Merge Linus' tree.

123 files changed, 862 insertions, 987 deletions

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 153337ff1d7..eedf41bf705 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -18,9 +18,6 @@ config MMU
 	bool
 	default y
 
-config UID16
-	bool
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index a8682612abc..abb739b88ed 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -43,6 +43,11 @@
 #include "proto.h"
 #include "pci_impl.h"
 
+/*
+ * Power off function, if any
+ */
+void (*pm_power_off)(void) = machine_power_off;
+
 void
 cpu_idle(void)
 {
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index bbd37536d14..9969d212e94 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -265,30 +265,16 @@ do_sys_ptrace(long request, long pid, long addr, long data,
 	lock_kernel();
 	DBG(DBG_MEM, ("request=%ld pid=%ld addr=0x%lx data=0x%lx\n",
 		      request, pid, addr, data));
-	ret = -EPERM;
 	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED)
-			goto out_notsk;
-		ret = security_ptrace(current->parent, current);
-		if (ret)
-			goto out_notsk;
-		/* set the ptrace bit in the process ptrace flags. */
-		current->ptrace |= PT_PTRACED;
-		ret = 0;
+		ret = ptrace_traceme();
 		goto out_notsk;
 	}
-	if (pid == 1)		/* you may not mess with init */
-		goto out_notsk;
 
-	ret = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
 		goto out_notsk;
+	}
 
 	if (request == PTRACE_ATTACH) {
 		ret = ptrace_attach(child);
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e149f152e70..50b9afa8ae6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -46,10 +46,6 @@ config MCA
 	  <file:Documentation/mca.txt> (and especially the web page given
 	  there) before attempting to build an MCA bus kernel.
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index b6de43e7369..a2dfe0b0f1e 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -13,6 +13,7 @@
 
 #include <linux/device.h>
 #include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <asm/io.h>
 #include <asm/hardware/scoop.h>
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index 04d3082a7b9..0abbce8c70b 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -23,20 +23,15 @@
 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
 #endif
 /*
- * GCC 2.95.1, 2.95.2: ignores register clobber list in asm().
  * GCC 3.0, 3.1: general bad code generation.
  * GCC 3.2.0: incorrect function argument offset calculation.
  * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
  *            (http://gcc.gnu.org/PR8896) and incorrect structure
  *	      initialisation in fs/jffs2/erase.c
  */
-#if __GNUC__ < 2 || \
-   (__GNUC__ == 2 && __GNUC_MINOR__ < 95) || \
-   (__GNUC__ == 2 && __GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ != 0 && \
-					     __GNUC_PATCHLEVEL__ < 3) || \
-   (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
+#if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
 #error Your compiler is too buggy; it is known to miscompile kernels.
-#error    Known good compilers: 2.95.3, 2.95.4, 2.96, 3.3
+#error    Known good compilers: 3.3
 #endif
 
 /* Use marker if you need to separate the values later */
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 869c466e625..b5645c4462c 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -684,8 +684,12 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 	spin_lock_irqsave(&irq_controller_lock, flags);
 	p = &desc->action;
 	if ((old = *p) != NULL) {
-		/* Can't share interrupts unless both agree to */
-		if (!(old->flags & new->flags & SA_SHIRQ)) {
+		/*
+		 * Can't share interrupts unless both agree to and are
+		 * the same type.
+		 */
+		if (!(old->flags & new->flags & SA_SHIRQ) ||
+		    (~old->flags & new->flags) & SA_TRIGGER_MASK) {
 			spin_unlock_irqrestore(&irq_controller_lock, flags);
 			return -EBUSY;
 		}
@@ -705,6 +709,12 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 		desc->running = 0;
 		desc->pending = 0;
 		desc->disable_depth = 1;
+
+		if (new->flags & SA_TRIGGER_MASK) {
+			unsigned int type = new->flags & SA_TRIGGER_MASK;
+			desc->chip->set_type(irq, type);
+		}
+
 		if (!desc->noautoenable) {
 			desc->disable_depth = 0;
 			desc->chip->unmask(irq);
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 775f85fc851..9e563de465b 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -601,6 +601,7 @@ EXPORT_SYMBOL(gpio_lock);
 EXPORT_SYMBOL(gpio_modify_op);
 EXPORT_SYMBOL(gpio_modify_io);
 EXPORT_SYMBOL(cpld_modify);
+EXPORT_SYMBOL(gpio_read);
 
 /*
  * Initialise any other hardware after we've got the PCI bus
diff --git a/arch/arm/mach-integrator/time.c b/arch/arm/mach-integrator/time.c
index 9f46aaef896..3c22c16b38b 100644
--- a/arch/arm/mach-integrator/time.c
+++ b/arch/arm/mach-integrator/time.c
@@ -96,7 +96,8 @@ static struct rtc_ops rtc_ops = {
 	.set_alarm	= rtc_set_alarm,
 };
 
-static irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t arm_rtc_interrupt(int irq, void *dev_id,
+				     struct pt_regs *regs)
 {
 	writel(0, rtc_base + RTC_EOI);
 	return IRQ_HANDLED;
@@ -124,7 +125,7 @@ static int rtc_probe(struct amba_device *dev, void *id)
 
 	xtime.tv_sec = __raw_readl(rtc_base + RTC_DR);
 
-	ret = request_irq(dev->irq[0], rtc_interrupt, SA_INTERRUPT,
+	ret = request_irq(dev->irq[0], arm_rtc_interrupt, SA_INTERRUPT,
 			  "rtc-pl030", dev);
 	if (ret)
 		goto map_out;
diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
index fcfb81d13cf..7a68f098a02 100644
--- a/arch/arm/mach-omap1/serial.c
+++ b/arch/arm/mach-omap1/serial.c
@@ -252,9 +252,8 @@ static void __init omap_serial_set_port_wakeup(int gpio_nr)
 		return;
 	}
 	omap_set_gpio_direction(gpio_nr, 1);
-	set_irq_type(OMAP_GPIO_IRQ(gpio_nr), IRQT_RISING);
 	ret = request_irq(OMAP_GPIO_IRQ(gpio_nr), &omap_serial_wake_interrupt,
-			  0, "serial wakeup", NULL);
+			  SA_TRIGGER_RISING, "serial wakeup", NULL);
 	if (ret) {
 		omap_free_gpio(gpio_nr);
 		printk(KERN_ERR "No interrupt for UART wake GPIO: %i\n",
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 100fb31b515..5a7b873f29b 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -213,15 +213,14 @@ static int corgi_mci_init(struct device *dev, irqreturn_t (*corgi_detect_int)(in
 
 	corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 
-	err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int, SA_INTERRUPT,
-			     "MMC card detect", data);
+	err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
+			  SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
+			  "MMC card detect", data);
 	if (err) {
 		printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 		return -1;
 	}
 
-	set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
-
 	return 0;
 }
 
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index eef3de26ad3..663c9500598 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -146,15 +146,14 @@ static int poodle_mci_init(struct device *dev, irqreturn_t (*poodle_detect_int)(
 
 	poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 
-	err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int, SA_INTERRUPT,
-			     "MMC card detect", data);
+	err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int,
+			  SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
+			  "MMC card detect", data);
 	if (err) {
 		printk(KERN_ERR "poodle_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 		return -1;
 	}
 
-	set_irq_type(POODLE_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
-
 	return 0;
 }
 
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index f2007db0cda..a9eacc06555 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -296,15 +296,14 @@ static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(in
 
 	spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 
-	err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, SA_INTERRUPT,
-			     "MMC card detect", data);
+	err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
+			  SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
+			  "MMC card detect", data);
 	if (err) {
 		printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 		return -1;
 	}
 
-	set_irq_type(SPITZ_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
-
 	return 0;
 }
 
diff --git a/arch/arm/mach-realview/localtimer.c b/arch/arm/mach-realview/localtimer.c
index c9d7c596b20..caf6b8bb6c9 100644
--- a/arch/arm/mach-realview/localtimer.c
+++ b/arch/arm/mach-realview/localtimer.c
@@ -13,6 +13,7 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/smp.h>
+#include <linux/jiffies.h>
 
 #include <asm/mach/time.h>
 #include <asm/hardware/arm_twd.h>
diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c
index 5098b50158a..495f8c6ffcb 100644
--- a/arch/arm/mach-s3c2410/usb-simtec.c
+++ b/arch/arm/mach-s3c2410/usb-simtec.c
@@ -84,13 +84,13 @@ static void usb_simtec_enableoc(struct s3c2410_hcd_info *info, int on)
 	int ret;
 
 	if (on) {
-		ret = request_irq(IRQ_USBOC, usb_simtec_ocirq, SA_INTERRUPT,
+		ret = request_irq(IRQ_USBOC, usb_simtec_ocirq,
+				  SA_INTERRUPT | SA_TRIGGER_RISING |
+				   SA_TRIGGER_FALLING,
 				  "USB Over-current", info);
 		if (ret != 0) {
 			printk(KERN_ERR "failed to request usb oc irq\n");
 		}
-
-		set_irq_type(IRQ_USBOC, IRQT_BOTHEDGE);
 	} else {
 		free_irq(IRQ_USBOC, info);
 	}
diff --git a/arch/arm26/Kconfig b/arch/arm26/Kconfig
index 1f00b3d03a0..274e07019b4 100644
--- a/arch/arm26/Kconfig
+++ b/arch/arm26/Kconfig
@@ -34,10 +34,6 @@ config FORCE_MAX_ZONEORDER
         int
         default 9
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/arm26/kernel/asm-offsets.c b/arch/arm26/kernel/asm-offsets.c
index 4ccacaef94d..ac682d5fd03 100644
--- a/arch/arm26/kernel/asm-offsets.c
+++ b/arch/arm26/kernel/asm-offsets.c
@@ -25,13 +25,6 @@
 #if defined(__APCS_32__) && defined(CONFIG_CPU_26)
 #error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26
 #endif
-#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 95)
-#error Sorry, your compiler is known to miscompile kernels.  Only use gcc 2.95.3 and later.
-#endif
-#if __GNUC__ == 2 && __GNUC_MINOR__ == 95
-/* shame we can't detect the .1 or .2 releases */
-#warning GCC 2.95.2 and earlier miscompiles kernels.
-#endif
 
 /* Use marker if you need to separate the values later */
 
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index e5979d68e35..b8326194973 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -9,10 +9,6 @@ config MMU
 	bool
 	default y
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index ec85c0d6c6d..61261b78ced 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -274,6 +274,11 @@ config GPREL_DATA_NONE
 
 endchoice
 
+config FRV_ONCPU_SERIAL
+	bool "Use on-CPU serial ports"
+	select SERIAL_8250
+	default y
+
 config PCI
 	bool "Use PCI"
 	depends on MB93090_MB00
@@ -305,23 +310,7 @@ config RESERVE_DMA_COHERENT
 
 source "drivers/pci/Kconfig"
 
-config PCMCIA
-	tristate "Use PCMCIA"
-	help
-	  Say Y here if you want to attach PCMCIA- or PC-cards to your FR-V
-	  board.  These are credit-card size devices such as network cards,
-	  modems or hard drives often used with laptops computers.  There are
-	  actually two varieties of these cards: the older 16 bit PCMCIA cards
-	  and the newer 32 bit CardBus cards.  If you want to use CardBus
-	  cards, you need to say Y here and also to "CardBus support" below.
-
-	  To use your PC-cards, you will need supporting software from David
-	  Hinds pcmcia-cs package (see the file <file:Documentation/Changes>
-	  for location).  Please also read the PCMCIA-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
-
-	  To compile this driver as modules, choose M here: the
-	  modules will be called pcmcia_core and ds.
+source "drivers/pcmcia/Kconfig"
 
 #config MATH_EMULATION
 #	bool "Math emulation support (EXPERIMENTAL)"
diff --git a/arch/frv/Kconfig.debug b/arch/frv/Kconfig.debug
index 0034b654995..211f01bc4ca 100644
--- a/arch/frv/Kconfig.debug
+++ b/arch/frv/Kconfig.debug
@@ -2,32 +2,10 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-config EARLY_PRINTK
-	bool "Early printk"
-	depends on EMBEDDED && DEBUG_KERNEL
-	default n
-	help
-	  Write kernel log output directly into the VGA buffer or to a serial
-	  port.
-
-	  This is useful for kernel debugging when your machine crashes very
-	  early before the console code is initialized. For normal operation
-	  it is not recommended because it looks ugly and doesn't cooperate
-	  with klogd/syslogd or the X server. You should normally N here,
-	  unless you want to debug such a crash.
-
 config DEBUG_STACKOVERFLOW
 	bool "Check for stack overflows"
 	depends on DEBUG_KERNEL
 
-config DEBUG_PAGEALLOC
-	bool "Page alloc debugging"
-	depends on DEBUG_KERNEL
-	help
-	  Unmap pages from the kernel linear mapping after free_pages().
-	  This results in a large slowdown, but helps to find certain types
-	  of memory corruptions.
-
 config GDBSTUB
 	bool "Remote GDB kernel debugging"
 	depends on DEBUG_KERNEL
diff --git a/arch/frv/Makefile b/arch/frv/Makefile
index 54046d2386f..90c0fb8d9dc 100644
--- a/arch/frv/Makefile
+++ b/arch/frv/Makefile
@@ -109,10 +109,10 @@ bootstrap:
 	$(Q)$(MAKEBOOT) bootstrap
 
 archmrproper:
-	$(Q)$(MAKE) -C arch/frv/boot mrproper
+	$(Q)$(MAKE) $(build)=arch/frv/boot mrproper
 
 archclean:
-	$(Q)$(MAKE) -C arch/frv/boot clean
+	$(Q)$(MAKE) $(build)=arch/frv/boot clean
 
 archdep: scripts/mkdep symlinks
-	$(Q)$(MAKE) -C arch/frv/boot dep
+	$(Q)$(MAKE) $(build)=arch/frv/boot dep
diff --git a/arch/frv/kernel/Makefile b/arch/frv/kernel/Makefile
index 422f30ede57..5a827b349b5 100644
--- a/arch/frv/kernel/Makefile
+++ b/arch/frv/kernel/Makefile
@@ -21,3 +21,4 @@ obj-$(CONFIG_PM)		+= pm.o cmode.o
 obj-$(CONFIG_MB93093_PDK)	+= pm-mb93093.o
 obj-$(CONFIG_SYSCTL)		+= sysctl.o
 obj-$(CONFIG_FUTEX)		+= futex.o
+obj-$(CONFIG_MODULES)		+= module.o
diff --git a/arch/frv/kernel/frv_ksyms.c b/arch/frv/kernel/frv_ksyms.c
index 1a76d524719..5f118c89d09 100644
--- a/arch/frv/kernel/frv_ksyms.c
+++ b/arch/frv/kernel/frv_ksyms.c
@@ -16,10 +16,11 @@
 #include <asm/semaphore.h>
 #include <asm/checksum.h>
 #include <asm/hardirq.h>
-#include <asm/current.h>
+#include <asm/cacheflush.h>
 
 extern void dump_thread(struct pt_regs *, struct user *);
 extern long __memcpy_user(void *dst, const void *src, size_t count);
+extern long __memset_user(void *dst, const void *src, size_t count);
 
