| trace.c (8ab7a2b7055c88c3da5e4684dfa015c6a8987c28) | trace.c (458999c6f67b0ffcc704a4892041dd700adf7d83) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * ring buffer based function tracer 4 * 5 * Copyright (C) 2007-2012 Steven Rostedt <srostedt@redhat.com> 6 * Copyright (C) 2008 Ingo Molnar <mingo@redhat.com> 7 * 8 * Originally taken from the RT patch by: --- 257 unchanged lines hidden (view full) --- 266} 267 268static DEFINE_MUTEX(ftrace_export_lock); 269 270static struct trace_export __rcu *ftrace_exports_list __read_mostly; 271 272static DEFINE_STATIC_KEY_FALSE(trace_function_exports_enabled); 273static DEFINE_STATIC_KEY_FALSE(trace_event_exports_enabled); | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * ring buffer based function tracer 4 * 5 * Copyright (C) 2007-2012 Steven Rostedt <srostedt@redhat.com> 6 * Copyright (C) 2008 Ingo Molnar <mingo@redhat.com> 7 * 8 * Originally taken from the RT patch by: --- 257 unchanged lines hidden (view full) --- 266} 267 268static DEFINE_MUTEX(ftrace_export_lock); 269 270static struct trace_export __rcu *ftrace_exports_list __read_mostly; 271 272static DEFINE_STATIC_KEY_FALSE(trace_function_exports_enabled); 273static DEFINE_STATIC_KEY_FALSE(trace_event_exports_enabled); |
| 274static DEFINE_STATIC_KEY_FALSE(trace_marker_exports_enabled); |
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| 274 275static inline void ftrace_exports_enable(struct trace_export *export) 276{ 277 if (export->flags & TRACE_EXPORT_FUNCTION) 278 static_branch_inc(&trace_function_exports_enabled); 279 280 if (export->flags & TRACE_EXPORT_EVENT) 281 static_branch_inc(&trace_event_exports_enabled); | 275 276static inline void ftrace_exports_enable(struct trace_export *export) 277{ 278 if (export->flags & TRACE_EXPORT_FUNCTION) 279 static_branch_inc(&trace_function_exports_enabled); 280 281 if (export->flags & TRACE_EXPORT_EVENT) 282 static_branch_inc(&trace_event_exports_enabled); |
| 283 284 if (export->flags & TRACE_EXPORT_MARKER) 285 static_branch_inc(&trace_marker_exports_enabled); |
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| 282} 283 284static inline void ftrace_exports_disable(struct trace_export *export) 285{ 286 if (export->flags & TRACE_EXPORT_FUNCTION) 287 static_branch_dec(&trace_function_exports_enabled); 288 289 if (export->flags & TRACE_EXPORT_EVENT) 290 static_branch_dec(&trace_event_exports_enabled); | 286} 287 288static inline void ftrace_exports_disable(struct trace_export *export) 289{ 290 if (export->flags & TRACE_EXPORT_FUNCTION) 291 static_branch_dec(&trace_function_exports_enabled); 292 293 if (export->flags & TRACE_EXPORT_EVENT) 294 static_branch_dec(&trace_event_exports_enabled); |
| 295 296 if (export->flags & TRACE_EXPORT_MARKER) 297 static_branch_dec(&trace_marker_exports_enabled); |
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| 291} 292 293static void ftrace_exports(struct ring_buffer_event *event, int flag) 294{ 295 struct trace_export *export; 296 297 preempt_disable_notrace(); 298 --- 6383 unchanged lines hidden (view full) --- 6682 } 6683 6684 if (entry->buf[cnt - 1] != '\n') { 6685 entry->buf[cnt] = '\n'; 6686 entry->buf[cnt + 1] = '\0'; 6687 } else 6688 entry->buf[cnt] = '\0'; 6689 | 298} 299 300static void ftrace_exports(struct ring_buffer_event *event, int flag) 301{ 302 struct trace_export *export; 303 304 preempt_disable_notrace(); 305 --- 6383 unchanged lines hidden (view full) --- 6689 } 6690 6691 if (entry->buf[cnt - 1] != '\n') { 6692 entry->buf[cnt] = '\n'; 6693 entry->buf[cnt + 1] = '\0'; 6694 } else 6695 entry->buf[cnt] = '\0'; 6696 |
| 6697 if (static_branch_unlikely(&trace_marker_exports_enabled)) 6698 ftrace_exports(event, TRACE_EXPORT_MARKER); |
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| 6690 __buffer_unlock_commit(buffer, event); 6691 6692 if (tt) 6693 event_triggers_post_call(tr->trace_marker_file, tt); 6694 6695 if (written > 0) 6696 *fpos += written; 6697 --- 2926 unchanged lines hidden --- | 6699 __buffer_unlock_commit(buffer, event); 6700 6701 if (tt) 6702 event_triggers_post_call(tr->trace_marker_file, tt); 6703 6704 if (written > 0) 6705 *fpos += written; 6706 --- 2926 unchanged lines hidden --- |