diff options
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 51 |
1 files changed, 31 insertions, 20 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 10c86fb7a2b4..ea189e027b80 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -124,6 +124,7 @@ enum trace_flag_type { TRACE_FLAG_NEED_RESCHED = 0x04, TRACE_FLAG_HARDIRQ = 0x08, TRACE_FLAG_SOFTIRQ = 0x10, + TRACE_FLAG_PREEMPT_RESCHED = 0x20, }; #define TRACE_BUF_SIZE 1024 @@ -192,8 +193,8 @@ struct trace_array { #ifdef CONFIG_FTRACE_SYSCALLS int sys_refcount_enter; int sys_refcount_exit; - DECLARE_BITMAP(enabled_enter_syscalls, NR_syscalls); - DECLARE_BITMAP(enabled_exit_syscalls, NR_syscalls); + struct ftrace_event_file __rcu *enter_syscall_files[NR_syscalls]; + struct ftrace_event_file __rcu *exit_syscall_files[NR_syscalls]; #endif int stop_count; int clock_id; @@ -514,6 +515,7 @@ void tracing_reset_online_cpus(struct trace_buffer *buf); void tracing_reset_current(int cpu); void tracing_reset_all_online_cpus(void); int tracing_open_generic(struct inode *inode, struct file *filp); +bool tracing_is_disabled(void); struct dentry *trace_create_file(const char *name, umode_t mode, struct dentry *parent, @@ -711,6 +713,8 @@ extern unsigned long trace_flags; #define TRACE_GRAPH_PRINT_PROC 0x8 #define TRACE_GRAPH_PRINT_DURATION 0x10 #define TRACE_GRAPH_PRINT_ABS_TIME 0x20 +#define TRACE_GRAPH_PRINT_FILL_SHIFT 28 +#define TRACE_GRAPH_PRINT_FILL_MASK (0x3 << TRACE_GRAPH_PRINT_FILL_SHIFT) extern enum print_line_t print_graph_function_flags(struct trace_iterator *iter, u32 flags); @@ -730,15 +734,16 @@ extern void __trace_graph_return(struct trace_array *tr, #ifdef CONFIG_DYNAMIC_FTRACE /* TODO: make this variable */ #define FTRACE_GRAPH_MAX_FUNCS 32 -extern int ftrace_graph_filter_enabled; extern int ftrace_graph_count; extern unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS]; +extern int ftrace_graph_notrace_count; +extern unsigned long ftrace_graph_notrace_funcs[FTRACE_GRAPH_MAX_FUNCS]; static inline int ftrace_graph_addr(unsigned long addr) { int i; - if (!ftrace_graph_filter_enabled) + if (!ftrace_graph_count) return 1; for (i = 0; i < ftrace_graph_count; i++) { @@ -758,11 +763,31 @@ static inline int ftrace_graph_addr(unsigned long addr) return 0; } + +static inline int ftrace_graph_notrace_addr(unsigned long addr) +{ + int i; + + if (!ftrace_graph_notrace_count) + return 0; + + for (i = 0; i < ftrace_graph_notrace_count; i++) { + if (addr == ftrace_graph_notrace_funcs[i]) + return 1; + } + + return 0; +} #else static inline int ftrace_graph_addr(unsigned long addr) { return 1; } + +static inline int ftrace_graph_notrace_addr(unsigned long addr) +{ + return 0; +} #endif /* CONFIG_DYNAMIC_FTRACE */ #else /* CONFIG_FUNCTION_GRAPH_TRACER */ static inline enum print_line_t @@ -986,9 +1011,9 @@ struct filter_pred { extern enum regex_type filter_parse_regex(char *buff, int len, char **search, int *not); -extern void print_event_filter(struct ftrace_event_call *call, +extern void print_event_filter(struct ftrace_event_file *file, struct trace_seq *s); -extern int apply_event_filter(struct ftrace_event_call *call, +extern int apply_event_filter(struct ftrace_event_file *file, char *filter_string); extern int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir, char *filter_string); @@ -999,20 +1024,6 @@ extern int filter_assign_type(const char *type); struct ftrace_event_field * trace_find_event_field(struct ftrace_event_call *call, char *name); -static inline int -filter_check_discard(struct ftrace_event_call *call, void *rec, - struct ring_buffer *buffer, - struct ring_buffer_event *event) -{ - if (unlikely(call->flags & TRACE_EVENT_FL_FILTERED) && - !filter_match_preds(call->filter, rec)) { - ring_buffer_discard_commit(buffer, event); - return 1; - } - - return 0; -} - extern void trace_event_enable_cmd_record(bool enable); extern int event_trace_add_tracer(struct dentry *parent, struct trace_array *tr); extern int event_trace_del_tracer(struct trace_array *tr); |