From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:52:39 +0000 (-0500)
Subject: kernel/events/core: Use maple tree iterators instead of linked list
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1c50c134de8dd7cbd80be1d99eb960e0a490b974;p=users%2Fjedix%2Flinux-maple.git

kernel/events/core: Use maple tree iterators instead of linked list

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

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();
 }
 
 /*