X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fallocpercpu.c;h=00b02623f008e924856329770c68ad0d3c3d7917;hb=d96a2a5c6479342229416565944b56bc7a2b1a60;hp=eaa9abeea5364f6578c53c607d17955e3aebaef1;hpb=a12f66fccf2e266ad197df142b5ebafc6a169a8c;p=linux-2.6

diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c
index eaa9abeea5..00b02623f0 100644
--- a/mm/allocpercpu.c
+++ b/mm/allocpercpu.c
@@ -17,10 +17,9 @@
 void percpu_depopulate(void *__pdata, int cpu)
 {
 	struct percpu_data *pdata = __percpu_disguise(__pdata);
-	if (pdata->ptrs[cpu]) {
-		kfree(pdata->ptrs[cpu]);
-		pdata->ptrs[cpu] = NULL;
-	}
+
+	kfree(pdata->ptrs[cpu]);
+	pdata->ptrs[cpu] = NULL;
 }
 EXPORT_SYMBOL_GPL(percpu_depopulate);
 
@@ -54,12 +53,9 @@ void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu)
 	int node = cpu_to_node(cpu);
 
 	BUG_ON(pdata->ptrs[cpu]);
-	if (node_online(node)) {
-		/* FIXME: kzalloc_node(size, gfp, node) */
-		pdata->ptrs[cpu] = kmalloc_node(size, gfp, node);
-		if (pdata->ptrs[cpu])
-			memset(pdata->ptrs[cpu], 0, size);
-	} else
+	if (node_online(node))
+		pdata->ptrs[cpu] = kmalloc_node(size, gfp|__GFP_ZERO, node);
+	else
 		pdata->ptrs[cpu] = kzalloc(size, gfp);
 	return pdata->ptrs[cpu];
 }
@@ -123,6 +119,8 @@ EXPORT_SYMBOL_GPL(__percpu_alloc_mask);
  */
 void percpu_free(void *__pdata)
 {
+	if (unlikely(!__pdata))
+		return;
 	__percpu_depopulate_mask(__pdata, &cpu_possible_map);
 	kfree(__percpu_disguise(__pdata));
 }