25 files changed, 101 insertions, 160 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 4f98516b9f94..91cff8dc9e1a 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -34,6 +34,7 @@ obj-y				+= sysenter.o vsyscall.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat.o
 obj-$(CONFIG_EFI) 		+= efi.o efi_stub.o
 obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault.o
+obj-$(CONFIG_SERIAL_8250)	+= legacy_serial.o
 obj-$(CONFIG_VM86)		+= vm86.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_HPET_TIMER) 	+= hpet.o
diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c
index e5cec6685cc5..d8cda14fff8b 100644
--- a/arch/i386/kernel/alternative.c
+++ b/arch/i386/kernel/alternative.c
@@ -390,8 +390,8 @@ void __init alternative_instructions(void)
 						_text, _etext);
 		}
 		free_init_pages("SMP alternatives",
-				__pa_symbol(&__smp_locks),
-				__pa_symbol(&__smp_locks_end));
+				(unsigned long)__smp_locks,
+				(unsigned long)__smp_locks_end);
 	} else {
 		alternatives_smp_module_add(NULL, "core kernel",
 					    __smp_locks, __smp_locks_end,
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index aca054cc0552..67824f3bb974 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -19,7 +19,6 @@
 #include <linux/mm.h>
 #include <linux/delay.h>
 #include <linux/bootmem.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/mc146818rtc.h>
 #include <linux/kernel_stat.h>
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index 367ff1d930cb..4112afe712b9 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -223,7 +223,6 @@
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/dmi.h>
 #include <linux/suspend.h>
 #include <linux/kthread.h>
@@ -1173,7 +1172,7 @@ static void reinit_timer(void)
 	unsigned long flags;
 
 	spin_lock_irqsave(&i8253_lock, flags);
-	/* set the clock to 100 Hz */
+	/* set the clock to HZ */
 	outb_p(0x34, PIT_MODE);		/* binary, mode 2, LSB/MSB, ch 0 */
 	udelay(10);
 	outb_p(LATCH & 0xff, PIT_CH0);	/* LSB */
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index a5e0e990ea95..53589d1b1a05 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -22,7 +22,7 @@
 #include <asm/nmi.h>
 #include <asm/hw_irq.h>
 #include <asm/apic.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
 #include <asm/smp.h>
 
 #include <mach_ipi.h>
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index dd9e7faafa7c..a1808022ea19 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -347,14 +347,12 @@ void __init efi_init(void)
 		printk(KERN_ERR PFX "Woah! Couldn't map the EFI system table.\n");
 	if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
 		printk(KERN_ERR PFX "Woah! EFI system table signature incorrect\n");
-	if ((efi.systab->hdr.revision ^ EFI_SYSTEM_TABLE_REVISION) >> 16 != 0)
-		printk(KERN_ERR PFX
-		       "Warning: EFI system table major version mismatch: "
-		       "got %d.%02d, expected %d.%02d\n",
+	if ((efi.systab->hdr.revision >> 16) == 0)
+		printk(KERN_ERR PFX "Warning: EFI system table version "
+		       "%d.%02d, expected 1.00 or greater\n",
 		       efi.systab->hdr.revision >> 16,
-		       efi.systab->hdr.revision & 0xffff,
-		       EFI_SYSTEM_TABLE_REVISION >> 16,
-		       EFI_SYSTEM_TABLE_REVISION & 0xffff);
+		       efi.systab->hdr.revision & 0xffff);
+
 	/*
 	 * Grab some details from the system table
 	 */
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c
index 03abfdb1a6e4..0499cbe9871a 100644
--- a/arch/i386/kernel/i8259.c
+++ b/arch/i386/kernel/i8259.c
@@ -5,7 +5,6 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/random.h>
-#include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/kernel_stat.h>
 #include <linux/sysdev.h>
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 1b623cda3a64..7f8b7af2b95f 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -25,7 +25,6 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/mc146818rtc.h>
 #include <linux/compiler.h>
 #include <linux/acpi.h>
diff --git a/arch/i386/kernel/ioport.c b/arch/i386/kernel/ioport.c
index d1e42e0dbe67..3d310a946d76 100644
--- a/arch/i386/kernel/ioport.c
+++ b/arch/i386/kernel/ioport.c
@@ -12,7 +12,6 @@
 #include <linux/types.h>
 #include <linux/ioport.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/stddef.h>
 #include <linux/slab.h>
 #include <linux/thread_info.h>
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index b545bc746fce..dde828a333c3 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -31,8 +31,8 @@
 #include <linux/kprobes.h>
 #include <linux/ptrace.h>
 #include <linux/preempt.h>
+#include <linux/kdebug.h>
 #include <asm/cacheflush.h>
-#include <asm/kdebug.h>
 #include <asm/desc.h>
 #include <asm/uaccess.h>
 
