pte_t *pte;
int referenced = 0;
- if (!get_mm_counter(mm, rss))
- goto out;
address = vma_address(page, vma);
if (address == -EFAULT)
goto out;
void page_add_anon_rmap(struct page *page,
struct vm_area_struct *vma, unsigned long address)
{
- struct anon_vma *anon_vma = vma->anon_vma;
- pgoff_t index;
-
BUG_ON(PageReserved(page));
- BUG_ON(!anon_vma);
inc_mm_counter(vma->vm_mm, anon_rss);
- anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
- index = (address - vma->vm_start) >> PAGE_SHIFT;
- index += vma->vm_pgoff;
- index >>= PAGE_CACHE_SHIFT - PAGE_SHIFT;
-
if (atomic_inc_and_test(&page->_mapcount)) {
- page->index = index;
+ struct anon_vma *anon_vma = vma->anon_vma;
+
+ BUG_ON(!anon_vma);
+ anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
page->mapping = (struct address_space *) anon_vma;
+
+ page->index = linear_page_index(vma, address);
+
inc_page_state(nr_mapped);
}
/* else checking page index and mapping is racy */
pte_t pteval;
int ret = SWAP_AGAIN;
- if (!get_mm_counter(mm, rss))
- goto out;
address = vma_address(page, vma);
if (address == -EFAULT)
goto out;
* If the page is mlock()d, we cannot swap it out.
* If it's recently referenced (perhaps page_referenced
* skipped over this mm) then we should reactivate it.
+ *
+ * Pages belonging to VM_RESERVED regions should not happen here.
*/
if ((vma->vm_flags & (VM_LOCKED|VM_RESERVED)) ||
ptep_clear_flush_young(vma, address, pte)) {
if (vma->vm_flags & (VM_LOCKED|VM_RESERVED))
continue;
cursor = (unsigned long) vma->vm_private_data;
- while (get_mm_counter(vma->vm_mm, rss) &&
- cursor < max_nl_cursor &&
+ while ( cursor < max_nl_cursor &&
cursor < vma->vm_end - vma->vm_start) {
try_to_unmap_cluster(cursor, &mapcount, vma);
cursor += CLUSTER_SIZE;