---

yaml --- r: 343329 b: refs/heads/master c: 2897b4d h: refs/heads/master i: 343327: a0149e8 v: v3
git-mirror · Dec 13, 2012 · 650ee3c · 650ee3c
1 parent 8453743
commit 650ee3c
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 44e33e8f95171b93968c3ac3cf8516998b1db65d
+refs/heads/master: 2897b4d29d9fca82a57b09b8a216a5d604966e4b
diff --git a/trunk/mm/mmap.c b/trunk/mm/mmap.c
@@ -1488,7 +1488,11 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		 *
 		 * Answer: Yes, several device drivers can do it in their
 		 *         f_op->mmap method. -DaveM
+		 * Bug: If addr is changed, prev, rb_link, rb_parent should
+		 *      be updated for vma_link()
 		 */
+		WARN_ON_ONCE(addr != vma->vm_start);
+
 		addr = vma->vm_start;
 		pgoff = vma->vm_pgoff;
 		vm_flags = vma->vm_flags;