diff options
Diffstat (limited to 'kernel/trace/trace_events.c')
| -rw-r--r-- | kernel/trace/trace_events.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 065c63991858..91951d038ba4 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -2286,6 +2286,7 @@ event_subsystem_dir(struct trace_array *tr, const char *name, { struct event_subsystem *system, *iter; struct trace_subsystem_dir *dir; + struct eventfs_file *ef; int res; /* First see if we did not already create this dir */ @@ -2318,13 +2319,14 @@ event_subsystem_dir(struct trace_array *tr, const char *name, } else __get_system(system); - dir->ef = eventfs_add_subsystem_dir(name, parent); - if (IS_ERR(dir->ef)) { + ef = eventfs_add_subsystem_dir(name, parent); + if (IS_ERR(ef)) { pr_warn("Failed to create system directory %s\n", name); __put_system(system); goto out_free; } + dir->ef = ef; dir->tr = tr; dir->ref_count = 1; dir->nr_events = 1; @@ -2404,6 +2406,7 @@ event_create_dir(struct dentry *parent, struct trace_event_file *file) struct trace_event_call *call = file->event_call; struct eventfs_file *ef_subsystem = NULL; struct trace_array *tr = file->tr; + struct eventfs_file *ef; const char *name; int ret; @@ -2420,12 +2423,14 @@ event_create_dir(struct dentry *parent, struct trace_event_file *file) return -ENOMEM; name = trace_event_name(call); - file->ef = eventfs_add_dir(name, ef_subsystem); - if (IS_ERR(file->ef)) { + ef = eventfs_add_dir(name, ef_subsystem); + if (IS_ERR(ef)) { pr_warn("Could not create tracefs '%s' directory\n", name); return -1; } + file->ef = ef; + if (call->class->reg && !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)) eventfs_add_file("enable", TRACE_MODE_WRITE, file->ef, file, &ftrace_enable_fops); |