Merge branch 'linus' into perfcounters/core-v2

Merge reason: we have gathered quite a few conflicts, need to merge upstream

Conflicts:
	arch/powerpc/kernel/Makefile
	arch/x86/ia32/ia32entry.S
	arch/x86/include/asm/hardirq.h
	arch/x86/include/asm/unistd_32.h
	arch/x86/include/asm/unistd_64.h
	arch/x86/kernel/cpu/common.c
	arch/x86/kernel/irq.c
	arch/x86/kernel/syscall_table_32.S
	arch/x86/mm/iomap_32.c
	include/linux/sched.h
	kernel/Makefile

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

18 files changed, 45 insertions, 84 deletions

diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c
index b820661678b0..a5182a207696 100644
--- a/arch/mips/kernel/cevt-bcm1480.c
+++ b/arch/mips/kernel/cevt-bcm1480.c
@@ -144,7 +144,6 @@ void __cpuinit sb1480_clockevent_init(void)
 
 	action->handler	= sibyte_counter_handler;
 	action->flags	= IRQF_DISABLED | IRQF_PERCPU;
-	action->mask	= cpumask_of_cpu(cpu);
 	action->name	= name;
 	action->dev_id	= cd;
 
diff --git a/arch/mips/kernel/cevt-sb1250.c b/arch/mips/kernel/cevt-sb1250.c
index a2eebaafda52..340f53e5c6b1 100644
--- a/arch/mips/kernel/cevt-sb1250.c
+++ b/arch/mips/kernel/cevt-sb1250.c
@@ -143,7 +143,6 @@ void __cpuinit sb1250_clockevent_init(void)
 
 	action->handler	= sibyte_counter_handler;
 	action->flags	= IRQF_DISABLED | IRQF_PERCPU;
-	action->mask	= cpumask_of_cpu(cpu);
 	action->name	= name;
 	action->dev_id	= cd;
 
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index a7162a4484cf..b13b8eb30596 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -149,6 +149,7 @@ void __init check_wait(void)
 	case CPU_R4650:
 	case CPU_R4700:
 	case CPU_R5000:
+	case CPU_R5500:
 	case CPU_NEVADA:
 	case CPU_4KC:
 	case CPU_4KEC:
@@ -182,13 +183,7 @@ void __init check_wait(void)
 	case CPU_TX49XX:
 		cpu_wait = r4k_wait_irqoff;
 		break;
-	case CPU_AU1000:
-	case CPU_AU1100:
-	case CPU_AU1500:
-	case CPU_AU1550:
-	case CPU_AU1200:
-	case CPU_AU1210:
-	case CPU_AU1250:
+	case CPU_ALCHEMY:
 		cpu_wait = au1k_wait;
 		break;
 	case CPU_20KC:
@@ -782,37 +777,30 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu)
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_AU1_REV1:
 	case PRID_IMP_AU1_REV2:
+		c->cputype = CPU_ALCHEMY;
 		switch ((c->processor_id >> 24) & 0xff) {
 		case 0:
-			c->cputype = CPU_AU1000;
 			__cpu_name[cpu] = "Au1000";
 			break;
 		case 1:
-			c->cputype = CPU_AU1500;
 			__cpu_name[cpu] = "Au1500";
 			break;
 		case 2:
-			c->cputype = CPU_AU1100;
 			__cpu_name[cpu] = "Au1100";
 			break;
 		case 3:
-			c->cputype = CPU_AU1550;
 			__cpu_name[cpu] = "Au1550";
 			break;
 		case 4:
-			c->cputype = CPU_AU1200;
 			__cpu_name[cpu] = "Au1200";
-			if ((c->processor_id & 0xff) == 2) {
-				c->cputype = CPU_AU1250;
+			if ((c->processor_id & 0xff) == 2)
 				__cpu_name[cpu] = "Au1250";
-			}
 			break;
 		case 5:
-			c->cputype = CPU_AU1210;
 			__cpu_name[cpu] = "Au1210";
 			break;
 		default:
-			panic("Unknown Au Core!");
+			__cpu_name[cpu] = "Au1xxx";
 			break;
 		}
 		break;
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index f4d187825f96..689719e34f08 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -98,7 +98,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
 static struct irqaction irq0  = {
 	.handler = timer_interrupt,
 	.flags = IRQF_DISABLED | IRQF_NOBALANCING,
-	.mask = CPU_MASK_NONE,
 	.name = "timer"
 };
 
