Merge branch 'for-linus' of git://github.com/richardweinberger/linux

* 'for-linus' of git://github.com/richardweinberger/linux: (90 commits)
  um: fix ubd cow size
  um: Fix kmalloc argument order in um/vdso/vma.c
  um: switch to use of drivers/Kconfig
  UserModeLinux-HOWTO.txt: fix a typo
  UserModeLinux-HOWTO.txt: remove ^H characters
  um: we need sys/user.h only on i386
  um: merge delay_{32,64}.c
  um: distribute exports to where exported stuff is defined
  um: kill system-um.h
  um: generic ftrace.h will do...
  um: segment.h is x86-only and needed only there
  um: asm/pda.h is not needed anymore
  um: hw_irq.h can go generic as well
  um: switch to generic-y
  um: clean Kconfig up a bit
  um: a couple of missing dependencies...
  um: kill useless argument of free_chan() and free_one_chan()
  um: unify ptrace_user.h
  um: unify KSTK_...
  um: fix gcov build breakage
  ...

55 files changed, 153 insertions, 885 deletions

diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
new file mode 100644
index 000000000000..451f4517b334
--- /dev/null
+++ b/arch/um/include/asm/Kbuild
@@ -0,0 +1,3 @@
+generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h
+generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h
+generic-y += ftrace.h
diff --git a/arch/um/include/asm/apic.h b/arch/um/include/asm/apic.h
deleted file mode 100644
index 876dee84ab11..000000000000
--- a/arch/um/include/asm/apic.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __UM_APIC_H
-#define __UM_APIC_H
-
-#endif
diff --git a/arch/um/include/asm/arch_hweight.h b/arch/um/include/asm/arch_hweight.h
deleted file mode 100644
index c656cf443f4a..000000000000
--- a/arch/um/include/asm/arch_hweight.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_UM_HWEIGHT_H
-#define _ASM_UM_HWEIGHT_H
-
-#include <asm-generic/bitops/arch_hweight.h>
-
-#endif
diff --git a/arch/um/include/asm/bug.h b/arch/um/include/asm/bug.h
deleted file mode 100644
index 9e33b864c359..000000000000
--- a/arch/um/include/asm/bug.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __UM_BUG_H
-#define __UM_BUG_H
-
-#include <asm-generic/bug.h>
-
-#endif
diff --git a/arch/um/include/asm/checksum.h b/arch/um/include/asm/checksum.h
deleted file mode 100644
index 5b501361e361..000000000000
--- a/arch/um/include/asm/checksum.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __UM_CHECKSUM_H
-#define __UM_CHECKSUM_H
-
-#include "sysdep/checksum.h"
-
-#endif
diff --git a/arch/um/include/asm/cputime.h b/arch/um/include/asm/cputime.h
deleted file mode 100644
index c84acbadfa2f..000000000000
--- a/arch/um/include/asm/cputime.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __UM_CPUTIME_H
-#define __UM_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* __UM_CPUTIME_H */
diff --git a/arch/um/include/asm/desc.h b/arch/um/include/asm/desc.h
deleted file mode 100644
index 4ec34a51b62c..000000000000
--- a/arch/um/include/asm/desc.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef __UM_DESC_H
-#define __UM_DESC_H
-
-/* Taken from asm-i386/desc.h, it's the only thing we need. The rest wouldn't
- * compile, and has never been used. */
-#define LDT_empty(info) (\
-	(info)->base_addr	== 0	&& \
-	(info)->limit		== 0	&& \
-	(info)->contents	== 0	&& \
-	(info)->read_exec_only	== 1	&& \
-	(info)->seg_32bit	== 0	&& \
-	(info)->limit_in_pages	== 0	&& \
-	(info)->seg_not_present	== 1	&& \
-	(info)->useable		== 0	)
-
-#endif
diff --git a/arch/um/include/asm/device.h b/arch/um/include/asm/device.h
deleted file mode 100644
index d8f9872b0e2d..000000000000
--- a/arch/um/include/asm/device.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
diff --git a/arch/um/include/asm/emergency-restart.h b/arch/um/include/asm/emergency-restart.h
deleted file mode 100644
index 108d8c48e42e..000000000000
--- a/arch/um/include/asm/emergency-restart.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_EMERGENCY_RESTART_H
-#define _ASM_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/um/include/asm/ftrace.h b/arch/um/include/asm/ftrace.h
deleted file mode 100644
index 40a8c178f10d..000000000000
--- a/arch/um/include/asm/ftrace.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/um/include/asm/futex.h b/arch/um/include/asm/futex.h
deleted file mode 100644
index 6a332a9f099c..000000000000
--- a/arch/um/include/asm/futex.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_FUTEX_H
-#define _ASM_FUTEX_H
-
-#include <asm-generic/futex.h>
-
-#endif
diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h
deleted file mode 100644
index fb3c05a0cbbf..000000000000
--- a/arch/um/include/asm/hardirq.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/hardirq.h>
diff --git a/arch/um/include/asm/hw_irq.h b/arch/um/include/asm/hw_irq.h
deleted file mode 100644
index 1cf84cf5f21a..000000000000
--- a/arch/um/include/asm/hw_irq.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_UM_HW_IRQ_H
-#define _ASM_UM_HW_IRQ_H
-
-#include "asm/irq.h"
-#include "asm/archparam.h"
-
-#endif
diff --git a/arch/um/include/asm/irq_regs.h b/arch/um/include/asm/irq_regs.h
deleted file mode 100644
index 3dd9c0b70270..000000000000
--- a/arch/um/include/asm/irq_regs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/irq_regs.h>
diff --git a/arch/um/include/asm/irq_vectors.h b/arch/um/include/asm/irq_vectors.h
deleted file mode 100644
index 272a81e0ce14..000000000000
--- a/arch/um/include/asm/irq_vectors.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __UM_IRQ_VECTORS_H
-#define __UM_IRQ_VECTORS_H
-
-#endif
-
diff --git a/arch/um/include/asm/irqflags.h b/arch/um/include/asm/irqflags.h
index 659b9abdfdba..c780d8a16773 100644
--- a/arch/um/include/asm/irqflags.h
+++ b/arch/um/include/asm/irqflags.h
@@ -1,6 +1,42 @@
 #ifndef __UM_IRQFLAGS_H
 #define __UM_IRQFLAGS_H
 
