diff --git a/mm/memory.c b/mm/memory.c
index c467102..5adf2f0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2385,6 +2385,10 @@
 
 	vmf->flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE;
 
+	if (vmf->vma->vm_file &&
+	    IS_SWAPFILE(vmf->vma->vm_file->f_mapping->host))
+		return VM_FAULT_SIGBUS;
+
 	ret = vmf->vma->vm_ops->page_mkwrite(vmf);
 	/* Restore original flags so that caller is not surprised */
 	vmf->flags = old_flags;