()
1831 if (ring_buffer_record_is_set_on(tr->array_buffer.buffer)) in update_max_tr()
1832 ring_buffer_record_on(tr->max_buffer.buffer); in update_max_tr()
1834 ring_buffer_record_off(tr->max_buffer.buffer); in update_max_tr()
1837 if (tr->cond_snapshot && !tr->cond_snapshot->update(tr, cond_data)) in update_max_tr()
1840 swap(tr->array_buffer.buffer, tr->max_buffer.buffer); in update_max_tr()
1842 __update_max_tr(tr, tsk, cpu); in update_max_tr()
1845 arch_spin_unlock(&tr->max_lock); in update_max_tr()
1857 update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu) in update_max_tr_single() argument
1861 if (tr->stop_count) in update_max_tr_single()
1865 if (!tr->allocated_snapshot) { in update_max_tr_single()
1867 WARN_ON_ONCE(tr->current_trace != &nop_trace); in update_max_tr_single()
1871 arch_spin_lock(&tr->max_lock); in update_max_tr_single()
1873 ret = ring_buffer_swap_cpu(tr->max_buffer.buffer, tr->array_buffer.buffer, cpu); in update_max_tr_single()
1882 trace_array_printk_buf(tr->max_buffer.buffer, _THIS_IP_, in update_max_tr_single()
1888 __update_max_tr(tr, tsk, cpu); in update_max_tr_single()
1889 arch_spin_unlock(&tr->max_lock); in update_max_tr_single()
1928 struct trace_array *tr = &global_trace; in run_tracer_selftest() local
1929 struct tracer *saved_tracer = tr->current_trace; in run_tracer_selftest()
1956 tracing_reset_online_cpus(&tr->array_buffer); in run_tracer_selftest()
1958 tr->current_trace = type; in run_tracer_selftest()
1964 ring_buffer_resize(tr->max_buffer.buffer, trace_buf_size, in run_tracer_selftest()
1966 tr->allocated_snapshot = true; in run_tracer_selftest()
1972 ret = type->selftest(type, tr); in run_tracer_selftest()
1974 tr->current_trace = saved_tracer; in run_tracer_selftest()
1982 tracing_reset_online_cpus(&tr->array_buffer); in run_tracer_selftest()
1986 tr->allocated_snapshot = false; in run_tracer_selftest()
1990 ring_buffer_resize(tr->max_buffer.buffer, 1, in run_tracer_selftest()
2052 static void add_tracer_options(struct trace_array *tr, struct tracer *t);
2185 struct trace_array *tr; in tracing_reset_all_online_cpus_unlocked() local
2189 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in tracing_reset_all_online_cpus_unlocked()
2190 if (!tr->clear_trace) in tracing_reset_all_online_cpus_unlocked()
2192 tr->clear_trace = false; in tracing_reset_all_online_cpus_unlocked()
2193 tracing_reset_online_cpus(&tr->array_buffer); in tracing_reset_all_online_cpus_unlocked()
2195 tracing_reset_online_cpus(&tr->max_buffer); in tracing_reset_all_online_cpus_unlocked()
2334 static void tracing_start_tr(struct trace_array *tr) in tracing_start_tr() argument
2343 if (tr->flags & TRACE_ARRAY_FL_GLOBAL) in tracing_start_tr()
2346 raw_spin_lock_irqsave(&tr->start_lock, flags); in tracing_start_tr()
2348 if (--tr->stop_count) { in tracing_start_tr()
2349 if (tr->stop_count < 0) { in tracing_start_tr()
2352 tr->stop_count = 0; in tracing_start_tr()
2357 buffer = tr->array_buffer.buffer; in tracing_start_tr()
2362 raw_spin_unlock_irqrestore(&tr->start_lock, flags); in tracing_start_tr()
2399 static void tracing_stop_tr(struct trace_array *tr) in tracing_stop_tr() argument
2405 if (tr->flags & TRACE_ARRAY_FL_GLOBAL) in tracing_stop_tr()
2408 raw_spin_lock_irqsave(&tr->start_lock, flags); in tracing_stop_tr()
2409 if (tr->stop_count++) in tracing_stop_tr()
2412 buffer = tr->array_buffer.buffer; in tracing_stop_tr()
2417 raw_spin_unlock_irqrestore(&tr->start_lock, flags); in tracing_stop_tr()
2789 struct trace_array *tr = trace_file->tr; in trace_event_buffer_lock_reserve() local
2792 *current_rb = tr->array_buffer.buffer; in trace_event_buffer_lock_reserve()
2794 if (!tr->no_filter_buffering_ref && in trace_event_buffer_lock_reserve()
2951 trace_buffer_unlock_commit_regs(file->tr, fbuffer->buffer, in trace_event_buffer_commit()
2970 void trace_buffer_unlock_commit_regs(struct trace_array *tr, in trace_buffer_unlock_commit_regs() argument
2984 ftrace_trace_stack(tr, buffer, trace_ctx, regs ? 0 : STACK_SKIP, regs); in trace_buffer_unlock_commit_regs()
2985 ftrace_trace_userstack(tr, buffer, trace_ctx); in trace_buffer_unlock_commit_regs()
2999 trace_function(struct trace_array *tr, unsigned long ip, unsigned long in trace_function() argument
3003 struct trace_buffer *buffer = tr->array_buffer.buffer; in trace_function()
3110 static inline void ftrace_trace_stack(struct trace_array *tr, in ftrace_trace_stack() argument
3115 if (!(tr->trace_flags & TRACE_ITER_STACKTRACE)) in ftrace_trace_stack()
3121 void __trace_stack(struct trace_array *tr, unsigned int trace_ctx, in __trace_stack() argument
3124 struct trace_buffer *buffer = tr->array_buffer.buffer; in __trace_stack()
3167 ftrace_trace_userstack(struct trace_array *tr, in ftrace_trace_userstack() argument
3174 if (!(tr->trace_flags & TRACE_ITER_USERSTACKTRACE)) in ftrace_trace_userstack()
3213 static void ftrace_trace_userstack(struct trace_array *tr, in ftrace_trace_userstack() argument
3230 void trace_last_func_repeats(struct trace_array *tr, in trace_last_func_repeats() argument
3234 struct trace_buffer *buffer = tr->array_buffer.buffer; in trace_last_func_repeats()
3377 struct trace_array *tr = &global_trace; in trace_vbprintk() local
3404 buffer = tr->array_buffer.buffer; in trace_vbprintk()
3417 ftrace_trace_stack(tr, buffer, trace_ctx, 6, NULL); in trace_vbprintk()