-/* Empty for now */
+extern int get_signals(void);
+extern int set_signals(int enable);
+extern void block_signals(void);
+extern void unblock_signals(void);
+
+static inline unsigned long arch_local_save_flags(void)
+{
+	return get_signals();
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+	set_signals(flags);
+}
+
+static inline void arch_local_irq_enable(void)
+{
+	unblock_signals();
+}
+
+static inline void arch_local_irq_disable(void)
+{
+	block_signals();
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+	unsigned long flags;
+	flags = arch_local_save_flags();
+	arch_local_irq_disable();
+	return flags;
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+	return arch_local_save_flags() == 0;
+}
 
 #endif
diff --git a/arch/um/include/asm/kdebug.h b/arch/um/include/asm/kdebug.h
deleted file mode 100644
index 6ece1b037665..000000000000
--- a/arch/um/include/asm/kdebug.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kdebug.h>
diff --git a/arch/um/include/asm/mmu.h b/arch/um/include/asm/mmu.h
index cf259de51531..30509b9f37fd 100644
--- a/arch/um/include/asm/mmu.h
+++ b/arch/um/include/asm/mmu.h
@@ -1,12 +1,24 @@
 /* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
-#ifndef __MMU_H
-#define __MMU_H
+#ifndef __ARCH_UM_MMU_H
+#define __ARCH_UM_MMU_H
 
-#include "um_mmu.h"
+#include "mm_id.h"
+#include <asm/mm_context.h>
 
-#endif
+typedef struct mm_context {
+	struct mm_id id;
+	struct uml_arch_mm_context arch;
+	struct page **stub_pages;
+} mm_context_t;
+
+extern void __switch_mm(struct mm_id * mm_idp);
 
+/* Avoid tangled inclusion with asm/ldt.h */
+extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm);
+extern void free_ldt(struct mm_context *mm);
+
+#endif
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index 34d813011b7a..591b3d8d7614 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -6,15 +6,12 @@
 #ifndef __UM_MMU_CONTEXT_H
 #define __UM_MMU_CONTEXT_H
 
-#include "linux/sched.h"
-#include "um_mmu.h"
+#include <linux/sched.h>
+#include <asm/mmu.h>
 
 extern void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm);
 extern void arch_exit_mmap(struct mm_struct *mm);
 
-#define get_mmu_context(task) do ; while(0)
-#define activate_context(tsk) do ; while(0)
-
 #define deactivate_mm(tsk,mm)	do { } while (0)
 
 extern void force_flush_all(void);
diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
index 4cc9b6cf480a..7cfc3cedce84 100644
--- a/arch/um/include/asm/page.h
+++ b/arch/um/include/asm/page.h
@@ -19,7 +19,7 @@
 struct page;
 
 #include <linux/types.h>
-#include <sysdep/vm-flags.h>
+#include <asm/vm-flags.h>
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/um/include/asm/page_offset.h b/arch/um/include/asm/page_offset.h
deleted file mode 100644
index 1c168dfbf359..000000000000
--- a/arch/um/include/asm/page_offset.h
+++ /dev/null
@@ -1 +0,0 @@
-#define PAGE_OFFSET_RAW (uml_physmem)
diff --git a/arch/um/include/asm/pda.h b/arch/um/include/asm/pda.h
deleted file mode 100644
index ddcd774fc2a0..000000000000
--- a/arch/um/include/asm/pda.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright 2003 PathScale, Inc.
- *
- * Licensed under the GPL
- */
-
-#ifndef __UM_PDA_X86_64_H
-#define __UM_PDA_X86_64_H
-
-/* XXX */
-struct foo {
-	unsigned int __softirq_pending;
-	unsigned int __nmi_count;
-};
-
-extern struct foo me;
-
-#define read_pda(me) (&me)
-
-#endif
-
diff --git a/arch/um/include/asm/percpu.h b/arch/um/include/asm/percpu.h
deleted file mode 100644
index efe7508d8abd..000000000000
--- a/arch/um/include/asm/percpu.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __UM_PERCPU_H
-#define __UM_PERCPU_H
-
-#include <asm-generic/percpu.h>
-
-#endif /* __UM_PERCPU_H */
diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h
index 1a7d2757fe05..f605d3c4844c 100644
--- a/arch/um/include/asm/ptrace-generic.h
+++ b/arch/um/include/asm/ptrace-generic.h
@@ -23,17 +23,10 @@ struct pt_regs {
 #define PT_REGS_IP(r) UPT_IP(&(r)->regs)
 #define PT_REGS_SP(r) UPT_SP(&(r)->regs)
 
-#define PT_REG(r, reg) UPT_REG(&(r)->regs, reg)
-#define PT_REGS_SET(r, reg, val) UPT_SET(&(r)->regs, reg, val)
-
-#define PT_REGS_SET_SYSCALL_RETURN(r, res) \
-	UPT_SET_SYSCALL_RETURN(&(r)->regs, res)
 #define PT_REGS_RESTART_SYSCALL(r) UPT_RESTART_SYSCALL(&(r)->regs)
 
 #define PT_REGS_SYSCALL_NR(r) UPT_SYSCALL_NR(&(r)->regs)
 
