diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_boot.c | 31 | ||||
| -rw-r--r-- | kernel/trace/trace_events_hist.c | 9 |
2 files changed, 14 insertions, 26 deletions
diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index 2298a70cdda6..06d7feb5255f 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -125,38 +125,31 @@ trace_boot_add_kprobe_event(struct xbc_node *node, const char *event) #endif #ifdef CONFIG_HIST_TRIGGERS -extern int synth_event_run_command(const char *command); - static int __init trace_boot_add_synth_event(struct xbc_node *node, const char *event) { + struct dynevent_cmd cmd; struct xbc_node *anode; - char buf[MAX_BUF_LEN], *q; + char buf[MAX_BUF_LEN]; const char *p; - int len, delta, ret; + int ret; - len = ARRAY_SIZE(buf); - delta = snprintf(buf, len, "%s", event); - if (delta >= len) { - pr_err("Event name is too long: %s\n", event); - return -E2BIG; - } - len -= delta; q = buf + delta; + synth_event_cmd_init(&cmd, buf, MAX_BUF_LEN); + + ret = synth_event_gen_cmd_start(&cmd, event, NULL); + if (ret) + return ret; xbc_node_for_each_array_value(node, "fields", anode, p) { - delta = snprintf(q, len, " %s;", p); - if (delta >= len) { - pr_err("fields string is too long: %s\n", p); - return -E2BIG; - } - len -= delta; q += delta; + ret = synth_event_add_field_str(&cmd, p); + if (ret) + return ret; } - ret = synth_event_run_command(buf); + ret = synth_event_gen_cmd_end(&cmd); if (ret < 0) pr_err("Failed to add synthetic event: %s\n", buf); - return ret; } #else diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 4d56a4f0310d..2e88c9805f4b 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -1755,12 +1755,7 @@ static int create_or_delete_synth_event(int argc, char **argv) return ret == -ECANCELED ? -EINVAL : ret; } -int synth_event_run_command(const char *command) -{ - return trace_run_command(command, create_or_delete_synth_event); -} - -static int synth_event_run_cmd(struct dynevent_cmd *cmd) +static int synth_event_run_command(struct dynevent_cmd *cmd) { struct synth_event *se; int ret; @@ -1790,7 +1785,7 @@ static int synth_event_run_cmd(struct dynevent_cmd *cmd) void synth_event_cmd_init(struct dynevent_cmd *cmd, char *buf, int maxlen) { dynevent_cmd_init(cmd, buf, maxlen, DYNEVENT_TYPE_SYNTH, - synth_event_run_cmd); + synth_event_run_command); } EXPORT_SYMBOL_GPL(synth_event_cmd_init); |