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SubjectRe: [PATCH 2/3] mm/smaps: Use vma->vm_pgoff directly when counting partial swap
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On 9/17/21 18:47, Peter Xu wrote:
> As it's trying to cover the whole vma anyways, use direct vm_pgoff value and
> vma_pages() rather than linear_page_index.
>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Cc: Hugh Dickins <hughd@google.com>
> Signed-off-by: Peter Xu <peterx@redhat.com>

Reviewed-by: Vlastimil Babka <vbabka@suse.cz>

> ---
> mm/shmem.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/mm/shmem.c b/mm/shmem.c
> index 96ccf6e941aa..d2620db8c938 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -856,9 +856,8 @@ unsigned long shmem_swap_usage(struct vm_area_struct *vma)
> return swapped << PAGE_SHIFT;
>
> /* Here comes the more involved part */
> - return shmem_partial_swap_usage(mapping,
> - linear_page_index(vma, vma->vm_start),
> - linear_page_index(vma, vma->vm_end));
> + return shmem_partial_swap_usage(mapping, vma->vm_pgoff,
> + vma->vm_pgoff + vma_pages(vma));
> }
>
> /*
>

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