diff options
Diffstat (limited to 'kernel/tracepoint.c')
| -rw-r--r-- | kernel/tracepoint.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index db39961a0d0..f2b7c28a470 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -356,6 +356,8 @@ int tracepoint_probe_register(const char *name, void *probe) mutex_lock(&tracepoints_mutex); entry = get_tracepoint(name); WARN_ON(!entry); + if (entry->rcu_pending) + rcu_barrier_sched(); tracepoint_entry_free_old(entry, old); end: mutex_unlock(&tracepoints_mutex); @@ -392,6 +394,8 @@ int tracepoint_probe_unregister(const char *name, void *probe) entry = get_tracepoint(name); if (!entry) goto end; + if (entry->rcu_pending) + rcu_barrier_sched(); tracepoint_entry_free_old(entry, old); remove_tracepoint(name); /* Ignore busy error message */ ret = 0; |