3490 int trace_array_vprintk(struct trace_array *tr, in trace_array_vprintk() argument
3493 return __trace_array_vprintk(tr->array_buffer.buffer, ip, fmt, args); in trace_array_vprintk()
3517 int trace_array_printk(struct trace_array *tr, in trace_array_printk() argument
3523 if (!tr) in trace_array_printk()
3527 if (tr == &global_trace) in trace_array_printk()
3530 if (!(tr->trace_flags & TRACE_ITER_PRINTK)) in trace_array_printk()
3534 ret = trace_array_vprintk(tr, ip, fmt, ap); in trace_array_printk()
3548 int trace_array_init_printk(struct trace_array *tr) in trace_array_init_printk() argument
3550 if (!tr) in trace_array_init_printk()
3554 if (tr == &global_trace) in trace_array_init_printk()
3689 if (!iter->tr || iter->fmt == static_fmt_buf) in trace_iter_expand_format()
3948 if (!iter->tr || iter->tr->trace_flags & TRACE_ITER_HASH_PTR) in trace_event_format()
4109 struct trace_array *tr = iter->tr; in s_start() local
4122 if (unlikely(tr->current_trace && iter->trace->name != tr->current_trace->name)) in s_start()
4123 *iter->trace = *tr->current_trace; in s_start()
4216 unsigned long trace_total_entries_cpu(struct trace_array *tr, int cpu) in trace_total_entries_cpu() argument
4220 if (!tr) in trace_total_entries_cpu()
4221 tr = &global_trace; in trace_total_entries_cpu()
4223 get_total_entries_cpu(&tr->array_buffer, &total, &entries, cpu); in trace_total_entries_cpu()
4228 unsigned long trace_total_entries(struct trace_array *tr) in trace_total_entries() argument
4232 if (!tr) in trace_total_entries()
4233 tr = &global_trace; in trace_total_entries()
4235 get_total_entries(&tr->array_buffer, &total, &entries); in trace_total_entries()
4353 struct trace_array *tr = iter->tr; in test_cpu_buff_start() local
4355 if (!(tr->trace_flags & TRACE_ITER_ANNOTATE)) in test_cpu_buff_start()
4379 struct trace_array *tr = iter->tr; in print_trace_fmt() local
4381 unsigned long sym_flags = (tr->trace_flags & TRACE_ITER_SYM_MASK); in print_trace_fmt()
4391 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { in print_trace_fmt()
4411 struct trace_array *tr = iter->tr; in print_raw_fmt() local
4418 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) in print_raw_fmt()
4436 struct trace_array *tr = iter->tr; in print_hex_fmt() local
4444 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { in print_hex_fmt()
4466 struct trace_array *tr = iter->tr; in print_bin_fmt() local
4473 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { in print_bin_fmt()
4522 struct trace_array *tr = iter->tr; in print_trace_line() local
4523 unsigned long trace_flags = tr->trace_flags; in print_trace_line()
4573 struct trace_array *tr = iter->tr; in trace_latency_header() local
4582 if (!(tr->trace_flags & TRACE_ITER_VERBOSE)) in trace_latency_header()
4589 struct trace_array *tr = iter->tr; in trace_default_header() local
4590 unsigned long trace_flags = tr->trace_flags; in trace_default_header()
4650 if (iter->tr->allocated_snapshot) in print_snapshot_help()
4672 if (iter->tr) { in s_show()
4731 struct trace_array *tr = inode->i_private; in __tracing_open() local
4778 *iter->trace = *tr->current_trace; in __tracing_open()
4783 iter->tr = tr; in __tracing_open()
4787 if (tr->current_trace->print_max || snapshot) in __tracing_open()
4788 iter->array_buffer = &tr->max_buffer; in __tracing_open()
4791 iter->array_buffer = &tr->array_buffer; in __tracing_open()
4806 if (trace_clocks[tr->clock_id].in_ns) in __tracing_open()
4813 if (!iter->snapshot && (tr->trace_flags & TRACE_ITER_PAUSE_ON_TRACE)) in __tracing_open()
4814 tracing_stop_tr(tr); in __tracing_open()
4874 struct trace_array *tr = inode->i_private; in tracing_open_generic_tr() local
4877 ret = tracing_check_open_get_tr(tr); in tracing_open_generic_tr()
4894 struct trace_array *tr = inode->i_private; in tracing_release() local
4900 trace_array_put(tr); in tracing_release()
4916 if (!iter->snapshot && tr->stop_count) in tracing_release()
4918 tracing_start_tr(tr); in tracing_release()
4920 __trace_array_put(tr); in tracing_release()
4937 struct trace_array *tr = inode->i_private; in tracing_release_generic_tr() local
4939 trace_array_put(tr); in tracing_release_generic_tr()
4945 struct trace_array *tr = inode->i_private; in tracing_single_release_tr() local
4947 trace_array_put(tr); in tracing_single_release_tr()
4954 struct trace_array *tr = inode->i_private; in tracing_open() local
4958 ret = tracing_check_open_get_tr(tr); in tracing_open()
4965 struct array_buffer *trace_buf = &tr->array_buffer; in tracing_open()
4968 if (tr->current_trace->print_max) in tracing_open()
4969 trace_buf = &tr->max_buffer; in tracing_open()
4982 else if (tr->trace_flags & TRACE_ITER_LATENCY_FMT) in tracing_open()
4987 trace_array_put(tr); in tracing_open()
4998 trace_ok_for_array(struct tracer *t, struct trace_array *tr) in trace_ok_for_array() argument
5000 return (tr->flags & TRACE_ARRAY_FL_GLOBAL) || t->allow_instances; in trace_ok_for_array()
5005 get_tracer_for_array(struct trace_array *tr, struct tracer *t) in get_tracer_for_array() argument
5007 while (t && !trace_ok_for_array(t, tr)) in get_tracer_for_array()
5016 struct trace_array *tr = m->private; in t_next() local
5022 t = get_tracer_for_array(tr, t->next); in t_next()
5029 struct trace_array *tr = m->private; in t_start() local
5035 t = get_tracer_for_array(tr, trace_types); in t_start()
