From 1c50c134de8dd7cbd80be1d99eb960e0a490b974 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Mon, 4 Jan 2021 14:52:39 -0500 Subject: [PATCH] kernel/events/core: Use maple tree iterators instead of linked list Signed-off-by: Liam R. Howlett --- kernel/events/core.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 0c000cb01eeb..fd72dd1c472c 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -10162,14 +10162,17 @@ static void perf_addr_filter_apply(struct perf_addr_filter *filter, struct perf_addr_filter_range *fr) { struct vm_area_struct *vma; + MA_STATE(mas, &mm->mm_mt, 0, 0); - for (vma = mm->mmap; vma; vma = vma->vm_next) { + 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(); } /* -- 2.49.0