merge linus into release branch

Conflicts:

	drivers/acpi/acpi_memhotplug.c

6 files changed, 62 insertions, 74 deletions

diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index a0f3cbd00d39..c90f124f3c71 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -520,7 +520,7 @@ static inline int tlb_batching_enabled(void)
 }
 #endif
 
-void hpte_init_native(void)
+void __init hpte_init_native(void)
 {
 	ppc_md.hpte_invalidate	= native_hpte_invalidate;
 	ppc_md.hpte_updatepp	= native_hpte_updatepp;
@@ -530,5 +530,4 @@ void hpte_init_native(void)
 	ppc_md.hpte_clear_all	= native_hpte_clear;
 	if (tlb_batching_enabled())
 		ppc_md.flush_hash_range = native_flush_hash_range;
-	htab_finish_init();
 }
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index d03fd2b4445e..3cc6d68f7117 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -167,34 +167,12 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
 		hash = hpt_hash(va, shift);
 		hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
 
-		/* The crap below can be cleaned once ppd_md.probe() can
-		 * set up the hash callbacks, thus we can just used the
-		 * normal insert callback here.
-		 */
-#ifdef CONFIG_PPC_ISERIES
-		if (machine_is(iseries))
-			ret = iSeries_hpte_insert(hpteg, va,
-						  paddr,
-						  tmp_mode,
-						  HPTE_V_BOLTED,
-						  psize);
-		else
-#endif
-#ifdef CONFIG_PPC_PSERIES
-		if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR))
-			ret = pSeries_lpar_hpte_insert(hpteg, va,
-						       paddr,
-						       tmp_mode,
-						       HPTE_V_BOLTED,
-						       psize);
-		else
-#endif
-#ifdef CONFIG_PPC_MULTIPLATFORM
-			ret = native_hpte_insert(hpteg, va,
-						 paddr,
-						 tmp_mode, HPTE_V_BOLTED,
-						 psize);
-#endif
+		DBG("htab_bolt_mapping: calling %p\n", ppc_md.hpte_insert);
+
+		BUG_ON(!ppc_md.hpte_insert);
+		ret = ppc_md.hpte_insert(hpteg, va, paddr,
+				tmp_mode, HPTE_V_BOLTED, psize);
+
 		if (ret < 0)
 			break;
 	}
@@ -413,6 +391,41 @@ void create_section_mapping(unsigned long start, unsigned long end)
 }
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
+static inline void make_bl(unsigned int *insn_addr, void *func)
+{
+	unsigned long funcp = *((unsigned long *)func);
+	int offset = funcp - (unsigned long)insn_addr;
+
+	*insn_addr = (unsigned int)(0x48000001 | (offset & 0x03fffffc));
+	flush_icache_range((unsigned long)insn_addr, 4+
+			   (unsigned long)insn_addr);
+}
+
+static void __init htab_finish_init(void)
+{
+	extern unsigned int *htab_call_hpte_insert1;
+	extern unsigned int *htab_call_hpte_insert2;
+	extern unsigned int *htab_call_hpte_remove;
+	extern unsigned int *htab_call_hpte_updatepp;
+
+#ifdef CONFIG_PPC_64K_PAGES
+	extern unsigned int *ht64_call_hpte_insert1;
+	extern unsigned int *ht64_call_hpte_insert2;
+	extern unsigned int *ht64_call_hpte_remove;
+	extern unsigned int *ht64_call_hpte_updatepp;
+
+	make_bl(ht64_call_hpte_insert1, ppc_md.hpte_insert);
+	make_bl(ht64_call_hpte_insert2, ppc_md.hpte_insert);
+	make_bl(ht64_call_hpte_remove, ppc_md.hpte_remove);
+	make_bl(ht64_call_hpte_updatepp, ppc_md.hpte_updatepp);
+#endif /* CONFIG_PPC_64K_PAGES */
+
+	make_bl(htab_call_hpte_insert1, ppc_md.hpte_insert);
+	make_bl(htab_call_hpte_insert2, ppc_md.hpte_insert);
+	make_bl(htab_call_hpte_remove, ppc_md.hpte_remove);
+	make_bl(htab_call_hpte_updatepp, ppc_md.hpte_updatepp);
+}
+
 void __init htab_initialize(void)
 {
 	unsigned long table;
@@ -525,6 +538,8 @@ void __init htab_initialize(void)
 					 mmu_linear_psize));
 	}
 
+	htab_finish_init();
+
 	DBG(" <- htab_initialize()\n");
 }
 #undef KB
@@ -787,16 +802,6 @@ void flush_hash_range(unsigned long number, int local)
 	}
 }
 
