Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:

 - a few misc things

 - the rest of MM

-  remove flex_arrays, replace with new simple radix-tree implementation

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (38 commits)
  Drop flex_arrays
  sctp: convert to genradix
  proc: commit to genradix
  generic radix trees
  selinux: convert to kvmalloc
  md: convert to kvmalloc
  openvswitch: convert to kvmalloc
  of: fix kmemleak crash caused by imbalance in early memory reservation
  mm: memblock: update comments and kernel-doc
  memblock: split checks whether a region should be skipped to a helper function
  memblock: remove memblock_{set,clear}_region_flags
  memblock: drop memblock_alloc_*_nopanic() variants
  memblock: memblock_alloc_try_nid: don't panic
  treewide: add checks for the return value of memblock_alloc*()
  swiotlb: add checks for the return value of memblock_alloc*()
  init/main: add checks for the return value of memblock_alloc*()
  mm/percpu: add checks for the return value of memblock_alloc*()
  sparc: add checks for the return value of memblock_alloc*()
  ia64: add checks for the return value of memblock_alloc*()
  arch: don't memset(0) memory returned by memblock_alloc()
  ...

8 files changed, 41 insertions, 9 deletions

diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index 7899b4f51fdd..8301a4378f50 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -556,7 +556,10 @@ static void __init ap325rxa_mv_mem_reserve(void)
 	phys_addr_t phys;
 	phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 3c59019c4695..34e5414c5563 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -1476,12 +1476,18 @@ static void __init ecovec_mv_mem_reserve(void)
 	phys_addr_t phys;
 	phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU0 memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 	ceu0_dma_membase = phys;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU1 memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 	ceu1_dma_membase = phys;
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index b8bf67c86eab..1cf9a47ac90e 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -630,7 +630,10 @@ static void __init kfr2r09_mv_mem_reserve(void)
 	phys_addr_t phys;
 	phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 03579faa4ce3..90702740f207 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -630,7 +630,10 @@ static void __init migor_mv_mem_reserve(void)
 	phys_addr_t phys;
 	phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 13c2d3ce78f4..3674064816c7 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -963,12 +963,18 @@ static void __init ms7724se_mv_mem_reserve(void)
 	phys_addr_t phys;
 	phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU0 memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 	ceu0_dma_membase = phys;
 
-	phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+	phys = memblock_phys_alloc(size, PAGE_SIZE);
+	if (!phys)
+		panic("Failed to allocate CEU1 memory\n");
+
 	memblock_free(phys, size);
 	memblock_remove(phys, size);
 	ceu1_dma_membase = phys;
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index b9f9f1a5afdc..63d63a36f6f2 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -168,7 +168,8 @@ void __init reserve_crashkernel(void)
 	crash_size = PAGE_ALIGN(resource_size(&crashk_res));
 	if (!crashk_res.start) {
 		unsigned long max = memblock_end_of_DRAM() - memory_limit;
-		crashk_res.start = __memblock_alloc_base(crash_size, PAGE_SIZE, max);
+		crashk_res.start = memblock_phys_alloc_range(crash_size,
+							     PAGE_SIZE, 0, max);
 		if (!crashk_res.start) {
 			pr_err("crashkernel allocation failed\n");
 			goto disable;
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index a0fa4de03dd5..70621324db41 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -128,6 +128,9 @@ static pmd_t * __init one_md_table_init(pud_t *pud)
 		pmd_t *pmd;
 
 		pmd = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+		if (!pmd)
+			panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+			      __func__, PAGE_SIZE, PAGE_SIZE);
 		pud_populate(&init_mm, pud, pmd);
 		BUG_ON(pmd != pmd_offset(pud, 0));
 	}
@@ -141,6 +144,9 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
 		pte_t *pte;
 
 		pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+		if (!pte)
+			panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+			      __func__, PAGE_SIZE, PAGE_SIZE);
 		pmd_populate_kernel(&init_mm, pmd, pte);
 		BUG_ON(pte != pte_offset_kernel(pmd, 0));
 	}
@@ -196,7 +202,7 @@ void __init allocate_pgdat(unsigned int nid)
 	get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
 
 #ifdef CONFIG_NEED_MULTIPLE_NODES
-	NODE_DATA(nid) = memblock_alloc_try_nid_nopanic(
+	NODE_DATA(nid) = memblock_alloc_try_nid(
 				sizeof(struct pglist_data),
 				SMP_CACHE_BYTES, MEMBLOCK_LOW_LIMIT,
 				MEMBLOCK_ALLOC_ACCESSIBLE, nid);
diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c
index c4bde6148810..f7e4439deb17 100644
--- a/arch/sh/mm/numa.c
+++ b/arch/sh/mm/numa.c
@@ -43,6 +43,10 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
 	/* Node-local pgdat */
 	NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
 					     SMP_CACHE_BYTES, nid);
+	if (!NODE_DATA(nid))
+		panic("%s: Failed to allocate %zu bytes align=0x%x nid=%d\n",
+		      __func__, sizeof(struct pglist_data), SMP_CACHE_BYTES,
+		      nid);
 
 	NODE_DATA(nid)->node_start_pfn = start_pfn;
 	NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;