diff mbox series

[v3,42/66] kernel/events/core: Use maple tree iterators instead of linked list

Message ID 20211005012959.1110504-43-Liam.Howlett@oracle.com (mailing list archive)
State New
Headers show
Series Introducing the Maple Tree | expand

Commit Message

Liam R. Howlett Oct. 5, 2021, 1:31 a.m. UTC 
From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 kernel/events/core.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

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();
 }
 
 /*