diff options
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/mm/memory.c b/mm/memory.c index 1598051a2a24..b0dda866ffe6 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1694,36 +1694,6 @@ void unmap_vmas(struct mmu_gather *tlb, struct maple_tree *mt, } /** - * zap_page_range - remove user pages in a given range - * @vma: vm_area_struct holding the applicable pages - * @start: starting address of pages to zap - * @size: number of bytes to zap - * - * Caller must protect the VMA list - */ -void zap_page_range(struct vm_area_struct *vma, unsigned long start, - unsigned long size) -{ - struct maple_tree *mt = &vma->vm_mm->mm_mt; - unsigned long end = start + size; - struct mmu_notifier_range range; - struct mmu_gather tlb; - MA_STATE(mas, mt, vma->vm_end, vma->vm_end); - - lru_add_drain(); - mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, vma->vm_mm, - start, start + size); - tlb_gather_mmu(&tlb, vma->vm_mm); - update_hiwater_rss(vma->vm_mm); - mmu_notifier_invalidate_range_start(&range); - do { - unmap_single_vma(&tlb, vma, start, range.end, NULL); - } while ((vma = mas_find(&mas, end - 1)) != NULL); - mmu_notifier_invalidate_range_end(&range); - tlb_finish_mmu(&tlb); -} - -/** * zap_page_range_single - remove user pages in a given range * @vma: vm_area_struct holding the applicable pages * @address: starting address of pages to zap |