5072 struct trace_array *tr = inode->i_private; in show_traces_open() local
5076 ret = tracing_check_open_get_tr(tr); in show_traces_open()
5082 trace_array_put(tr); in show_traces_open()
5087 m->private = tr; in show_traces_open()
5094 struct trace_array *tr = inode->i_private; in show_traces_release() local
5096 trace_array_put(tr); in show_traces_release()
5138 struct trace_array *tr = file_inode(filp)->i_private; in tracing_cpumask_read() local
5143 cpumask_pr_args(tr->tracing_cpumask)) + 1; in tracing_cpumask_read()
5149 cpumask_pr_args(tr->tracing_cpumask)); in tracing_cpumask_read()
5162 int tracing_set_cpumask(struct trace_array *tr, in tracing_set_cpumask() argument
5167 if (!tr) in tracing_set_cpumask()
5171 arch_spin_lock(&tr->max_lock); in tracing_set_cpumask()
5177 if (cpumask_test_cpu(cpu, tr->tracing_cpumask) && in tracing_set_cpumask()
5179 atomic_inc(&per_cpu_ptr(tr->array_buffer.data, cpu)->disabled); in tracing_set_cpumask()
5180 ring_buffer_record_disable_cpu(tr->array_buffer.buffer, cpu); in tracing_set_cpumask()
5182 if (!cpumask_test_cpu(cpu, tr->tracing_cpumask) && in tracing_set_cpumask()
5184 atomic_dec(&per_cpu_ptr(tr->array_buffer.data, cpu)->disabled); in tracing_set_cpumask()
5185 ring_buffer_record_enable_cpu(tr->array_buffer.buffer, cpu); in tracing_set_cpumask()
5188 arch_spin_unlock(&tr->max_lock); in tracing_set_cpumask()
5191 cpumask_copy(tr->tracing_cpumask, tracing_cpumask_new); in tracing_set_cpumask()
5200 struct trace_array *tr = file_inode(filp)->i_private; in tracing_cpumask_write() local
5211 err = tracing_set_cpumask(tr, tracing_cpumask_new); in tracing_cpumask_write()
5236 struct trace_array *tr = m->private; in tracing_trace_options_show() local
5241 tracer_flags = tr->current_trace->flags->val; in tracing_trace_options_show()
5242 trace_opts = tr->current_trace->flags->opts; in tracing_trace_options_show()
5245 if (tr->trace_flags & (1 << i)) in tracing_trace_options_show()
5262 static int __set_tracer_option(struct trace_array *tr, in __set_tracer_option() argument
5269 ret = trace->set_flag(tr, tracer_flags->val, opts->bit, !neg); in __set_tracer_option()
5281 static int set_tracer_option(struct trace_array *tr, char *cmp, int neg) in set_tracer_option() argument
5283 struct tracer *trace = tr->current_trace; in set_tracer_option()
5292 return __set_tracer_option(tr, trace->flags, opts, neg); in set_tracer_option()
5307 int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled) in set_tracer_flag() argument
5316 if (!!(tr->trace_flags & mask) == !!enabled) in set_tracer_flag()
5320 if (tr->current_trace->flag_changed) in set_tracer_flag()
5321 if (tr->current_trace->flag_changed(tr, mask, !!enabled)) in set_tracer_flag()
5325 tr->trace_flags |= mask; in set_tracer_flag()
5327 tr->trace_flags &= ~mask; in set_tracer_flag()
5347 tr->trace_flags &= ~TRACE_ITER_RECORD_TGID; in set_tracer_flag()
5355 trace_event_follow_fork(tr, enabled); in set_tracer_flag()
5358 ftrace_pid_follow_fork(tr, enabled); in set_tracer_flag()
5361 ring_buffer_change_overwrite(tr->array_buffer.buffer, enabled); in set_tracer_flag()
5363 ring_buffer_change_overwrite(tr->max_buffer.buffer, enabled); in set_tracer_flag()
5375 int trace_set_options(struct trace_array *tr, char *option) in trace_set_options() argument
5397 ret = set_tracer_option(tr, cmp, neg); in trace_set_options()
5399 ret = set_tracer_flag(tr, 1 << ret, !neg); in trace_set_options()
5439 struct trace_array *tr = m->private; in tracing_trace_options_write() local
5451 ret = trace_set_options(tr, buf); in tracing_trace_options_write()
5462 struct trace_array *tr = inode->i_private; in tracing_trace_options_open() local
5465 ret = tracing_check_open_get_tr(tr); in tracing_trace_options_open()
5471 trace_array_put(tr); in tracing_trace_options_open()
6168 struct trace_array *tr = filp->private_data; in tracing_set_trace_read() local
6173 r = sprintf(buf, "%s\n", tr->current_trace->name); in tracing_set_trace_read()
6179 int tracer_init(struct tracer *t, struct trace_array *tr) in tracer_init() argument
6181 tracing_reset_online_cpus(&tr->array_buffer); in tracer_init()
6182 return t->init(tr); in tracer_init()
6221 static int __tracing_resize_ring_buffer(struct trace_array *tr, in __tracing_resize_ring_buffer() argument
6234 if (!tr->array_buffer.buffer) in __tracing_resize_ring_buffer()
6237 ret = ring_buffer_resize(tr->array_buffer.buffer, size, cpu); in __tracing_resize_ring_buffer()
6242 if (!(tr->flags & TRACE_ARRAY_FL_GLOBAL) || in __tracing_resize_ring_buffer()
6243 !tr->current_trace->use_max_tr) in __tracing_resize_ring_buffer()
6246 ret = ring_buffer_resize(tr->max_buffer.buffer, size, cpu); in __tracing_resize_ring_buffer()
6248 int r = resize_buffer_duplicate_size(&tr->array_buffer, in __tracing_resize_ring_buffer()
6249 &tr->array_buffer, cpu); in __tracing_resize_ring_buffer()
6272 set_buffer_entries(&tr->max_buffer, size); in __tracing_resize_ring_buffer()
6274 per_cpu_ptr(tr->max_buffer.data, cpu)->entries = size; in __tracing_resize_ring_buffer()
6280 set_buffer_entries(&tr->array_buffer, size); in __tracing_resize_ring_buffer()
6282 per_cpu_ptr(tr->array_buffer.data, cpu)->entries = size; in __tracing_resize_ring_buffer()
6287 ssize_t tracing_resize_ring_buffer(struct trace_array *tr, in tracing_resize_ring_buffer() argument
6302 ret = __tracing_resize_ring_buffer(tr, size, cpu_id); in tracing_resize_ring_buffer()