 /* platform dependent support */
 
@@ -50,7 +51,11 @@ EXPORT_SYMBOL(disable_irq);
 EXPORT_SYMBOL(__res_bus_clock_speed_HZ);
 EXPORT_SYMBOL(__page_offset);
 EXPORT_SYMBOL(__memcpy_user);
-EXPORT_SYMBOL(flush_dcache_page);
+EXPORT_SYMBOL(__memset_user);
+EXPORT_SYMBOL(frv_dcache_writeback);
+EXPORT_SYMBOL(frv_cache_invalidate);
+EXPORT_SYMBOL(frv_icache_invalidate);
+EXPORT_SYMBOL(frv_cache_wback_inv);
 
 #ifndef CONFIG_MMU
 EXPORT_SYMBOL(memory_start);
@@ -72,6 +77,9 @@ EXPORT_SYMBOL(memcmp);
 EXPORT_SYMBOL(memscan);
 EXPORT_SYMBOL(memmove);
 
+EXPORT_SYMBOL(__outsl_ns);
+EXPORT_SYMBOL(__insl_ns);
+
 EXPORT_SYMBOL(get_wchan);
 
 #ifdef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
@@ -80,14 +88,13 @@ EXPORT_SYMBOL(atomic_test_and_OR_mask);
 EXPORT_SYMBOL(atomic_test_and_XOR_mask);
 EXPORT_SYMBOL(atomic_add_return);
 EXPORT_SYMBOL(atomic_sub_return);
-EXPORT_SYMBOL(__xchg_8);
-EXPORT_SYMBOL(__xchg_16);
 EXPORT_SYMBOL(__xchg_32);
-EXPORT_SYMBOL(__cmpxchg_8);
-EXPORT_SYMBOL(__cmpxchg_16);
 EXPORT_SYMBOL(__cmpxchg_32);
 #endif
 
+EXPORT_SYMBOL(__debug_bug_printk);
+EXPORT_SYMBOL(__delay_loops_MHz);
+
 /*
  * libgcc functions - functions that are used internally by the
  * compiler...  (prototypes are not correct though, but that
@@ -101,6 +108,8 @@ extern void __divdi3(void);
 extern void __lshrdi3(void);
 extern void __moddi3(void);
 extern void __muldi3(void);
+extern void __mulll(void);
+extern void __umulll(void);
 extern void __negdi2(void);
 extern void __ucmpdi2(void);
 extern void __udivdi3(void);
@@ -116,8 +125,10 @@ EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__lshrdi3);
 //EXPORT_SYMBOL(__moddi3);
 EXPORT_SYMBOL(__muldi3);
+EXPORT_SYMBOL(__mulll);
+EXPORT_SYMBOL(__umulll);
 EXPORT_SYMBOL(__negdi2);
-//EXPORT_SYMBOL(__ucmpdi2);
+EXPORT_SYMBOL(__ucmpdi2);
 //EXPORT_SYMBOL(__udivdi3);
 //EXPORT_SYMBOL(__udivmoddi4);
 //EXPORT_SYMBOL(__umoddi3);
diff --git a/arch/frv/kernel/irq.c b/arch/frv/kernel/irq.c
index 8c524cdd271..59580c59c62 100644
--- a/arch/frv/kernel/irq.c
+++ b/arch/frv/kernel/irq.c
@@ -32,6 +32,7 @@
 #include <linux/irq.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/module.h>
 
 #include <asm/atomic.h>
 #include <asm/io.h>
@@ -178,6 +179,8 @@ void disable_irq_nosync(unsigned int irq)
 	spin_unlock_irqrestore(&level->lock, flags);
 }
 
+EXPORT_SYMBOL(disable_irq_nosync);
+
 /**
  *	disable_irq - disable an irq and wait for completion
  *	@irq: Interrupt to disable
@@ -204,6 +207,8 @@ void disable_irq(unsigned int irq)
 #endif
 }
 
+EXPORT_SYMBOL(disable_irq);
+
 /**
  *	enable_irq - enable handling of an irq
  *	@irq: Interrupt to enable
@@ -268,6 +273,8 @@ void enable_irq(unsigned int irq)
 	spin_unlock_irqrestore(&level->lock, flags);
 }
 
+EXPORT_SYMBOL(enable_irq);
+
 /*****************************************************************************/
 /*
  * handles all normal device IRQ's
@@ -425,6 +432,8 @@ int request_irq(unsigned int irq,
 	return retval;
 }
 
+EXPORT_SYMBOL(request_irq);
+
 /**
  *	free_irq - free an interrupt
  *	@irq: Interrupt line to free
@@ -496,6 +505,8 @@ void free_irq(unsigned int irq, void *dev_id)
 	}
 }
 
+EXPORT_SYMBOL(free_irq);
+
 /*
  * IRQ autodetection code..
  *
@@ -519,6 +530,8 @@ unsigned long probe_irq_on(void)
 	return 0;
 }
 
+EXPORT_SYMBOL(probe_irq_on);
+
 /*
  * Return a mask of triggered interrupts (this
  * can handle only legacy ISA interrupts).
@@ -542,6 +555,8 @@ unsigned int probe_irq_mask(unsigned long xmask)
 	return 0;
 }
 
+EXPORT_SYMBOL(probe_irq_mask);
+
 /*
  * Return the one interrupt that triggered (this can
  * handle any interrupt source).
@@ -571,6 +586,8 @@ int probe_irq_off(unsigned long xmask)
 	return -1;
 }
 
+EXPORT_SYMBOL(probe_irq_off);
+
 /* this was setup_x86_irq but it seems pretty generic */
 int setup_irq(unsigned int irq, struct irqaction *new)
 {
diff --git a/arch/frv/kernel/module.c b/arch/frv/kernel/module.c
new file mode 100644
index 00000000000..850d168f69f
--- /dev/null
+++ b/arch/frv/kernel/module.c
@@ -0,0 +1,80 @@
+/* module.c: FRV specific module loading bits
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ * - Derived from arch/i386/kernel/module.c, Copyright (C) 2001 Rusty Russell.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/moduleloader.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(fmt...)
+#endif
+
+void *module_alloc(unsigned long size)
+{
+	if (size == 0)
+		return NULL;
+
+	return vmalloc_exec(size);
+}
+
+
+/* Free memory returned from module_alloc */
+void module_free(struct module *mod, void *module_region)
+{
+	vfree(module_region);
+	/* FIXME: If module_region == mod->init_region, trim exception
+           table entries. */
+}
+
+/* We don't need anything special. */
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+			      Elf_Shdr *sechdrs,
+			      char *secstrings,
+			      struct module *mod)
+{
+	return 0;
+}
+
+int apply_relocate(Elf32_Shdr *sechdrs,
+		   const char *strtab,
+		   unsigned int symindex,
+		   unsigned int relsec,
+		   struct module *me)
+{
+	printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n", me->name);
+	return -ENOEXEC;
+}
+
+int apply_relocate_add(Elf32_Shdr *sechdrs,
+		       const char *strtab,
+		       unsigned int symindex,
+		       unsigned int relsec,
+		       struct module *me)
+{
+	printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n", me->name);
+	return -ENOEXEC;
+}
+
+int module_finalize(const Elf_Ehdr *hdr,
+		    const Elf_Shdr *sechdrs,
+		    struct module *me)
+{
+	return 0;
+}
+
+void module_arch_cleanup(struct module *mod)
+{
+}
diff --git a/arch/frv/kernel/pm.c b/arch/frv/kernel/pm.c
index 712c3c24c95..f0b8fff3e73 100644
--- a/arch/frv/kernel/pm.c
+++ b/arch/frv/kernel/pm.c
@@ -13,6 +13,7 @@
 
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/pm.h>
 #include <linux/pm_legacy.h>
 #include <linux/sched.h>
@@ -27,6 +28,7 @@
 #include "local.h"
 
 void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
 
 extern void frv_change_cmode(int);
 
diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c
index 767ebb55bd8..5908deae960 100644
--- a/arch/frv/kernel/setup.c
+++ b/arch/frv/kernel/setup.c
@@ -787,6 +787,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 	/* register those serial ports that are available */
+#ifdef CONFIG_FRV_ONCPU_SERIAL
 #ifndef CONFIG_GDBSTUB_UART0
 	__reg(UART0_BASE + UART_IER * 8) = 0;
 	early_serial_setup(&__frv_uart0);
@@ -795,6 +796,7 @@ void __init setup_arch(char **cmdline_p)
 	__reg(UART1_BASE + UART_IER * 8) = 0;
 	early_serial_setup(&__frv_uart1);
 #endif
+#endif
 
 #if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH)
 	/* we need to initialize the Flashrom device here since we might
diff --git a/arch/frv/kernel/time.c b/arch/frv/kernel/time.c
index 2e9741227b7..24cf85f89e4 100644
--- a/arch/frv/kernel/time.c
+++ b/arch/frv/kernel/time.c
@@ -189,6 +189,8 @@ void do_gettimeofday(struct timeval *tv)
 	tv->tv_usec = usec;
 }
 
+EXPORT_SYMBOL(do_gettimeofday);
+
 int do_settimeofday(struct timespec *tv)
 {
 	time_t wtm_sec, sec = tv->tv_sec;
@@ -218,6 +220,7 @@ int do_settimeofday(struct timespec *tv)
 	clock_was_set();
 	return 0;
 }
+
 EXPORT_SYMBOL(do_settimeofday);
 
 /*
diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 89073cae4b5..9eb84b2e6ab 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -19,6 +19,7 @@
 #include <linux/string.h>
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <linux/module.h>
 
 #include <asm/setup.h>
 #include <asm/fpu.h>
@@ -250,6 +251,8 @@ void dump_stack(void)
 	show_stack(NULL, NULL);
 }
 
+EXPORT_SYMBOL(dump_stack);
+
 void show_stack(struct task_struct *task, unsigned long *sp)
 {
 }
diff --git a/arch/frv/kernel/uaccess.c b/arch/frv/kernel/uaccess.c
index f3fd58a5bc4..9b751c0f0e8 100644
--- a/arch/frv/kernel/uaccess.c
+++ b/arch/frv/kernel/uaccess.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/mm.h>
+#include <linux/module.h>
 #include <asm/uaccess.h>
 
 /*****************************************************************************/
@@ -58,8 +59,11 @@ long strncpy_from_user(char *dst, const char *src, long count)
 		memset(p, 0, count); /* clear remainder of buffer [security] */
 
 	return err;
+
 } /* end strncpy_from_user() */
 
+EXPORT_SYMBOL(strncpy_from_user);
+
 /*****************************************************************************/
 /*
  * Return the size of a string (including the ending 0)
@@ -92,4 +96,7 @@ long strnlen_user(const char *src, long count)
 	}
 
 	return p - src + 1; /* return length including NUL */
+
 } /* end strnlen_user() */
+
+EXPORT_SYMBOL(strnlen_user);
diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S
index fceafd2cc20..f474534ba78 100644
--- a/arch/frv/kernel/vmlinux.lds.S
+++ b/arch/frv/kernel/vmlinux.lds.S
@@ -112,6 +112,7 @@ SECTIONS
 #endif
 	)
 	SCHED_TEXT
+	LOCK_TEXT
 	*(.fixup)
 	*(.gnu.warning)
 	*(.exitcall.exit)
diff --git a/arch/frv/lib/Makefile b/arch/frv/lib/Makefile
index 19be2626d5e..08be305c9f4 100644
--- a/arch/frv/lib/Makefile
+++ b/arch/frv/lib/Makefile
@@ -3,6 +3,6 @@
 #
 
 lib-y := \
-	__ashldi3.o __lshrdi3.o __muldi3.o __ashrdi3.o __negdi2.o \
+	__ashldi3.o __lshrdi3.o __muldi3.o __ashrdi3.o __negdi2.o __ucmpdi2.o \
 	checksum.o memcpy.o memset.o atomic-ops.o \
 	outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o
diff --git a/arch/frv/lib/__ucmpdi2.S b/arch/frv/lib/__ucmpdi2.S
new file mode 100644
index 00000000000..d892f16ffaa
--- /dev/null
+++ b/arch/frv/lib/__ucmpdi2.S
@@ -0,0 +1,45 @@
+/* __ucmpdi2.S: 64-bit unsigned compare
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+
+        .text
+        .p2align	4
+
+###############################################################################
+#
+# int __ucmpdi2(unsigned long long a [GR8:GR9],
+#		unsigned long long b [GR10:GR11])
+#
+# - returns 0, 1, or 2 as a <, =, > b respectively.
+#
+###############################################################################
+        .globl		__ucmpdi2
+        .type		__ucmpdi2,@function
+__ucmpdi2:
+	or.p		gr8,gr0,gr4
+	subcc		gr8,gr10,gr0,icc0
+	setlos.p	#0,gr8
+	bclr		icc0,#2			; a.msw < b.msw
+
+	setlos.p	#2,gr8
+	bhilr		icc0,#0			; a.msw > b.msw
+
+	subcc.p		gr9,gr11,gr0,icc1
+	setlos		#0,gr8
+	setlos.p	#2,gr9
+	setlos		#1,gr7
+	cknc		icc1,cc6
+	cor.p		gr9,gr0,gr8,		cc6,#1
+	cckls		icc1,cc4,		cc6,#1
+	andcr		cc6,cc4,cc4
+	cor		gr7,gr0,gr8,		cc4,#1
+	bralr
+	.size		__ucmpdi2, .-__ucmpdi2
diff --git a/arch/frv/lib/atomic-ops.S b/arch/frv/lib/atomic-ops.S
index b03d510a89e..545cd325ac5 100644
--- a/arch/frv/lib/atomic-ops.S
+++ b/arch/frv/lib/atomic-ops.S
@@ -129,48 +129,6 @@ atomic_sub_return:
 
