diff options
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ddb7e7f5fe8d..5e02d65505c1 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -8504,7 +8504,7 @@ static struct trace_array *trace_array_create(const char *name) ret = event_trace_add_tracer(tr->dir, tr); if (ret) { - tracefs_remove_recursive(tr->dir); + tracefs_remove(tr->dir); goto out_free_tr; } @@ -8613,7 +8613,7 @@ static int __remove_instance(struct trace_array *tr) event_trace_del_tracer(tr); ftrace_clear_pids(tr); ftrace_destroy_function_files(tr); - tracefs_remove_recursive(tr->dir); + tracefs_remove(tr->dir); free_trace_buffers(tr); for (i = 0; i < tr->nr_topts; i++) { @@ -9420,6 +9420,11 @@ __init static int tracing_set_default_clock(void) { /* sched_clock_stable() is determined in late_initcall */ if (!trace_boot_clock && !sched_clock_stable()) { + if (security_locked_down(LOCKDOWN_TRACEFS)) { + pr_warn("Can not set tracing clock due to lockdown\n"); + return -EPERM; + } + printk(KERN_WARNING "Unstable clock detected, switching default tracing clock to \"global\"\n" "If you want to keep using the local clock, then add:\n" |