7 files changed, 11 insertions, 18 deletions

diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/ppc/kernel/dma-mapping.c
index 685fd0defe23..61465ec88bc7 100644
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/ppc/kernel/dma-mapping.c
@@ -223,6 +223,8 @@ __dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp)
                 pte_t *pte = consistent_pte + CONSISTENT_OFFSET(vaddr);
                 struct page *end = page + (1 << order);
 
+                split_page(page, order);
+
                 /*
                  * Set the "dma handle"
                  */
@@ -231,7 +233,6 @@ __dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp)
                 do {
                         BUG_ON(!pte_none(*pte));
 
-                        set_page_count(page, 1);
                         SetPageReserved(page);
                         set_pte_at(&init_mm, vaddr,
                                    pte, mk_pte(page, pgprot_noncached(PAGE_KERNEL)));
@@ -244,7 +245,6 @@ __dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp)
                  * Free the otherwise unused pages.
                  */
                 while (page < end) {
-                        set_page_count(page, 1);
                         __free_page(page);
                         page++;
                 }
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 677c571aa276..0d8b88219d38 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -1,6 +1,4 @@
 /*
- * arch/ppc/kernel/head_44x.S
- *
  * Kernel execution entry point code.
  *
  *    Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index c1e89ad0684d..ec53c7d65f2b 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -1,6 +1,4 @@
 /*
- *  arch/ppc/kernel/except_8xx.S
- *
  *  PowerPC version
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
  *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index 8d60fa99fc4b..dd86bbed7627 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -1,6 +1,4 @@
 /*
- * arch/ppc/kernel/head_fsl_booke.S
- *
  * Kernel execution entry point code.
  *
  *    Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
@@ -316,6 +314,7 @@ skpinv:	addi	r6,r6,1				/* Increment */
          */
         lis     r2,DBCR0_IDM@h
         mtspr   SPRN_DBCR0,r2
+        isync
         /* clear any residual debug events */
         li      r2,-1
         mtspr   SPRN_DBSR,r2
@@ -1002,12 +1001,15 @@ _GLOBAL(giveup_fpu)
 _GLOBAL(abort)
         li      r13,0
         mtspr   SPRN_DBCR0,r13          /* disable all debug events */
+        isync
         mfmsr   r13
         ori     r13,r13,MSR_DE@l        /* Enable Debug Events */
         mtmsr   r13
+        isync
         mfspr   r13,SPRN_DBCR0
         lis     r13,(DBCR0_IDM|DBCR0_RST_CHIP)@h
         mtspr   SPRN_DBCR0,r13
+        isync
 
 _GLOBAL(set_context)
 
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index c08ab432e958..53e9deacee82 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -168,9 +168,8 @@ int show_cpuinfo(struct seq_file *m, void *v)
                 /* Show summary information */
 #ifdef CONFIG_SMP
                 unsigned long bogosum = 0;
-                for (i = 0; i < NR_CPUS; ++i)
-                        if (cpu_online(i))
-                                bogosum += cpu_data[i].loops_per_jiffy;
+                for_each_online_cpu(i)
+                        bogosum += cpu_data[i].loops_per_jiffy;
                 seq_printf(m, "total bogomips\t: %lu.%02lu\n",
                            bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
 #endif /* CONFIG_SMP */
@@ -712,9 +711,8 @@ int __init ppc_init(void)
         if ( ppc_md.progress ) ppc_md.progress("             ", 0xffff);
 
         /* register CPU devices */
-        for (i = 0; i < NR_CPUS; i++)
-                if (cpu_possible(i))
-                        register_cpu(&cpu_devices[i], i, NULL);
+        for_each_cpu(i)
+                register_cpu(&cpu_devices[i], i, NULL);
 
         /* call platform init */
         if (ppc_md.init != NULL) {
diff --git a/arch/ppc/kernel/smp-tbsync.c b/arch/ppc/kernel/smp-tbsync.c
index 2c9cd95bcea6..6a5694fcc711 100644
--- a/arch/ppc/kernel/smp-tbsync.c
+++ b/arch/ppc/kernel/smp-tbsync.c
@@ -126,8 +126,7 @@ smp_generic_give_timebase( void )
         printk("Synchronizing timebase\n");
 
         /* if this fails then this kernel won't work anyway... */
-        tbsync = kmalloc( sizeof(*tbsync), GFP_KERNEL );
-        memset( tbsync, 0, sizeof(*tbsync) );
+        tbsync = kzalloc( sizeof(*tbsync), GFP_KERNEL );
         mb();
         running = 1;
 
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 6d0a1838d94c..1c0d68026abd 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -1,6 +1,4 @@
 /*
- *  arch/ppc/kernel/traps.c
- *
  *  Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
  *
  *  This program is free software; you can redistribute it and/or