 ###############################################################################
 #
-# uint8_t __xchg_8(uint8_t i, uint8_t *v)
-#
-###############################################################################
-	.globl		__xchg_8
-        .type		__xchg_8,@function
-__xchg_8:
-	or.p		gr8,gr8,gr10
-0:
-	orcc		gr0,gr0,gr0,icc3		/* set ICC3.Z */
-	ckeq		icc3,cc7
-	ldub.p		@(gr9,gr0),gr8			/* LD.P/ORCR must be atomic */
-	orcr		cc7,cc7,cc3			/* set CC3 to true */
-	cstb.p		gr10,@(gr9,gr0)		,cc3,#1
-	corcc		gr29,gr29,gr0		,cc3,#1	/* clear ICC3.Z if store happens */
-	beq		icc3,#0,0b
-	bralr
-
-	.size		__xchg_8, .-__xchg_8
-
-###############################################################################
-#
-# uint16_t __xchg_16(uint16_t i, uint16_t *v)
-#
-###############################################################################
-	.globl		__xchg_16
-        .type		__xchg_16,@function
-__xchg_16:
-	or.p		gr8,gr8,gr10
-0:
-	orcc		gr0,gr0,gr0,icc3		/* set ICC3.Z */
-	ckeq		icc3,cc7
-	lduh.p		@(gr9,gr0),gr8			/* LD.P/ORCR must be atomic */
-	orcr		cc7,cc7,cc3			/* set CC3 to true */
-	csth.p		gr10,@(gr9,gr0)		,cc3,#1
-	corcc		gr29,gr29,gr0		,cc3,#1	/* clear ICC3.Z if store happens */
-	beq		icc3,#0,0b
-	bralr
-
-	.size		__xchg_16, .-__xchg_16
-
-###############################################################################
-#
 # uint32_t __xchg_32(uint32_t i, uint32_t *v)
 #
 ###############################################################################
@@ -192,56 +150,6 @@ __xchg_32:
 
 ###############################################################################
 #
-# uint8_t __cmpxchg_8(uint8_t *v, uint8_t test, uint8_t new)
-#
-###############################################################################
-	.globl		__cmpxchg_8
-        .type		__cmpxchg_8,@function
-__cmpxchg_8:
-	or.p		gr8,gr8,gr11
-0:
-	orcc		gr0,gr0,gr0,icc3
-	ckeq		icc3,cc7
-	ldub.p		@(gr11,gr0),gr8
-	orcr		cc7,cc7,cc3
-	sub		gr8,gr9,gr7
-	sllicc		gr7,#24,gr0,icc0
-	bne		icc0,#0,1f
-	cstb.p		gr10,@(gr11,gr0)	,cc3,#1
-	corcc		gr29,gr29,gr0		,cc3,#1
-	beq		icc3,#0,0b
-1:
-	bralr
-
-	.size		__cmpxchg_8, .-__cmpxchg_8
-
-###############################################################################
-#
-# uint16_t __cmpxchg_16(uint16_t *v, uint16_t test, uint16_t new)
-#
-###############################################################################
-	.globl		__cmpxchg_16
-        .type		__cmpxchg_16,@function
-__cmpxchg_16:
-	or.p		gr8,gr8,gr11
-0:
-	orcc		gr0,gr0,gr0,icc3
-	ckeq		icc3,cc7
-	lduh.p		@(gr11,gr0),gr8
-	orcr		cc7,cc7,cc3
-	sub		gr8,gr9,gr7
-	sllicc		gr7,#16,gr0,icc0
-	bne		icc0,#0,1f
-	csth.p		gr10,@(gr11,gr0)	,cc3,#1
-	corcc		gr29,gr29,gr0		,cc3,#1
-	beq		icc3,#0,0b
-1:
-	bralr
-
-	.size		__cmpxchg_16, .-__cmpxchg_16
-
-###############################################################################
-#
 # uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new)
 #
 ###############################################################################
diff --git a/arch/frv/lib/checksum.c b/arch/frv/lib/checksum.c
index 7bf5bd6cac8..20e7dfc474e 100644
--- a/arch/frv/lib/checksum.c
+++ b/arch/frv/lib/checksum.c
@@ -33,6 +33,7 @@
 
 #include <net/checksum.h>
 #include <asm/checksum.h>
+#include <linux/module.h>
 
 static inline unsigned short from32to16(unsigned long x)
 {
@@ -115,34 +116,52 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
 	return result;
 }
 
+EXPORT_SYMBOL(csum_partial);
+
 /*
  * this routine is used for miscellaneous IP-like checksums, mainly
  * in icmp.c
  */
 unsigned short ip_compute_csum(const unsigned char * buff, int len)
 {
-	return ~do_csum(buff,len);
+	return ~do_csum(buff, len);
 }
 
+EXPORT_SYMBOL(ip_compute_csum);
+
 /*
  * copy from fs while checksumming, otherwise like csum_partial
  */
-
 unsigned int
-csum_partial_copy_from_user(const char *src, char *dst, int len, int sum, int *csum_err)
+csum_partial_copy_from_user(const char __user *src, char *dst,
+			    int len, int sum, int *csum_err)
 {
-	if (csum_err) *csum_err = 0;
-	memcpy(dst, src, len);
+	int rem;
+
+	if (csum_err)
+		*csum_err = 0;
+
+	rem = copy_from_user(dst, src, len);
+	if (rem != 0) {
+		if (csum_err)
+			*csum_err = -EFAULT;
+		memset(dst + len - rem, 0, rem);
+		len = rem;
+	}
+
 	return csum_partial(dst, len, sum);
 }
 
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+
 /*
  * copy from ds while checksumming, otherwise like csum_partial
  */
-
 unsigned int
 csum_partial_copy(const char *src, char *dst, int len, int sum)
 {
 	memcpy(dst, src, len);
 	return csum_partial(dst, len, sum);
 }
+
+EXPORT_SYMBOL(csum_partial_copy);
diff --git a/arch/frv/mb93090-mb00/Makefile b/arch/frv/mb93090-mb00/Makefile
index 3faf0f8cf9b..76595e87073 100644
--- a/arch/frv/mb93090-mb00/Makefile
+++ b/arch/frv/mb93090-mb00/Makefile
@@ -3,7 +3,7 @@
 #
 
 ifeq "$(CONFIG_PCI)" "y"
-obj-y := pci-frv.o pci-irq.o pci-vdk.o
+obj-y := pci-frv.o pci-irq.o pci-vdk.o pci-iomap.o
 
 ifeq "$(CONFIG_MMU)" "y"
 obj-y += pci-dma.o
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 2082a9647f4..4985466b1a7 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -83,6 +83,8 @@ void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_hand
 	return NULL;
 }
 
+EXPORT_SYMBOL(dma_alloc_coherent);
+
 void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle)
 {
 	struct dma_alloc_record *rec;
@@ -102,6 +104,8 @@ void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_
 	BUG();
 }
 
+EXPORT_SYMBOL(dma_free_coherent);
+
 /*
  * Map a single buffer of the indicated size for DMA in streaming mode.
  * The 32-bit bus address to use is returned.
@@ -120,6 +124,8 @@ dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
 	return virt_to_bus(ptr);
 }
 
+EXPORT_SYMBOL(dma_map_single);
+
 /*
  * Map a set of buffers described by scatterlist in streaming
  * mode for DMA.  This is the scather-gather version of the
@@ -150,3 +156,5 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 
 	return nents;
 }
+
+EXPORT_SYMBOL(dma_map_sg);
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index 86fbdadc51b..671ce1e8434 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -28,11 +28,15 @@ void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_hand
 	return ret;
 }
 
+EXPORT_SYMBOL(dma_alloc_coherent);
+
 void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle)
 {
 	consistent_free(vaddr);
 }
 
+EXPORT_SYMBOL(dma_free_coherent);
+
 /*
  * Map a single buffer of the indicated size for DMA in streaming mode.
  * The 32-bit bus address to use is returned.
@@ -51,6 +55,8 @@ dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
 	return virt_to_bus(ptr);
 }
 
+EXPORT_SYMBOL(dma_map_single);
+
 /*
  * Map a set of buffers described by scatterlist in streaming
  * mode for DMA.  This is the scather-gather version of the
@@ -96,6 +102,8 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 	return nents;
 }
 
+EXPORT_SYMBOL(dma_map_sg);
+
 dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long offset,
 			size_t size, enum dma_data_direction direction)
 {
@@ -103,3 +111,5 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long off
 	flush_dcache_page(page);
 	return (dma_addr_t) page_to_phys(page) + offset;
 }
+
+EXPORT_SYMBOL(dma_map_page);
diff --git a/arch/frv/mb93090-mb00/pci-iomap.c b/arch/frv/mb93090-mb00/pci-iomap.c
new file mode 100644
index 00000000000..068fa04bd52
--- /dev/null
+++ b/arch/frv/mb93090-mb00/pci-iomap.c
@@ -0,0 +1,29 @@
+/* pci-iomap.c: description
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/pci.h>
+#include <linux/module.h>
+
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
+{
+	unsigned long start = pci_resource_start(dev, bar);
+	unsigned long len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len || !start)
+		return NULL;
+
+	if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM))
+		return (void __iomem *) start;
+
+	return NULL;
+}
+
+EXPORT_SYMBOL(pci_iomap);
diff --git a/arch/frv/mm/cache-page.c b/arch/frv/mm/cache-page.c
index 683b5e34431..0261cbe153b 100644
--- a/arch/frv/mm/cache-page.c
+++ b/arch/frv/mm/cache-page.c
@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
+#include <linux/module.h>
 #include <asm/pgalloc.h>
 
 /*****************************************************************************/
@@ -38,6 +39,8 @@ void flush_dcache_page(struct page *page)
 
 } /* end flush_dcache_page() */
 
+EXPORT_SYMBOL(flush_dcache_page);
+
 /*****************************************************************************/
 /*
  * ICI takes a virtual address and the page may not currently have one
@@ -64,3 +67,5 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
 	}
 
 } /* end flush_icache_user_range() */
+
+EXPORT_SYMBOL(flush_icache_user_range);
diff --git a/arch/frv/mm/extable.c b/arch/frv/mm/extable.c
index 41be1128dc6..caacf030ac7 100644
--- a/arch/frv/mm/extable.c
+++ b/arch/frv/mm/extable.c
@@ -43,7 +43,7 @@ static inline unsigned long search_one_table(const struct exception_table_entry
  */
 unsigned long search_exception_table(unsigned long pc)
 {
-	unsigned long ret = 0;
+	const struct exception_table_entry *extab;
 
 	/* determine if the fault lay during a memcpy_user or a memset_user */
 	if (__frame->lr == (unsigned long) &__memset_user_error_lr &&
@@ -55,9 +55,10 @@ unsigned long search_exception_table(unsigned long pc)
 		 */
 		return (unsigned long) &__memset_user_error_handler;
 	}
-	else if (__frame->lr == (unsigned long) &__memcpy_user_error_lr &&
-		 (unsigned long) &memcpy <= pc && pc < (unsigned long) &__memcpy_end
-		 ) {
+
+	if (__frame->lr == (unsigned long) &__memcpy_user_error_lr &&
+	    (unsigned long) &memcpy <= pc && pc < (unsigned long) &__memcpy_end
+	    ) {
 		/* the fault occurred in a protected memset
 		 * - we search for the return address (in LR) instead of the program counter
 		 * - it was probably during a copy_to/from_user()
@@ -65,27 +66,10 @@ unsigned long search_exception_table(unsigned long pc)
 		return (unsigned long) &__memcpy_user_error_handler;
 	}
 
-#ifndef CONFIG_MODULES
-	/* there is only the kernel to search.  */
-	ret = search_one_table(__start___ex_table, __stop___ex_table - 1, pc);
-	return ret;
-
-#else
-	/* the kernel is the last "module" -- no need to treat it special */
-	unsigned long flags;
-	struct module *mp;
+	extab = search_exception_tables(pc);
+	if (extab)
+		return extab->fixup;
 
-	spin_lock_irqsave(&modlist_lock, flags);
-
-	for (mp = module_list; mp != NULL; mp = mp->next) {
-		if (mp->ex_table_start == NULL || !(mp->flags & (MOD_RUNNING | MOD_INITIALIZING)))
-			continue;
-		ret = search_one_table(mp->ex_table_start, mp->ex_table_end - 1, pc);
-		if (ret)
-			break;
-	}
+	return 0;
 
-	spin_unlock_irqrestore(&modlist_lock, flags);
-	return ret;
-#endif
 } /* end search_exception_table() */
diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c
index 7dc8fbf3af9..7f77db7fabc 100644
--- a/arch/frv/mm/highmem.c
+++ b/arch/frv/mm/highmem.c
@@ -9,6 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/highmem.h>
+#include <linux/module.h>
 
 void *kmap(struct page *page)
 {
@@ -18,6 +19,8 @@ void *kmap(struct page *page)
 	return kmap_high(page);
 }
 
+EXPORT_SYMBOL(kmap);
+
 void kunmap(struct page *page)
 {
 	if (in_interrupt())
@@ -27,7 +30,12 @@ void kunmap(struct page *page)
 	kunmap_high(page);
 }
 
+EXPORT_SYMBOL(kunmap);
+
 struct page *kmap_atomic_to_page(void *ptr)
 {
 	return virt_to_page(ptr);
 }
+
+
+EXPORT_SYMBOL(kmap_atomic_to_page);
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 26698a49f15..80940d712ac 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -21,10 +21,6 @@ config FPU
 	bool
 	default n
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 968fabd8723..d849c6870e3 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -29,10 +29,6 @@ config MMU
 config SBUS
 	bool
 
-config UID16
-	bool
-	default y
-
 config GENERIC_ISA_DMA
 	bool
 	default y
@@ -630,10 +626,6 @@ config REGPARM
 	and passes the first three arguments of a function call in registers.
 	This will probably break binary only modules.
 
