Merge samba.org:/scratch/anton/linux-2.5_ppc64_Makefilecleanup

into samba.org:/scratch/anton/linux-2.5_ppc64_new

arch/ppc64/kernel/head.S

@@ -90,7 +90,9 @@ _STATIC(__start)
 	 * between physical addresses and absolute addresses) and
 	 * to the pidhash table (also used by the debugger) */
 	.llong msChunks-KERNELBASE
+#ifdef CONFIG_PPC_ISERIES
 	.llong pidhash-KERNELBASE
+#endif
 
 	/* Offset 0x38 - Pointer to start of embedded System.map */
 	.globl	embedded_sysmap_start

arch/ppc64/kernel/sys_ppc32.c

@@ -238,8 +238,6 @@ asmlinkage long sys32_writev(u32 fd, struct iovec32 *vector, u32 count)
 	return ret;
 }
 
-
-
 static inline int get_flock(struct flock *kfl, struct flock32 *ufl)
 {
 	int err;
@@ -656,7 +654,7 @@ asmlinkage long sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
 	char *bits;
 	unsigned long nn;
 	long timeout;
-	int ret, size;
+	int ret, size, max_fdset;
 
 	timeout = MAX_SCHEDULE_TIMEOUT;
 	if (tvp) {
@@ -679,8 +677,11 @@ asmlinkage long sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
 	ret = -EINVAL;
 	if (n < 0)
 		goto out_nofds;
-	if (n > current->files->max_fdset)
-		n = current->files->max_fdset;
+
+	/* max_fdset can increase, so grab it once to avoid race */
+	max_fdset = current->files->max_fdset;
+	if (n > max_fdset)
+		n = max_fdset;
 
 	/*
 	 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),

arch/ppc64/kernel/time.c

@@ -469,11 +469,6 @@ void __init time_init(void)
 	last_rtc_update = xtime.tv_sec;
 	write_unlock_irqrestore(&xtime_lock, flags);
 
-#ifdef CONFIG_PPC_ISERIES
-	/* HACK HACK This allows the iSeries profiling to use /proc/profile */
-	prof_shift = 0;
-#endif
-
 	/* Not exact, but the timer interrupt takes care of this */
 	set_dec(tb_ticks_per_jiffy);
 }

arch/ppc64/mm/init.c

@@ -99,16 +99,18 @@ mmu_gather_t     mmu_gathers[NR_CPUS];
 
 void show_mem(void)
 {
-	int pfn, total = 0, reserved = 0;
+	int total = 0, reserved = 0;
 	int shared = 0, cached = 0;
 	struct page *page;
+	pg_data_t *pgdat;
+	unsigned long i;
 
 	printk("Mem-info:\n");
 	show_free_areas();
 	printk("Free swap:       %6dkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
-	pfn = max_mapnr;
-	while (pfn-- > 0) {
-		page = pfn_to_page(pfn);
+	for_each_pgdat(pgdat) {
+		for (i = 0; i < pgdat->node_size; i++) {
+			page = pgdat->node_mem_map + i;
 			total++;
 			if (PageReserved(page))
 				reserved++;
@@ -117,6 +119,7 @@ void show_mem(void)
 			else if (page_count(page))
 				shared += page_count(page) - 1;
 		}
+	}
 	printk("%d pages of RAM\n",total);
 	printk("%d reserved pages\n",reserved);
 	printk("%d pages shared\n",shared);
@@ -498,13 +501,6 @@ void __init paging_init(void)
 }
 #endif
 
-extern unsigned long prof_shift;
-extern unsigned long prof_len;
-extern unsigned int * prof_buffer;
-extern unsigned long dprof_shift;
-extern unsigned long dprof_len;
-extern unsigned int * dprof_buffer;
-
 void initialize_paca_hardware_interrupt_stack(void);
 
 void __init mem_init(void)
@@ -518,9 +514,8 @@ void __init mem_init(void)
 	int datapages = 0;
 	int initpages = 0;
 
-	max_mapnr = max_low_pfn;
+	num_physpages = max_low_pfn;	/* RAM is assumed contiguous */
 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-	num_physpages = max_mapnr;	/* RAM is assumed contiguous */
 	max_pfn = max_low_pfn;
 