6339 create_trace_option_files(struct trace_array *tr, struct tracer *tracer);
6345 static void tracing_set_nop(struct trace_array *tr) in tracing_set_nop() argument
6347 if (tr->current_trace == &nop_trace) in tracing_set_nop()
6350 tr->current_trace->enabled--; in tracing_set_nop()
6352 if (tr->current_trace->reset) in tracing_set_nop()
6353 tr->current_trace->reset(tr); in tracing_set_nop()
6355 tr->current_trace = &nop_trace; in tracing_set_nop()
6360 static void add_tracer_options(struct trace_array *tr, struct tracer *t) in add_tracer_options() argument
6363 if (!tr->dir) in add_tracer_options()
6370 create_trace_option_files(tr, t); in add_tracer_options()
6373 int tracing_set_tracer(struct trace_array *tr, const char *buf) in tracing_set_tracer() argument
6384 ret = __tracing_resize_ring_buffer(tr, trace_buf_size, in tracing_set_tracer()
6399 if (t == tr->current_trace) in tracing_set_tracer()
6405 arch_spin_lock(&tr->max_lock); in tracing_set_tracer()
6406 if (tr->cond_snapshot) in tracing_set_tracer()
6408 arch_spin_unlock(&tr->max_lock); in tracing_set_tracer()
6422 if (!trace_ok_for_array(t, tr)) { in tracing_set_tracer()
6428 if (tr->trace_ref) { in tracing_set_tracer()
6435 tr->current_trace->enabled--; in tracing_set_tracer()
6437 if (tr->current_trace->reset) in tracing_set_tracer()
6438 tr->current_trace->reset(tr); in tracing_set_tracer()
6441 had_max_tr = tr->current_trace->use_max_tr; in tracing_set_tracer()
6444 tr->current_trace = &nop_trace; in tracing_set_tracer()
6455 free_snapshot(tr); in tracing_set_tracer()
6458 if (t->use_max_tr && !tr->allocated_snapshot) { in tracing_set_tracer()
6459 ret = tracing_alloc_snapshot_instance(tr); in tracing_set_tracer()
6464 tr->current_trace = &nop_trace; in tracing_set_tracer()
6468 ret = tracer_init(t, tr); in tracing_set_tracer()
6473 tr->current_trace = t; in tracing_set_tracer()
6474 tr->current_trace->enabled++; in tracing_set_tracer()
6475 trace_branch_enable(tr); in tracing_set_tracer()
6486 struct trace_array *tr = filp->private_data; in tracing_set_trace_write() local
6504 err = tracing_set_tracer(tr, name); in tracing_set_trace_write()
6554 struct trace_array *tr = filp->private_data; in tracing_thresh_write() local
6562 if (tr->current_trace->update_thresh) { in tracing_thresh_write()
6563 ret = tr->current_trace->update_thresh(tr); in tracing_thresh_write()
6595 struct trace_array *tr = inode->i_private; in tracing_open_pipe() local
6599 ret = tracing_check_open_get_tr(tr); in tracing_open_pipe()
6609 __trace_array_put(tr); in tracing_open_pipe()
6614 iter->trace = tr->current_trace; in tracing_open_pipe()
6624 if (tr->trace_flags & TRACE_ITER_LATENCY_FMT) in tracing_open_pipe()
6628 if (trace_clocks[tr->clock_id].in_ns) in tracing_open_pipe()
6631 iter->tr = tr; in tracing_open_pipe()
6632 iter->array_buffer = &tr->array_buffer; in tracing_open_pipe()
6642 tr->trace_ref++; in tracing_open_pipe()
6649 __trace_array_put(tr); in tracing_open_pipe()
6657 struct trace_array *tr = inode->i_private; in tracing_release_pipe() local
6661 tr->trace_ref--; in tracing_release_pipe()
6673 trace_array_put(tr); in tracing_release_pipe()
6681 struct trace_array *tr = iter->tr; in trace_poll() local
6687 if (tr->trace_flags & TRACE_ITER_BLOCK) in trace_poll()
6694 filp, poll_table, iter->tr->buffer_percent); in trace_poll()
6726 if (!tracer_tracing_is_on(iter->tr) && iter->pos) in tracing_wait_pipe()
6982 struct trace_array *tr = inode->i_private; in tracing_entries_read() local
7000 size = per_cpu_ptr(tr->array_buffer.data, cpu)->entries; in tracing_entries_read()
7001 if (size != per_cpu_ptr(tr->array_buffer.data, cpu)->entries) { in tracing_entries_read()
7017 r = sprintf(buf, "%lu\n", per_cpu_ptr(tr->array_buffer.data, cpu)->entries >> 10); in tracing_entries_read()
7030 struct trace_array *tr = inode->i_private; in tracing_entries_write() local
7044 ret = tracing_resize_ring_buffer(tr, val, tracing_get_cpu(inode)); in tracing_entries_write()
7057 struct trace_array *tr = filp->private_data; in tracing_total_entries_read() local
7064 size += per_cpu_ptr(tr->array_buffer.data, cpu)->entries >> 10; in tracing_total_entries_read()
7094 struct trace_array *tr = inode->i_private; in tracing_free_buffer_release() local
7097 if (tr->trace_flags & TRACE_ITER_STOP_ON_FREE) in tracing_free_buffer_release()
7098 tracer_tracing_off(tr); in tracing_free_buffer_release()
7100 tracing_resize_ring_buffer(tr, 0, RING_BUFFER_ALL_CPUS); in tracing_free_buffer_release()
7102 trace_array_put(tr); in tracing_free_buffer_release()
7111 struct trace_array *tr = filp->private_data; in tracing_mark_write() local
7127 if (!(tr->trace_flags & TRACE_ITER_MARKERS)) in tracing_mark_write()
7141 buffer = tr->array_buffer.buffer; in tracing_mark_write()
7159 if (tr->trace_marker_file && !list_empty(&tr->trace_marker_file->triggers)) { in tracing_mark_write()
7162 tt = event_triggers_call(tr->trace_marker_file, buffer, entry, event); in tracing_mark_write()
7176 event_triggers_post_call(tr->trace_marker_file, tt); in tracing_mark_write()
7188 struct trace_array *tr = filp->private_data; in tracing_mark_raw_write() local
7201 if (!(tr->trace_flags & TRACE_ITER_MARKERS)) in tracing_mark_raw_write()
7217 buffer = tr->array_buffer.buffer; in tracing_mark_raw_write()
7241 struct trace_array *tr = m->private; in tracing_clock_show() local
