Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

4 files changed, 25 insertions, 9 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 74c1b6b0b37b..51c9e2c01640 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -401,12 +401,20 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages)
 	struct page *page;
 	unsigned long nr_pages;
 
+	/*
+	 * We want to release as many surplus pages as possible, spread
+	 * evenly across all nodes. Iterate across all nodes until we
+	 * can no longer free unreserved surplus pages. This occurs when
+	 * the nodes with surplus pages have no free pages.
+	 */
+	unsigned long remaining_iterations = num_online_nodes();
+
 	/* Uncommit the reservation */
 	resv_huge_pages -= unused_resv_pages;
 
 	nr_pages = min(unused_resv_pages, surplus_huge_pages);
 
-	while (nr_pages) {
+	while (remaining_iterations-- && nr_pages) {
 		nid = next_node(nid, node_online_map);
 		if (nid == MAX_NUMNODES)
 			nid = first_node(node_online_map);
@@ -424,6 +432,7 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages)
 			surplus_huge_pages--;
 			surplus_huge_pages_node[nid]--;
 			nr_pages--;
+			remaining_iterations = num_online_nodes();
 		}
 	}
 }
@@ -671,9 +680,11 @@ int hugetlb_report_node_meminfo(int nid, char *buf)
 {
 	return sprintf(buf,
 		"Node %d HugePages_Total: %5u\n"
-		"Node %d HugePages_Free:  %5u\n",
+		"Node %d HugePages_Free:  %5u\n"
+		"Node %d HugePages_Surp:  %5u\n",
 		nid, nr_huge_pages_node[nid],
-		nid, free_huge_pages_node[nid]);
+		nid, free_huge_pages_node[nid],
+		nid, surplus_huge_pages_node[nid]);
 }
 
 /* Return the number pages of memory we physically have, in PAGE_SIZE units. */
diff --git a/mm/slab.c b/mm/slab.c
index bb4070e1079f..04b308c3bc54 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1481,7 +1481,7 @@ void __init kmem_cache_init(void)
 	list_add(&cache_cache.next, &cache_chain);
 	cache_cache.colour_off = cache_line_size();
 	cache_cache.array[smp_processor_id()] = &initarray_cache.cache;
-	cache_cache.nodelists[node] = &initkmem_list3[CACHE_CACHE];
+	cache_cache.nodelists[node] = &initkmem_list3[CACHE_CACHE + node];
 
 	/*
 	 * struct kmem_cache size depends on nr_node_ids, which
@@ -1602,7 +1602,7 @@ void __init kmem_cache_init(void)
 		int nid;
 
 		for_each_online_node(nid) {
-			init_list(&cache_cache, &initkmem_list3[CACHE_CACHE], nid);
+			init_list(&cache_cache, &initkmem_list3[CACHE_CACHE + nid], nid);
 
 			init_list(malloc_sizes[INDEX_AC].cs_cachep,
 				  &initkmem_list3[SIZE_AC + nid], nid);
diff --git a/mm/slub.c b/mm/slub.c
index ca71d5b81e4a..84ed734b96b3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1470,6 +1470,9 @@ static void *__slab_alloc(struct kmem_cache *s,
 	void **object;
 	struct page *new;
 
+	/* We handle __GFP_ZERO in the caller */
+	gfpflags &= ~__GFP_ZERO;
+
 	if (!c->page)
 		goto new_slab;
 
@@ -2685,6 +2688,7 @@ void kfree(const void *x)
 }
 EXPORT_SYMBOL(kfree);
 
+#if defined(SLUB_DEBUG) || defined(CONFIG_SLABINFO)
 static unsigned long count_partial(struct kmem_cache_node *n)
 {
 	unsigned long flags;
@@ -2697,6 +2701,7 @@ static unsigned long count_partial(struct kmem_cache_node *n)
 	spin_unlock_irqrestore(&n->list_lock, flags);
 	return x;
 }
+#endif
 
 /*
  * kmem_cache_shrink removes empty slabs from the partial lists and sorts
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index cd75b21dd4c3..99c4f36eb8a3 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -76,7 +76,7 @@ pte_t * __meminit vmemmap_pte_populate(pmd_t *pmd, unsigned long addr, int node)
 		pte_t entry;
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
-			return 0;
+			return NULL;
 		entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL);
 		set_pte_at(&init_mm, addr, pte, entry);
 	}
@@ -89,7 +89,7 @@ pmd_t * __meminit vmemmap_pmd_populate(pud_t *pud, unsigned long addr, int node)
 	if (pmd_none(*pmd)) {
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
-			return 0;
+			return NULL;
 		pmd_populate_kernel(&init_mm, pmd, p);
 	}
 	return pmd;
@@ -101,7 +101,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
 	if (pud_none(*pud)) {
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
-			return 0;
+			return NULL;
 		pud_populate(&init_mm, pud, p);
 	}
 	return pud;
@@ -113,7 +113,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
 	if (pgd_none(*pgd)) {
 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
 		if (!p)
-			return 0;
+			return NULL;
 		pgd_populate(&init_mm, pgd, p);
 	}
 	return pgd;