diff options
| -rw-r--r-- | mm/mmap.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 8ba51e73f626..83adf86fd62b 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2270,6 +2270,7 @@ int split_vma(struct vma_iterator *vmi, struct vm_area_struct *vma, static inline int munmap_sidetree(struct vm_area_struct *vma, struct ma_state *mas_detach) { + vma_start_write(vma); mas_set_range(mas_detach, vma->vm_start, vma->vm_end - 1); if (mas_store_gfp(mas_detach, vma, GFP_KERNEL)) return -ENOMEM; |