/*
* vm_flags is protected by the mmap_sem held in write mode.
*/
- VM_ClearReadHint(vma);
vma->vm_flags = new_flags;
out:
{
struct file *file = vma->vm_file;
- if (!file)
- return -EBADF;
+ if (file->f_mapping->a_ops->get_xip_page) {
+ /* no bad return value, but ignore advice */
+ return 0;
+ }
*prev = vma;
start = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
return 0;
}
-static long madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
- unsigned long start, unsigned long end, int behavior)
+static long
+madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
+ unsigned long start, unsigned long end, int behavior)
{
+ struct file *filp = vma->vm_file;
long error = -EBADF;
+ if (!filp)
+ goto out;
+
switch (behavior) {
case MADV_NORMAL:
case MADV_SEQUENTIAL:
break;
}
+out:
return error;
}