1 files changed, 17 insertions, 0 deletions

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 6e5bd42f386..b14be3f781c 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -31,6 +31,7 @@
 #include <linux/statfs.h>
 #include <linux/security.h>
 #include <linux/magic.h>
+#include <linux/migrate.h>
 
 #include <asm/uaccess.h>
 
@@ -455,6 +456,7 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
         inode = new_inode(sb);
         if (inode) {
                 struct hugetlbfs_inode_info *info;
+                inode->i_ino = get_next_ino();
                 inode->i_mode = mode;
                 inode->i_uid = uid;
                 inode->i_gid = gid;
@@ -573,6 +575,19 @@ static int hugetlbfs_set_page_dirty(struct page *page)
         return 0;
 }
 
+static int hugetlbfs_migrate_page(struct address_space *mapping,
+                                struct page *newpage, struct page *page)
+{
+        int rc;
+
+        rc = migrate_huge_page_move_mapping(mapping, newpage, page);
+        if (rc)
+                return rc;
+        migrate_page_copy(newpage, page);
+
+        return 0;
+}
+
 static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
         struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(dentry->d_sb);
@@ -659,6 +674,7 @@ static const struct address_space_operations hugetlbfs_aops = {
         .write_begin    = hugetlbfs_write_begin,
         .write_end      = hugetlbfs_write_end,
         .set_page_dirty = hugetlbfs_set_page_dirty,
+        .migratepage    = hugetlbfs_migrate_page,
 };
 
 
@@ -674,6 +690,7 @@ const struct file_operations hugetlbfs_file_operations = {
         .mmap                   = hugetlbfs_file_mmap,
         .fsync                  = noop_fsync,
         .get_unmapped_area      = hugetlb_get_unmapped_area,
+        .llseek         = default_llseek,
 };
 
 static const struct inode_operations hugetlbfs_dir_inode_operations = {