@@ -121,7 +120,6 @@ void __init setup_pit_timer(void)
 	cd->min_delta_ns = clockevent_delta2ns(0xF, cd);
 	clockevents_register_device(cd);
 
-	irq0.mask = cpumask_of_cpu(cpu);
 	setup_irq(0, &irq0);
 }
 
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index 413bd1d37f54..01c0885a8061 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -306,7 +306,6 @@ static void init_8259A(int auto_eoi)
  */
 static struct irqaction irq2 = {
 	.handler = no_action,
-	.mask = CPU_MASK_NONE,
 	.name = "cascade",
 };
 
diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index 963c16d266ab..6a8cd28133d5 100644
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -140,14 +140,16 @@ void __init init_msc_irqs(unsigned long icubase, unsigned int irqbase, msc_irqma
 
 		switch (imp->im_type) {
 		case MSC01_IRQ_EDGE:
-			set_irq_chip(irqbase+n, &msc_edgeirq_type);
+			set_irq_chip_and_handler_name(irqbase + n,
+				&msc_edgeirq_type, handle_edge_irq, "edge");
 			if (cpu_has_veic)
 				MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT);
 			else
 				MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT | imp->im_lvl);
 			break;
 		case MSC01_IRQ_LEVEL:
-			set_irq_chip(irqbase+n, &msc_levelirq_type);
+			set_irq_chip_and_handler_name(irqbase+n,
+				&msc_levelirq_type, handle_level_irq, "level");
 			if (cpu_has_veic)
 				MSCIC_WRITE(MSC01_IC_SUP+n*8, 0);
 			else
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 4b4007b3083a..7b845ba9dff4 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -108,7 +108,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #else
 		for_each_online_cpu(j)
-			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
 #endif
 		seq_printf(p, " %14s", irq_desc[i].chip->name);
 		seq_printf(p, "  %s", action->name);
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 0ee2567b780d..55c8a3ca507b 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -112,7 +112,8 @@ void __init mips_cpu_irq_init(void)
 	 */
 	if (cpu_has_mipsmt)
 		for (i = irq_base; i < irq_base + 2; i++)
-			set_irq_chip(i, &mips_mt_cpu_irq_controller);
+			set_irq_chip_and_handler(i, &mips_mt_cpu_irq_controller,
+						 handle_percpu_irq);
 
 	for (i = irq_base + 2; i < irq_base + 8; i++)
 		set_irq_chip_and_handler(i, &mips_cpu_irq_controller,
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 2f8452b404c7..6242bc68add7 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -32,7 +32,6 @@
 #include <linux/module.h>
 #include <linux/binfmts.h>
 #include <linux/security.h>
-#include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/ipc.h>
@@ -134,9 +133,9 @@ SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy,
 	return sys_ftruncate(fd, merge_64(a2, a3));
 }
 
-SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,
-	unsigned long, offset_low, loff_t __user *, result,
-	unsigned long, origin)
+SYSCALL_DEFINE5(32_llseek, unsigned int, fd, unsigned int, offset_high,
+		unsigned int, offset_low, loff_t __user *, result,
+		unsigned int, origin)
 {
 	return sys_llseek(fd, offset_high, offset_low, result, origin);
 }
@@ -235,7 +234,7 @@ SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
 #else
 
 SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
-	u32, ptr, u32 fifth)
+	u32, ptr, u32, fifth)
 {
 	return -ENOSYS;
 }
@@ -356,40 +355,6 @@ SYSCALL_DEFINE1(32_personality, unsigned long, personality)
 	return ret;
 }
 
-/* ustat compatibility */
-struct ustat32 {
-	compat_daddr_t	f_tfree;
-	compat_ino_t	f_tinode;
-	char		f_fname[6];
-	char		f_fpack[6];
-};
-
-extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
-
-SYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32)
-{
-	int err;
-	struct ustat tmp;
-	struct ustat32 tmp32;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	err = sys_ustat(dev, (struct ustat __user *)&tmp);
-	set_fs(old_fs);
-
-	if (err)
-		goto out;
-
-	memset(&tmp32, 0, sizeof(struct ustat32));
-	tmp32.f_tfree = tmp.f_tfree;
-	tmp32.f_tinode = tmp.f_tinode;
-
-	err = copy_to_user(ubuf32, &tmp32, sizeof(struct ustat32)) ? -EFAULT : 0;
-
-out:
-	return err;
-}
-
 SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
 	compat_off_t __user *, offset, s32, count)
 {
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index ca2e4026ad20..1eaaa450e20c 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -99,7 +99,7 @@ void flush_thread(void)
 {
 }
 
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+int copy_thread(unsigned long clone_flags, unsigned long usp,
 	unsigned long unused, struct task_struct *p, struct pt_regs *regs)
 {
 	struct thread_info *ti = task_thread_info(p);
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 9ab70c3b5be6..0b31b9bda048 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -650,6 +650,8 @@ einval:	li	v0, -ENOSYS
 	sys	sys_dup3		3
 	sys	sys_pipe2		2
 	sys	sys_inotify_init1	1
+	sys	sys_preadv		6	/* 4330 */
+	sys	sys_pwritev		6
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 9b4698667154..c647fd6e722f 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -487,4 +487,6 @@ sys_call_table:
 	PTR	sys_dup3
 	PTR	sys_pipe2
 	PTR	sys_inotify_init1
+	PTR	sys_preadv
+	PTR	sys_pwritev			/* 5390 */
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 7438e92f8a01..c2c16ef9218f 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -253,7 +253,7 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_utime		/* 6130 */
 	PTR	sys_mknod
 	PTR	sys_32_personality
-	PTR	sys_32_ustat
+	PTR	compat_sys_ustat
 	PTR	compat_sys_statfs
 	PTR	compat_sys_fstatfs		/* 6135 */
 	PTR	sys_sysfs
@@ -413,4 +413,6 @@ EXPORT(sysn32_call_table)
 	PTR	sys_dup3			/* 5290 */
 	PTR	sys_pipe2
 	PTR	sys_inotify_init1
+	PTR	sys_preadv
+	PTR	sys_pwritev
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index b0fef4ff9827..002fac27021e 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -265,7 +265,7 @@ sys_call_table:
 	PTR	sys_olduname
 	PTR	sys_umask			/* 4060 */
 	PTR	sys_chroot
-	PTR	sys_32_ustat
+	PTR	compat_sys_ustat
 	PTR	sys_dup2
 	PTR	sys_getppid
 	PTR	sys_getpgrp			/* 4065 */
@@ -533,4 +533,6 @@ sys_call_table:
 	PTR	sys_dup3
 	PTR	sys_pipe2
 	PTR	sys_inotify_init1
+	PTR	compat_sys_preadv		/* 4330 */
+	PTR	compat_sys_pwritev
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 4430a1f8fdf1..2950b97253b7 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -277,7 +277,8 @@ static void __init bootmem_init(void)
 	 * not selected. Once that done we can determine the low bound
 	 * of usable memory.
 	 */
-	reserved_end = max(init_initrd(), PFN_UP(__pa_symbol(&_end)));
+	reserved_end = max(init_initrd(),
+			   (unsigned long) PFN_UP(__pa_symbol(&_end)));
 
