diff options
| author | Liam R. Howlett <[email protected]> | 2022-09-06 19:48:59 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2022-09-26 19:46:22 -0700 |
| commit | becc8cdb6cb28d9fd3ecf890d1d6e59118a6a53d (patch) | |
| tree | 993a18fec28e8ecf0956c5e28483d7a404e0a51e | |
| parent | fa5e587679f034530e8c14bc1c466490053b2ff2 (diff) | |
bpf: remove VMA linked list
Use vma_next() and remove reference to the start of the linked list
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Liam R. Howlett <[email protected]>
Tested-by: Yu Zhao <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: David Howells <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: "Matthew Wilcox (Oracle)" <[email protected]>
Cc: SeongJae Park <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | kernel/bpf/task_iter.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c index 8c921799def4..1c8debd42dc9 100644 --- a/kernel/bpf/task_iter.c +++ b/kernel/bpf/task_iter.c @@ -299,8 +299,8 @@ struct bpf_iter_seq_task_vma_info { }; enum bpf_task_vma_iter_find_op { - task_vma_iter_first_vma, /* use mm->mmap */ - task_vma_iter_next_vma, /* use curr_vma->vm_next */ + task_vma_iter_first_vma, /* use find_vma() with addr 0 */ + task_vma_iter_next_vma, /* use vma_next() with curr_vma */ task_vma_iter_find_vma, /* use find_vma() to find next vma */ }; @@ -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 = find_vma(curr_task->mm, curr_vma->vm_end); 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 = find_vma(curr_task->mm, curr_vma->vm_end); break; } if (!curr_vma) { |