diff options
Diffstat (limited to 'drivers/char/mspec.c')
| -rw-r--r-- | drivers/char/mspec.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c index b12ffea9ba2..f1d7fa45c27 100644 --- a/drivers/char/mspec.c +++ b/drivers/char/mspec.c @@ -44,7 +44,6 @@ #include <linux/slab.h> #include <linux/numa.h> #include <asm/page.h> -#include <asm/system.h> #include <asm/pgtable.h> #include <linux/atomic.h> #include <asm/tlbflush.h> @@ -268,7 +267,7 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma, if ((vma->vm_flags & VM_WRITE) == 0) return -EPERM; - pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + pages = vma_pages(vma); vdata_size = sizeof(struct vma_data) + pages * sizeof(long); if (vdata_size <= PAGE_SIZE) vdata = kzalloc(vdata_size, GFP_KERNEL); @@ -287,7 +286,7 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma, atomic_set(&vdata->refcnt, 1); vma->vm_private_data = vdata; - vma->vm_flags |= (VM_IO | VM_RESERVED | VM_PFNMAP | VM_DONTEXPAND); + vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; if (vdata->type == MSPEC_FETCHOP || vdata->type == MSPEC_UNCACHED) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &mspec_vm_ops; |