Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

[linux-2.6] / mm / hugetlb.c

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 2a2f6e869401c8cbcd1b7f0a4763a047a0194f88..a8bf4ab01f86b5d0b2bab44bccb4ec5351a23d79 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -31,6 +31,8 @@ static int max_hstate;
 unsigned int default_hstate_idx;
 struct hstate hstates[HUGE_MAX_HSTATE];
 
+__initdata LIST_HEAD(huge_boot_pages);
+
 /* for command line parsing */
 static struct hstate * __initdata parsed_hstate;
 static unsigned long __initdata default_hstate_max_huge_pages;
@@ -340,13 +342,13 @@ void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
 }
 
 /* Returns true if the VMA has associated reserve pages */
-static int vma_has_private_reserves(struct vm_area_struct *vma)
+static int vma_has_reserves(struct vm_area_struct *vma)
 {
        if (vma->vm_flags & VM_SHARED)
-               return 0;
-       if (!is_vma_resv_set(vma, HPAGE_RESV_OWNER))
-               return 0;
-       return 1;
+               return 1;
+       if (is_vma_resv_set(vma, HPAGE_RESV_OWNER))
+               return 1;
+       return 0;
 }
 
 static void clear_huge_page(struct page *page,
@@ -418,7 +420,7 @@ static struct page *dequeue_huge_page_vma(struct hstate *h,
         * have no page reserves. This check ensures that reservations are
         * not "stolen". The child may still get SIGKILLed
         */
-       if (!vma_has_private_reserves(vma) &&
+       if (!vma_has_reserves(vma) &&
                        h->free_huge_pages - h->resv_huge_pages == 0)
                return NULL;
 
@@ -925,14 +927,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
        return page;
 }
 
-static __initdata LIST_HEAD(huge_boot_pages);
-
-struct huge_bootmem_page {
-       struct list_head list;
-       struct hstate *hstate;
-};
-
-static int __init alloc_bootmem_huge_page(struct hstate *h)
+__attribute__((weak)) int alloc_bootmem_huge_page(struct hstate *h)
 {
        struct huge_bootmem_page *m;
        int nr_nodes = nodes_weight(node_online_map);
@@ -1031,6 +1026,17 @@ static void __init report_hugepages(void)
        }
 }
 
+static unsigned int cpuset_mems_nr(unsigned int *array)
+{
+       int node;
+       unsigned int nr = 0;
+
+       for_each_node_mask(node, cpuset_current_mems_allowed)
+               nr += array[node];
+
+       return nr;
+}
+
 #ifdef CONFIG_SYSCTL
 #ifdef CONFIG_HIGHMEM
 static void try_to_free_low(struct hstate *h, unsigned long count)
@@ -1380,17 +1386,6 @@ static int __init hugetlb_default_setup(char *s)
 }
 __setup("default_hugepagesz=", hugetlb_default_setup);
 
-static unsigned int cpuset_mems_nr(unsigned int *array)
-{
-       int node;
-       unsigned int nr = 0;
-
-       for_each_node_mask(node, cpuset_current_mems_allowed)
-               nr += array[node];
-
-       return nr;
-}
-
 int hugetlb_sysctl_handler(struct ctl_table *table, int write,
                           struct file *file, void __user *buffer,
                           size_t *length, loff_t *ppos)
@@ -1557,8 +1552,10 @@ static void hugetlb_vm_op_close(struct vm_area_struct *vma)
 
                kref_put(&reservations->refs, resv_map_release);
 
-               if (reserve)
+               if (reserve) {
                        hugetlb_acct_memory(h, -reserve);
+                       hugetlb_put_quota(vma->vm_file->f_mapping, reserve);
+               }
        }
 }