-#define PT_REGS_SC(r) UPT_SC(&(r)->regs)
-
 #define instruction_pointer(regs) PT_REGS_IP(regs)
 
 struct task_struct;
diff --git a/arch/um/include/asm/required-features.h b/arch/um/include/asm/required-features.h
deleted file mode 100644
index dfb967b2d2f3..000000000000
--- a/arch/um/include/asm/required-features.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __UM_REQUIRED_FEATURES_H
-#define __UM_REQUIRED_FEATURES_H
-
-/*
- * Nothing to see, just need something for the i386 and x86_64 asm
- * headers to include.
- */
-
-#endif
diff --git a/arch/um/include/asm/sections.h b/arch/um/include/asm/sections.h
deleted file mode 100644
index 6b0231eefea8..000000000000
--- a/arch/um/include/asm/sections.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _UM_SECTIONS_H
-#define _UM_SECTIONS_H
-
-/* nothing to see, move along */
-#include <asm-generic/sections.h>
-
-#endif
diff --git a/arch/um/include/asm/segment.h b/arch/um/include/asm/segment.h
deleted file mode 100644
index 45183fcd10b6..000000000000
--- a/arch/um/include/asm/segment.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __UM_SEGMENT_H
-#define __UM_SEGMENT_H
-
-extern int host_gdt_entry_tls_min;
-
-#define GDT_ENTRY_TLS_ENTRIES 3
-#define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min
-#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
-
-#endif
diff --git a/arch/um/include/asm/system.h b/arch/um/include/asm/system.h
deleted file mode 100644
index 68a90ecd1450..000000000000
--- a/arch/um/include/asm/system.h
+++ /dev/null
@@ -1,47 +0,0 @@
-#ifndef __UM_SYSTEM_GENERIC_H
-#define __UM_SYSTEM_GENERIC_H
-
-#include "sysdep/system.h"
-
-extern int get_signals(void);
-extern int set_signals(int enable);
-extern void block_signals(void);
-extern void unblock_signals(void);
-
-static inline unsigned long arch_local_save_flags(void)
-{
-	return get_signals();
-}
-
-static inline void arch_local_irq_restore(unsigned long flags)
-{
-	set_signals(flags);
-}
-
-static inline void arch_local_irq_enable(void)
-{
-	unblock_signals();
-}
-
-static inline void arch_local_irq_disable(void)
-{
-	block_signals();
-}
-
-static inline unsigned long arch_local_irq_save(void)
-{
-	unsigned long flags;
-	flags = arch_local_save_flags();
-	arch_local_irq_disable();
-	return flags;
-}
-
-static inline bool arch_irqs_disabled(void)
-{
-	return arch_local_save_flags() == 0;
-}
-
-extern void *_switch_to(void *prev, void *next, void *last);
-#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)
-
-#endif
diff --git a/arch/um/include/asm/topology.h b/arch/um/include/asm/topology.h
deleted file mode 100644
index 0905e4f21d42..000000000000
--- a/arch/um/include/asm/topology.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_UM_TOPOLOGY_H
-#define _ASM_UM_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif
diff --git a/arch/um/include/asm/uaccess.h b/arch/um/include/asm/uaccess.h
index b9a895d6fa1d..3f22fbf7ca1d 100644
--- a/arch/um/include/asm/uaccess.h
+++ b/arch/um/include/asm/uaccess.h
@@ -6,15 +6,15 @@
 #ifndef __UM_UACCESS_H
 #define __UM_UACCESS_H
 
-#include <asm/errno.h>
-#include <asm/processor.h>
-
 /* thread_info has a mm_segment_t in it, so put the definition up here */
 typedef struct {
 	unsigned long seg;
 } mm_segment_t;
 
-#include "linux/thread_info.h"
+#include <linux/thread_info.h>
+#include <linux/errno.h>
+#include <asm/processor.h>
+#include <asm/elf.h>
 
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
@@ -38,7 +38,86 @@ typedef struct {
 
 #define segment_eq(a, b) ((a).seg == (b).seg)
 
-#include "um_uaccess.h"
+#define __under_task_size(addr, size) \
+	(((unsigned long) (addr) < TASK_SIZE) && \
+	 (((unsigned long) (addr) + (size)) < TASK_SIZE))
+
+#define __access_ok_vsyscall(type, addr, size) \
+	 ((type == VERIFY_READ) && \
+	  ((unsigned long) (addr) >= FIXADDR_USER_START) && \
+	  ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
+	  ((unsigned long) (addr) + (size) >= (unsigned long)(addr)))
+
+#define __addr_range_nowrap(addr, size) \
+	((unsigned long) (addr) <= ((unsigned long) (addr) + (size)))
+
+#define access_ok(type, addr, size) \
+	(__addr_range_nowrap(addr, size) && \
+	 (__under_task_size(addr, size) || \
+	  __access_ok_vsyscall(type, addr, size) || \
+	  segment_eq(get_fs(), KERNEL_DS)))
+
+extern int copy_from_user(void *to, const void __user *from, int n);
+extern int copy_to_user(void __user *to, const void *from, int n);
+
+/*
+ * strncpy_from_user: - Copy a NUL terminated string from userspace.
+ * @dst:   Destination address, in kernel space.  This buffer must be at
+ *         least @count bytes long.
+ * @src:   Source address, in user space.
+ * @count: Maximum number of bytes to copy, including the trailing NUL.
+ *
+ * Copies a NUL-terminated string from userspace to kernel space.
+ *
+ * On success, returns the length of the string (not including the trailing
+ * NUL).
+ *
+ * If access to userspace fails, returns -EFAULT (some data may have been
+ * copied).
+ *
+ * If @count is smaller than the length of the string, copies @count bytes
+ * and returns @count.
+ */
+
+extern int strncpy_from_user(char *dst, const char __user *src, int count);
+
+/*
+ * __clear_user: - Zero a block of memory in user space, with less checking.
+ * @to:   Destination address, in user space.
+ * @n:    Number of bytes to zero.
+ *
+ * Zero a block of memory in user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+extern int __clear_user(void __user *mem, int len);
+
+/*
+ * clear_user: - Zero a block of memory in user space.
+ * @to:   Destination address, in user space.
+ * @n:    Number of bytes to zero.
+ *
+ * Zero a block of memory in user space.
+ *
+ * Returns number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+extern int clear_user(void __user *mem, int len);
+
+/*
+ * strlen_user: - Get the size of a string in user space.
+ * @str: The string to measure.
+ * @n:   The maximum valid length
+ *
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ * If the string is too long, returns a value greater than @n.
+ */
+extern int strnlen_user(const void __user *str, int len);
 
