3 files changed, 26 insertions, 27 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ceb3ebb3c399..67f29516662a 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -107,7 +107,7 @@ struct page *alloc_huge_page(struct vm_area_struct *vma, unsigned long addr)
         set_page_count(page, 1);
         page[1].mapping = (void *)free_huge_page;
         for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); ++i)
-                clear_highpage(&page[i]);
+                clear_user_highpage(&page[i], addr);
         return page;
 }
 
@@ -391,12 +391,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
 
         if (!new_page) {
                 page_cache_release(old_page);
-
-                /* Logically this is OOM, not a SIGBUS, but an OOM
-                 * could cause the kernel to go killing other
-                 * processes which won't help the hugepage situation
-                 * at all (?) */
-                return VM_FAULT_SIGBUS;
+                return VM_FAULT_OOM;
         }
 
         spin_unlock(&mm->page_table_lock);
@@ -444,15 +439,7 @@ retry:
                 page = alloc_huge_page(vma, address);
                 if (!page) {
                         hugetlb_put_quota(mapping);
-                        /*
-                         * No huge pages available. So this is an OOM
-                         * condition but we do not want to trigger the OOM
-                         * killer, so we return VM_FAULT_SIGBUS.
-                         *
-                         * A program using hugepages may fault with Bus Error
-                         * because no huge pages are available in the cpuset, per
-                         * memory policy or because all are in use!
-                         */
+                        ret = VM_FAULT_OOM;
                         goto out;
                 }
 
diff --git a/mm/slob.c b/mm/slob.c
index 1c240c4b71d9..a1f42bdc0245 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -336,7 +336,7 @@ EXPORT_SYMBOL(slab_reclaim_pages);
 
 #ifdef CONFIG_SMP
 
-void *__alloc_percpu(size_t size, size_t align)
+void *__alloc_percpu(size_t size)
 {
         int i;
         struct percpu_data *pdata = kmalloc(sizeof (*pdata), GFP_KERNEL);
diff --git a/mm/swap.c b/mm/swap.c
index bc2442a7b0ee..76247424dea1 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -34,19 +34,22 @@
 /* How many pages do we try to swap or page in/out together? */
 int page_cluster;
 
-void put_page(struct page *page)
+static void put_compound_page(struct page *page)
 {
-        if (unlikely(PageCompound(page))) {
-                page = (struct page *)page_private(page);
-                if (put_page_testzero(page)) {
-                        void (*dtor)(struct page *page);
+        page = (struct page *)page_private(page);
+        if (put_page_testzero(page)) {
+                void (*dtor)(struct page *page);
 
-                        dtor = (void (*)(struct page *))page[1].mapping;
-                        (*dtor)(page);
-                }
-                return;
+                dtor = (void (*)(struct page *))page[1].mapping;
+                (*dtor)(page);
         }
-        if (put_page_testzero(page))
+}
+
+void put_page(struct page *page)
+{
+        if (unlikely(PageCompound(page)))
+                put_compound_page(page);
+        else if (put_page_testzero(page))
                 __page_cache_release(page);
 }
 EXPORT_SYMBOL(put_page);
@@ -244,6 +247,15 @@ void release_pages(struct page **pages, int nr, int cold)
                 struct page *page = pages[i];
                 struct zone *pagezone;
 
+                if (unlikely(PageCompound(page))) {
+                        if (zone) {
+                                spin_unlock_irq(&zone->lru_lock);
+                                zone = NULL;
+                        }
+                        put_compound_page(page);
+                        continue;
+                }
+
                 if (!put_page_testzero(page))
                         continue;