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-rw-r--r--mm/mremap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index 84aa36f9f30..17fa018f5f3 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -288,7 +288,8 @@ static unsigned long move_vma(struct vm_area_struct *vma,
old_len = new_len;
old_addr = new_addr;
new_addr = -ENOMEM;
- }
+ } else if (vma->vm_file && vma->vm_file->f_op->mremap)
+ vma->vm_file->f_op->mremap(vma->vm_file, new_vma);
/* Conceal VM_ACCOUNT so old reservation is not undone */
if (vm_flags & VM_ACCOUNT) {