diff options
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 9729d14767d..b05b6ac982a 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -813,6 +813,7 @@ struct ftrace_event_call { int (*show_format)(struct trace_seq *s); int (*define_fields)(void); struct list_head fields; + int n_preds; struct filter_pred **preds; #ifdef CONFIG_EVENT_PROFILE @@ -826,6 +827,7 @@ struct event_subsystem { struct list_head list; const char *name; struct dentry *entry; + int n_preds; struct filter_pred **preds; }; @@ -834,7 +836,8 @@ struct event_subsystem { (unsigned long)event < (unsigned long)__stop_ftrace_events; \ event++) -#define MAX_FILTER_PRED 8 +#define MAX_FILTER_PRED 8 +#define MAX_FILTER_STR_VAL 128 struct filter_pred; @@ -843,7 +846,7 @@ typedef int (*filter_pred_fn_t) (struct filter_pred *pred, void *event); struct filter_pred { filter_pred_fn_t fn; u64 val; - char *str_val; + char str_val[MAX_FILTER_STR_VAL]; int str_len; char *field_name; int offset; @@ -855,13 +858,14 @@ struct filter_pred { int trace_define_field(struct ftrace_event_call *call, char *type, char *name, int offset, int size); +extern int init_preds(struct ftrace_event_call *call); extern void filter_free_pred(struct filter_pred *pred); -extern void filter_print_preds(struct filter_pred **preds, +extern void filter_print_preds(struct filter_pred **preds, int n_preds, struct trace_seq *s); extern int filter_parse(char **pbuf, struct filter_pred *pred); extern int filter_add_pred(struct ftrace_event_call *call, struct filter_pred *pred); -extern void filter_free_preds(struct ftrace_event_call *call); +extern void filter_disable_preds(struct ftrace_event_call *call); extern int filter_match_preds(struct ftrace_event_call *call, void *rec); extern void filter_free_subsystem_preds(struct event_subsystem *system); extern int filter_add_subsystem_pred(struct event_subsystem *system, @@ -875,7 +879,7 @@ filter_check_discard(struct ftrace_event_call *call, void *rec, struct ring_buffer *buffer, struct ring_buffer_event *event) { - if (unlikely(call->preds) && !filter_match_preds(call, rec)) { + if (unlikely(call->n_preds) && !filter_match_preds(call, rec)) { ring_buffer_discard_commit(buffer, event); return 1; } |