Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...

[cascardo/linux.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index a26bccd..c046927 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -161,6 +161,8 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
 
        get_page(new);
        pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
+       if (pte_swp_soft_dirty(*ptep))
+               pte = pte_mksoft_dirty(pte);
        if (is_write_migration_entry(entry))
                pte = pte_mkwrite(pte);
 #ifdef CONFIG_HUGETLB_PAGE
@@ -1713,12 +1715,12 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
                unlock_page(new_page);
                put_page(new_page);             /* Free it */
 
-               unlock_page(page);
+               /* Retake the callers reference and putback on LRU */
+               get_page(page);
                putback_lru_page(page);
-
-               count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR);
-               isolated = 0;
-               goto out;
+               mod_zone_page_state(page_zone(page),
+                        NR_ISOLATED_ANON + page_lru, -HPAGE_PMD_NR);
+               goto out_fail;
        }
 
        /*
@@ -1735,9 +1737,9 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
        entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
        entry = pmd_mkhuge(entry);
 
-       page_add_new_anon_rmap(new_page, vma, haddr);
-
+       pmdp_clear_flush(vma, haddr, pmd);
        set_pmd_at(mm, haddr, pmd, entry);
+       page_add_new_anon_rmap(new_page, vma, haddr);
        update_mmu_cache_pmd(vma, address, &entry);
        page_remove_rmap(page);
        /*
@@ -1756,7 +1758,6 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
        count_vm_events(PGMIGRATE_SUCCESS, HPAGE_PMD_NR);
        count_vm_numa_events(NUMA_PAGE_MIGRATE, HPAGE_PMD_NR);
 
-out:
        mod_zone_page_state(page_zone(page),
                        NR_ISOLATED_ANON + page_lru,
                        -HPAGE_PMD_NR);
@@ -1765,6 +1766,10 @@ out:
 out_fail:
        count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR);
 out_dropref:
+       entry = pmd_mknonnuma(entry);
+       set_pmd_at(mm, haddr, pmd, entry);
+       update_mmu_cache_pmd(vma, address, &entry);
+
        unlock_page(page);
        put_page(page);
        return 0;