7247 i == tr->clock_id ? "[" : "", trace_clocks[i].name, in tracing_clock_show()
7248 i == tr->clock_id ? "]" : ""); in tracing_clock_show()
7254 int tracing_set_clock(struct trace_array *tr, const char *clockstr) in tracing_set_clock() argument
7267 tr->clock_id = i; in tracing_set_clock()
7269 ring_buffer_set_clock(tr->array_buffer.buffer, trace_clocks[i].func); in tracing_set_clock()
7275 tracing_reset_online_cpus(&tr->array_buffer); in tracing_set_clock()
7278 if (tr->max_buffer.buffer) in tracing_set_clock()
7279 ring_buffer_set_clock(tr->max_buffer.buffer, trace_clocks[i].func); in tracing_set_clock()
7280 tracing_reset_online_cpus(&tr->max_buffer); in tracing_set_clock()
7292 struct trace_array *tr = m->private; in tracing_clock_write() local
7307 ret = tracing_set_clock(tr, clockstr); in tracing_clock_write()
7318 struct trace_array *tr = inode->i_private; in tracing_clock_open() local
7321 ret = tracing_check_open_get_tr(tr); in tracing_clock_open()
7327 trace_array_put(tr); in tracing_clock_open()
7334 struct trace_array *tr = m->private; in tracing_time_stamp_mode_show() local
7338 if (ring_buffer_time_stamp_abs(tr->array_buffer.buffer)) in tracing_time_stamp_mode_show()
7350 struct trace_array *tr = inode->i_private; in tracing_time_stamp_mode_open() local
7353 ret = tracing_check_open_get_tr(tr); in tracing_time_stamp_mode_open()
7359 trace_array_put(tr); in tracing_time_stamp_mode_open()
7375 int tracing_set_filter_buffering(struct trace_array *tr, bool set) in tracing_set_filter_buffering() argument
7381 if (set && tr->no_filter_buffering_ref++) in tracing_set_filter_buffering()
7385 if (WARN_ON_ONCE(!tr->no_filter_buffering_ref)) { in tracing_set_filter_buffering()
7390 --tr->no_filter_buffering_ref; in tracing_set_filter_buffering()
7408 struct trace_array *tr = inode->i_private; in tracing_snapshot_open() local
7413 ret = tracing_check_open_get_tr(tr); in tracing_snapshot_open()
7434 iter->tr = tr; in tracing_snapshot_open()
7435 iter->array_buffer = &tr->max_buffer; in tracing_snapshot_open()
7442 trace_array_put(tr); in tracing_snapshot_open()
7453 struct trace_array *tr = iter->tr; in tracing_snapshot_write() local
7467 if (tr->current_trace->use_max_tr) { in tracing_snapshot_write()
7473 arch_spin_lock(&tr->max_lock); in tracing_snapshot_write()
7474 if (tr->cond_snapshot) in tracing_snapshot_write()
7476 arch_spin_unlock(&tr->max_lock); in tracing_snapshot_write()
7487 if (tr->allocated_snapshot) in tracing_snapshot_write()
7488 free_snapshot(tr); in tracing_snapshot_write()
7498 if (tr->allocated_snapshot) in tracing_snapshot_write()
7499 ret = resize_buffer_duplicate_size(&tr->max_buffer, in tracing_snapshot_write()
7500 &tr->array_buffer, iter->cpu_file); in tracing_snapshot_write()
7502 ret = tracing_alloc_snapshot_instance(tr); in tracing_snapshot_write()
7508 update_max_tr(tr, current, smp_processor_id(), NULL); in tracing_snapshot_write()
7510 update_max_tr_single(tr, current, iter->cpu_file); in tracing_snapshot_write()
7514 if (tr->allocated_snapshot) { in tracing_snapshot_write()
7516 tracing_reset_online_cpus(&tr->max_buffer); in tracing_snapshot_write()
7518 tracing_reset_cpu(&tr->max_buffer, iter->cpu_file); in tracing_snapshot_write()
7575 info->iter.array_buffer = &info->iter.tr->max_buffer; in snapshot_raw_open()
7811 static struct tracing_log_err *get_tracing_log_err(struct trace_array *tr, in get_tracing_log_err() argument
7817 if (tr->n_err_log_entries < TRACING_LOG_ERRS_MAX) { in get_tracing_log_err()
7820 tr->n_err_log_entries++; in get_tracing_log_err()
7827 err = list_first_entry(&tr->err_log, struct tracing_log_err, list); in get_tracing_log_err()
7888 void tracing_log_err(struct trace_array *tr, in tracing_log_err() argument
7895 if (!tr) in tracing_log_err()
7896 tr = &global_trace; in tracing_log_err()
7901 err = get_tracing_log_err(tr, len); in tracing_log_err()
7915 list_add_tail(&err->list, &tr->err_log); in tracing_log_err()
7919 static void clear_tracing_err_log(struct trace_array *tr) in clear_tracing_err_log() argument
7924 list_for_each_entry_safe(err, next, &tr->err_log, list) { in clear_tracing_err_log()
7929 tr->n_err_log_entries = 0; in clear_tracing_err_log()
7935 struct trace_array *tr = m->private; in tracing_err_log_seq_start() local
7939 return seq_list_start(&tr->err_log, *pos); in tracing_err_log_seq_start()
7944 struct trace_array *tr = m->private; in tracing_err_log_seq_next() local
7946 return seq_list_next(v, &tr->err_log, pos); in tracing_err_log_seq_next()
7993 struct trace_array *tr = inode->i_private; in tracing_err_log_open() local
7996 ret = tracing_check_open_get_tr(tr); in tracing_err_log_open()
8002 clear_tracing_err_log(tr); in tracing_err_log_open()
8008 m->private = tr; in tracing_err_log_open()
8010 trace_array_put(tr); in tracing_err_log_open()
8025 struct trace_array *tr = inode->i_private; in tracing_err_log_release() local
8027 trace_array_put(tr); in tracing_err_log_release()
8045 struct trace_array *tr = inode->i_private; in tracing_buffers_open() local
8049 ret = tracing_check_open_get_tr(tr); in tracing_buffers_open()
8055 trace_array_put(tr); in tracing_buffers_open()
8061 info->iter.tr = tr; in tracing_buffers_open()
8063 info->iter.trace = tr->current_trace; in tracing_buffers_open()
8064 info->iter.array_buffer = &tr->array_buffer; in tracing_buffers_open()