-	This feature is only enabled for gcc-3.0 and later - earlier compilers
-	generate incorrect output with certain kernel constructs when
-	-mregparm=3 is used.
-
 config SECCOMP
 	bool "Enable seccomp to safely compute untrusted bytecode"
 	depends on PROC_FS
@@ -703,7 +695,7 @@ depends on PM && !X86_VISWS
 
 config APM
 	tristate "APM (Advanced Power Management) BIOS support"
-	depends on PM && PM_LEGACY
+	depends on PM
 	---help---
 	  APM is a BIOS specification for saving power using several different
 	  techniques. This is mostly useful for battery powered laptops with
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index d121ea18460..b84119f9cc6 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -37,10 +37,7 @@ CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 # CPU-specific tuning. Anything which can be shared with UML should go here.
 include $(srctree)/arch/i386/Makefile.cpu
 
-# -mregparm=3 works ok on gcc-3.0 and later
-#
-GCC_VERSION			:= $(call cc-version)
-cflags-$(CONFIG_REGPARM) 	+= $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)
+cflags-$(CONFIG_REGPARM) 	+= -mregparm=3
 
 # Disable unit-at-a-time mode, it makes gcc use a lot more stack
 # due to the lack of sharing of stacklots.
diff --git a/arch/i386/Makefile.cpu b/arch/i386/Makefile.cpu
index 8e51456df23..dcd936ef45d 100644
--- a/arch/i386/Makefile.cpu
+++ b/arch/i386/Makefile.cpu
@@ -1,7 +1,7 @@
 # CPU tuning section - shared with UML.
 # Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
 
-#-mtune exists since gcc 3.4, and some -mcpu flavors didn't exist in gcc 2.95.
+#-mtune exists since gcc 3.4
 HAS_MTUNE	:= $(call cc-option-yn, -mtune=i386)
 ifeq ($(HAS_MTUNE),y)
 tune		= $(call cc-option,-mtune=$(1),)
@@ -14,7 +14,7 @@ cflags-$(CONFIG_M386)		+= -march=i386
 cflags-$(CONFIG_M486)		+= -march=i486
 cflags-$(CONFIG_M586)		+= -march=i586
 cflags-$(CONFIG_M586TSC)	+= -march=i586
-cflags-$(CONFIG_M586MMX)	+= $(call cc-option,-march=pentium-mmx,-march=i586)
+cflags-$(CONFIG_M586MMX)	+= -march=pentium-mmx
 cflags-$(CONFIG_M686)		+= -march=i686
 cflags-$(CONFIG_MPENTIUMII)	+= -march=i686 $(call tune,pentium2)
 cflags-$(CONFIG_MPENTIUMIII)	+= -march=i686 $(call tune,pentium3)
@@ -23,8 +23,8 @@ cflags-$(CONFIG_MPENTIUM4)	+= -march=i686 $(call tune,pentium4)
 cflags-$(CONFIG_MK6)		+= -march=k6
 # Please note, that patches that add -march=athlon-xp and friends are pointless.
 # They make zero difference whatsosever to performance at this time.
-cflags-$(CONFIG_MK7)		+= $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
-cflags-$(CONFIG_MK8)		+= $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
+cflags-$(CONFIG_MK7)		+= -march=athlon
+cflags-$(CONFIG_MK8)		+= $(call cc-option,-march=k8,-march=athlon)
 cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
 cflags-$(CONFIG_MEFFICEON)	+= -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
 cflags-$(CONFIG_MWINCHIPC6)	+= $(call cc-option,-march=winchip-c6,-march=i586)
@@ -37,5 +37,5 @@ cflags-$(CONFIG_MVIAC3_2)	+= $(call cc-option,-march=c3-2,-march=i686)
 cflags-$(CONFIG_X86_ELAN)	+= -march=i486
 
 # Geode GX1 support
-cflags-$(CONFIG_MGEODEGX1)		+= $(call cc-option,-march=pentium-mmx,-march=i486)
+cflags-$(CONFIG_MGEODEGX1)	+= -march=pentium-mmx
 
diff --git a/arch/i386/boot/compressed/misc.c b/arch/i386/boot/compressed/misc.c
index 82a807f9f5e..f19f3a7492a 100644
--- a/arch/i386/boot/compressed/misc.c
+++ b/arch/i386/boot/compressed/misc.c
@@ -11,7 +11,7 @@
 
 #include <linux/linkage.h>
 #include <linux/vmalloc.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
 #include <asm/io.h>
 #include <asm/page.h>
 
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index f10de0f2c5e..be1880bb75b 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -4,10 +4,10 @@
 
 extra-y := head.o init_task.o vmlinux.lds
 
-obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
+obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o \
 		ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
 		pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \
-		doublefault.o quirks.o i8237.o
+		quirks.o i8237.o
 
 obj-y				+= cpu/
 obj-y				+= timers/
@@ -33,6 +33,8 @@ obj-y				+= sysenter.o vsyscall.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat.o
 obj-$(CONFIG_HPET_TIMER) 	+= time_hpet.o
 obj-$(CONFIG_EFI) 		+= efi.o efi_stub.o
+obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault.o
+obj-$(CONFIG_VM86)		+= vm86.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 
 EXTRA_AFLAGS   := -traditional
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index 2d793d4aef1..9d8827156e5 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -2291,7 +2291,9 @@ static int __init apm_init(void)
 		apm_info.disabled = 1;
 		return -ENODEV;
 	}
+#ifdef CONFIG_PM_LEGACY
 	pm_active = 1;
+#endif
 
 	/*
 	 * Set up a segment that references the real mode segment 0x40
@@ -2382,7 +2384,9 @@ static void __exit apm_exit(void)
 	exit_kapmd = 1;
 	while (kapmd_running)
 		schedule();
+#ifdef CONFIG_PM_LEGACY
 	pm_active = 0;
+#endif
 }
 
 module_init(apm_init);
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index cca655688ff..170400879f4 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -609,8 +609,10 @@ void __devinit cpu_init(void)
 	load_TR_desc();
 	load_LDT(&init_mm.context);
 
+#ifdef CONFIG_DOUBLEFAULT
 	/* Set up doublefault TSS pointer in the GDT */
 	__set_tss_desc(cpu, GDT_ENTRY_DOUBLEFAULT_TSS, &doublefault_tss);
+#endif
 
 	/* Clear %fs and %gs. */
 	asm volatile ("xorl %eax, %eax; movl %eax, %fs; movl %eax, %gs");
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 607c0600750..4d704724b2f 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -323,6 +323,7 @@ work_notifysig:				# deal with pending signals and
 
 	ALIGN
 work_notifysig_v86:
+#ifdef CONFIG_VM86
 	pushl %ecx			# save ti_flags for do_notify_resume
 	call save_v86_state		# %eax contains pt_regs pointer
 	popl %ecx
@@ -330,6 +331,7 @@ work_notifysig_v86:
 	xorl %edx, %edx
 	call do_notify_resume
 	jmp resume_userspace
+#endif
 
 	# perform syscall exit tracing
 	ALIGN
diff --git a/arch/i386/kernel/init_task.c b/arch/i386/kernel/init_task.c
index 9caa8e8db80..cff95d10a4d 100644
--- a/arch/i386/kernel/init_task.c
+++ b/arch/i386/kernel/init_task.c
@@ -42,5 +42,5 @@ EXPORT_SYMBOL(init_task);
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
  * no more per-task TSS's.
  */ 
-DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_maxaligned_in_smp = INIT_TSS;
+DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS;
 
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index 1a201a93286..f3a9c78c4a2 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -19,7 +19,7 @@
 #include <linux/cpu.h>
 #include <linux/delay.h>
 
-DEFINE_PER_CPU(irq_cpustat_t, irq_stat) ____cacheline_maxaligned_in_smp;
+DEFINE_PER_CPU(irq_cpustat_t, irq_stat) ____cacheline_internodealigned_in_smp;
 EXPORT_PER_CPU_SYMBOL(irq_stat);
 
 #ifndef CONFIG_X86_LOCAL_APIC
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 45e7f0ac4b0..035928f3f6c 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -48,6 +48,7 @@
 #include <asm/processor.h>
 #include <asm/i387.h>
 #include <asm/desc.h>
+#include <asm/vm86.h>
 #ifdef CONFIG_MATH_EMULATION
 #include <asm/math_emu.h>
 #endif
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S
index f7ba4acc20e..6ff3e524322 100644
--- a/arch/i386/kernel/syscall_table.S
+++ b/arch/i386/kernel/syscall_table.S
@@ -293,3 +293,4 @@ ENTRY(sys_call_table)
 	.long sys_inotify_init
 	.long sys_inotify_add_watch
 	.long sys_inotify_rm_watch
+	.long sys_migrate_pages
diff --git a/arch/i386/kernel/time_hpet.c b/arch/i386/kernel/time_hpet.c
index 9caeaa315cd..a529f0cdce1 100644
--- a/arch/i386/kernel/time_hpet.c
+++ b/arch/i386/kernel/time_hpet.c
@@ -259,8 +259,6 @@ __setup("hpet=", hpet_setup);
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
 
-extern irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-
 #define DEFAULT_RTC_INT_FREQ 	64
 #define RTC_NUM_INTS 		1
 
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 67932ad5308..57b047c27e4 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -37,10 +37,6 @@ $(error Sorry, you need a newer version of the assember, one that is built from
 		ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz)
 endif
 
-ifneq ($(shell if [ $(GCC_VERSION) -lt 0300 ] ; then echo "bad"; fi ;),)
-$(error Sorry, your compiler is too old.  GCC v2.96 is known to generate bad code.)
-endif
-
 ifeq ($(GCC_VERSION),0304)
 	cflags-$(CONFIG_ITANIUM)	+= -mtune=merced
 	cflags-$(CONFIG_MCKINLEY)	+= -mtune=mckinley
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index dc282710421..9f8e8d55887 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -1761,21 +1761,15 @@ sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data)
 
 	lock_kernel();
 	if (request == PTRACE_TRACEME) {
-		ret = sys_ptrace(request, pid, addr, data);
+		ret = ptrace_traceme();
 		goto out;
 	}
 
-	ret = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
 		goto out;
-	ret = -EPERM;
-	if (pid == 1)		/* no messing around with init! */
-		goto out_tsk;
+	}
 
 	if (request == PTRACE_ATTACH) {
 		ret = sys_ptrace(request, pid, addr, data);
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index a3aa45cbcfa..c485a3b32ba 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -247,6 +247,32 @@ typedef struct kern_memdesc {
 
 static kern_memdesc_t *kern_memmap;
 
+#define efi_md_size(md)	(md->num_pages << EFI_PAGE_SHIFT)
+
+static inline u64
+kmd_end(kern_memdesc_t *kmd)
+{
+	return (kmd->start + (kmd->num_pages << EFI_PAGE_SHIFT));
+}
+
+static inline u64
+efi_md_end(efi_memory_desc_t *md)
+{
+	return (md->phys_addr + efi_md_size(md));
+}
+
+static inline int
+efi_wb(efi_memory_desc_t *md)
+{
+	return (md->attribute & EFI_MEMORY_WB);
+}
+
+static inline int
+efi_uc(efi_memory_desc_t *md)
+{
+	return (md->attribute & EFI_MEMORY_UC);
+}
+
 static void
 walk (efi_freemem_callback_t callback, void *arg, u64 attr)
 {
@@ -595,8 +621,8 @@ efi_get_iobase (void)
 	return 0;
 }
 
-u32
-efi_mem_type (unsigned long phys_addr)
+static efi_memory_desc_t *
+efi_memory_descriptor (unsigned long phys_addr)
 {
 	void *efi_map_start, *efi_map_end, *p;
 	efi_memory_desc_t *md;
@@ -610,13 +636,13 @@ efi_mem_type (unsigned long phys_addr)
 		md = p;
 
 		if (phys_addr - md->phys_addr < (md->num_pages << EFI_PAGE_SHIFT))
-			 return md->type;
+			 return md;
 	}
 	return 0;
 }
 
-u64
-efi_mem_attributes (unsigned long phys_addr)
+static int
+efi_memmap_has_mmio (void)
 {
 	void *efi_map_start, *efi_map_end, *p;
 	efi_memory_desc_t *md;
@@ -629,36 +655,98 @@ efi_mem_attributes (unsigned long phys_addr)
 	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
 		md = p;
 
-		if (phys_addr - md->phys_addr < (md->num_pages << EFI_PAGE_SHIFT))
-			return md->attribute;
+		if (md->type == EFI_MEMORY_MAPPED_IO)
+			return 1;
 	}
 	return 0;
 }
+
+u32
+efi_mem_type (unsigned long phys_addr)
+{
+	efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
+
+	if (md)
+		return md->type;
+	return 0;
+}
+
+u64
+efi_mem_attributes (unsigned long phys_addr)
+{
+	efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
+
+	if (md)
+		return md->attribute;
+	return 0;
+}
 EXPORT_SYMBOL(efi_mem_attributes);
 
+/*
+ * Determines whether the memory at phys_addr supports the desired
+ * attribute (WB, UC, etc).  If this returns 1, the caller can safely
+ * access *size bytes at phys_addr with the specified attribute.
+ */
+static int
+efi_mem_attribute_range (unsigned long phys_addr, unsigned long *size, u64 attr)
+{
+	efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
+	unsigned long md_end;
+
+	if (!md || (md->attribute & attr) != attr)
+		return 0;
+
+	do {
+		md_end = efi_md_end(md);
+		if (phys_addr + *size <= md_end)
+			return 1;
+
+		md = efi_memory_descriptor(md_end);
+		if (!md || (md->attribute & attr) != attr) {
+			*size = md_end - phys_addr;
+			return 1;
+		}
+	} while (md);
+	return 0;
+}
+
+/*
+ * For /dev/mem, we only allow read & write system calls to access
+ * write-back memory, because read & write don't allow the user to
+ * control access size.
+ */
 int
 valid_phys_addr_range (unsigned long phys_addr, unsigned long *size)
 {
-	void *efi_map_start, *efi_map_end, *p;
-	efi_memory_desc_t *md;
-	u64 efi_desc_size;
+	return efi_mem_attribute_range(phys_addr, size, EFI_MEMORY_WB);
+}
 
