Merge branch 'hotfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...

[pandora-kernel.git] / mm / rmap.c

diff --git a/mm/rmap.c b/mm/rmap.c
index 39ae5a9..94a5246 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -49,6 +49,7 @@
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/memcontrol.h>
+#include <linux/mmu_notifier.h>
 
 #include <asm/tlbflush.h>
 
@@ -287,7 +288,7 @@ static int page_referenced_one(struct page *page,
        if (vma->vm_flags & VM_LOCKED) {
                referenced++;
                *mapcount = 1;  /* break early from loop */
-       } else if (ptep_clear_flush_young(vma, address, pte))
+       } else if (ptep_clear_flush_young_notify(vma, address, pte))
                referenced++;
 
        /* Pretend the page is referenced if the task has the
@@ -457,7 +458,7 @@ static int page_mkclean_one(struct page *page, struct vm_area_struct *vma)
                pte_t entry;
 
                flush_cache_page(vma, address, pte_pfn(*pte));
-               entry = ptep_clear_flush(vma, address, pte);
+               entry = ptep_clear_flush_notify(vma, address, pte);
                entry = pte_wrprotect(entry);
                entry = pte_mkclean(entry);
                set_pte_at(mm, address, pte, entry);
@@ -666,7 +667,8 @@ void page_remove_rmap(struct page *page, struct vm_area_struct *vma)
                 * Leaving it set also helps swapoff to reinstate ptes
                 * faster for those pages still in swapcache.
                 */
-               if (page_test_dirty(page)) {
+               if ((!PageAnon(page) || PageSwapCache(page)) &&
+                   page_test_dirty(page)) {
                        page_clear_dirty(page);
                        set_page_dirty(page);
                }
@@ -705,14 +707,14 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
         * skipped over this mm) then we should reactivate it.
         */
        if (!migration && ((vma->vm_flags & VM_LOCKED) ||
-                       (ptep_clear_flush_young(vma, address, pte)))) {
+                       (ptep_clear_flush_young_notify(vma, address, pte)))) {
                ret = SWAP_FAIL;
                goto out_unmap;
        }
 
        /* Nuke the page table entry. */
        flush_cache_page(vma, address, page_to_pfn(page));
-       pteval = ptep_clear_flush(vma, address, pte);
+       pteval = ptep_clear_flush_notify(vma, address, pte);
 
        /* Move the dirty bit to the physical page now the pte is gone. */
        if (pte_dirty(pteval))
@@ -837,12 +839,12 @@ static void try_to_unmap_cluster(unsigned long cursor,
                page = vm_normal_page(vma, address, *pte);
                BUG_ON(!page || PageAnon(page));
 
-               if (ptep_clear_flush_young(vma, address, pte))
+               if (ptep_clear_flush_young_notify(vma, address, pte))
                        continue;
 
                /* Nuke the page table entry. */
                flush_cache_page(vma, address, pte_pfn(*pte));
-               pteval = ptep_clear_flush(vma, address, pte);
+               pteval = ptep_clear_flush_notify(vma, address, pte);
 
                /* If nonlinear, store the file page offset in the pte. */
                if (page->index != linear_page_index(vma, address))