VM, x86, PAT: add a new vm flag to track full pfnmap at mmap

Impact: cleanup

Add a new vm flag VM_PFN_AT_MMAP to identify a PFNMAP that is
fully mapped with remap_pfn_range. Patch removes the overloading
of VM_INSERTPAGE from the earlier patch.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Nick Piggin <npiggin@suse.de>
LKML-Reference: <20090313233543.GA19909@linux-os.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/memory.c b/mm/memory.c
index d7df5babcba..2032ad2fc34 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1667,7 +1667,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
          */
         if (addr == vma->vm_start && end == vma->vm_end) {
                 vma->vm_pgoff = pfn;
-                vma->vm_flags |= VM_PFNMAP_AT_MMAP;
+                vma->vm_flags |= VM_PFN_AT_MMAP;
         } else if (is_cow_mapping(vma->vm_flags))
                 return -EINVAL;
 
@@ -1680,7 +1680,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
                  * needed from higher level routine calling unmap_vmas
                  */
                 vma->vm_flags &= ~(VM_IO | VM_RESERVED | VM_PFNMAP);
-                vma->vm_flags &= ~VM_PFNMAP_AT_MMAP;
+                vma->vm_flags &= ~VM_PFN_AT_MMAP;
                 return -EINVAL;
         }