 #define __copy_from_user(to, from, n) copy_from_user(to, from, n)
 
diff --git a/arch/um/include/asm/xor.h b/arch/um/include/asm/xor.h
deleted file mode 100644
index a19db3e17241..000000000000
--- a/arch/um/include/asm/xor.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __UM_XOR_H
-#define __UM_XOR_H
-
-#include "asm-generic/xor.h"
-
-#endif
diff --git a/arch/um/include/shared/as-layout.h b/arch/um/include/shared/as-layout.h
index a92b678503cf..896e16602176 100644
--- a/arch/um/include/shared/as-layout.h
+++ b/arch/um/include/shared/as-layout.h
@@ -6,7 +6,7 @@
 #ifndef __START_H__
 #define __START_H__
 
-#include "kern_constants.h"
+#include <generated/asm-offsets.h>
 
 /*
  * Stolen from linux/const.h, which can't be directly included since
diff --git a/arch/um/include/shared/chan_kern.h b/arch/um/include/shared/chan_kern.h
deleted file mode 100644
index 1e651457e049..000000000000
--- a/arch/um/include/shared/chan_kern.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* 
- * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __CHAN_KERN_H__
-#define __CHAN_KERN_H__
-
-#include "linux/tty.h"
-#include "linux/list.h"
-#include "linux/console.h"
-#include "chan_user.h"
-#include "line.h"
-
-struct chan {
-	struct list_head list;
-	struct list_head free_list;
-	struct line *line;
-	char *dev;
-	unsigned int primary:1;
-	unsigned int input:1;
-	unsigned int output:1;
-	unsigned int opened:1;
-	unsigned int enabled:1;
-	int fd;
-	const struct chan_ops *ops;
-	void *data;
-};
-
-extern void chan_interrupt(struct list_head *chans, struct delayed_work *task,
-			   struct tty_struct *tty, int irq);
-extern int parse_chan_pair(char *str, struct line *line, int device,
-			   const struct chan_opts *opts, char **error_out);
-extern int write_chan(struct list_head *chans, const char *buf, int len,
-			     int write_irq);
-extern int console_write_chan(struct list_head *chans, const char *buf, 
-			      int len);
-extern int console_open_chan(struct line *line, struct console *co);
-extern void deactivate_chan(struct list_head *chans, int irq);
-extern void reactivate_chan(struct list_head *chans, int irq);
-extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
-extern int enable_chan(struct line *line);
-extern void close_chan(struct list_head *chans, int delay_free_irq);
-extern int chan_window_size(struct list_head *chans, 
-			     unsigned short *rows_out, 
-			     unsigned short *cols_out);
-extern int chan_config_string(struct list_head *chans, char *str, int size,
-			      char **error_out);
-
-#endif
diff --git a/arch/um/include/shared/chan_user.h b/arch/um/include/shared/chan_user.h
deleted file mode 100644
index 9b9ced85b703..000000000000
--- a/arch/um/include/shared/chan_user.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __CHAN_USER_H__
-#define __CHAN_USER_H__
-
-#include "init.h"
-
-struct chan_opts {
-	void (*const announce)(char *dev_name, int dev);
-	char *xterm_title;
-	const int raw;
-};
-
-enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE };
-
-struct chan_ops {
-	char *type;
-	void *(*init)(char *, int, const struct chan_opts *);
-	int (*open)(int, int, int, void *, char **);
-	void (*close)(int, void *);
-	int (*read)(int, char *, void *);
-	int (*write)(int, const char *, int, void *);
-	int (*console_write)(int, const char *, int);
-	int (*window_size)(int, void *, unsigned short *, unsigned short *);
-	void (*free)(void *);
-	int winch;
-};
-
-extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops,
-	tty_ops, xterm_ops;
-
-extern void generic_close(int fd, void *unused);
-extern int generic_read(int fd, char *c_out, void *unused);
-extern int generic_write(int fd, const char *buf, int n, void *unused);
-extern int generic_console_write(int fd, const char *buf, int n);
-extern int generic_window_size(int fd, void *unused, unsigned short *rows_out,
-			       unsigned short *cols_out);
-extern void generic_free(void *data);
-
-struct tty_struct;
-extern void register_winch(int fd,  struct tty_struct *tty);
-extern void register_winch_irq(int fd, int tty_fd, int pid,
-			       struct tty_struct *tty, unsigned long stack);
-
-#define __channel_help(fn, prefix) \
-__uml_help(fn, prefix "[0-9]*=<channel description>\n" \
-"    Attach a console or serial line to a host channel.  See\n" \
-"    http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \
-"    description of this switch.\n\n" \
-);
-
-#endif
diff --git a/arch/um/include/shared/common-offsets.h b/arch/um/include/shared/common-offsets.h
index 72009c7e3210..d7fe563aa7e7 100644
--- a/arch/um/include/shared/common-offsets.h
+++ b/arch/um/include/shared/common-offsets.h
@@ -2,7 +2,6 @@
 