@@ -226,24 +226,15 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 }
 
 /* Called with kretprobe_lock held */
-void __kprobes arch_prepare_kretprobe(struct kretprobe *rp,
+void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
 	unsigned long *sara = (unsigned long *)&regs->esp;
 
-	struct kretprobe_instance *ri;
+	ri->ret_addr = (kprobe_opcode_t *) *sara;
 
-	if ((ri = get_free_rp_inst(rp)) != NULL) {
-		ri->rp = rp;
-		ri->task = current;
-		ri->ret_addr = (kprobe_opcode_t *) *sara;
-
-		/* Replace the return addr with trampoline addr */
-		*sara = (unsigned long) &kretprobe_trampoline;
-		add_rp_inst(ri);
-	} else {
-		rp->nmissed++;
-	}
+	/* Replace the return addr with trampoline addr */
+	*sara = (unsigned long) &kretprobe_trampoline;
 }
 
 /*
@@ -449,8 +440,7 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
 			break;
 	}
 
-	BUG_ON(!orig_ret_address || (orig_ret_address == trampoline_address));
-
+	kretprobe_assert(ri, orig_ret_address, trampoline_address);
 	spin_unlock_irqrestore(&kretprobe_lock, flags);
 
 	hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
@@ -753,6 +743,11 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 	return 0;
 }
 
+int __kprobes arch_trampoline_kprobe(struct kprobe *p)
+{
+	return 0;
+}
+
 int __init arch_init_kprobes(void)
 {
 	return 0;
diff --git a/arch/i386/kernel/ldt.c b/arch/i386/kernel/ldt.c
index b410e5fb034f..e0b2d17f4f10 100644
--- a/arch/i386/kernel/ldt.c
+++ b/arch/i386/kernel/ldt.c
@@ -10,7 +10,6 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 
diff --git a/arch/i386/kernel/legacy_serial.c b/arch/i386/kernel/legacy_serial.c
new file mode 100644
index 000000000000..21510118544e
--- /dev/null
+++ b/arch/i386/kernel/legacy_serial.c
@@ -0,0 +1,67 @@
+/*
+ * Legacy COM port devices for x86 platforms without PNPBIOS or ACPI.
+ * Data taken from include/asm-i386/serial.h.
+ *
+ * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pnp.h>
+#include <linux/serial_8250.h>
+
+/* Standard COM flags (except for COM4, because of the 8514 problem) */
+#ifdef CONFIG_SERIAL_DETECT_IRQ
+#define COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
+#define COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
+#else
+#define COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
+#define COM4_FLAGS UPF_BOOT_AUTOCONF
+#endif
+
+#define PORT(_base,_irq,_flags)				\
+	{						\
+		.iobase		= _base,		\
+		.irq		= _irq,			\
+		.uartclk	= 1843200,		\
+		.iotype		= UPIO_PORT,		\
+		.flags		= _flags,		\
+	}
+
+static struct plat_serial8250_port x86_com_data[] = {
+	PORT(0x3F8, 4, COM_FLAGS),
+	PORT(0x2F8, 3, COM_FLAGS),
+	PORT(0x3E8, 4, COM_FLAGS),
+	PORT(0x2E8, 3, COM4_FLAGS),
+	{ },
+};
+
+static struct platform_device x86_com_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_PLATFORM,
+	.dev			= {
+		.platform_data	= x86_com_data,
+	},
+};
+
+static int force_legacy_probe;
+module_param_named(force, force_legacy_probe, bool, 0);
+MODULE_PARM_DESC(force, "Force legacy serial port probe");
+
+static int __init serial8250_x86_com_init(void)
+{
+	if (pnp_platform_devices && !force_legacy_probe)
+		return -ENODEV;
+
+	return platform_device_register(&x86_com_device);
+}
+
+module_init(serial8250_x86_com_init);
+
+MODULE_AUTHOR("Bjorn Helgaas");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic 8250/16x50 legacy probe module");
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 0952eccd8f28..13abb4ebfb79 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -18,7 +18,6 @@
 #include <linux/acpi.h>
 #include <linux/delay.h>
 #include <linux/bootmem.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel_stat.h>
 #include <linux/mc146818rtc.h>
 #include <linux/bitops.h>
diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c
index bcaa6e9b6197..8cd0a91ce107 100644
--- a/arch/i386/kernel/msr.c
+++ b/arch/i386/kernel/msr.c
@@ -45,104 +45,6 @@
 
 static struct class *msr_class;
 
