---

yaml
---
r: 87087
b: refs/heads/master
c: 69682d8
h: refs/heads/master
i:
  87085: 6b38442
  87083: bd55192
  87079: 4796e66
  87071: aa37f3b
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9afa802ff568d935dab33dd207dc25d9849f35d4
+refs/heads/master: 69682d852f5c94ee94e21174b3e8b719626c98db

trunk/ipc/shm.c

@@ -271,9 +271,10 @@ static struct mempolicy *shm_get_policy(struct vm_area_struct *vma,
 
 	if (sfd->vm_ops->get_policy)
 		pol = sfd->vm_ops->get_policy(vma, addr);
-	else if (vma->vm_policy)
+	else if (vma->vm_policy) {
 		pol = vma->vm_policy;
-	else
+		mpol_get(pol);	/* get_vma_policy() expects this */
+	} else
 		pol = current->mempolicy;
 	return pol;
 }

trunk/mm/mempolicy.c

@@ -1296,7 +1296,9 @@ struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr,
 		unsigned nid;
 
 		nid = interleave_nid(pol, vma, addr, HPAGE_SHIFT);
-		__mpol_free(pol);		/* finished with pol */
+		if (unlikely(pol != &default_policy &&
+				pol != current->mempolicy))
+			__mpol_free(pol);	/* finished with pol */
 		return NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_flags);
 	}
 
@@ -1360,6 +1362,9 @@ alloc_page_vma(gfp_t gfp, struct vm_area_struct *vma, unsigned long addr)
 		unsigned nid;
 
 		nid = interleave_nid(pol, vma, addr, PAGE_SHIFT);
+		if (unlikely(pol != &default_policy &&
+				pol != current->mempolicy))
+			__mpol_free(pol);	/* finished with pol */
 		return alloc_page_interleave(gfp, 0, nid);
 	}
 	zl = zonelist_policy(gfp, pol);