---

yaml --- r: 348502 b: refs/heads/master c: e53289c h: refs/heads/master v: v3
git-mirror · Jan 9, 2013 · 7afd825 · 7afd825
1 parent 27faa42
commit 7afd825
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 08c097fc3bb283299a6915a6a3795edab85979b1
+refs/heads/master: e53289c0c5e5a24e29e571eba7af05c845c10890
diff --git a/trunk/mm/memory.c b/trunk/mm/memory.c
@@ -3711,6 +3711,14 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (pmd_trans_huge(orig_pmd)) {
 			unsigned int dirty = flags & FAULT_FLAG_WRITE;
 
+			/*
+			 * If the pmd is splitting, return and retry the
+			 * the fault.  Alternative: wait until the split
+			 * is done, and goto retry.
+			 */
+			if (pmd_trans_splitting(orig_pmd))
+				return 0;
+
 			if (pmd_numa(orig_pmd))
 				return do_huge_pmd_numa_page(mm, vma, address,
 							     orig_pmd, pmd);