 DEFINE(KERNEL_MADV_REMOVE, MADV_REMOVE);
 
-OFFSET(HOST_TASK_REGS, task_struct, thread.regs);
 OFFSET(HOST_TASK_PID, task_struct, pid);
 
 DEFINE(UM_KERN_PAGE_SIZE, PAGE_SIZE);
diff --git a/arch/um/include/shared/initrd.h b/arch/um/include/shared/initrd.h
deleted file mode 100644
index 22673bcc273d..000000000000
--- a/arch/um/include/shared/initrd.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __INITRD_USER_H__
-#define __INITRD_USER_H__
-
-extern int load_initrd(char *filename, void *buf, int size);
-
-#endif
-
diff --git a/arch/um/include/shared/kern.h b/arch/um/include/shared/kern.h
index 4ce3fc650e57..6cd01240bbf0 100644
--- a/arch/um/include/shared/kern.h
+++ b/arch/um/include/shared/kern.h
@@ -13,28 +13,10 @@
  * includes.
  */
 
-extern int errno;
-
-extern int clone(int (*proc)(void *), void *sp, int flags, void *data);
-extern int sleep(int);
 extern int printf(const char *fmt, ...);
-extern char *strerror(int errnum);
-extern char *ptsname(int __fd);
-extern int munmap(void *, int);
 extern void *sbrk(int increment);
-extern void *malloc(int size);
-extern void perror(char *err);
-extern int kill(int pid, int sig);
-extern int getuid(void);
-extern int getgid(void);
 extern int pause(void);
-extern int write(int, const void *, int);
 extern void exit(int);
-extern int close(int);
-extern int read(unsigned int, char *, int);
-extern int pipe(int *);
-extern int sched_yield(void);
-extern int ptrace(int op, int pid, long addr, long data);
 
 #endif
 
diff --git a/arch/um/include/shared/kern_util.h b/arch/um/include/shared/kern_util.h
index 3c341222d252..0f1483852460 100644
--- a/arch/um/include/shared/kern_util.h
+++ b/arch/um/include/shared/kern_util.h
@@ -21,7 +21,6 @@ extern unsigned long alloc_stack(int order, int atomic);
 extern void free_stack(unsigned long stack, int order);
 
 extern int do_signal(void);
-extern void copy_sc(struct uml_pt_regs *regs, void *from);
 extern void interrupt_end(void);
 extern void relay_signal(int sig, struct uml_pt_regs *regs);
 
