diff options
| -rw-r--r-- | kernel/trace/trace.c | 4 | ||||
| -rw-r--r-- | kernel/trace/trace_boot.c | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 6fed9b0a8d58..0a5569b1cace 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -8602,6 +8602,10 @@ out_unlock: * NOTE: This function increments the reference counter associated with the * trace array returned. This makes sure it cannot be freed while in use. * Use trace_array_put() once the trace array is no longer needed. + * If the trace_array is to be freed, trace_array_destroy() needs to + * be called after the trace_array_put(), or simply let user space delete + * it from the tracefs instances directory. But until the + * trace_array_put() is called, user space can not delete it. * */ struct trace_array *trace_array_get_by_name(const char *name) diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index cd541ac1cbc1..2f616cd926b0 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -327,6 +327,7 @@ trace_boot_init_instances(struct xbc_node *node) continue; } trace_boot_init_one_instance(tr, inode); + trace_array_put(tr); } } |