Merge branch 'master' into x86/memblock

Conflicts & resolutions:

* arch/x86/xen/setup.c

	dc91c728fd "xen: allow extra memory to be in multiple regions"
	24aa07882b "memblock, x86: Replace memblock_x86_reserve/free..."

	conflicted on xen_add_extra_mem() updates.  The resolution is
	trivial as the latter just want to replace
	memblock_x86_reserve_range() with memblock_reserve().

* drivers/pci/intel-iommu.c

	166e9278a3f "x86/ia64: intel-iommu: move to drivers/iommu/"
	5dfe8660a3d "bootmem: Replace work_with_active_regions() with..."

	conflicted as the former moved the file under drivers/iommu/.
	Resolved by applying the chnages from the latter on the moved
	file.

* mm/Kconfig

	6661672053a "memblock: add NO_BOOTMEM config symbol"
	c378ddd53f9 "memblock, x86: Make ARCH_DISCARD_MEMBLOCK a config option"

	conflicted trivially.  Both added config options.  Just
	letting both add their own options resolves the conflict.

* mm/memblock.c

	d1f0ece6cdc "mm/memblock.c: small function definition fixes"
	ed7b56a799c "memblock: Remove memblock_memory_can_coalesce()"

	confliected.  The former updates function removed by the
	latter.  Resolution is trivial.

Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 12 insertions, 10 deletions

diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 53bffc6c293e..2d123f94a8df 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -133,10 +133,13 @@ struct page *lookup_cgroup_page(struct page_cgroup *pc)
 static void *__meminit alloc_page_cgroup(size_t size, int nid)
 {
 	void *addr = NULL;
+	gfp_t flags = GFP_KERNEL | __GFP_NOWARN;
 
-	addr = alloc_pages_exact_nid(nid, size, GFP_KERNEL | __GFP_NOWARN);
-	if (addr)
+	addr = alloc_pages_exact_nid(nid, size, flags);
+	if (addr) {
+		kmemleak_alloc(addr, size, 1, flags);
 		return addr;
+	}
 
 	if (node_state(nid, N_HIGH_MEMORY))
 		addr = vmalloc_node(size, nid);
@@ -225,8 +228,8 @@ int __meminit online_page_cgroup(unsigned long start_pfn,
 	unsigned long start, end, pfn;
 	int fail = 0;
 
-	start = start_pfn & ~(PAGES_PER_SECTION - 1);
-	end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
+	start = SECTION_ALIGN_DOWN(start_pfn);
+	end = SECTION_ALIGN_UP(start_pfn + nr_pages);
 
 	if (nid == -1) {
 		/*
@@ -258,8 +261,8 @@ int __meminit offline_page_cgroup(unsigned long start_pfn,
 {
 	unsigned long start, end, pfn;
 
-	start = start_pfn & ~(PAGES_PER_SECTION - 1);
-	end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
+	start = SECTION_ALIGN_DOWN(start_pfn);
+	end = SECTION_ALIGN_UP(start_pfn + nr_pages);
 
 	for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION)
 		__free_page_cgroup(pfn);
@@ -357,7 +360,7 @@ struct swap_cgroup_ctrl {
 	spinlock_t	lock;
 };
 
-struct swap_cgroup_ctrl swap_cgroup_ctrl[MAX_SWAPFILES];
+static struct swap_cgroup_ctrl swap_cgroup_ctrl[MAX_SWAPFILES];
 
 struct swap_cgroup {
 	unsigned short		id;
@@ -513,11 +516,10 @@ int swap_cgroup_swapon(int type, unsigned long max_pages)
 	length = DIV_ROUND_UP(max_pages, SC_PER_PAGE);
 	array_size = length * sizeof(void *);
 
-	array = vmalloc(array_size);
+	array = vzalloc(array_size);
 	if (!array)
 		goto nomem;
 
-	memset(array, 0, array_size);
 	ctrl = &swap_cgroup_ctrl[type];
 	mutex_lock(&swap_cgroup_mutex);
 	ctrl->length = length;
@@ -537,7 +539,7 @@ int swap_cgroup_swapon(int type, unsigned long max_pages)
 nomem:
 	printk(KERN_INFO "couldn't allocate enough memory for swap_cgroup.\n");
 	printk(KERN_INFO
-		"swap_cgroup can be disabled by noswapaccount boot option\n");
+		"swap_cgroup can be disabled by swapaccount=0 boot option\n");
 	return -ENOMEM;
 }