Message ID | 20220720021727.17018-53-Liam.Howlett@oracle.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Series |
Introducing the Maple Tree
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expand
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diff --git a/mm/huge_memory.c b/mm/huge_memory.c index f7248002dad9..f44ffd3bbfae 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2266,11 +2266,11 @@ void vma_adjust_trans_huge(struct vm_area_struct *vma, split_huge_pmd_if_needed(vma, end); /* - * If we're also updating the vma->vm_next->vm_start, + * If we're also updating the next vma vm_start, * check if we need to split it. */ if (adjust_next > 0) { - struct vm_area_struct *next = vma->vm_next; + struct vm_area_struct *next = find_vma(vma->vm_mm, vma->vm_end); unsigned long nstart = next->vm_start; nstart += adjust_next; split_huge_pmd_if_needed(next, nstart); diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 8dbd68c414d9..637bfecd6bf5 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -2092,10 +2092,12 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages, __releases(&khugepaged_mm_lock) __acquires(&khugepaged_mm_lock) { + struct vma_iterator vmi; struct mm_slot *mm_slot; struct mm_struct *mm; struct vm_area_struct *vma; int progress = 0; + unsigned long address; VM_BUG_ON(!pages); lockdep_assert_held(&khugepaged_mm_lock); @@ -2119,11 +2121,14 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages, vma = NULL; if (unlikely(!mmap_read_trylock(mm))) goto breakouterloop_mmap_lock; - if (likely(!khugepaged_test_exit(mm))) - vma = find_vma(mm, khugepaged_scan.address); progress++; - for (; vma; vma = vma->vm_next) { + if (unlikely(khugepaged_test_exit(mm))) + goto breakouterloop; + + address = khugepaged_scan.address; + vma_iter_init(&vmi, mm, address); + for_each_vma(vmi, vma) { unsigned long hstart, hend; cond_resched();