8071 tr->trace_ref++; in tracing_buffers_open()
8077 trace_array_put(tr); in tracing_buffers_open()
8104 if (iter->snapshot && iter->tr->current_trace->use_max_tr) in tracing_buffers_read()
8172 iter->tr->trace_ref--; in tracing_buffers_release()
8174 __trace_array_put(iter->tr); in tracing_buffers_release()
8268 if (iter->snapshot && iter->tr->current_trace->use_max_tr) in tracing_buffers_splice_read()
8346 ret = wait_on_pipe(iter, iter->tr->buffer_percent); in tracing_buffers_splice_read()
8351 if (!tracer_tracing_is_on(iter->tr)) in tracing_buffers_splice_read()
8405 struct trace_array *tr = inode->i_private; in tracing_stats_read() local
8406 struct array_buffer *trace_buf = &tr->array_buffer; in tracing_stats_read()
8431 if (trace_clocks[tr->clock_id].in_ns) { in tracing_stats_read()
8506 struct trace_array *tr, struct ftrace_probe_ops *ops, in ftrace_snapshot() argument
8509 tracing_snapshot_instance(tr); in ftrace_snapshot()
8514 struct trace_array *tr, struct ftrace_probe_ops *ops, in ftrace_count_snapshot() argument
8531 tracing_snapshot_instance(tr); in ftrace_count_snapshot()
8557 ftrace_snapshot_init(struct ftrace_probe_ops *ops, struct trace_array *tr, in ftrace_snapshot_init() argument
8573 ftrace_snapshot_free(struct ftrace_probe_ops *ops, struct trace_array *tr, in ftrace_snapshot_free() argument
8601 ftrace_trace_snapshot_callback(struct trace_array *tr, struct ftrace_hash *hash, in ftrace_trace_snapshot_callback() argument
8609 if (!tr) in ftrace_trace_snapshot_callback()
8619 return unregister_ftrace_function_probe_func(glob+1, tr, ops); in ftrace_trace_snapshot_callback()
8638 ret = tracing_alloc_snapshot_instance(tr); in ftrace_trace_snapshot_callback()
8642 ret = register_ftrace_function_probe(glob, tr, ops, count); in ftrace_trace_snapshot_callback()
8661 static struct dentry *tracing_get_dentry(struct trace_array *tr) in tracing_get_dentry() argument
8663 if (WARN_ON(!tr->dir)) in tracing_get_dentry()
8667 if (tr->flags & TRACE_ARRAY_FL_GLOBAL) in tracing_get_dentry()
8671 return tr->dir; in tracing_get_dentry()
8674 static struct dentry *tracing_dentry_percpu(struct trace_array *tr, int cpu) in tracing_dentry_percpu() argument
8678 if (tr->percpu_dir) in tracing_dentry_percpu()
8679 return tr->percpu_dir; in tracing_dentry_percpu()
8681 d_tracer = tracing_get_dentry(tr); in tracing_dentry_percpu()
8685 tr->percpu_dir = tracefs_create_dir("per_cpu", d_tracer); in tracing_dentry_percpu()
8687 MEM_FAIL(!tr->percpu_dir, in tracing_dentry_percpu()
8690 return tr->percpu_dir; in tracing_dentry_percpu()
8705 tracing_init_tracefs_percpu(struct trace_array *tr, long cpu) in tracing_init_tracefs_percpu() argument
8707 struct dentry *d_percpu = tracing_dentry_percpu(tr, cpu); in tracing_init_tracefs_percpu()
8723 tr, cpu, &tracing_pipe_fops); in tracing_init_tracefs_percpu()
8727 tr, cpu, &tracing_fops); in tracing_init_tracefs_percpu()
8730 tr, cpu, &tracing_buffers_fops); in tracing_init_tracefs_percpu()
8733 tr, cpu, &tracing_stats_fops); in tracing_init_tracefs_percpu()
8736 tr, cpu, &tracing_entries_fops); in tracing_init_tracefs_percpu()
8740 tr, cpu, &snapshot_fops); in tracing_init_tracefs_percpu()
8743 tr, cpu, &snapshot_raw_fops); in tracing_init_tracefs_percpu()
8784 ret = __set_tracer_option(topt->tr, topt->flags, in trace_options_write()
8842 struct trace_array *tr; in trace_options_core_read() local
8846 get_tr_index(tr_index, &tr, &index); in trace_options_core_read()
8848 if (tr->trace_flags & (1 << index)) in trace_options_core_read()
8861 struct trace_array *tr; in trace_options_core_write() local
8866 get_tr_index(tr_index, &tr, &index); in trace_options_core_write()
8877 ret = set_tracer_flag(tr, 1 << index, val); in trace_options_core_write()
8912 static struct dentry *trace_options_init_dentry(struct trace_array *tr) in trace_options_init_dentry() argument
8916 if (tr->options) in trace_options_init_dentry()
8917 return tr->options; in trace_options_init_dentry()
8919 d_tracer = tracing_get_dentry(tr); in trace_options_init_dentry()
8923 tr->options = tracefs_create_dir("options", d_tracer); in trace_options_init_dentry()
8924 if (!tr->options) { in trace_options_init_dentry()
8929 return tr->options; in trace_options_init_dentry()
8933 create_trace_option_file(struct trace_array *tr, in create_trace_option_file() argument
8940 t_options = trace_options_init_dentry(tr); in create_trace_option_file()
8946 topt->tr = tr; in create_trace_option_file()
8954 create_trace_option_files(struct trace_array *tr, struct tracer *tracer) in create_trace_option_files() argument
8975 if (!trace_ok_for_array(tracer, tr)) in create_trace_option_files()
8978 for (i = 0; i < tr->nr_topts; i++) { in create_trace_option_files()
8980 if (WARN_ON_ONCE(tr->topts[i].tracer->flags == tracer->flags)) in create_trace_option_files()
8993 tr_topts = krealloc(tr->topts, sizeof(*tr->topts) * (tr->nr_topts + 1), in create_trace_option_files()
9000 tr->topts = tr_topts; in create_trace_option_files()
9001 tr->topts[tr->nr_topts].tracer = tracer; in create_trace_option_files()
9002 tr->topts[tr->nr_topts].topts = topts; in create_trace_option_files()
9003 tr->nr_topts++; in create_trace_option_files()
9006 create_trace_option_file(tr, &topts[cnt], flags, in create_trace_option_files()
9015 create_trace_option_core_file(struct trace_array *tr, in create_trace_option_core_file() argument