-	efi_map_start = __va(ia64_boot_param->efi_memmap);
-	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
-	efi_desc_size = ia64_boot_param->efi_memdesc_size;
+/*
+ * We allow mmap of anything in the EFI memory map that supports
+ * either write-back or uncacheable access.  For uncacheable regions,
+ * the supported access sizes are system-dependent, and the user is
+ * responsible for using the correct size.
+ *
+ * Note that this doesn't currently allow access to hot-added memory,
+ * because that doesn't appear in the boot-time EFI memory map.
+ */
+int
+valid_mmap_phys_addr_range (unsigned long phys_addr, unsigned long *size)
+{
+	if (efi_mem_attribute_range(phys_addr, size, EFI_MEMORY_WB))
+		return 1;
 
-	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
-		md = p;
+	if (efi_mem_attribute_range(phys_addr, size, EFI_MEMORY_UC))
+		return 1;
 
-		if (phys_addr - md->phys_addr < (md->num_pages << EFI_PAGE_SHIFT)) {
-			if (!(md->attribute & EFI_MEMORY_WB))
-				return 0;
+	/*
+	 * Some firmware doesn't report MMIO regions in the EFI memory map.
+	 * The Intel BigSur (a.k.a. HP i2000) has this problem.  In this
+	 * case, we can't use the EFI memory map to validate mmap requests.
+	 */
+	if (!efi_memmap_has_mmio())
+		return 1;
 
-			if (*size > md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - phys_addr)
-				*size = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - phys_addr;
-			return 1;
-		}
-	}
 	return 0;
 }
 
@@ -707,32 +795,6 @@ efi_uart_console_only(void)
 	return 0;
 }
 
-#define efi_md_size(md)	(md->num_pages << EFI_PAGE_SHIFT)
-
-static inline u64
-kmd_end(kern_memdesc_t *kmd)
-{
-	return (kmd->start + (kmd->num_pages << EFI_PAGE_SHIFT));
-}
-
-static inline u64
-efi_md_end(efi_memory_desc_t *md)
-{
-	return (md->phys_addr + efi_md_size(md));
-}
-
-static inline int
-efi_wb(efi_memory_desc_t *md)
-{
-	return (md->attribute & EFI_MEMORY_WB);
-}
-
-static inline int
-efi_uc(efi_memory_desc_t *md)
-{
-	return (md->attribute & EFI_MEMORY_UC);
-}
-
 /*
  * Look for the first granule aligned memory descriptor memory
  * that is big enough to hold EFI memory map. Make sure this
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 0741b066b98..7a6ffd61378 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1600,5 +1600,6 @@ sys_call_table:
 	data8 sys_inotify_init
 	data8 sys_inotify_add_watch
 	data8 sys_inotify_rm_watch
+	data8 sys_migrate_pages			// 1280
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index bfe65b2e862..fbc7ea35dd5 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -1060,7 +1060,7 @@ SET_REG(b5);
 	 * the clobber lists for spin_lock() in include/asm-ia64/spinlock.h.
 	 */
 
-#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
+#if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
 
 GLOBAL_ENTRY(ia64_spinlock_contention_pre3_4)
 	.prologue
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 5db9d3bcbbc..e72de580ebb 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -103,7 +103,7 @@ EXPORT_SYMBOL(unw_init_running);
 
 #ifdef ASM_SUPPORTED
 # ifdef CONFIG_SMP
-#  if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
+#  if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
 /*
  * This is not a normal routine and we don't want a function descriptor for it, so we use
  * a fake declaration here.
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 4b19d041063..8d88eeea02d 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1422,14 +1422,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
 	lock_kernel();
 	ret = -EPERM;
 	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED)
-			goto out;
-		ret = security_ptrace(current->parent, current);
-		if (ret)
-			goto out;
-		current->ptrace |= PT_PTRACED;
-		ret = 0;
+		ret = ptrace_traceme();
 		goto out;
 	}
 
diff --git a/arch/ia64/oprofile/backtrace.c b/arch/ia64/oprofile/backtrace.c
index b7dabbfb0d6..adb01566bd5 100644
--- a/arch/ia64/oprofile/backtrace.c
+++ b/arch/ia64/oprofile/backtrace.c
@@ -32,7 +32,7 @@ typedef struct
 	u64 *prev_pfs_loc;	/* state for WAR for old spinlock ool code */
 } ia64_backtrace_t;
 
-#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
+#if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
 /*
  * Returns non-zero if the PC is in the spinlock contention out-of-line code
  * with non-standard calling sequence (on older compilers).
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index cc4b571e5db..3bf55d92933 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -50,6 +50,10 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
  * Powermanagement idle function, if any..
  */
 void (*pm_idle)(void) = NULL;
+EXPORT_SYMBOL(pm_idle);
+
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
 
 void disable_hlt(void)
 {
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 078d2a0e71c..9b75caaf5ce 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -762,28 +762,16 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 	int ret;
 
 	lock_kernel();
-	ret = -EPERM;
 	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED)
-			goto out;
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
-		ret = 0;
+		ret = ptrace_traceme();
 		goto out;
 	}
-	ret = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
-		goto out;
 
-	ret = -EPERM;
-	if (pid == 1)		/* you may not mess with init */
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
 		goto out;
+	}
 
 	if (request == PTRACE_ATTACH) {
 		ret = ptrace_attach(child);
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 1dd5d18b220..96b91982805 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -10,10 +10,6 @@ config MMU
 	bool
 	default y
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index b96498120fe..e2a6e864896 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -17,10 +17,6 @@ config FPU
 	bool
 	default n
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 9a9b0497213..7e55457a491 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -57,30 +57,16 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
 	       (unsigned long) data);
 #endif
 	lock_kernel();
-	ret = -EPERM;
 	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED)
-			goto out;
-		if ((ret = security_ptrace(current->parent, current)))
-			goto out;
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
-		ret = 0;
+		ret = ptrace_traceme();
 		goto out;
 	}
-	ret = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
-		goto out;
 
-	ret = -EPERM;
-	if (pid == 1)		/* you may not mess with init */
-		goto out_tsk;
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
+		goto out;
+	}
 
 	if (request == PTRACE_ATTACH) {
 		ret = ptrace_attach(child);
diff --git a/arch/mips/sgi-ip27/ip27-berr.c b/arch/mips/sgi-ip27/ip27-berr.c
index 07631a97670..ce907eda221 100644
--- a/arch/mips/sgi-ip27/ip27-berr.c
+++ b/arch/mips/sgi-ip27/ip27-berr.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/signal.h>	/* for SIGBUS */
+#include <linux/sched.h>	/* schow_regs(), force_sig() */
 
 #include <asm/module.h>
 #include <asm/sn/addrs.h>
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 874a283edb9..e77a06e9621 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -19,9 +19,6 @@ config MMU
 config STACK_GROWSUP
 	def_bool y
 
-config UID16
-	bool
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index db93dbc0e21..331483ace0d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -26,9 +26,6 @@ config MMU
 	bool
 	default y
 
-config UID16
-	bool
-
 config GENERIC_HARDIRQS
 	bool
 	default y
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 61762640b87..826ee3d056d 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -45,33 +45,19 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
 		       unsigned long data)
 {
 	struct task_struct *child;
-	int ret = -EPERM;
+	int ret;
 
 	lock_kernel();
 	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED)
-			goto out;
-		ret = security_ptrace(current->parent, current);
-		if (ret)
-			goto out;
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
-		ret = 0;
+		ret = ptrace_traceme();
 		goto out;
 	}
-	ret = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
-		goto out;
 
-	ret = -EPERM;
-	if (pid == 1)		/* you may not mess with init */
-		goto out_tsk;
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
+		goto out;
+	}
 
 	if (request == PTRACE_ATTACH) {
 		ret = ptrace_attach(child);
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index cc3f64c084c..e396f4591d5 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -8,9 +8,6 @@ config MMU
 	bool
 	default y
 
-config UID16
-	bool
-
 config GENERIC_HARDIRQS
 	bool
 	default y
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 8ecda6d66de..cc02232aa96 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -712,35 +712,18 @@ sys_ptrace(long request, long pid, long addr, long data)
 	int ret;
 
 	lock_kernel();
-
 	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		ret = -EPERM;
-		if (current->ptrace & PT_PTRACED)
-			goto out;
-		ret = security_ptrace(current->parent, current);
-		if (ret)
-			goto out;
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
-		goto out;
+		 ret = ptrace_traceme();
+		 goto out;
 	}
 
-	ret = -EPERM;
-	if (pid == 1)		/* you may not mess with init */
-		goto out;
-
-	ret = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
 		goto out;
+	}
 
 	ret = do_ptrace(child, request, addr, data);
-
 	put_task_struct(child);
 out:
 	unlock_kernel();
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 64f5ae0ff96..8cf6d437a63 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -14,10 +14,6 @@ config SUPERH
 	  gaming console.  The SuperH port has a home page at
 	  <http://www.linux-sh.org/>.
 
-config UID16
-	bool
-	default y
-
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c
index 870fe5327e0..1195af37ee5 100644
--- a/arch/sh64/kernel/time.c
+++ b/arch/sh64/kernel/time.c
@@ -417,7 +417,7 @@ static __init unsigned int get_cpu_hz(void)
 	/*
 	** Regardless the toolchain, force the compiler to use the
 	** arbitrary register r3 as a clock tick counter.
-	** NOTE: r3 must be in accordance with rtc_interrupt()
+	** NOTE: r3 must be in accordance with sh64_rtc_interrupt()
 	*/
 	register unsigned long long  __rtc_irq_flag __asm__ ("r3");
 
@@ -482,7 +482,8 @@ static __init unsigned int get_cpu_hz(void)
 #endif
 }
 
-static irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sh64_rtc_interrupt(int irq, void *dev_id,
+				      struct pt_regs *regs)
 {
 	ctrl_outb(0, RCR1);	/* Disable Carry Interrupts */
 	regs->regs[3] = 1;	/* Using r3 */
@@ -491,7 +492,7 @@ static irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 }
 
 static struct irqaction irq0  = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL};
-static struct irqaction irq1  = { rtc_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "rtc", NULL, NULL};
+static struct irqaction irq1  = { sh64_rtc_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "rtc", NULL, NULL};
 
 void __init time_init(void)
 {
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 56c34e7fd4e..f944b58cdfe 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -9,10 +9,6 @@ config MMU
 	bool
 	default y
 
-config UID16
-	bool
-	default y
-
 config HIGHMEM
 	bool
 	default y
diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c
index 475c4c13462..fc470c0e9dc 100644
--- a/arch/sparc/kernel/ptrace.c
+++ b/arch/sparc/kernel/ptrace.c
@@ -286,40 +286,17 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
 			       s, (int) request, (int) pid, addr, data, addr2);
 	}
 #endif
-	if (request == PTRACE_TRACEME) {
-		int my_ret;
-
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED) {
-			pt_error_return(regs, EPERM);
-			goto out;
-		}
-		my_ret = security_ptrace(current->parent, current);
-		if (my_ret) {
-			pt_error_return(regs, -my_ret);
-			goto out;
-		}
 
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
+	if (request == PTRACE_TRACEME) {
+		ret = ptrace_traceme();
 		pt_succ_return(regs, 0);
 		goto out;
 	}
-#ifndef ALLOW_INIT_TRACING
-	if (pid == 1) {
-		/* Can't dork with init. */
-		pt_error_return(regs, EPERM);
-		goto out;
-	}
-#endif
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
 
-	if (!child) {
-		pt_error_return(regs, ESRCH);
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
+		pt_error_return(regs, -ret);
 		goto out;
 	}
 
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index c4b7ad70cd7..b775ceb4cf9 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -309,11 +309,6 @@ config COMPAT
 	depends on SPARC32_COMPAT
 	default y
 
-config UID16
-	bool
-	depends on SPARC32_COMPAT
-	default y
-
 config BINFMT_ELF32
 	tristate "Kernel support for 32-bit ELF binaries"
 	depends on SPARC32_COMPAT
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 774ecbb8a03..84d3df2264c 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -198,39 +198,15 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
 	}
 #endif
 	if (request == PTRACE_TRACEME) {
-		int ret;
-
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED) {
-			pt_error_return(regs, EPERM);
-			goto out;
-		}
-		ret = security_ptrace(current->parent, current);
-		if (ret) {
-			pt_error_return(regs, -ret);
-			goto out;
-		}
-
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
+		ret = ptrace_traceme();
 		pt_succ_return(regs, 0);
 		goto out;
 	}
-#ifndef ALLOW_INIT_TRACING
-	if (pid == 1) {
-		/* Can't dork with init. */
-		pt_error_return(regs, EPERM);
-		goto out;
-	}
-#endif
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
 
-	if (!child) {
-		pt_error_return(regs, ESRCH);
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child)) {
+		ret = PTR_ERR(child);
+		pt_error_return(regs, -ret);
 		goto out;
 	}
 
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 1eb21de9d1b..b4ff2e57602 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -22,10 +22,6 @@ config SBUS
 config PCI
 	bool
 
-config UID16
-	bool
-	default y
-
 config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
@@ -83,7 +79,7 @@ config KERNEL_HALF_GIGS
         of physical memory.
 
 config MODE_SKAS
-	bool "Separate Kernel Address Space support"
+	bool "Separate Kernel Address Space support" if MODE_TT
 	default y
 	help
 	This option controls whether skas (separate kernel address space)
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 73f9652b2ee..3a93c6f772f 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -117,6 +117,7 @@ static int ubd_open(struct inode * inode, struct file * filp);
 static int ubd_release(struct inode * inode, struct file * file);
 static int ubd_ioctl(struct inode * inode, struct file * file,
 		     unsigned int cmd, unsigned long arg);
+static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 #define MAX_DEV (8)
 
@@ -125,6 +126,7 @@ static struct block_device_operations ubd_blops = {
         .open		= ubd_open,
         .release	= ubd_release,
         .ioctl		= ubd_ioctl,
+	.getgeo		= ubd_getgeo,
 };
 
 /* Protected by the queue_lock */
@@ -1058,6 +1060,16 @@ static void do_ubd_request(request_queue_t *q)
 	}
 }
 