-static inline int wrmsr_eio(u32 reg, u32 eax, u32 edx)
-{
-	int err;
-
-	err = wrmsr_safe(reg, eax, edx);
-	if (err)
-		err = -EIO;
-	return err;
-}
-
-static inline int rdmsr_eio(u32 reg, u32 *eax, u32 *edx)
-{
-	int err;
-
-	err = rdmsr_safe(reg, eax, edx);
-	if (err)
-		err = -EIO;
-	return err;
-}
-
-#ifdef CONFIG_SMP
-
-struct msr_command {
-	int err;
-	u32 reg;
-	u32 data[2];
-};
-
-static void msr_smp_wrmsr(void *cmd_block)
-{
-	struct msr_command *cmd = (struct msr_command *)cmd_block;
-
-	cmd->err = wrmsr_eio(cmd->reg, cmd->data[0], cmd->data[1]);
-}
-
-static void msr_smp_rdmsr(void *cmd_block)
-{
-	struct msr_command *cmd = (struct msr_command *)cmd_block;
-
-	cmd->err = rdmsr_eio(cmd->reg, &cmd->data[0], &cmd->data[1]);
-}
-
-static inline int do_wrmsr(int cpu, u32 reg, u32 eax, u32 edx)
-{
-	struct msr_command cmd;
-	int ret;
-
-	preempt_disable();
-	if (cpu == smp_processor_id()) {
-		ret = wrmsr_eio(reg, eax, edx);
-	} else {
-		cmd.reg = reg;
-		cmd.data[0] = eax;
-		cmd.data[1] = edx;
-
-		smp_call_function_single(cpu, msr_smp_wrmsr, &cmd, 1, 1);
-		ret = cmd.err;
-	}
-	preempt_enable();
-	return ret;
-}
-
-static inline int do_rdmsr(int cpu, u32 reg, u32 * eax, u32 * edx)
-{
-	struct msr_command cmd;
-	int ret;
-
-	preempt_disable();
-	if (cpu == smp_processor_id()) {
-		ret = rdmsr_eio(reg, eax, edx);
-	} else {
-		cmd.reg = reg;
-
-		smp_call_function_single(cpu, msr_smp_rdmsr, &cmd, 1, 1);
-
-		*eax = cmd.data[0];
-		*edx = cmd.data[1];
-
-		ret = cmd.err;
-	}
-	preempt_enable();
-	return ret;
-}
-
-#else				/* ! CONFIG_SMP */
-
-static inline int do_wrmsr(int cpu, u32 reg, u32 eax, u32 edx)
-{
-	return wrmsr_eio(reg, eax, edx);
-}
-
-static inline int do_rdmsr(int cpu, u32 reg, u32 *eax, u32 *edx)
-{
-	return rdmsr_eio(reg, eax, edx);
-}
-
-#endif				/* ! CONFIG_SMP */
-
 static loff_t msr_seek(struct file *file, loff_t offset, int orig)
 {
 	loff_t ret = -EINVAL;
@@ -174,9 +76,9 @@ static ssize_t msr_read(struct file *file, char __user * buf,
 		return -EINVAL;	/* Invalid chunk size */
 
 	for (; count; count -= 8) {
-		err = do_rdmsr(cpu, reg, &data[0], &data[1]);
+		err = rdmsr_safe_on_cpu(cpu, reg, &data[0], &data[1]);
 		if (err)
-			return err;
+			return -EIO;
 		if (copy_to_user(tmp, &data, 8))
 			return -EFAULT;
 		tmp += 2;
@@ -200,9 +102,9 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
 	for (; count; count -= 8) {
 		if (copy_from_user(&data, tmp, 8))
 			return -EFAULT;
-		err = do_wrmsr(cpu, reg, data[0], data[1]);
+		err = wrmsr_safe_on_cpu(cpu, reg, data[0], data[1]);
 		if (err)
-			return err;
+			return -EIO;
 		tmp += 2;
 	}
 
