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/parisc/kernel/cache.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index 94150b91c96f..c3a8d29b6f9f 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -519,9 +519,11 @@ static inline unsigned long mm_total_size(struct mm_struct *mm)
> {
> struct vm_area_struct *vma;
> unsigned long usize = 0;
> + VMA_ITERATOR(vmi, mm, 0);
>
> - for (vma = mm->mmap; vma; vma = vma->vm_next)
> + for_each_vma(vmi, vma)
> usize += vma->vm_end - vma->vm_start;
> +
> return usize;
> }
>
> @@ -570,6 +572,7 @@ static void flush_user_cache_tlb(struct vm_area_struct *vma,
> void flush_cache_mm(struct mm_struct *mm)
> {
> struct vm_area_struct *vma;
> + VMA_ITERATOR(vmi, mm, 0);
>
> /* Flushing the whole cache on each cpu takes forever on
> rp3440, etc. So, avoid it if the mm isn't too big. */
> @@ -583,13 +586,13 @@ void flush_cache_mm(struct mm_struct *mm)
>
> preempt_disable();
> if (mm->context == mfsp(3)) {
> - for (vma = mm->mmap; vma; vma = vma->vm_next)
> + for_each_vma(vmi, vma)
> flush_user_cache_tlb(vma, vma->vm_start, vma->vm_end);
> preempt_enable();
> return;
> }
>
> - for (vma = mm->mmap; vma; vma = vma->vm_next)
> + for_each_vma(vmi, vma)
> flush_cache_pages(vma, mm, vma->vm_start, vma->vm_end);
> preempt_enable();
> }