+static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct ubd *dev = bdev->bd_disk->private_data;
+
+	geo->heads = 128;
+	geo->sectors = 32;
+	geo->cylinders = dev->size / (128 * 32 * 512);
+	return 0;
+}
+
 static int ubd_ioctl(struct inode * inode, struct file * file,
 		     unsigned int cmd, unsigned long arg)
 {
@@ -1070,16 +1082,7 @@ static int ubd_ioctl(struct inode * inode, struct file * file,
 	};
 
 	switch (cmd) {
-	        struct hd_geometry g;
 		struct cdrom_volctrl volume;
-	case HDIO_GETGEO:
-		if(!loc) return(-EINVAL);
-		g.heads = 128;
-		g.sectors = 32;
-		g.cylinders = dev->size / (128 * 32 * 512);
-		g.start = get_start_sect(inode->i_bdev);
-		return(copy_to_user(loc, &g, sizeof(g)) ? -EFAULT : 0);
-
 	case HDIO_GET_IDENTITY:
 		ubd_id.cyls = dev->size / (128 * 32 * 512);
 		if(copy_to_user((char __user *) arg, (char *) &ubd_id,
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index e5fec557019..8f4e46d677a 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
@@ -10,6 +10,19 @@
 #include "sysdep/ptrace.h"
 #include "sysdep/faultinfo.h"
 
+typedef void (*kern_hndl)(int, union uml_pt_regs *);
+
+struct kern_handlers {
+	kern_hndl relay_signal;
+	kern_hndl winch;
+	kern_hndl bus_handler;
+	kern_hndl page_fault;
+	kern_hndl sigio_handler;
+	kern_hndl timer_handler;
+};
+
+extern struct kern_handlers handlinfo_kern;
+
 extern int ncpus;
 extern char *linux_prog;
 extern char *gdb_init;
@@ -51,8 +64,6 @@ extern void timer_handler(int sig, union uml_pt_regs *regs);
 extern int set_signals(int enable);
 extern void force_sigbus(void);
 extern int pid_to_processor_id(int pid);
-extern void block_signals(void);
-extern void unblock_signals(void);
 extern void deliver_signals(void *t);
 extern int next_syscall_index(int max);
 extern int next_trap_index(int max);
@@ -111,6 +122,8 @@ extern void arch_switch(void);
 extern void free_irq(unsigned int, void *);
 extern int um_in_interrupt(void);
 extern int cpu(void);
+extern void segv_handler(int sig, union uml_pt_regs *regs);
+extern void sigio_handler(int sig, union uml_pt_regs *regs);
 
 #endif
 
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index c279ee6d89e..dd72d66cf0e 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -9,6 +9,8 @@
 #include "uml-config.h"
 #include "asm/types.h"
 #include "../os/include/file.h"
+#include "sysdep/ptrace.h"
+#include "kern_util.h"
 
 #define OS_TYPE_FILE 1 
 #define OS_TYPE_DIR 2 
@@ -219,4 +221,18 @@ extern int umid_file_name(char *name, char *buf, int len);
 extern int set_umid(char *name);
 extern char *get_umid(void);
 
+/* signal.c */
+extern void set_sigstack(void *sig_stack, int size);
+extern void remove_sigstack(void);
+extern void set_handler(int sig, void (*handler)(int), int flags, ...);
+extern int change_sig(int signal, int on);
+extern void block_signals(void);
+extern void unblock_signals(void);
+extern int get_signals(void);
+extern int set_signals(int enable);
+
+/* trap.c */
+extern void os_fill_handlinfo(struct kern_handlers h);
+extern void do_longjmp(void *p, int val);
+
 #endif
diff --git a/arch/um/include/signal_user.h b/arch/um/include/signal_user.h
deleted file mode 100644
index b075e543d86..00000000000
--- a/arch/um/include/signal_user.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* 
- * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __SIGNAL_USER_H__
-#define __SIGNAL_USER_H__
-
-extern int signal_stack_size;
-
-extern int change_sig(int signal, int on);
-extern void set_sigstack(void *stack, int size);
-extern void set_handler(int sig, void (*handler)(int), int flags, ...);
-extern int set_signals(int enable);
-extern int get_signals(void);
-
-#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h
index b9984003e60..c1dbd77b073 100644
--- a/arch/um/include/user_util.h
+++ b/arch/um/include/user_util.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
@@ -23,12 +23,7 @@ struct cpu_task {
 
 extern struct cpu_task cpu_tasks[];
 
-struct signal_info {
-	void (*handler)(int, union uml_pt_regs *);
-	int is_irq;
-};
-
-extern struct signal_info sig_info[];
+extern void (*sig_info[])(int, union uml_pt_regs *);
 
 extern unsigned long low_physmem;
 extern unsigned long high_physmem;
@@ -64,7 +59,6 @@ extern void setup_machinename(char *machine_out);
 extern void setup_hostinfo(void);
 extern void do_exec(int old_pid, int new_pid);
 extern void tracer_panic(char *msg, ...);
-extern void do_longjmp(void *p, int val);
 extern int detach(int pid, int sig);
 extern int attach(int pid);
 extern void kill_child_dead(int pid);
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 6f7700593a6..193cc2b7448 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -9,8 +9,8 @@ clean-files :=
 obj-y = config.o exec_kern.o exitcode.o \
 	init_task.o irq.o irq_user.o ksyms.o mem.o physmem.o \
 	process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \
-	signal_kern.o signal_user.o smp.o syscall_kern.o sysrq.o time.o \
-	time_kern.o tlb.o trap_kern.o trap_user.o uaccess.o um_arch.o umid.o \
+	signal_kern.o smp.o syscall_kern.o sysrq.o time.o \
+	time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o \
 	user_util.o
 
 obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o
diff --git a/arch/um/kernel/irq_user.c b/arch/um/kernel/irq_user.c
index 50a2aa35cda..0e32f5f4a88 100644
--- a/arch/um/kernel/irq_user.c
+++ b/arch/um/kernel/irq_user.c
@@ -15,7 +15,6 @@
 #include "kern_util.h"
 #include "user.h"
 #include "process.h"
-#include "signal_user.h"
 #include "sigio.h"
 #include "irq_user.h"
 #include "os.h"
diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index 651abf255bc..d2d3f256778 100644
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -36,7 +36,6 @@
 #include "kern_util.h"
 #include "kern.h"
 #include "signal_kern.h"
-#include "signal_user.h"
 #include "init.h"
 #include "irq_user.h"
 #include "mem_user.h"
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index a637e885c58..6f1a3a28811 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -12,6 +12,8 @@
 #include "mode.h"
 #include "choose-mode.h"
 
+void (*pm_power_off)(void);
+
 #ifdef CONFIG_SMP
 static void kill_idlers(int me)
 {
diff --git a/arch/um/kernel/signal_kern.c b/arch/um/kernel/signal_kern.c
index 03618bd13d5..7b0e0e81c16 100644
--- a/arch/um/kernel/signal_kern.c
+++ b/arch/um/kernel/signal_kern.c
@@ -22,7 +22,6 @@
 #include "asm/ucontext.h"
 #include "kern_util.h"
 #include "signal_kern.h"
-#include "signal_user.h"
 #include "kern.h"
 #include "frame_kern.h"
 #include "sigcontext.h"
diff --git a/arch/um/kernel/signal_user.c b/arch/um/kernel/signal_user.c
deleted file mode 100644
index 62f457835fb..00000000000
--- a/arch/um/kernel/signal_user.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* 
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <string.h>
-#include <sys/mman.h>
-#include "user_util.h"
-#include "kern_util.h"
-#include "user.h"
-#include "signal_user.h"
-#include "signal_kern.h"
-#include "sysdep/sigcontext.h"
-#include "sigcontext.h"
-
-void set_sigstack(void *sig_stack, int size)
-{
-	stack_t stack = ((stack_t) { .ss_flags	= 0,
-				     .ss_sp	= (__ptr_t) sig_stack,
-				     .ss_size 	= size - sizeof(void *) });
-
-	if(sigaltstack(&stack, NULL) != 0)
-		panic("enabling signal stack failed, errno = %d\n", errno);
-}
-
-void set_handler(int sig, void (*handler)(int), int flags, ...)
-{
-	struct sigaction action;
-	va_list ap;
-	int mask;
-
-	va_start(ap, flags);
-	action.sa_handler = handler;
-	sigemptyset(&action.sa_mask);
-	while((mask = va_arg(ap, int)) != -1){
-		sigaddset(&action.sa_mask, mask);
-	}
-	va_end(ap);
-	action.sa_flags = flags;
-	action.sa_restorer = NULL;
-	if(sigaction(sig, &action, NULL) < 0)
-		panic("sigaction failed");
-}
-
-int change_sig(int signal, int on)
-{
-	sigset_t sigset, old;
-
-	sigemptyset(&sigset);
-	sigaddset(&sigset, signal);
-	sigprocmask(on ? SIG_UNBLOCK : SIG_BLOCK, &sigset, &old);
-	return(!sigismember(&old, signal));
-}
-
-/* Both here and in set/get_signal we don't touch SIGPROF, because we must not
- * disable profiling; it's safe because the profiling code does not interact
- * with the kernel code at all.*/
-
-static void change_signals(int type)
-{
-	sigset_t mask;
-
-	sigemptyset(&mask);
-	sigaddset(&mask, SIGVTALRM);
-	sigaddset(&mask, SIGALRM);
-	sigaddset(&mask, SIGIO);
-	if(sigprocmask(type, &mask, NULL) < 0)
-		panic("Failed to change signal mask - errno = %d", errno);
-}
-
-void block_signals(void)
-{
-	change_signals(SIG_BLOCK);
-}
-
-void unblock_signals(void)
-{
-	change_signals(SIG_UNBLOCK);
-}
-
-/* These are the asynchronous signals.  SIGVTALRM and SIGARLM are handled
- * together under SIGVTALRM_BIT.  SIGPROF is excluded because we want to
- * be able to profile all of UML, not just the non-critical sections.  If
- * profiling is not thread-safe, then that is not my problem.  We can disable
- * profiling when SMP is enabled in that case.
- */
-#define SIGIO_BIT 0
-#define SIGVTALRM_BIT 1
-
-static int enable_mask(sigset_t *mask)
-{
-	int sigs;
-
-	sigs = sigismember(mask, SIGIO) ? 0 : 1 << SIGIO_BIT;
-	sigs |= sigismember(mask, SIGVTALRM) ? 0 : 1 << SIGVTALRM_BIT;
-	sigs |= sigismember(mask, SIGALRM) ? 0 : 1 << SIGVTALRM_BIT;
-	return(sigs);
-}
-
-int get_signals(void)
-{
-	sigset_t mask;
-	
-	if(sigprocmask(SIG_SETMASK, NULL, &mask) < 0)
-		panic("Failed to get signal mask");
-	return(enable_mask(&mask));
-}
-
-int set_signals(int enable)
-{
-	sigset_t mask;
-	int ret;
-
-	sigemptyset(&mask);
-	if(enable & (1 << SIGIO_BIT)) 
-		sigaddset(&mask, SIGIO);
-	if(enable & (1 << SIGVTALRM_BIT)){
-		sigaddset(&mask, SIGVTALRM);
-		sigaddset(&mask, SIGALRM);
-	}
-
-	/* This is safe - sigprocmask is guaranteed to copy locally the
-	 * value of new_set, do his work and then, at the end, write to
-	 * old_set.
-	 */
-	if(sigprocmask(SIG_UNBLOCK, &mask, &mask) < 0)
-		panic("Failed to enable signals");
-	ret = enable_mask(&mask);
-	sigemptyset(&mask);
-	if((enable & (1 << SIGIO_BIT)) == 0) 
-		sigaddset(&mask, SIGIO);
-	if((enable & (1 << SIGVTALRM_BIT)) == 0){
-		sigaddset(&mask, SIGVTALRM);
-		sigaddset(&mask, SIGALRM);
-	}
-	if(sigprocmask(SIG_BLOCK, &mask, NULL) < 0)
-		panic("Failed to block signals");
-
-	return(ret);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile
index 8de471b59c1..7a9fc16d71d 100644
--- a/arch/um/kernel/skas/Makefile
+++ b/arch/um/kernel/skas/Makefile
@@ -4,7 +4,7 @@
 #
 
 obj-y := clone.o exec_kern.o mem.o mem_user.o mmu.o process.o process_kern.o \
-	syscall.o tlb.o trap_user.o uaccess.o
+	syscall.o tlb.o uaccess.o
 
 USER_OBJS := process.o clone.o
 
diff --git a/arch/um/kernel/skas/include/skas.h b/arch/um/kernel/skas/include/skas.h
index daa2f85b684..01d489de398 100644
--- a/arch/um/kernel/skas/include/skas.h
+++ b/arch/um/kernel/skas/include/skas.h
@@ -22,7 +22,6 @@ extern int start_idle_thread(void *stack, void *switch_buf_ptr,
 extern int user_thread(unsigned long stack, int flags);
 extern void userspace(union uml_pt_regs *regs);
 extern void new_thread_proc(void *stack, void (*handler)(int sig));
-extern void remove_sigstack(void);
 extern void new_thread_handler(int sig);
 extern void handle_syscall(union uml_pt_regs *regs);
 extern int map(struct mm_id * mm_idp, unsigned long virt,
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 599d679bd4f..9264d4021df 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -31,7 +31,6 @@
 #include "proc_mm.h"
 #include "skas_ptrace.h"
 #include "chan_user.h"
-#include "signal_user.h"
 #include "registers.h"
 #include "mem.h"
 #include "uml-config.h"
@@ -514,16 +513,6 @@ int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr)
 	siglongjmp(**switch_buf, 1);
 }
 
-void remove_sigstack(void)
-{
-	stack_t stack = ((stack_t) { .ss_flags	= SS_DISABLE,
-				     .ss_sp	= NULL,
-				     .ss_size	= 0 });
-
-	if(sigaltstack(&stack, NULL) != 0)
-		panic("disabling signal stack failed, errno = %d\n", errno);
-}
-
 void initial_thread_cb_skas(void (*proc)(void *), void *arg)
 {
 	sigjmp_buf here;
diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c
index 9c990253966..09790ccb161 100644
--- a/arch/um/kernel/skas/process_kern.c
+++ b/arch/um/kernel/skas/process_kern.c
@@ -14,7 +14,6 @@
 #include "asm/atomic.h"
 #include "kern_util.h"
 #include "time_user.h"
-#include "signal_user.h"
 #include "skas.h"
 #include "os.h"
 #include "user_util.h"
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index c40b611e3d9..11f518a7e15 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -14,9 +14,9 @@
 #include "kern_util.h"
 #include "user.h"
 #include "process.h"
-#include "signal_user.h"
 #include "time_user.h"
 #include "kern_constants.h"
+#include "os.h"
 
