events/core rcu fix

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>

diff --git a/kernel/events/core.c b/kernel/events/core.c
index abc330513abf6f061eddc0aac1b6cc6835732136..0853c9af3237238f26e09f964303b195d3c6f021 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -10002,13 +10002,15 @@ static void perf_addr_filter_apply(struct perf_addr_filter *filter,
        struct vm_area_struct *vma;
        MA_STATE(mas, &mm->mm_mt, 0, 0);
 
+       rcu_read_lock();
        mas_for_each(&mas, vma, ULONG_MAX) {
                if (!vma->vm_file)
                        continue;
 
                if (perf_addr_filter_vma_adjust(filter, vma, fr))
-                       return;
+                       break;
        }
+       rcu_read_unlock();
 }
 
 /*