Fix staging driver use of VM_RESERVED

The VM_RESERVED flag was killed off in commit 314e51b9851b ("mm: kill
vma flag VM_RESERVED and mm->reserved_vm counter"), and replaced by the
proper semantic flags (eg "don't core-dump" etc).  But there was a new
use of VM_RESERVED that got missed by the merge.

Fix the remaining use of VM_RESERVED in the vfio_pci driver, replacing
the VM_RESERVED flag with VM_DONTEXPAND | VM_DONTDUMP.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation,org>

diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 6968b72..6d369fe 100644 (file)
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -461,7 +461,7 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma)
        }
 
        vma->vm_private_data = vdev;
-       vma->vm_flags |= (VM_IO | VM_RESERVED);
+       vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
        vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
        phys = (pci_resource_start(pdev, index) >> PAGE_SHIFT) + pgoff;