Merge commit 'v2.6.31-rc6' into core/rcu

Merge reason: the branch was on pre-rc1 .30, update to latest.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

13 files changed, 40 insertions, 49 deletions

diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile
index 96041a8d39e..1ff0fd92475 100644
--- a/arch/sparc/boot/Makefile
+++ b/arch/sparc/boot/Makefile
@@ -15,7 +15,7 @@ quiet_cmd_elftoaout	= ELFTOAOUT $@
 
 ifeq ($(CONFIG_SPARC32),y)
 quiet_cmd_piggy		= PIGGY   $@
-      cmd_piggy		= $(obj)/piggyback_32 $@ $(obj)/System.map $(ROOT_IMG)
+      cmd_piggy		= $(obj)/piggyback_32 $@ System.map $(ROOT_IMG)
 quiet_cmd_btfix		= BTFIX   $@
       cmd_btfix		= $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
 quiet_cmd_sysmap        = SYSMAP  $(obj)/System.map
@@ -58,7 +58,7 @@ $(obj)/image: $(obj)/btfix.o FORCE
 $(obj)/zImage: $(obj)/image
 	$(call if_changed,strip)
 
-$(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE
+$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE
 	$(call if_changed,elftoaout)
 	$(call if_changed,piggy)
 
@@ -79,7 +79,7 @@ $(obj)/image: vmlinux FORCE
 	$(call if_changed,strip)
 	@echo '  kernel: $@ is ready'
 
-$(obj)/tftpboot.img: vmlinux $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE
+$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE
 	$(call if_changed,elftoaout)
 	$(call if_changed,piggy)
 	@echo '  kernel: $@ is ready'
diff --git a/arch/sparc/boot/piggyback_32.c b/arch/sparc/boot/piggyback_32.c
index c9f500c1a8b..e8dc9adfcd6 100644
--- a/arch/sparc/boot/piggyback_32.c
+++ b/arch/sparc/boot/piggyback_32.c
@@ -70,7 +70,7 @@ void die(char *str)
 int main(int argc,char **argv)
 {
 	static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 };
-	unsigned char buffer[1024], *q, *r;
+	char buffer[1024], *q, *r;
 	unsigned int i, j, k, start, end, offset;
 	FILE *map;
 	struct stat s;
@@ -84,7 +84,7 @@ int main(int argc,char **argv)
 	while (fgets (buffer, 1024, map)) {
 		if (!strcmp (buffer + 8, " T start\n") || !strcmp (buffer + 16, " T start\n"))
 			start = strtoul (buffer, NULL, 16);
-		else if (!strcmp (buffer + 8, " A end\n") || !strcmp (buffer + 16, " A end\n"))
+		else if (!strcmp (buffer + 8, " A _end\n") || !strcmp (buffer + 16, " A _end\n"))
 			end = strtoul (buffer, NULL, 16);
 	}
 	fclose (map);
diff --git a/arch/sparc/boot/piggyback_64.c b/arch/sparc/boot/piggyback_64.c
index de364bfed0b..c63fd1b6bdd 100644
--- a/arch/sparc/boot/piggyback_64.c
+++ b/arch/sparc/boot/piggyback_64.c
@@ -46,6 +46,7 @@ int main(int argc,char **argv)
 	struct stat s;
 	int image, tail;
 	
+	start = end = 0;
 	if (stat (argv[3], &s) < 0) die (argv[3]);
 	map = fopen (argv[2], "r");
 	if (!map) die(argv[2]);
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 681582d2696..ca2b34456c4 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -44,8 +44,8 @@ BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long)
 BTFIXUPDEF_CALL(void, free_pmd_fast, pmd_t *)
 #define free_pmd_fast(pmd)	BTFIXUP_CALL(free_pmd_fast)(pmd)
 
-#define pmd_free(mm, pmd)	free_pmd_fast(pmd)
-#define __pmd_free_tlb(tlb, pmd) pmd_free((tlb)->mm, pmd)
+#define pmd_free(mm, pmd)		free_pmd_fast(pmd)
+#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
 
