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-rw-r--r--kernel/trace/trace.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 29615f15a820..f12e99b387b2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -8527,18 +8527,6 @@ static int allocate_trace_buffers(struct trace_array *tr, int size)
allocate_snapshot = false;
#endif
- /*
- * Because of some magic with the way alloc_percpu() works on
- * x86_64, we need to synchronize the pgd of all the tables,
- * otherwise the trace events that happen in x86_64 page fault
- * handlers can't cope with accessing the chance that a
- * alloc_percpu()'d memory might be touched in the page fault trace
- * event. Oh, and we need to audit all other alloc_percpu() and vmalloc()
- * calls in tracing, because something might get triggered within a
- * page fault trace event!
- */
- vmalloc_sync_mappings();
-
return 0;
}