Merge branch 'parisc-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...

[cascardo/linux.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 69cad56..7a0707a 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -3068,6 +3068,14 @@ out:
        return ERR_PTR(ret);
 }
 
+bool vma_is_special_mapping(const struct vm_area_struct *vma,
+       const struct vm_special_mapping *sm)
+{
+       return vma->vm_private_data == sm &&
+               (vma->vm_ops == &special_mapping_vmops ||
+                vma->vm_ops == &legacy_special_mapping_vmops);
+}
+
 /*
  * Called with mm->mmap_sem held for writing.
  * Insert a new vma covering the given region, with the given flags.