diff --git a/arch/um/include/shared/ldt.h b/arch/um/include/shared/ldt.h
deleted file mode 100644
index a7f999a58774..000000000000
--- a/arch/um/include/shared/ldt.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
- * Licensed under the GPL
- *
- * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
- */
-
-#ifndef __ASM_LDT_H
-#define __ASM_LDT_H
-
-#include <linux/mutex.h>
-#include <sysdep/host_ldt.h>
-
-extern void ldt_host_info(void);
-
-#define LDT_PAGES_MAX \
-	((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
-#define LDT_ENTRIES_PER_PAGE \
-	(PAGE_SIZE/LDT_ENTRY_SIZE)
-#define LDT_DIRECT_ENTRIES \
-	((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
-
-struct ldt_entry {
-	__u32 a;
-	__u32 b;
-};
-
-typedef struct uml_ldt {
-	int entry_count;
-	struct mutex lock;
-	union {
-		struct ldt_entry * pages[LDT_PAGES_MAX];
-		struct ldt_entry entries[LDT_DIRECT_ENTRIES];
-	} u;
-} uml_ldt_t;
-
-#endif
diff --git a/arch/um/include/shared/line.h b/arch/um/include/shared/line.h
deleted file mode 100644
index 63df3ca02ac2..000000000000
--- a/arch/um/include/shared/line.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/* 
- * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __LINE_H__
-#define __LINE_H__
-
-#include "linux/list.h"
-#include "linux/workqueue.h"
-#include "linux/tty.h"
-#include "linux/interrupt.h"
-#include "linux/spinlock.h"
-#include "linux/mutex.h"
-#include "chan_user.h"
-#include "mconsole_kern.h"
-
-/* There's only one modifiable field in this - .mc.list */
-struct line_driver {
-	const char *name;
-	const char *device_name;
-	const short major;
-	const short minor_start;
-	const short type;
-	const short subtype;
-	const int read_irq;
-	const char *read_irq_name;
-	const int write_irq;
-	const char *write_irq_name;
-	struct mc_device mc;
-};
-
-struct line {
-	struct tty_struct *tty;
-	spinlock_t count_lock;
-	unsigned long count;
-	int valid;
-
-	char *init_str;
-	int init_pri;
-	struct list_head chan_list;
-
-	/*This lock is actually, mostly, local to*/
-	spinlock_t lock;
-	int throttled;
-	/* Yes, this is a real circular buffer.
-	 * XXX: And this should become a struct kfifo!
-	 *
-	 * buffer points to a buffer allocated on demand, of length
-	 * LINE_BUFSIZE, head to the start of the ring, tail to the end.*/
-	char *buffer;
-	char *head;
-	char *tail;
-
-	int sigio;
-	struct delayed_work task;
-	const struct line_driver *driver;
-	int have_irq;
-};
-
-#define LINE_INIT(str, d) \
-	{ .count_lock =	__SPIN_LOCK_UNLOCKED((str).count_lock), \
-	  .init_str =	str,	\
-	  .init_pri =	INIT_STATIC, \
-	  .valid =	1, \
-	  .lock =	__SPIN_LOCK_UNLOCKED((str).lock), \
-	  .driver =	d }
-
-extern void line_close(struct tty_struct *tty, struct file * filp);
-extern int line_open(struct line *lines, struct tty_struct *tty);
-extern int line_setup(struct line *lines, unsigned int sizeof_lines,
-		      char *init, char **error_out);
-extern int line_write(struct tty_struct *tty, const unsigned char *buf,
-		      int len);
-extern int line_put_char(struct tty_struct *tty, unsigned char ch);
-extern void line_set_termios(struct tty_struct *tty, struct ktermios * old);
-extern int line_chars_in_buffer(struct tty_struct *tty);
-extern void line_flush_buffer(struct tty_struct *tty);
-extern void line_flush_chars(struct tty_struct *tty);
-extern int line_write_room(struct tty_struct *tty);
-extern int line_ioctl(struct tty_struct *tty, unsigned int cmd,
-				unsigned long arg);
-extern void line_throttle(struct tty_struct *tty);
-extern void line_unthrottle(struct tty_struct *tty);
-
-extern char *add_xterm_umid(char *base);
-extern int line_setup_irq(int fd, int input, int output, struct line *line,
-			  void *data);
-extern void line_close_chan(struct line *line);
-extern struct tty_driver *register_lines(struct line_driver *line_driver,
-					 const struct tty_operations *driver,
-					 struct line *lines, int nlines);
-extern void lines_init(struct line *lines, int nlines, struct chan_opts *opts);
-extern void close_lines(struct line *lines, int nlines);
-
-extern int line_config(struct line *lines, unsigned int sizeof_lines,
-		       char *str, const struct chan_opts *opts,
-		       char **error_out);
-extern int line_id(char **str, int *start_out, int *end_out);
-extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n,
-		       char **error_out);
-extern int line_get_config(char *dev, struct line *lines,
-			   unsigned int sizeof_lines, char *str,
-			   int size, char **error_out);
-
-#endif
diff --git a/arch/um/include/shared/mconsole.h b/arch/um/include/shared/mconsole.h
deleted file mode 100644
index c139ae1d6826..000000000000
--- a/arch/um/include/shared/mconsole.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org)
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#ifndef __MCONSOLE_H__
-#define __MCONSOLE_H__
-
-#ifndef __KERNEL__
-#include <stdint.h>
-#define u32 uint32_t
-#endif
-
-#include "sysdep/ptrace.h"
-
-#define MCONSOLE_MAGIC (0xcafebabe)
-#define MCONSOLE_MAX_DATA (512)
-#define MCONSOLE_VERSION 2
-
-struct mconsole_request {
-	u32 magic;
-	u32 version;
-	u32 len;
-	char data[MCONSOLE_MAX_DATA];
-};
-
-struct mconsole_reply {
-	u32 err;
-	u32 more;
-	u32 len;
-	char data[MCONSOLE_MAX_DATA];
-};
-
-struct mconsole_notify {
-	u32 magic;
-	u32 version;
-	enum { MCONSOLE_SOCKET, MCONSOLE_PANIC, MCONSOLE_HANG,
-	       MCONSOLE_USER_NOTIFY } type;
-	u32 len;
-	char data[MCONSOLE_MAX_DATA];
-};
-
-struct mc_request;
-
-enum mc_context { MCONSOLE_INTR, MCONSOLE_PROC };
-
-struct mconsole_command
-{
-	char *command;
-	void (*handler)(struct mc_request *req);
-	enum mc_context context;
-};
-
-struct mc_request
-{
-	int len;
-	int as_interrupt;
-
-	int originating_fd;
-	unsigned int originlen;
-	unsigned char origin[128];			/* sockaddr_un */
-
-	struct mconsole_request request;
-	struct mconsole_command *cmd;
-	struct uml_pt_regs regs;
-};
-
-extern char mconsole_socket_name[];
-
-extern int mconsole_unlink_socket(void);
-extern int mconsole_reply_len(struct mc_request *req, const char *reply,
-			      int len, int err, int more);
-extern int mconsole_reply(struct mc_request *req, const char *str, int err,
-			  int more);
-
-extern void mconsole_version(struct mc_request *req);
-extern void mconsole_help(struct mc_request *req);
-extern void mconsole_halt(struct mc_request *req);
-extern void mconsole_reboot(struct mc_request *req);
-extern void mconsole_config(struct mc_request *req);
-extern void mconsole_remove(struct mc_request *req);
-extern void mconsole_sysrq(struct mc_request *req);
-extern void mconsole_cad(struct mc_request *req);
-extern void mconsole_stop(struct mc_request *req);
-extern void mconsole_go(struct mc_request *req);
-extern void mconsole_log(struct mc_request *req);
-extern void mconsole_proc(struct mc_request *req);
-extern void mconsole_stack(struct mc_request *req);
-
-extern int mconsole_get_request(int fd, struct mc_request *req);
-extern int mconsole_notify(char *sock_name, int type, const void *data,
-			   int len);
-extern char *mconsole_notify_socket(void);
-extern void lock_notify(void);
-extern void unlock_notify(void);
-
-#endif
diff --git a/arch/um/include/shared/mconsole_kern.h b/arch/um/include/shared/mconsole_kern.h
deleted file mode 100644
index d2fe07e78958..000000000000
--- a/arch/um/include/shared/mconsole_kern.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __MCONSOLE_KERN_H__
-#define __MCONSOLE_KERN_H__
-
-#include "linux/list.h"
-#include "mconsole.h"
-
-struct mconsole_entry {
-	struct list_head list;
-	struct mc_request request;
-};
-
-/* All these methods are called in process context. */
-struct mc_device {
-	struct list_head list;
-	char *name;
-	int (*config)(char *, char **);
-	int (*get_config)(char *, char *, int, char **);
-	int (*id)(char **, int *, int *);
-	int (*remove)(int, char **);
-};
-
-#define CONFIG_CHUNK(str, size, current, chunk, end) \
-do { \
-	current += strlen(chunk); \
-	if(current >= size) \
-		str = NULL; \
-	if(str != NULL){ \
-		strcpy(str, chunk); \
-		str += strlen(chunk); \
-	} \
-	if(end) \
-		current++; \
-} while(0)
-
-#ifdef CONFIG_MCONSOLE
-
-extern void mconsole_register_dev(struct mc_device *new);
-
-#else
-
-static inline void mconsole_register_dev(struct mc_device *new)
-{
-}
-
-#endif
-
-#endif
diff --git a/arch/um/include/shared/mem_kern.h b/arch/um/include/shared/mem_kern.h
deleted file mode 100644
index 69be0fd0ce4b..000000000000
--- a/arch/um/include/shared/mem_kern.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2003 Jeff Dike (jdike@addtoit.com)
- * Licensed under the GPL
- */
-
-#ifndef __MEM_KERN_H__
-#define __MEM_KERN_H__
-
-#include "linux/list.h"
-#include "linux/types.h"
-
-struct remapper {
-	struct list_head list;
-	int (*proc)(int, unsigned long, int, __u64);
-};
-
-extern void register_remapper(struct remapper *info);
-
-#endif
-
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 83c7c2ecd614..89b686c1a3ea 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -10,7 +10,6 @@
 #include "irq_user.h"
 #include "longjmp.h"
 #include "mm_id.h"
-#include "sysdep/tls.h"
 