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 33cf2f3c444f..fba121f7973f 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -23,10 +23,10 @@
 #include <linux/kprobes.h>
 #include <linux/cpumask.h>
 #include <linux/kernel_stat.h>
+#include <linux/kdebug.h>
 
 #include <asm/smp.h>
 #include <asm/nmi.h>
-#include <asm/kdebug.h>
 
 #include "mach_traps.h"
 
diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c
index 3ebcea033623..30b754f7cbec 100644
--- a/arch/i386/kernel/pci-dma.c
+++ b/arch/i386/kernel/pci-dma.c
@@ -77,7 +77,7 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
 {
 	void __iomem *mem_base = NULL;
 	int pages = size >> PAGE_SHIFT;
-	int bitmap_size = (pages + 31)/32;
+	int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long);
 
 	if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0)
 		goto out;
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 61999479b7a4..d76d9bc33b30 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -21,7 +21,6 @@
 #include <linux/mm.h>
 #include <linux/elfcore.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/stddef.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 4a8f8a259723..0c0ceec5de00 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -9,7 +9,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/user.h>
diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index 4f99e870c986..d574e38f0f77 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -10,7 +10,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/errno.h>
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index 89a45a9ddcd4..93f202a855fa 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -13,7 +13,6 @@
 #include <linux/mm.h>
 #include <linux/delay.h>
 #include <linux/spinlock.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel_stat.h>
 #include <linux/mc146818rtc.h>
 #include <linux/cache.h>
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index a4b7ad283f49..b92cc4e8b3bb 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -40,7 +40,6 @@
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/kernel_stat.h>
-#include <linux/smp_lock.h>
 #include <linux/bootmem.h>
 #include <linux/notifier.h>
 #include <linux/cpu.h>
diff --git a/arch/i386/kernel/sys_i386.c b/arch/i386/kernel/sys_i386.c
index 4048397f1740..e5dcb9379018 100644
--- a/arch/i386/kernel/sys_i386.c
+++ b/arch/i386/kernel/sys_i386.c
@@ -10,7 +10,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/sem.h>
 #include <linux/msg.h>
 #include <linux/shm.h>
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S
index 2697e9210e92..0772678ceecf 100644
--- a/arch/i386/kernel/syscall_table.S
+++ b/arch/i386/kernel/syscall_table.S
@@ -319,3 +319,4 @@ ENTRY(sys_call_table)
 	.long sys_move_pages
 	.long sys_getcpu
 	.long sys_epoll_pwait
+	.long sys_utimensat		/* 320 */
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index f21b41e7770c..4bec0cbf407a 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -52,7 +52,7 @@
 #include <asm/unwind.h>
 #include <asm/smp.h>
 #include <asm/arch_hooks.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
 #include <asm/stacktrace.h>
 
 #include <linux/module.h>
@@ -95,20 +95,6 @@ asmlinkage void machine_check(void);
 
 int kstack_depth_to_print = 24;
 static unsigned int code_bytes = 64;
-ATOMIC_NOTIFIER_HEAD(i386die_chain);
-
-int register_die_notifier(struct notifier_block *nb)
-{
-	vmalloc_sync_all();
-	return atomic_notifier_chain_register(&i386die_chain, nb);
-}
-EXPORT_SYMBOL(register_die_notifier); /* used modular by kdb */
-
-int unregister_die_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_unregister(&i386die_chain, nb);
-}
-EXPORT_SYMBOL(unregister_die_notifier); /* used modular by kdb */
 
 static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
 {
@@ -747,6 +733,11 @@ static __kprobes void default_do_nmi(struct pt_regs * regs)
 		 */
 		if (nmi_watchdog_tick(regs, reason))
 			return;
+#endif
+		if (notify_die(DIE_NMI_POST, "nmi_post", regs, reason, 2, 0)
+							== NOTIFY_STOP)
+			return;
+#ifdef CONFIG_X86_LOCAL_APIC
 		if (!do_nmi_callback(regs, smp_processor_id()))
 #endif
 			unknown_nmi_error(reason, regs);
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index d1b8f2b7aea6..f2dcd1d27c0a 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -39,7 +39,6 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/highmem.h>
 #include <linux/ptrace.h>
 #include <linux/audit.h>