1 files changed, 37 insertions, 17 deletions

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 8778f58880c4..e07e27e846a2 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -87,6 +87,8 @@
 #include <linux/seq_file.h>
 #include <linux/proc_fs.h>
 #include <linux/migrate.h>
+#include <linux/rmap.h>
+#include <linux/security.h>
 
 #include <asm/tlbflush.h>
 #include <asm/uaccess.h>
@@ -587,6 +589,11 @@ static void migrate_page_add(struct page *page, struct list_head *pagelist,
                 isolate_lru_page(page, pagelist);
 }
 
+static struct page *new_node_page(struct page *page, unsigned long node, int **x)
+{
+        return alloc_pages_node(node, GFP_HIGHUSER, 0);
+}
+
 /*
  * Migrate pages from one node to a target node.
  * Returns error or the number of pages not migrated.
@@ -603,11 +610,9 @@ int migrate_to_node(struct mm_struct *mm, int source, int dest, int flags)
         check_range(mm, mm->mmap->vm_start, TASK_SIZE, &nmask,
                         flags | MPOL_MF_DISCONTIG_OK, &pagelist);
 
-        if (!list_empty(&pagelist)) {
-                err = migrate_pages_to(&pagelist, NULL, dest);
-                if (!list_empty(&pagelist))
-                        putback_lru_pages(&pagelist);
-        }
+        if (!list_empty(&pagelist))
+                err = migrate_pages(&pagelist, new_node_page, dest);
+
         return err;
 }
 
@@ -627,6 +632,10 @@ int do_migrate_pages(struct mm_struct *mm,
 
         down_read(&mm->mmap_sem);
 
+        err = migrate_vmas(mm, from_nodes, to_nodes, flags);
+        if (err)
+                goto out;
+
 /*
  * Find a 'source' bit set in 'tmp' whose corresponding 'dest'
  * bit in 'to' is not also set in 'tmp'.  Clear the found 'source'
@@ -686,7 +695,7 @@ int do_migrate_pages(struct mm_struct *mm,
                 if (err < 0)
                         break;
         }
-
+out:
         up_read(&mm->mmap_sem);
         if (err < 0)
                 return err;
@@ -694,6 +703,12 @@ int do_migrate_pages(struct mm_struct *mm,
 
 }
 
+static struct page *new_vma_page(struct page *page, unsigned long private, int **x)
+{
+        struct vm_area_struct *vma = (struct vm_area_struct *)private;
+
+        return alloc_page_vma(GFP_HIGHUSER, vma, page_address_in_vma(page, vma));
+}
 #else
 
 static void migrate_page_add(struct page *page, struct list_head *pagelist,
@@ -706,6 +721,11 @@ int do_migrate_pages(struct mm_struct *mm,
 {
         return -ENOSYS;
 }
+
+static struct page *new_vma_page(struct page *page, unsigned long private)
+{
+        return NULL;
+}
 #endif
 
 long do_mbind(unsigned long start, unsigned long len,
@@ -767,15 +787,13 @@ long do_mbind(unsigned long start, unsigned long len,
                 err = mbind_range(vma, start, end, new);
 
                 if (!list_empty(&pagelist))
-                        nr_failed = migrate_pages_to(&pagelist, vma, -1);
+                        nr_failed = migrate_pages(&pagelist, new_vma_page,
+                                                (unsigned long)vma);
 
                 if (!err && nr_failed && (flags & MPOL_MF_STRICT))
                         err = -EIO;
         }
 
-        if (!list_empty(&pagelist))
-                putback_lru_pages(&pagelist);
-
         up_write(&mm->mmap_sem);
         mpol_free(new);
         return err;
@@ -929,6 +947,10 @@ asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
                 goto out;
         }
 
+        err = security_task_movememory(task);
+        if (err)
+                goto out;
+
         err = do_migrate_pages(mm, &old, &new,
                 capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
 out:
@@ -1187,10 +1209,8 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
 
         zl = NODE_DATA(nid)->node_zonelists + gfp_zone(gfp);
         page = __alloc_pages(gfp, order, zl);
-        if (page && page_zone(page) == zl->zones[0]) {
-                zone_pcp(zl->zones[0],get_cpu())->interleave_hit++;
-                put_cpu();
-        }
+        if (page && page_zone(page) == zl->zones[0])
+                inc_zone_page_state(page, NUMA_INTERLEAVE_HIT);
         return page;
 }
 
@@ -1799,7 +1819,7 @@ static inline void check_huge_range(struct vm_area_struct *vma,
 
 int show_numa_map(struct seq_file *m, void *v)
 {
-        struct task_struct *task = m->private;
+        struct proc_maps_private *priv = m->private;
         struct vm_area_struct *vma = v;
         struct numa_maps *md;
         struct file *file = vma->vm_file;
@@ -1815,7 +1835,7 @@ int show_numa_map(struct seq_file *m, void *v)
                 return 0;
 
         mpol_to_str(buffer, sizeof(buffer),
-                        get_vma_policy(task, vma, vma->vm_start));
+                            get_vma_policy(priv->task, vma, vma->vm_start));
 
         seq_printf(m, "%08lx %s", vma->vm_start, buffer);
 
@@ -1869,7 +1889,7 @@ out:
         kfree(md);
 
         if (m->count < m->size)
-                m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0;
+                m->version = (vma != priv->tail_vma) ? vma->vm_start : 0;
         return 0;
 }