 #define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR))
 
@@ -203,12 +202,6 @@ extern int os_drop_memory(void *addr, int length);
 extern int can_drop_memory(void);
 extern void os_flush_stdout(void);
 
-/* uaccess.c */
-extern unsigned long __do_user_copy(void *to, const void *from, int n,
-				    void **fault_addr, jmp_buf **fault_catcher,
-				    void (*op)(void *to, const void *from,
-					       int n), int *faulted_out);
-
 /* execvp.c */
 extern int execvp_noalloc(char *buf, const char *file, char *const argv[]);
 /* helper.c */
@@ -218,10 +211,6 @@ extern int run_helper_thread(int (*proc)(void *), void *arg,
 extern int helper_wait(int pid);
 
 
-/* tls.c */
-extern int os_set_thread_area(user_desc_t *info, int pid);
-extern int os_get_thread_area(user_desc_t *info, int pid);
-
 /* umid.c */
 extern int umid_file_name(char *name, char *buf, int len);
 extern int set_umid(char *name);
@@ -231,7 +220,7 @@ extern char *get_umid(void);
 extern void timer_init(void);
 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 void set_handler(int sig);
 extern int change_sig(int signal, int on);
 extern void block_signals(void);
 extern void unblock_signals(void);
diff --git a/arch/um/include/shared/process.h b/arch/um/include/shared/process.h
deleted file mode 100644
index bb873a51262e..000000000000
--- a/arch/um/include/shared/process.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* 
- * Copyright (C) 2000 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#ifndef __PROCESS_H__
-#define __PROCESS_H__
-
-#include <signal.h>
-
-/* Copied from linux/compiler-gcc.h since we can't include it directly */
-#define barrier() __asm__ __volatile__("": : :"memory")
-
-extern void sig_handler(int sig, struct sigcontext *sc);
-extern void alarm_handler(int sig, struct sigcontext *sc);
-
-#endif
diff --git a/arch/um/include/shared/ptrace_user.h b/arch/um/include/shared/ptrace_user.h
index 7fd8539bc19a..56b2f284b108 100644
--- a/arch/um/include/shared/ptrace_user.h
+++ b/arch/um/include/shared/ptrace_user.h
@@ -6,7 +6,8 @@
 #ifndef __PTRACE_USER_H__
 #define __PTRACE_USER_H__
 
-#include "sysdep/ptrace_user.h"
+#include <sys/ptrace.h>
+#include <sysdep/ptrace_user.h>
 
 extern int ptrace_getregs(long pid, unsigned long *regs_out);
 extern int ptrace_setregs(long pid, unsigned long *regs_in);
diff --git a/arch/um/include/shared/skas_ptregs.h b/arch/um/include/shared/skas_ptregs.h
deleted file mode 100644
index 73db19e9c077..000000000000
--- a/arch/um/include/shared/skas_ptregs.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __SKAS_PT_REGS_
-#define __SKAS_PT_REGS_
-
-#include <user_constants.h>
-
-#endif
diff --git a/arch/um/include/shared/syscall.h b/arch/um/include/shared/syscall.h
deleted file mode 100644
index dda1df901a08..000000000000
--- a/arch/um/include/shared/syscall.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __SYSCALL_USER_H
-#define __SYSCALL_USER_H
-
-extern int record_syscall_start(int syscall);
-extern void record_syscall_end(int index, long result);
-
-#endif
diff --git a/arch/um/include/shared/task.h b/arch/um/include/shared/task.h
deleted file mode 100644
index 3fe726b3cf48..000000000000
--- a/arch/um/include/shared/task.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __TASK_H
-#define __TASK_H
-
-#include <kern_constants.h>
-
-#define TASK_REGS(task) ((struct uml_pt_regs *) &(((char *) (task))[HOST_TASK_REGS]))
-#define TASK_PID(task) *((int *) &(((char *) (task))[HOST_TASK_PID]))
-
-#endif
diff --git a/arch/um/include/shared/tlb.h b/arch/um/include/shared/tlb.h
deleted file mode 100644
index ecd2265b301b..000000000000
--- a/arch/um/include/shared/tlb.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __TLB_H__
-#define __TLB_H__
-
-#include "um_mmu.h"
-
-extern void force_flush_all(void);
-extern int flush_tlb_kernel_range_common(unsigned long start,
-					 unsigned long end);
-
-#endif
diff --git a/arch/um/include/shared/ubd_user.h b/arch/um/include/shared/ubd_user.h
deleted file mode 100644
index 3845051f1b10..000000000000
--- a/arch/um/include/shared/ubd_user.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* 
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Copyright (C) 2001 RidgeRun, Inc (glonnon@ridgerun.com)
- * Licensed under the GPL
- */
-
-#ifndef __UM_UBD_USER_H
-#define __UM_UBD_USER_H
-
-extern void ignore_sigwinch_sig(void);
-extern int start_io_thread(unsigned long sp, int *fds_out);
-extern int io_thread(void *arg);
-extern int kernel_fd;
-
-#endif
-
diff --git a/arch/um/include/shared/um_malloc.h b/arch/um/include/shared/um_malloc.h
index c554d706d106..6395fef6b69b 100644
--- a/arch/um/include/shared/um_malloc.h
+++ b/arch/um/include/shared/um_malloc.h
@@ -6,7 +6,7 @@
 #ifndef __UM_MALLOC_H__
 #define __UM_MALLOC_H__
 
