From 4cb63a9fa7de708d6a76e0f778f584b4dbf33815 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Tue, 16 Mar 2021 15:58:42 -0400 Subject: [PATCH] events/core rcu fix Signed-off-by: Liam R. Howlett --- kernel/events/core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index abc330513abf..0853c9af3237 100644 --- 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(); } /* -- 2.50.1