 BTFIXUPDEF_CALL(void, pmd_populate, pmd_t *, struct page *)
 #define pmd_populate(MM, PMD, PTE)        BTFIXUP_CALL(pmd_populate)(PMD, PTE)
@@ -62,7 +62,7 @@ BTFIXUPDEF_CALL(void, free_pte_fast, pte_t *)
 #define pte_free_kernel(mm, pte)	BTFIXUP_CALL(free_pte_fast)(pte)
 
 BTFIXUPDEF_CALL(void, pte_free, pgtable_t )
-#define pte_free(mm, pte)	BTFIXUP_CALL(pte_free)(pte)
-#define __pte_free_tlb(tlb, pte)	pte_free((tlb)->mm, pte)
+#define pte_free(mm, pte)		BTFIXUP_CALL(pte_free)(pte)
+#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, pte)
 
 #endif /* _SPARC_PGALLOC_H */
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index 0f7b0e5fb1c..844d73a0340 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -54,8 +54,6 @@ struct thread_info {
 
 /*
  * macros/functions for gaining access to the thread information structure
- *
- * preempt_count needs to be 1 initially, until the scheduler is functional.
  */
 #define INIT_THREAD_INFO(tsk)				\
 {							\
@@ -64,7 +62,7 @@ struct thread_info {
 	.exec_domain	=	&default_exec_domain,	\
 	.flags		=	0,			\
 	.cpu		=	0,			\
-	.preempt_count	=	1,			\
+	.preempt_count	=	INIT_PREEMPT_COUNT,	\
 	.restart_block	= {				\
 		.fn	=	do_no_restart_syscall,	\
 	},						\
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 65865726b28..1b45a7bbe40 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -125,8 +125,6 @@ struct thread_info {
 
 /*
  * macros/functions for gaining access to the thread information structure
- *
- * preempt_count needs to be 1 initially, until the scheduler is functional.
  */
 #ifndef __ASSEMBLY__
 
@@ -135,7 +133,7 @@ struct thread_info {
 	.task		=	&tsk,			\
 	.flags		= ((unsigned long)ASI_P) << TI_FLAG_CURRENT_DS_SHIFT,	\
 	.exec_domain	=	&default_exec_domain,	\
-	.preempt_count	=	1,			\
+	.preempt_count	=	INIT_PREEMPT_COUNT,	\
 	.restart_block	= {				\
 		.fn	=	do_no_restart_syscall,	\
 	},						\
diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index ee38e731bfa..dca406b9b6f 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -100,9 +100,9 @@ static inline void tlb_remove_page(struct mmu_gather *mp, struct page *page)
 }
 
 #define tlb_remove_tlb_entry(mp,ptep,addr) do { } while (0)
-#define pte_free_tlb(mp, ptepage) pte_free((mp)->mm, ptepage)
-#define pmd_free_tlb(mp, pmdp) pmd_free((mp)->mm, pmdp)
-#define pud_free_tlb(tlb,pudp) __pud_free_tlb(tlb,pudp)
+#define pte_free_tlb(mp, ptepage, addr) pte_free((mp)->mm, ptepage)
+#define pmd_free_tlb(mp, pmdp, addr) pmd_free((mp)->mm, pmdp)
+#define pud_free_tlb(tlb,pudp, addr) __pud_free_tlb(tlb,pudp,addr)
 
 #define tlb_migrate_finish(mm)	do { } while (0)
 #define tlb_start_vma(tlb, vma) do { } while (0)
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index bd075054942..f0ee7905540 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -20,7 +20,6 @@
 #include <linux/delay.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
 #include <linux/irq.h>
 
 #include <asm/ptrace.h>
@@ -914,25 +913,19 @@ void __cpuinit notrace sun4v_register_mondo_queues(int this_cpu)
 			   tb->nonresum_qmask);
 }
 
-static void __init alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask)
-{
-	unsigned long size = PAGE_ALIGN(qmask + 1);
-	void *p = __alloc_bootmem(size, size, 0);
-	if (!p) {
-		prom_printf("SUN4V: Error, cannot allocate mondo queue.\n");
-		prom_halt();
-	}
-
-	*pa_ptr = __pa(p);
-}
-
-static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask)
+/* Each queue region must be a power of 2 multiple of 64 bytes in
+ * size.  The base real address must be aligned to the size of the
+ * region.  Thus, an 8KB queue must be 8KB aligned, for example.
+ */
+static void __init alloc_one_queue(unsigned long *pa_ptr, unsigned long qmask)
 {
 	unsigned long size = PAGE_ALIGN(qmask + 1);
-	void *p = __alloc_bootmem(size, size, 0);
+	unsigned long order = get_order(size);
+	unsigned long p;
 
