bpf: Remove VMA linked list

Use vma_next() and remove reference to the start of the linked list

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

diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c
index b68cb5d6d6ebcdc3a12cd72b3db94b4c5d5875ff..c1c71adc7c1a4c1acb418f2b043234d528e82672 100644 (file)
--- a/kernel/bpf/task_iter.c
+++ b/kernel/bpf/task_iter.c
@@ -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) {