diff options
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index f154019e6b84..ea24718db4af 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6425,17 +6425,14 @@ out_release_nounlock: } #endif /* CONFIG_USERFAULTFD */ -static void record_subpages_vmas(struct page *page, struct vm_area_struct *vma, - int refs, struct page **pages, - struct vm_area_struct **vmas) +static void record_subpages(struct page *page, struct vm_area_struct *vma, + int refs, struct page **pages) { int nr; for (nr = 0; nr < refs; nr++) { if (likely(pages)) pages[nr] = nth_page(page, nr); - if (vmas) - vmas[nr] = vma; } } @@ -6508,9 +6505,9 @@ out_unlock: } long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, - struct page **pages, struct vm_area_struct **vmas, - unsigned long *position, unsigned long *nr_pages, - long i, unsigned int flags, int *locked) + struct page **pages, unsigned long *position, + unsigned long *nr_pages, long i, unsigned int flags, + int *locked) { unsigned long pfn_offset; unsigned long vaddr = *position; @@ -6638,7 +6635,7 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, * If subpage information not requested, update counters * and skip the same_page loop below. */ - if (!pages && !vmas && !pfn_offset && + if (!pages && !pfn_offset && (vaddr + huge_page_size(h) < vma->vm_end) && (remainder >= pages_per_huge_page(h))) { vaddr += huge_page_size(h); @@ -6653,11 +6650,10 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, refs = min3(pages_per_huge_page(h) - pfn_offset, remainder, (vma->vm_end - ALIGN_DOWN(vaddr, PAGE_SIZE)) >> PAGE_SHIFT); - if (pages || vmas) - record_subpages_vmas(nth_page(page, pfn_offset), - vma, refs, - likely(pages) ? pages + i : NULL, - vmas ? vmas + i : NULL); + if (pages) + record_subpages(nth_page(page, pfn_offset), + vma, refs, + likely(pages) ? pages + i : NULL); if (pages) { /* |