9020 t_options = trace_options_init_dentry(tr); in create_trace_option_core_file()
9025 (void *)&tr->trace_flags_index[index], in create_trace_option_core_file()
9029 static void create_trace_options_dir(struct trace_array *tr) in create_trace_options_dir() argument
9032 bool top_level = tr == &global_trace; in create_trace_options_dir()
9035 t_options = trace_options_init_dentry(tr); in create_trace_options_dir()
9042 create_trace_option_core_file(tr, trace_options[i], i); in create_trace_options_dir()
9050 struct trace_array *tr = filp->private_data; in rb_simple_read() local
9054 r = tracer_tracing_is_on(tr); in rb_simple_read()
9064 struct trace_array *tr = filp->private_data; in rb_simple_write() local
9065 struct trace_buffer *buffer = tr->array_buffer.buffer; in rb_simple_write()
9075 if (!!val == tracer_tracing_is_on(tr)) { in rb_simple_write()
9078 tracer_tracing_on(tr); in rb_simple_write()
9079 if (tr->current_trace->start) in rb_simple_write()
9080 tr->current_trace->start(tr); in rb_simple_write()
9082 tracer_tracing_off(tr); in rb_simple_write()
9083 if (tr->current_trace->stop) in rb_simple_write()
9084 tr->current_trace->stop(tr); in rb_simple_write()
9108 struct trace_array *tr = filp->private_data; in buffer_percent_read() local
9112 r = tr->buffer_percent; in buffer_percent_read()
9122 struct trace_array *tr = filp->private_data; in buffer_percent_write() local
9136 tr->buffer_percent = val; in buffer_percent_write()
9154 init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer);
9157 allocate_trace_buffer(struct trace_array *tr, struct array_buffer *buf, int size) in allocate_trace_buffer() argument
9161 rb_flags = tr->trace_flags & TRACE_ITER_OVERWRITE ? RB_FL_OVERWRITE : 0; in allocate_trace_buffer()
9163 buf->tr = tr; in allocate_trace_buffer()
9177 set_buffer_entries(&tr->array_buffer, in allocate_trace_buffer()
9178 ring_buffer_size(tr->array_buffer.buffer, 0)); in allocate_trace_buffer()
9193 static int allocate_trace_buffers(struct trace_array *tr, int size) in allocate_trace_buffers() argument
9197 ret = allocate_trace_buffer(tr, &tr->array_buffer, size); in allocate_trace_buffers()
9202 ret = allocate_trace_buffer(tr, &tr->max_buffer, in allocate_trace_buffers()
9205 free_trace_buffer(&tr->array_buffer); in allocate_trace_buffers()
9208 tr->allocated_snapshot = allocate_snapshot; in allocate_trace_buffers()
9220 static void free_trace_buffers(struct trace_array *tr) in free_trace_buffers() argument
9222 if (!tr) in free_trace_buffers()
9225 free_trace_buffer(&tr->array_buffer); in free_trace_buffers()
9228 free_trace_buffer(&tr->max_buffer); in free_trace_buffers()
9232 static void init_trace_flags_index(struct trace_array *tr) in init_trace_flags_index() argument
9238 tr->trace_flags_index[i] = i; in init_trace_flags_index()
9241 static void __update_tracer_options(struct trace_array *tr) in __update_tracer_options() argument
9246 add_tracer_options(tr, t); in __update_tracer_options()
9249 static void update_tracer_options(struct trace_array *tr) in update_tracer_options() argument
9253 __update_tracer_options(tr); in update_tracer_options()
9260 struct trace_array *tr, *found = NULL; in trace_array_find() local
9262 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_find()
9263 if (tr->name && strcmp(tr->name, instance) == 0) { in trace_array_find()
9264 found = tr; in trace_array_find()
9274 struct trace_array *tr; in trace_array_find_get() local
9277 tr = trace_array_find(instance); in trace_array_find_get()
9278 if (tr) in trace_array_find_get()
9279 tr->ref++; in trace_array_find_get()
9282 return tr; in trace_array_find_get()
9285 static int trace_array_create_dir(struct trace_array *tr) in trace_array_create_dir() argument
9289 tr->dir = tracefs_create_dir(tr->name, trace_instance_dir); in trace_array_create_dir()
9290 if (!tr->dir) in trace_array_create_dir()
9293 ret = event_trace_add_tracer(tr->dir, tr); in trace_array_create_dir()
9295 tracefs_remove(tr->dir); in trace_array_create_dir()
9299 init_tracer_tracefs(tr, tr->dir); in trace_array_create_dir()
9300 __update_tracer_options(tr); in trace_array_create_dir()
9307 struct trace_array *tr; in trace_array_create() local
9311 tr = kzalloc(sizeof(*tr), GFP_KERNEL); in trace_array_create()
9312 if (!tr) in trace_array_create()
9315 tr->name = kstrdup(name, GFP_KERNEL); in trace_array_create()
9316 if (!tr->name) in trace_array_create()
9319 if (!alloc_cpumask_var(&tr->tracing_cpumask, GFP_KERNEL)) in trace_array_create()
9322 tr->trace_flags = global_trace.trace_flags & ~ZEROED_TRACE_FLAGS; in trace_array_create()
9324 cpumask_copy(tr->tracing_cpumask, cpu_all_mask); in trace_array_create()
9326 raw_spin_lock_init(&tr->start_lock); in trace_array_create()
9328 tr->max_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; in trace_array_create()
9330 tr->current_trace = &nop_trace; in trace_array_create()
9332 INIT_LIST_HEAD(&tr->systems); in trace_array_create()
9333 INIT_LIST_HEAD(&tr->events); in trace_array_create()
9334 INIT_LIST_HEAD(&tr->hist_vars); in trace_array_create()
9335 INIT_LIST_HEAD(&tr->err_log); in trace_array_create()
9337 if (allocate_trace_buffers(tr, trace_buf_size) < 0) in trace_array_create()
9340 if (ftrace_allocate_ftrace_ops(tr) < 0) in trace_array_create()
9343 ftrace_init_trace_array(tr); in trace_array_create()
