diff options
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 11668fb881d8..80525820aada 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -756,32 +756,6 @@ check: return NULL; } -/** - * page_mapped_in_vma - check whether a page is really mapped in a VMA - * @page: the page to test - * @vma: the VMA to test - * - * Returns 1 if the page is mapped into the page tables of the VMA, 0 - * if the page is not mapped into the page tables of this VMA. Only - * valid for normal file or anonymous VMAs. - */ -int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma) -{ - unsigned long address; - pte_t *pte; - spinlock_t *ptl; - - address = __vma_address(page, vma); - if (unlikely(address < vma->vm_start || address >= vma->vm_end)) - return 0; - pte = page_check_address(page, vma->vm_mm, address, &ptl, 1); - if (!pte) /* the page is not in this mm */ - return 0; - pte_unmap_unlock(pte, ptl); - - return 1; -} - #ifdef CONFIG_TRANSPARENT_HUGEPAGE /* * Check that @page is mapped at @address into @mm. In contrast to |