 /* XXX This really needs to be declared and initialized in a kernel file since
  * it's in <linux/time.h>
diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c
index 0d4c10a7360..d56046c2aba 100644
--- a/arch/um/kernel/trap_kern.c
+++ b/arch/um/kernel/trap_kern.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
@@ -26,9 +26,13 @@
 #include "mconsole_kern.h"
 #include "mem.h"
 #include "mem_kern.h"
+#include "sysdep/sigcontext.h"
+#include "sysdep/ptrace.h"
+#include "os.h"
 #ifdef CONFIG_MODE_SKAS
 #include "skas.h"
 #endif
+#include "os.h"
 
 /* Note this is constrained to return 0, -EFAULT, -EACCESS, -ENOMEM by segv(). */
 int handle_page_fault(unsigned long address, unsigned long ip, 
@@ -125,6 +129,25 @@ out_of_memory:
 	goto out;
 }
 
+void segv_handler(int sig, union uml_pt_regs *regs)
+{
+	struct faultinfo * fi = UPT_FAULTINFO(regs);
+
+	if(UPT_IS_USER(regs) && !SEGV_IS_FIXABLE(fi)){
+		bad_segv(*fi, UPT_IP(regs));
+		return;
+	}
+	segv(*fi, UPT_IP(regs), UPT_IS_USER(regs), regs);
+}
+
+struct kern_handlers handlinfo_kern = {
+	.relay_signal = relay_signal,
+	.winch = winch,
+	.bus_handler = relay_signal,
+	.page_fault = segv_handler,
+	.sigio_handler = sigio_handler,
+	.timer_handler = timer_handler
+};
 /*
  * We give a *copy* of the faultinfo in the regs to segv.
  * This must be done, since nesting SEGVs could overwrite
diff --git a/arch/um/kernel/trap_user.c b/arch/um/kernel/trap_user.c
deleted file mode 100644
index e9ccd6b8d3c..00000000000
--- a/arch/um/kernel/trap_user.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/* 
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <stdlib.h>
-#include <errno.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <sys/time.h>
-#include <sys/wait.h>
-#include <asm/page.h>
-#include <asm/unistd.h>
-#include <asm/ptrace.h>
-#include "init.h"
-#include "sysdep/ptrace.h"
-#include "sigcontext.h"
-#include "sysdep/sigcontext.h"
-#include "irq_user.h"
-#include "signal_user.h"
-#include "time_user.h"
-#include "task.h"
-#include "mode.h"
-#include "choose-mode.h"
-#include "kern_util.h"
-#include "user_util.h"
-#include "os.h"
-
-void kill_child_dead(int pid)
-{
-	kill(pid, SIGKILL);
-	kill(pid, SIGCONT);
-	do {
-		int n;
-		CATCH_EINTR(n = waitpid(pid, NULL, 0));
-		if (n > 0)
-			kill(pid, SIGCONT);
-		else
-			break;
-	} while(1);
-}
-
-void segv_handler(int sig, union uml_pt_regs *regs)
-{
-        struct faultinfo * fi = UPT_FAULTINFO(regs);
-
-        if(UPT_IS_USER(regs) && !SEGV_IS_FIXABLE(fi)){
-                bad_segv(*fi, UPT_IP(regs));
-		return;
-	}
-        segv(*fi, UPT_IP(regs), UPT_IS_USER(regs), regs);
-}
-
-void usr2_handler(int sig, union uml_pt_regs *regs)
-{
-	CHOOSE_MODE(syscall_handler_tt(sig, regs), (void) 0);
-}
-
-struct signal_info sig_info[] = {
-	[ SIGTRAP ] { .handler 		= relay_signal,
-		      .is_irq 		= 0 },
-	[ SIGFPE ] { .handler 		= relay_signal,
-		     .is_irq 		= 0 },
-	[ SIGILL ] { .handler 		= relay_signal,
-		     .is_irq 		= 0 },
-	[ SIGWINCH ] { .handler		= winch,
-		       .is_irq		= 1 },
-	[ SIGBUS ] { .handler 		= bus_handler,
-		     .is_irq 		= 0 },
-	[ SIGSEGV] { .handler 		= segv_handler,
-		     .is_irq 		= 0 },
-	[ SIGIO ] { .handler 		= sigio_handler,
-		    .is_irq 		= 1 },
-	[ SIGVTALRM ] { .handler 	= timer_handler,
-			.is_irq 	= 1 },
-        [ SIGALRM ] { .handler          = timer_handler,
-                      .is_irq           = 1 },
-	[ SIGUSR2 ] { .handler 		= usr2_handler,
-		      .is_irq 		= 0 },
-};
-
-void do_longjmp(void *b, int val)
-{
-	sigjmp_buf *buf = b;
-
-	siglongjmp(*buf, val);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/tt/exec_kern.c b/arch/um/kernel/tt/exec_kern.c
index 065b504a653..136e54c47d3 100644
--- a/arch/um/kernel/tt/exec_kern.c
+++ b/arch/um/kernel/tt/exec_kern.c
@@ -14,7 +14,6 @@
 #include "kern_util.h"
 #include "irq_user.h"
 #include "time_user.h"
-#include "signal_user.h"
 #include "mem_user.h"
 #include "os.h"
 #include "tlb.h"
diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c
index cfaa373a6e7..14d4622a5fb 100644
--- a/arch/um/kernel/tt/process_kern.c
+++ b/arch/um/kernel/tt/process_kern.c
@@ -13,7 +13,6 @@
 #include "asm/ptrace.h"
 #include "asm/tlbflush.h"
 #include "irq_user.h"
-#include "signal_user.h"
 #include "kern_util.h"
 #include "user_util.h"
 #include "os.h"
diff --git a/arch/um/kernel/tt/tracer.c b/arch/um/kernel/tt/tracer.c
index d11e7399d7a..71daae24e48 100644
--- a/arch/um/kernel/tt/tracer.c
+++ b/arch/um/kernel/tt/tracer.c
@@ -19,7 +19,6 @@
 #include "sigcontext.h"
 #include "sysdep/sigcontext.h"
 #include "os.h"
-#include "signal_user.h"
 #include "user_util.h"
 #include "mem_user.h"
 #include "process.h"
diff --git a/arch/um/kernel/tt/trap_user.c b/arch/um/kernel/tt/trap_user.c
index fc108615bea..a414c529fbc 100644
--- a/arch/um/kernel/tt/trap_user.c
+++ b/arch/um/kernel/tt/trap_user.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
@@ -8,18 +8,18 @@
 #include <signal.h>
 #include "sysdep/ptrace.h"
 #include "sysdep/sigcontext.h"
-#include "signal_user.h"
 #include "user_util.h"
 #include "kern_util.h"
 #include "task.h"
 #include "tt.h"
+#include "os.h"
 
 void sig_handler_common_tt(int sig, void *sc_ptr)
 {
 	struct sigcontext *sc = sc_ptr;
 	struct tt_regs save_regs, *r;
-	struct signal_info *info;
 	int save_errno = errno, is_user;
+	void (*handler)(int, union uml_pt_regs *);
 
 	/* This is done because to allow SIGSEGV to be delivered inside a SEGV
 	 * handler.  This can happen in copy_user, and if SEGV is disabled,
@@ -40,10 +40,14 @@ void sig_handler_common_tt(int sig, void *sc_ptr)
 	if(sig != SIGUSR2) 
 		r->syscall = -1;
 
-	info = &sig_info[sig];
-	if(!info->is_irq) unblock_signals();
+	handler = sig_info[sig];
+
+	/* unblock SIGALRM, SIGVTALRM, SIGIO if sig isn't IRQ signal */
+	if (sig != SIGIO && sig != SIGWINCH &&
+	    sig != SIGVTALRM && sig != SIGALRM)
+		unblock_signals();
 
-	(*info->handler)(sig, (union uml_pt_regs *) r);
+	handler(sig, (union uml_pt_regs *) r);
 
 	if(is_user){
 		interrupt_end();
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 26626b2b917..73747ac1977 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright (C) 2000, 2002 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
@@ -363,6 +363,11 @@ int linux_main(int argc, char **argv)
 	uml_start = CHOOSE_MODE_PROC(set_task_sizes_tt, set_task_sizes_skas, 0,
 				     &host_task_size, &task_size);
 
+	/*
+ 	 * Setting up handlers to 'sig_info' struct
+ 	 */
+	os_fill_handlinfo(handlinfo_kern);
+
 	brk_start = (unsigned long) sbrk(0);
 	CHOOSE_MODE_PROC(before_mem_tt, before_mem_skas, brk_start);
 	/* Increase physical memory size for exec-shield users
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 11e30b13e31..40c7d6b1df6 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -4,11 +4,13 @@
 #
 
 obj-y = aio.o elf_aux.o file.o helper.o main.o mem.o process.o signal.o \
-	start_up.o time.o tt.o tty.o uaccess.o umid.o user_syms.o drivers/ \
-	sys-$(SUBARCH)/
+	start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o user_syms.o \
+	drivers/ sys-$(SUBARCH)/
+
+obj-$(CONFIG_MODE_SKAS) += skas/
 
 USER_OBJS := aio.o elf_aux.o file.o helper.o main.o mem.o process.o signal.o \
-	start_up.o time.o tt.o tty.o uaccess.o umid.o
+	start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o
 
 elf_aux.o: $(ARCH_DIR)/kernel-offsets.h
 CFLAGS_elf_aux.o += -I$(objtree)/arch/um
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 23da27d2256..172c8474453 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -16,7 +16,6 @@
 #include "user_util.h"
 #include "kern_util.h"
 #include "mem_user.h"
-#include "signal_user.h"
 #include "time_user.h"
 #include "irq_user.h"
 #include "user.h"
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index d9c52387c4a..39815c6b5e4 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -15,7 +15,6 @@
 #include "os.h"
 #include "user.h"
 #include "user_util.h"
-#include "signal_user.h"
 #include "process.h"
 #include "irq_user.h"
 #include "kern_util.h"
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index c7bfd5ee392..c1f46a0fef1 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -4,9 +4,22 @@
  */
 
 #include <signal.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/mman.h>
+#include "user_util.h"
+#include "kern_util.h"
+#include "user.h"
+#include "signal_kern.h"
+#include "sysdep/sigcontext.h"
+#include "sysdep/signal.h"
+#include "sigcontext.h"
 #include "time_user.h"
 #include "mode.h"
-#include "sysdep/signal.h"
 
 void sig_handler(ARCH_SIGHDLR_PARAM)
 {
@@ -36,13 +49,138 @@ void alarm_handler(ARCH_SIGHDLR_PARAM)
 		switch_timers(1);
 }
 
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
+void set_sigstack(void *sig_stack, int size)
+{
+	stack_t stack = ((stack_t) { .ss_flags	= 0,
+				     .ss_sp	= (__ptr_t) sig_stack,
+				     .ss_size 	= size - sizeof(void *) });
+
+	if(sigaltstack(&stack, NULL) != 0)
+		panic("enabling signal stack failed, errno = %d\n", errno);
+}
+
+void remove_sigstack(void)
+{
+	stack_t stack = ((stack_t) { .ss_flags	= SS_DISABLE,
+				     .ss_sp	= NULL,
+				     .ss_size	= 0 });
+
+	if(sigaltstack(&stack, NULL) != 0)
+		panic("disabling signal stack failed, errno = %d\n", errno);
+}
+
+void set_handler(int sig, void (*handler)(int), int flags, ...)
+{
+	struct sigaction action;
+	va_list ap;
+	int mask;
+
+	va_start(ap, flags);
+	action.sa_handler = handler;
+	sigemptyset(&action.sa_mask);
+	while((mask = va_arg(ap, int)) != -1){
+		sigaddset(&action.sa_mask, mask);
+	}
+	va_end(ap);
+	action.sa_flags = flags;
+	action.sa_restorer = NULL;
+	if(sigaction(sig, &action, NULL) < 0)
+		panic("sigaction failed");
+}
+
+int change_sig(int signal, int on)
+{
+	sigset_t sigset, old;
+
+	sigemptyset(&sigset);
+	sigaddset(&sigset, signal);
+	sigprocmask(on ? SIG_UNBLOCK : SIG_BLOCK, &sigset, &old);
+	return(!sigismember(&old, signal));
+}
+
+/* Both here and in set/get_signal we don't touch SIGPROF, because we must not
+ * disable profiling; it's safe because the profiling code does not interact
+ * with the kernel code at all.*/
+
+static void change_signals(int type)
+{
+	sigset_t mask;
+
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGVTALRM);
+	sigaddset(&mask, SIGALRM);
+	sigaddset(&mask, SIGIO);
+	if(sigprocmask(type, &mask, NULL) < 0)
+		panic("Failed to change signal mask - errno = %d", errno);
+}
+
+void block_signals(void)
+{
+	change_signals(SIG_BLOCK);
+}
+
+void unblock_signals(void)
+{
+	change_signals(SIG_UNBLOCK);
+}
+
+/* These are the asynchronous signals.  SIGVTALRM and SIGARLM are handled
+ * together under SIGVTALRM_BIT.  SIGPROF is excluded because we want to
+ * be able to profile all of UML, not just the non-critical sections.  If
+ * profiling is not thread-safe, then that is not my problem.  We can disable
+ * profiling when SMP is enabled in that case.
  */
+#define SIGIO_BIT 0
+#define SIGVTALRM_BIT 1
+
+static int enable_mask(sigset_t *mask)
+{
+	int sigs;
+
+	sigs = sigismember(mask, SIGIO) ? 0 : 1 << SIGIO_BIT;
+	sigs |= sigismember(mask, SIGVTALRM) ? 0 : 1 << SIGVTALRM_BIT;
+	sigs |= sigismember(mask, SIGALRM) ? 0 : 1 << SIGVTALRM_BIT;
+	return(sigs);
+}
+
+int get_signals(void)
+{
+	sigset_t mask;
+
+	if(sigprocmask(SIG_SETMASK, NULL, &mask) < 0)
+		panic("Failed to get signal mask");
+	return(enable_mask(&mask));
+}
+
+int set_signals(int enable)
+{
+	sigset_t mask;
+	int ret;
+
+	sigemptyset(&mask);
+	if(enable & (1 << SIGIO_BIT))
+		sigaddset(&mask, SIGIO);
+	if(enable & (1 << SIGVTALRM_BIT)){
+		sigaddset(&mask, SIGVTALRM);
+		sigaddset(&mask, SIGALRM);
+	}
+
+	/* This is safe - sigprocmask is guaranteed to copy locally the
+	 * value of new_set, do his work and then, at the end, write to
+	 * old_set.
+	 */
+	if(sigprocmask(SIG_UNBLOCK, &mask, &mask) < 0)
+		panic("Failed to enable signals");
+	ret = enable_mask(&mask);
+	sigemptyset(&mask);
+	if((enable & (1 << SIGIO_BIT)) == 0)
+		sigaddset(&mask, SIGIO);
+	if((enable & (1 << SIGVTALRM_BIT)) == 0){
+		sigaddset(&mask, SIGVTALRM);
+		sigaddset(&mask, SIGALRM);
+	}
+	if(sigprocmask(SIG_BLOCK, &mask, NULL) < 0)
+		panic("Failed to block signals");
+
+	return(ret);
+}
diff --git a/arch/um/os-Linux/skas/Makefile b/arch/um/os-Linux/skas/Makefile
new file mode 100644
index 00000000000..eab5386d60a
--- /dev/null
+++ b/arch/um/os-Linux/skas/Makefile
@@ -0,0 +1,10 @@
+#
+# Copyright (C) 2002 - 2004 Jeff Dike (jdike@addtoit.com)
+# Licensed under the GPL
+#
+
+obj-y := trap.o
+
+USER_OBJS := trap.o
+
+include arch/um/scripts/Makefile.rules
diff --git a/arch/um/kernel/skas/trap_user.c b/arch/um/os-Linux/skas/trap.c
index 9950a6716fe..9ad5fbec459 100644
--- a/arch/um/kernel/skas/trap_user.c
+++ b/arch/um/os-Linux/skas/trap.c
@@ -1,11 +1,10 @@
-/* 
+/*
  * Copyright (C) 2002 - 2003 Jeff Dike (jdike@addtoit.com)
  * Licensed under the GPL
  */
 