-static inline void make_bl(unsigned int *insn_addr, void *func)
-{
-	unsigned long funcp = *((unsigned long *)func);
-	int offset = funcp - (unsigned long)insn_addr;
-
-	*insn_addr = (unsigned int)(0x48000001 | (offset & 0x03fffffc));
-	flush_icache_range((unsigned long)insn_addr, 4+
-			   (unsigned long)insn_addr);
-}
-
 /*
  * low_hash_fault is called when we the low level hash code failed
  * to instert a PTE due to an hypervisor error
@@ -815,28 +820,3 @@ void low_hash_fault(struct pt_regs *regs, unsigned long address)
 	}
 	bad_page_fault(regs, address, SIGBUS);
 }
-
-void __init htab_finish_init(void)
-{
-	extern unsigned int *htab_call_hpte_insert1;
-	extern unsigned int *htab_call_hpte_insert2;
-	extern unsigned int *htab_call_hpte_remove;
-	extern unsigned int *htab_call_hpte_updatepp;
-
-#ifdef CONFIG_PPC_64K_PAGES
-	extern unsigned int *ht64_call_hpte_insert1;
-	extern unsigned int *ht64_call_hpte_insert2;
-	extern unsigned int *ht64_call_hpte_remove;
-	extern unsigned int *ht64_call_hpte_updatepp;
-
-	make_bl(ht64_call_hpte_insert1, ppc_md.hpte_insert);
-	make_bl(ht64_call_hpte_insert2, ppc_md.hpte_insert);
-	make_bl(ht64_call_hpte_remove, ppc_md.hpte_remove);
-	make_bl(ht64_call_hpte_updatepp, ppc_md.hpte_updatepp);
-#endif /* CONFIG_PPC_64K_PAGES */
-
-	make_bl(htab_call_hpte_insert1, ppc_md.hpte_insert);
-	make_bl(htab_call_hpte_insert2, ppc_md.hpte_insert);
-	make_bl(htab_call_hpte_remove, ppc_md.hpte_remove);
-	make_bl(htab_call_hpte_updatepp, ppc_md.hpte_updatepp);
-}
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 9e30f968c184..d454caada265 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -41,6 +41,7 @@
 #include <linux/idr.h>
 #include <linux/nodemask.h>
 #include <linux/module.h>
+#include <linux/poison.h>
 
 #include <asm/pgalloc.h>
 #include <asm/page.h>
@@ -90,7 +91,7 @@ void free_initmem(void)
 
 	addr = (unsigned long)__init_begin;
 	for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
-		memset((void *)addr, 0xcc, PAGE_SIZE);
+		memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
 		free_page(addr);
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 69f3b9a20beb..089d939a0b3e 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -114,15 +114,20 @@ void online_page(struct page *page)
 	num_physpages++;
 }
 
-int __devinit add_memory(u64 start, u64 size)
+#ifdef CONFIG_NUMA
+int memory_add_physaddr_to_nid(u64 start)
+{
+	return hot_add_scn_to_nid(start);
+}
+#endif
+
+int __devinit arch_add_memory(int nid, u64 start, u64 size)
 {
 	struct pglist_data *pgdata;
 	struct zone *zone;
-	int nid;
 	unsigned long start_pfn = start >> PAGE_SHIFT;
 	unsigned long nr_pages = size >> PAGE_SHIFT;
 
-	nid = hot_add_scn_to_nid(start);
 	pgdata = NODE_DATA(nid);
 
 	start = (unsigned long)__va(start);
diff --git a/arch/powerpc/mm/mmu_context_64.c b/arch/powerpc/mm/mmu_context_64.c
index 65d18dca266f..e2051efa09c5 100644
--- a/arch/powerpc/mm/mmu_context_64.c
+++ b/arch/powerpc/mm/mmu_context_64.c
@@ -44,7 +44,9 @@ again:
 		return err;
 
 	if (index > MAX_CONTEXT) {
+		spin_lock(&mmu_context_lock);
 		idr_remove(&mmu_context_idr, index);
+		spin_unlock(&mmu_context_lock);
 		return -ENOMEM;
 	}
 
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index aa98cb3b59d8..fbe23933f731 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -334,7 +334,7 @@ out:
 	return nid;
 }
 
-static int cpu_numa_callback(struct notifier_block *nfb,
+static int __cpuinit cpu_numa_callback(struct notifier_block *nfb,
 			     unsigned long action,
 			     void *hcpu)
 {
@@ -609,14 +609,15 @@ static void __init *careful_allocation(int nid, unsigned long size,
 	return (void *)ret;
 }
 
+static struct notifier_block __cpuinitdata ppc64_numa_nb = {
+	.notifier_call = cpu_numa_callback,
+	.priority = 1 /* Must run before sched domains notifier. */
+};
+
 void __init do_init_bootmem(void)
 {
 	int nid;
 	unsigned int i;
-	static struct notifier_block ppc64_numa_nb = {
-		.notifier_call = cpu_numa_callback,
-		.priority = 1 /* Must run before sched domains notifier. */
-	};
 
 	min_low_pfn = 0;
 	max_low_pfn = lmb_end_of_DRAM() >> PAGE_SHIFT;