[PATCH 2/7] copy_vma for hugetlbfs

[Adam Litke]

Signed-off-by: Adam Litke <[EMAIL PROTECTED]>
---

 fs/hugetlbfs/inode.c |    6 ++++++
 mm/memory.c          |    4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 4f4cd13..c0a7984 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -36,6 +36,7 @@
 static struct super_operations hugetlbfs_ops;
 static const struct address_space_operations hugetlbfs_aops;
 const struct file_operations hugetlbfs_file_operations;
+static struct pagetable_operations_struct hugetlbfs_pagetable_ops;
 static struct inode_operations hugetlbfs_dir_inode_operations;
 static struct inode_operations hugetlbfs_inode_operations;
 
@@ -70,6 +71,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct 
vm_area_struct *vma)
         */
        vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
        vma->vm_ops = &hugetlb_vm_ops;
+       vma->pagetable_ops = &hugetlbfs_pagetable_ops;
 
        vma_len = (loff_t)(vma->vm_end - vma->vm_start);
 
@@ -560,6 +562,10 @@ const struct file_operations hugetlbfs_file_operations = {
        .get_unmapped_area      = hugetlb_get_unmapped_area,
 };
 
+static struct pagetable_operations_struct hugetlbfs_pagetable_ops = {
+       .copy_vma               = copy_hugetlb_page_range,
+};
+
 static struct inode_operations hugetlbfs_dir_inode_operations = {
        .create         = hugetlbfs_create,
        .lookup         = simple_lookup,
diff --git a/mm/memory.c b/mm/memory.c
index ef09f0a..80eafd5 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -602,8 +602,8 @@ int copy_page_range(struct mm_struct *dst_mm, struct 
mm_struct *src_mm,
                        return 0;
        }
 
-       if (is_vm_hugetlb_page(vma))
-               return copy_hugetlb_page_range(dst_mm, src_mm, vma);
+       if (has_pt_op(vma, copy_vma))
+               return pt_op(vma, copy_vma)(dst_mm, src_mm, vma);
 
        dst_pgd = pgd_offset(dst_mm, addr);
        src_pgd = pgd_offset(src_mm, addr);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/