 	/*
 	 * max_low_pfn is not a number of pages. The number of pages
diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c
index ead6c30eeb14..878e3733bbb2 100644
--- a/arch/mips/kernel/smp-up.c
+++ b/arch/mips/kernel/smp-up.c
@@ -13,7 +13,7 @@
 /*
  * Send inter-processor interrupt
  */
-void up_send_ipi_single(int cpu, unsigned int action)
+static void up_send_ipi_single(int cpu, unsigned int action)
 {
 	panic(KERN_ERR "%s called", __func__);
 }
@@ -27,31 +27,31 @@ static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action)
  *  After we've done initial boot, this function is called to allow the
  *  board code to clean up state, if needed
  */
-void __cpuinit up_init_secondary(void)
+static void __cpuinit up_init_secondary(void)
 {
 }
 
-void __cpuinit up_smp_finish(void)
+static void __cpuinit up_smp_finish(void)
 {
 }
 
 /* Hook for after all CPUs are online */
-void up_cpus_done(void)
+static void up_cpus_done(void)
 {
 }
 
 /*
  * Firmware CPU startup hook
  */
-void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
+static void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
 {
 }
 
-void __init up_smp_setup(void)
+static void __init up_smp_setup(void)
 {
 }
 
-void __init up_prepare_cpus(unsigned int max_cpus)
+static void __init up_prepare_cpus(unsigned int max_cpus)
 {
 }
 
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 3da94704f816..c937506a03aa 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -44,7 +44,7 @@
 #include <asm/mipsmtregs.h>
 #endif /* CONFIG_MIPS_MT_SMTC */
 
-volatile cpumask_t cpu_callin_map;	/* Bitmask of started secondaries */
+static volatile cpumask_t cpu_callin_map;	/* Bitmask of started secondaries */
 int __cpu_number_map[NR_CPUS];		/* Map physical to logical */
 int __cpu_logical_map[NR_CPUS];		/* Map logical to physical */
 
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index b2d7041341b8..e83da174b533 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1277,8 +1277,7 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
 	u32 *w;
 	unsigned char *b;
 
-	if (!cpu_has_veic && !cpu_has_vint)
-		BUG();
+	BUG_ON(!cpu_has_veic && !cpu_has_vint);
 
 	if (addr == NULL) {
 		handler = (unsigned long) do_default_vi;
@@ -1520,7 +1519,9 @@ void __cpuinit per_cpu_trap_init(void)
 #endif /* CONFIG_MIPS_MT_SMTC */
 
 	if (cpu_has_veic || cpu_has_vint) {
+		unsigned long sr = set_c0_status(ST0_BEV);
 		write_c0_ebase(ebase);
+		write_c0_status(sr);
 		/* Setting vector spacing enables EI/VI mode  */
 		change_c0_intctl(0x3e0, VECTORSPACING);
 	}
@@ -1602,8 +1603,6 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
 #ifdef CONFIG_64BIT
 	unsigned long uncached_ebase = TO_UNCAC(ebase);
 #endif
-	if (cpu_has_mips_r2)
-		uncached_ebase += (read_c0_ebase() & 0x3ffff000);
 
 	if (!addr)
 		panic(panic_null_cerr);
@@ -1635,9 +1634,11 @@ void __init trap_init(void)
 		return;	/* Already done */
 #endif
 
-	if (cpu_has_veic || cpu_has_vint)
-		ebase = (unsigned long) alloc_bootmem_low_pages(0x200 + VECTORSPACING*64);
-	else {
+	if (cpu_has_veic || cpu_has_vint) {
+		unsigned long size = 0x200 + VECTORSPACING*64;
+		ebase = (unsigned long)
+			__alloc_bootmem(size, 1 << fls(size), 0);
+	} else {
 		ebase = CAC_BASE;
 		if (cpu_has_mips_r2)
 			ebase += (read_c0_ebase() & 0x3ffff000);