-#include "kern_constants.h"
+#include <generated/asm-offsets.h>
 
 extern void *uml_kmalloc(int size, int flags);
 extern void kfree(const void *ptr);
diff --git a/arch/um/include/shared/um_mmu.h b/arch/um/include/shared/um_mmu.h
deleted file mode 100644
index b1a7e47d1027..000000000000
--- a/arch/um/include/shared/um_mmu.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 
- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#ifndef __ARCH_UM_MMU_H
-#define __ARCH_UM_MMU_H
-
-#include "mm_id.h"
-#include "ldt.h"
-
-typedef struct mm_context {
-	struct mm_id id;
-	struct uml_ldt ldt;
-	struct page **stub_pages;
-} mm_context_t;
-
-extern void __switch_mm(struct mm_id * mm_idp);
-
-/* Avoid tangled inclusion with asm/ldt.h */
-extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm);
-extern void free_ldt(struct mm_context *mm);
-
-#endif
diff --git a/arch/um/include/shared/um_uaccess.h b/arch/um/include/shared/um_uaccess.h
deleted file mode 100644
index 45c04999d670..000000000000
--- a/arch/um/include/shared/um_uaccess.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* 
- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#ifndef __ARCH_UM_UACCESS_H
-#define __ARCH_UM_UACCESS_H
-
-#include <asm/elf.h>
-#include <asm/fixmap.h>
-#include "sysdep/archsetjmp.h"
-
-#define __under_task_size(addr, size) \
-	(((unsigned long) (addr) < TASK_SIZE) && \
-	 (((unsigned long) (addr) + (size)) < TASK_SIZE))
-
-#define __access_ok_vsyscall(type, addr, size) \
-	 ((type == VERIFY_READ) && \
-	  ((unsigned long) (addr) >= FIXADDR_USER_START) && \
-	  ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
-	  ((unsigned long) (addr) + (size) >= (unsigned long)(addr)))
-
-#define __addr_range_nowrap(addr, size) \
-	((unsigned long) (addr) <= ((unsigned long) (addr) + (size)))
-
-#define access_ok(type, addr, size) \
-	(__addr_range_nowrap(addr, size) && \
-	 (__under_task_size(addr, size) || \
-	  __access_ok_vsyscall(type, addr, size) || \
-	  segment_eq(get_fs(), KERNEL_DS)))
-
-extern int copy_from_user(void *to, const void __user *from, int n);
-extern int copy_to_user(void __user *to, const void *from, int n);
-
-extern int __do_copy_to_user(void *to, const void *from, int n,
-			     void **fault_addr, jmp_buf **fault_catcher);
-
-/*
- * strncpy_from_user: - Copy a NUL terminated string from userspace.
- * @dst:   Destination address, in kernel space.  This buffer must be at
- *         least @count bytes long.
- * @src:   Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-
-extern int strncpy_from_user(char *dst, const char __user *src, int count);
-
-/*
- * __clear_user: - Zero a block of memory in user space, with less checking.
- * @to:   Destination address, in user space.
- * @n:    Number of bytes to zero.
- *
- * Zero a block of memory in user space.  Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be cleared.
- * On success, this will be zero.
- */
-extern int __clear_user(void __user *mem, int len);
-
-/*
- * clear_user: - Zero a block of memory in user space.
- * @to:   Destination address, in user space.
- * @n:    Number of bytes to zero.
- *
- * Zero a block of memory in user space.
- *
- * Returns number of bytes that could not be cleared.
- * On success, this will be zero.
- */
-extern int clear_user(void __user *mem, int len);
-
-/*
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- * @n:   The maximum valid length
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- * If the string is too long, returns a value greater than @n.
- */
-extern int strnlen_user(const void __user *str, int len);
-
-#endif
diff --git a/arch/um/include/shared/user.h b/arch/um/include/shared/user.h
index 293f7c794faa..4fa82c055aab 100644
--- a/arch/um/include/shared/user.h
+++ b/arch/um/include/shared/user.h
@@ -6,7 +6,7 @@
 #ifndef __USER_H__
 #define __USER_H__
 
-#include "kern_constants.h"
+#include <generated/asm-offsets.h>
 
 /*
  * The usual definition - copied here because the kernel provides its own,
@@ -36,10 +36,11 @@ static inline int printk(const char *fmt, ...)
 }
 #endif
 
-extern void schedule(void);
 extern int in_aton(char *str);
-extern int open_gdb_chan(void);
 extern size_t strlcpy(char *, const char *, size_t);
 extern size_t strlcat(char *, const char *, size_t);
 
+/* Copied from linux/compiler-gcc.h since we can't include it directly */
+#define barrier() __asm__ __volatile__("": : :"memory")
+
 #endif