 #ifdef CONFIG_DISCONTIGMEM
@@ -542,6 +537,8 @@ void __init mem_init(void)
 	       PAGE_OFFSET, (unsigned long)__va(lmb_end_of_DRAM()));
 }
 #else
+	max_mapnr = num_physpages;
+
 	totalram_pages += free_all_bootmem();
 
 	if ( sysmap_size )
@@ -577,10 +574,6 @@ void __init mem_init(void)
 
 #ifdef CONFIG_PPC_ISERIES
 	create_virtual_bus_tce_table();
-	/* HACK HACK This allows the iSeries profiling to use /proc/profile */
-	prof_shift = dprof_shift;
-	prof_len = dprof_len;
-	prof_buffer = dprof_buffer;
 #endif
 }
 

include/asm-ppc64/mmzone.h

@@ -8,6 +8,7 @@
 #define _ASM_MMZONE_H_
 
 #include <linux/config.h>
+#include <asm/smp.h>
 
 #ifdef CONFIG_DISCONTIGMEM
 
@@ -21,7 +22,6 @@ extern int numa_node_exists[];
 extern int numa_cpu_lookup_table[];
 extern int numa_memory_lookup_table[];
 
-#define MAX_NUMNODES 16
 #define MAX_MEMORY (1UL << 41)
 /* 256MB regions */
 #define MEMORY_INCREMENT_SHIFT 28
@@ -53,7 +53,6 @@ static inline int pa_to_nid(unsigned long pa)
  */
 #define NODE_DATA(nid)		(&node_data[nid])
 
-#define node_startnr(nid)	(NODE_DATA(nid)->node_start_mapnr)
 #define node_size(nid)		(NODE_DATA(nid)->node_size)
 #define node_localnr(pfn, nid)	((pfn) - NODE_DATA(nid)->node_start_pfn)
 
@@ -87,6 +86,7 @@ static inline int __cpu_to_node(int cpu)
 
 #define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)	(NODE_DATA(nid)->node_end_pfn)
 
 #define local_mapnr(kvaddr) \
 	( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) 
@@ -112,5 +112,8 @@ static inline int __cpu_to_node(int cpu)
 	 page_zone(__tmp)->zone_start_pfn); \
 })
 
+/* XXX fix for discontiguous physical memory */
+#define discontigmem_pfn_valid(pfn)		((pfn) < num_physpages)
+
 #endif /* CONFIG_DISCONTIGMEM */
 #endif /* _ASM_MMZONE_H_ */

include/asm-ppc64/numnodes.h

+#ifndef _ASM_MAX_NUMNODES_H
+#define _ASM_MAX_NUMNODES_H
+
+#define MAX_NUMNODES 16
+
+#endif /* _ASM_MAX_NUMNODES_H */

include/asm-ppc64/page.h

@@ -207,13 +207,15 @@ static inline int get_order(unsigned long size)
 #ifdef CONFIG_DISCONTIGMEM
 #define page_to_pfn(page)	discontigmem_page_to_pfn(page)
 #define pfn_to_page(pfn)	discontigmem_pfn_to_page(pfn)
+#define pfn_valid(pfn)		discontigmem_pfn_valid(pfn)
 #else
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
+#define pfn_valid(pfn)		((pfn) < max_mapnr)
 #endif
+
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
-#define pfn_valid(pfn)		((pfn) < max_mapnr)
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \

include/asm-ppc64/pgtable.h

@@ -35,12 +35,7 @@
 #define PTRS_PER_PMD	(1 << PMD_INDEX_SIZE)
 #define PTRS_PER_PGD	(1 << PGD_INDEX_SIZE)
 
-#if 0
-/* DRENG / PPPBBB This is a compiler bug!!! */
-#define USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
-#else
-#define USER_PTRS_PER_PGD	(1024)
-#endif
+#define USER_PTRS_PER_PGD	(TASK_SIZE_USER64 / PGDIR_SIZE)
 #define FIRST_USER_PGD_NR	0
 
 #define EADDR_SIZE (PTE_INDEX_SIZE + PMD_INDEX_SIZE + \