9345 init_trace_flags_index(tr); in trace_array_create()
9348 ret = trace_array_create_dir(tr); in trace_array_create()
9352 __trace_early_add_events(tr); in trace_array_create()
9354 list_add(&tr->list, &ftrace_trace_arrays); in trace_array_create()
9356 tr->ref++; in trace_array_create()
9358 return tr; in trace_array_create()
9361 ftrace_free_ftrace_ops(tr); in trace_array_create()
9362 free_trace_buffers(tr); in trace_array_create()
9363 free_cpumask_var(tr->tracing_cpumask); in trace_array_create()
9364 kfree(tr->name); in trace_array_create()
9365 kfree(tr); in trace_array_create()
9372 struct trace_array *tr; in instance_mkdir() local
9382 tr = trace_array_create(name); in instance_mkdir()
9384 ret = PTR_ERR_OR_ZERO(tr); in instance_mkdir()
9410 struct trace_array *tr; in trace_array_get_by_name() local
9415 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_get_by_name()
9416 if (tr->name && strcmp(tr->name, name) == 0) in trace_array_get_by_name()
9420 tr = trace_array_create(name); in trace_array_get_by_name()
9422 if (IS_ERR(tr)) in trace_array_get_by_name()
9423 tr = NULL; in trace_array_get_by_name()
9425 if (tr) in trace_array_get_by_name()
9426 tr->ref++; in trace_array_get_by_name()
9430 return tr; in trace_array_get_by_name()
9434 static int __remove_instance(struct trace_array *tr) in __remove_instance() argument
9439 if (tr->ref > 1 || (tr->current_trace && tr->trace_ref)) in __remove_instance()
9442 list_del(&tr->list); in __remove_instance()
9447 set_tracer_flag(tr, 1 << i, 0); in __remove_instance()
9450 tracing_set_nop(tr); in __remove_instance()
9451 clear_ftrace_function_probes(tr); in __remove_instance()
9452 event_trace_del_tracer(tr); in __remove_instance()
9453 ftrace_clear_pids(tr); in __remove_instance()
9454 ftrace_destroy_function_files(tr); in __remove_instance()
9455 tracefs_remove(tr->dir); in __remove_instance()
9456 free_percpu(tr->last_func_repeats); in __remove_instance()
9457 free_trace_buffers(tr); in __remove_instance()
9459 for (i = 0; i < tr->nr_topts; i++) { in __remove_instance()
9460 kfree(tr->topts[i].topts); in __remove_instance()
9462 kfree(tr->topts); in __remove_instance()
9464 free_cpumask_var(tr->tracing_cpumask); in __remove_instance()
9465 kfree(tr->name); in __remove_instance()
9466 kfree(tr); in __remove_instance()
9473 struct trace_array *tr; in trace_array_destroy() local
9485 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in trace_array_destroy()
9486 if (tr == this_tr) { in trace_array_destroy()
9487 ret = __remove_instance(tr); in trace_array_destroy()
9501 struct trace_array *tr; in instance_rmdir() local
9508 tr = trace_array_find(name); in instance_rmdir()
9509 if (tr) in instance_rmdir()
9510 ret = __remove_instance(tr); in instance_rmdir()
9520 struct trace_array *tr; in create_trace_instances() local
9531 list_for_each_entry(tr, &ftrace_trace_arrays, list) { in create_trace_instances()
9532 if (!tr->name) in create_trace_instances()
9534 if (MEM_FAIL(trace_array_create_dir(tr) < 0, in create_trace_instances()
9544 init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer) in init_tracer_tracefs() argument
9550 tr, &show_traces_fops); in init_tracer_tracefs()
9553 tr, &set_tracer_fops); in init_tracer_tracefs()
9556 tr, &tracing_cpumask_fops); in init_tracer_tracefs()
9559 tr, &tracing_iter_fops); in init_tracer_tracefs()
9562 tr, &tracing_fops); in init_tracer_tracefs()
9565 tr, &tracing_pipe_fops); in init_tracer_tracefs()
9568 tr, &tracing_entries_fops); in init_tracer_tracefs()
9571 tr, &tracing_total_entries_fops); in init_tracer_tracefs()
9574 tr, &tracing_free_buffer_fops); in init_tracer_tracefs()
9577 tr, &tracing_mark_fops); in init_tracer_tracefs()
9579 file = __find_event_file(tr, "ftrace", "print"); in init_tracer_tracefs()
9583 tr->trace_marker_file = file; in init_tracer_tracefs()
9586 tr, &tracing_mark_raw_fops); in init_tracer_tracefs()
9588 trace_create_file("trace_clock", TRACE_MODE_WRITE, d_tracer, tr, in init_tracer_tracefs()
9592 tr, &rb_simple_fops); in init_tracer_tracefs()
9594 trace_create_file("timestamp_mode", TRACE_MODE_READ, d_tracer, tr, in init_tracer_tracefs()
9597 tr->buffer_percent = 50; in init_tracer_tracefs()
9600 tr, &buffer_percent_fops); in init_tracer_tracefs()
9602 create_trace_options_dir(tr); in init_tracer_tracefs()
9604 trace_create_maxlat_file(tr, d_tracer); in init_tracer_tracefs()
9606 if (ftrace_create_function_files(tr, d_tracer)) in init_tracer_tracefs()
9611 tr, &snapshot_fops); in init_tracer_tracefs()
9615 tr, &tracing_err_log_fops); in init_tracer_tracefs()
9618 tracing_init_tracefs_percpu(tr, cpu); in init_tracer_tracefs()
9620 ftrace_init_tracefs(tr, d_tracer); in init_tracer_tracefs()
9654 struct trace_array *tr = &global_trace; in tracing_init_dentry() local
9662 if (tr->dir) in tracing_init_dentry()
9674 tr->dir = debugfs_create_automount("tracing", NULL, in tracing_init_dentry()
9930 iter->tr = &global_trace; in trace_init_global_iter()
9931 iter->trace = iter->tr->current_trace; in trace_init_global_iter()
9943 if (trace_clocks[iter->tr->clock_id].in_ns) in trace_init_global_iter()
9958 struct trace_array *tr = &global_trace; in ftrace_dump() local
9988 old_userobj = tr->trace_flags & TRACE_ITER_SYM_USEROBJ; in ftrace_dump()
9991 tr->trace_flags &= ~TRACE_ITER_SYM_USEROBJ; in ftrace_dump()
10050 tr->trace_flags |= old_userobj; in ftrace_dump()