bpf: Remove VMA linked list
authorLiam R. Howlett <Liam.Howlett@Oracle.com>
Wed, 7 Apr 2021 19:56:08 +0000 (15:56 -0400)
committerLiam R. Howlett <Liam.Howlett@oracle.com>
Thu, 2 Sep 2021 15:26:33 +0000 (11:26 -0400)
Use vma_next() and remove reference to the start of the linked list

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
kernel/bpf/task_iter.c

index b48750bfba5aa1679e2ceb0de7cc2ead4a74522c..06cc1c1438ed76131b9c2bcd3ec2d36c6d91964d 100644 (file)
@@ -400,10 +400,10 @@ again:
 
        switch (op) {
        case task_vma_iter_first_vma:
-               curr_vma = curr_task->mm->mmap;
+               curr_vma = find_vma(curr_task->mm, 0);
                break;
        case task_vma_iter_next_vma:
-               curr_vma = curr_vma->vm_next;
+               curr_vma = vma_next(curr_vma->vm_mm, curr_vma);
                break;
        case task_vma_iter_find_vma:
                /* We dropped mmap_lock so it is necessary to use find_vma
@@ -417,7 +417,7 @@ again:
                if (curr_vma &&
                    curr_vma->vm_start == info->prev_vm_start &&
                    curr_vma->vm_end == info->prev_vm_end)
-                       curr_vma = curr_vma->vm_next;
+                       curr_vma = vma_next(curr_vma->vm_mm, curr_vma);
                break;
        }
        if (!curr_vma) {