Re: [PATCH v4 28/66] arm64: Remove mmap linked list from vdso

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On 12/1/21 15:30, Liam Howlett wrote:
> From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
> 
> Use the VMA iterator instead.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>

> ---
>  arch/arm64/kernel/vdso.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
> index a61fc4f989b3..a8388af62b99 100644
> --- a/arch/arm64/kernel/vdso.c
> +++ b/arch/arm64/kernel/vdso.c
> @@ -136,10 +136,11 @@ int vdso_join_timens(struct task_struct *task, struct time_namespace *ns)
>  {
>  	struct mm_struct *mm = task->mm;
>  	struct vm_area_struct *vma;
> +	VMA_ITERATOR(vmi, mm, 0);
>  
>  	mmap_read_lock(mm);
>  
> -	for (vma = mm->mmap; vma; vma = vma->vm_next) {
> +	for_each_vma(vmi, vma) {
>  		unsigned long size = vma->vm_end - vma->vm_start;
>  
>  		if (vma_is_special_mapping(vma, vdso_info[VDSO_ABI_AA64].dm))





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