 #include <signal.h>
 #include <errno.h>
-#include "signal_user.h"
 #include "user_util.h"
 #include "kern_util.h"
 #include "task.h"
@@ -14,12 +13,13 @@
 #include "ptrace_user.h"
 #include "sysdep/ptrace.h"
 #include "sysdep/ptrace_user.h"
+#include "os.h"
 
 void sig_handler_common_skas(int sig, void *sc_ptr)
 {
 	struct sigcontext *sc = sc_ptr;
 	struct skas_regs *r;
-	struct signal_info *info;
+	void (*handler)(int, union uml_pt_regs *);
 	int save_errno = errno;
 	int save_user;
 
@@ -34,17 +34,22 @@ void sig_handler_common_skas(int sig, void *sc_ptr)
 	r = &TASK_REGS(get_current())->skas;
 	save_user = r->is_user;
 	r->is_user = 0;
-        if ( sig == SIGFPE || sig == SIGSEGV ||
-             sig == SIGBUS || sig == SIGILL ||
-             sig == SIGTRAP ) {
-                GET_FAULTINFO_FROM_SC(r->faultinfo, sc);
-        }
+	if ( sig == SIGFPE || sig == SIGSEGV ||
+	     sig == SIGBUS || sig == SIGILL ||
+	     sig == SIGTRAP ) {
+		GET_FAULTINFO_FROM_SC(r->faultinfo, sc);
+	}
 
 	change_sig(SIGUSR1, 1);
-	info = &sig_info[sig];
-	if(!info->is_irq) unblock_signals();
 
-	(*info->handler)(sig, (union uml_pt_regs *) r);
+	handler = sig_info[sig];
+
+	/* unblock SIGALRM, SIGVTALRM, SIGIO if sig isn't IRQ signal */
+	if (sig != SIGIO && sig != SIGWINCH &&
+	    sig != SIGVTALRM && sig != SIGALRM)
+		unblock_signals();
+
+	handler(sig, (union uml_pt_regs *) r);
 
 	errno = save_errno;
 	r->is_user = save_user;
@@ -54,25 +59,15 @@ extern int ptrace_faultinfo;
 
 void user_signal(int sig, union uml_pt_regs *regs, int pid)
 {
-	struct signal_info *info;
-        int segv = ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) ||
-                    (sig == SIGILL) || (sig == SIGTRAP));
+	void (*handler)(int, union uml_pt_regs *);
+	int segv = ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) ||
+		    (sig == SIGILL) || (sig == SIGTRAP));
 
 	if (segv)
 		get_skas_faultinfo(pid, &regs->skas.faultinfo);
-	info = &sig_info[sig];
-	(*info->handler)(sig, regs);
+
+	handler = sig_info[sig];
+	handler(sig, (union uml_pt_regs *) regs);
 
 	unblock_signals();
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 29a9e3f4376..b47e5e71d1a 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -24,7 +24,6 @@
 #include "kern_util.h"
 #include "user.h"
 #include "signal_kern.h"
-#include "signal_user.h"
 #include "sysdep/ptrace.h"
 #include "sysdep/sigcontext.h"
 #include "irq_user.h"
diff --git a/arch/um/os-Linux/trap.c b/arch/um/os-Linux/trap.c
new file mode 100644
index 00000000000..321e1c8e227
--- /dev/null
+++ b/arch/um/os-Linux/trap.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <stdlib.h>
+#include <signal.h>
+#include <setjmp.h>
+#include "kern_util.h"
+#include "user_util.h"
+#include "os.h"
+#include "mode.h"
+
+void usr2_handler(int sig, union uml_pt_regs *regs)
+{
+	CHOOSE_MODE(syscall_handler_tt(sig, regs), (void) 0);
+}
+
+void (*sig_info[NSIG])(int, union uml_pt_regs *);
+
+void os_fill_handlinfo(struct kern_handlers h)
+{
+	sig_info[SIGTRAP] = h.relay_signal;
+	sig_info[SIGFPE] = h.relay_signal;
+	sig_info[SIGILL] = h.relay_signal;
+	sig_info[SIGWINCH] = h.winch;
+	sig_info[SIGBUS] = h.bus_handler;
+	sig_info[SIGSEGV] = h.page_fault;
+	sig_info[SIGIO] = h.sigio_handler;
+	sig_info[SIGVTALRM] = h.timer_handler;
+	sig_info[SIGALRM] = h.timer_handler;
+	sig_info[SIGUSR2] = usr2_handler;
+}
+
+void do_longjmp(void *b, int val)
+{
+	sigjmp_buf *buf = b;
+
+	siglongjmp(*buf, val);
+}
diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c
index a6db8877931..cb2648b79d0 100644
--- a/arch/um/os-Linux/tt.c
+++ b/arch/um/os-Linux/tt.c
@@ -23,7 +23,6 @@
 #include "kern_util.h"
 #include "user.h"
 #include "signal_kern.h"
-#include "signal_user.h"
 #include "sysdep/ptrace.h"
 #include "sysdep/sigcontext.h"
 #include "irq_user.h"
@@ -50,6 +49,20 @@ int protect_memory(unsigned long addr, unsigned long len, int r, int w, int x,
 	return(0);
 }
 
+void kill_child_dead(int pid)
+{
+	kill(pid, SIGKILL);
+	kill(pid, SIGCONT);
+	do {
+		int n;
+		CATCH_EINTR(n = waitpid(pid, NULL, 0));
+		if (n > 0)
+			kill(pid, SIGCONT);
+		else
+			break;
+	} while(1);
+}
+
 /*
  *-------------------------
  * only for tt mode (will be deleted in future...)
diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c
index 16bc19928b3..7cd1a82dc8c 100644
--- a/arch/um/sys-i386/signal.c
+++ b/arch/um/sys-i386/signal.c
@@ -10,7 +10,6 @@
 #include "asm/uaccess.h"
 #include "asm/unistd.h"
 #include "frame_kern.h"
-#include "signal_user.h"
 #include "sigcontext.h"
 #include "registers.h"
 #include "mode.h"
diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig
index 31086590323..04494638b96 100644
--- a/arch/v850/Kconfig
+++ b/arch/v850/Kconfig
@@ -10,9 +10,6 @@ mainmenu "uClinux/v850 (w/o MMU) Kernel Configuration"
 config MMU
        	bool
 	default n
-config UID16
-	bool
-	default n
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 6ece645e4db..4f3e925962c 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -542,11 +542,6 @@ config SYSVIPC_COMPAT
 	depends on COMPAT && SYSVIPC
 	default y
 
-config UID16
-	bool
-	depends on IA32_EMULATION
-	default y
-
 endmenu
 
 source "net/Kconfig"
diff --git a/arch/x86_64/boot/compressed/misc.c b/arch/x86_64/boot/compressed/misc.c
index 0e10fd84c7c..cf4b88c416d 100644
--- a/arch/x86_64/boot/compressed/misc.c
+++ b/arch/x86_64/boot/compressed/misc.c
@@ -9,7 +9,7 @@
  * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
  */
 
-#include "miscsetup.h"
+#include <linux/screen_info.h>
 #include <asm/io.h>
 #include <asm/page.h>
 
diff --git a/arch/x86_64/boot/compressed/miscsetup.h b/arch/x86_64/boot/compressed/miscsetup.h
deleted file mode 100644
index bb162053170..00000000000
--- a/arch/x86_64/boot/compressed/miscsetup.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#define NULL 0
-//typedef unsigned int size_t; 
-
-
-struct screen_info {
-	unsigned char  orig_x;			/* 0x00 */
-	unsigned char  orig_y;			/* 0x01 */
-	unsigned short dontuse1;		/* 0x02 -- EXT_MEM_K sits here */
-	unsigned short orig_video_page;		/* 0x04 */
-	unsigned char  orig_video_mode;		/* 0x06 */
-	unsigned char  orig_video_cols;		/* 0x07 */
-	unsigned short unused2;			/* 0x08 */
-	unsigned short orig_video_ega_bx;	/* 0x0a */
-	unsigned short unused3;			/* 0x0c */
-	unsigned char  orig_video_lines;	/* 0x0e */
-	unsigned char  orig_video_isVGA;	/* 0x0f */
-	unsigned short orig_video_points;	/* 0x10 */
-
-	/* VESA graphic mode -- linear frame buffer */
-	unsigned short lfb_width;		/* 0x12 */
-	unsigned short lfb_height;		/* 0x14 */
-	unsigned short lfb_depth;		/* 0x16 */
-	unsigned long  lfb_base;		/* 0x18 */
-	unsigned long  lfb_size;		/* 0x1c */
-	unsigned short dontuse2, dontuse3;	/* 0x20 -- CL_MAGIC and CL_OFFSET here */
-	unsigned short lfb_linelength;		/* 0x24 */
-	unsigned char  red_size;		/* 0x26 */
-	unsigned char  red_pos;			/* 0x27 */
-	unsigned char  green_size;		/* 0x28 */
-	unsigned char  green_pos;		/* 0x29 */
-	unsigned char  blue_size;		/* 0x2a */
-	unsigned char  blue_pos;		/* 0x2b */
-	unsigned char  rsvd_size;		/* 0x2c */
-	unsigned char  rsvd_pos;		/* 0x2d */
-	unsigned short vesapm_seg;		/* 0x2e */
-	unsigned short vesapm_off;		/* 0x30 */
-	unsigned short pages;			/* 0x32 */
-						/* 0x34 -- 0x3f reserved for future expansion */
-};
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index df0773c9bdb..1f0ff5adc80 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -643,6 +643,7 @@ ia32_sys_call_table:
 	.quad sys_inotify_init
 	.quad sys_inotify_add_watch
 	.quad sys_inotify_rm_watch
+	.quad sys_migrate_pages
 ia32_syscall_end:		
 	.rept IA32_NR_syscalls-(ia32_syscall_end-ia32_sys_call_table)/8
 		.quad ni_syscall
diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c
index 2a925e2af39..5f4cdfa5690 100644
--- a/arch/x86_64/ia32/ptrace32.c
+++ b/arch/x86_64/ia32/ptrace32.c
@@ -196,36 +196,6 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
 
 #undef R32
 
-static struct task_struct *find_target(int request, int pid, int *err)
-{ 
-	struct task_struct *child;
-
-	*err = -EPERM; 
-	if (pid == 1)
-		return NULL; 
-
-	*err = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (child) { 
-		*err = -EPERM;
-		if (child->pid == 1) 
-			goto out;
-		*err = ptrace_check_attach(child, request == PTRACE_KILL); 
-		if (*err < 0) 
-			goto out;
-		return child; 
-	} 
- out:
-	if (child)
-	put_task_struct(child);
-	return NULL; 
-	
-} 
-
 asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 {
 	struct task_struct *child;
@@ -254,9 +224,16 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 		break;
 	} 
 
-	child = find_target(request, pid, &ret);
-	if (!child)
-		return ret;
+	if (request == PTRACE_TRACEME)
+		return ptrace_traceme();
+
+	child = ptrace_get_task_struct(pid);
+	if (IS_ERR(child))
+		return PTR_ERR(child);
+
+	ret = ptrace_check_attach(child, request == PTRACE_KILL);
+	if (ret < 0)
+		goto out;
 
 	childregs = (struct pt_regs *)(child->thread.rsp0 - sizeof(struct pt_regs)); 
 
@@ -373,6 +350,7 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data)
 		break;
 	}
 
+ out:
 	put_task_struct(child);
 	return ret;
 }
diff --git a/arch/x86_64/kernel/init_task.c b/arch/x86_64/kernel/init_task.c
index e0ba5c1043f..ce31d904d60 100644
--- a/arch/x86_64/kernel/init_task.c
+++ b/arch/x86_64/kernel/init_task.c
@@ -44,6 +44,6 @@ EXPORT_SYMBOL(init_task);
  * section. Since TSS's are completely CPU-local, we want them
  * on exact cacheline boundaries, to eliminate cacheline ping-pong.
  */ 
-DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_maxaligned_in_smp = INIT_TSS;
+DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS;
 
 #define ALIGN_TO_4K __attribute__((section(".data.init_task")))
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 74102796e5c..43c9fa0f8d5 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -1075,8 +1075,6 @@ device_initcall(time_init_device);
  */
 #include <linux/rtc.h>
 
-extern irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-
 #define DEFAULT_RTC_INT_FREQ 	64
 #define RTC_NUM_INTS 		1