+	p = __get_free_pages(GFP_KERNEL, order);
 	if (!p) {
-		prom_printf("SUN4V: Error, cannot allocate kbuf page.\n");
+		prom_printf("SUN4V: Error, cannot allocate queue.\n");
 		prom_halt();
 	}
 
@@ -942,11 +935,11 @@ static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask)
 static void __init init_cpu_send_mondo_info(struct trap_per_cpu *tb)
 {
 #ifdef CONFIG_SMP
-	void *page;
+	unsigned long page;
 
 	BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64));
 
-	page = alloc_bootmem_pages(PAGE_SIZE);
+	page = get_zeroed_page(GFP_KERNEL);
 	if (!page) {
 		prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n");
 		prom_halt();
@@ -965,13 +958,13 @@ static void __init sun4v_init_mondo_queues(void)
 	for_each_possible_cpu(cpu) {
 		struct trap_per_cpu *tb = &trap_block[cpu];
 
-		alloc_one_mondo(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask);
-		alloc_one_mondo(&tb->dev_mondo_pa, tb->dev_mondo_qmask);
-		alloc_one_mondo(&tb->resum_mondo_pa, tb->resum_qmask);
-		alloc_one_kbuf(&tb->resum_kernel_buf_pa, tb->resum_qmask);
-		alloc_one_mondo(&tb->nonresum_mondo_pa, tb->nonresum_qmask);
-		alloc_one_kbuf(&tb->nonresum_kernel_buf_pa,
-			       tb->nonresum_qmask);
+		alloc_one_queue(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask);
+		alloc_one_queue(&tb->dev_mondo_pa, tb->dev_mondo_qmask);
+		alloc_one_queue(&tb->resum_mondo_pa, tb->resum_qmask);
+		alloc_one_queue(&tb->resum_kernel_buf_pa, tb->resum_qmask);
+		alloc_one_queue(&tb->nonresum_mondo_pa, tb->nonresum_qmask);
+		alloc_one_queue(&tb->nonresum_kernel_buf_pa,
+				tb->nonresum_qmask);
 	}
 }
 
@@ -999,7 +992,7 @@ void __init init_IRQ(void)
 	kill_prom_timer();
 
 	size = sizeof(struct ino_bucket) * NUM_IVECS;
-	ivector_table = alloc_bootmem(size);
+	ivector_table = kzalloc(size, GFP_KERNEL);
 	if (!ivector_table) {
 		prom_printf("Fatal error, cannot allocate ivector_table\n");
 		prom_halt();
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index 8ce6285a06d..7e3dfd9bb97 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -16,7 +16,6 @@
 #include <linux/ptrace.h>
 #include <linux/user.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/security.h>
 #include <linux/signal.h>
 #include <linux/regset.h>
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index a941c610e7c..4ae91dc2feb 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -17,7 +17,6 @@
 #include <linux/ptrace.h>
 #include <linux/user.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/security.h>
 #include <linux/seccomp.h>
 #include <linux/audit.h>
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 5c12e79b4bd..da1218e8ee8 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -11,7 +11,6 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
 #include <linux/string.h>
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 358283341b4..c0490c7bbde 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/kdebug.h>
 
 #include <asm/delay.h>
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index 753d128ed15..c28c71449a6 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -224,7 +224,12 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
 	if (!strcmp(type, "domain-services-port"))
 		bus_id_name = "ds";
 
-	if (strlen(bus_id_name) >= BUS_ID_SIZE - 4) {
+	/*
+	 * 20 char is the old driver-core name size limit, which is no more.
+	 * This check can probably be removed after review and possible
+	 * adaption of the vio users name length handling.
+	 */
+	if (strlen(bus_id_name) >= 20 - 4) {
 		printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n",
 		       bus_id_name);
 		return NULL;