Merge branch 'master' into percpu

Conflicts:
	arch/powerpc/platforms/pseries/hvCall.S
	include/linux/percpu.h

33 files changed, 250 insertions, 273 deletions

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index f388dc68f60..524d9352f17 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,6 +18,7 @@ config PARISC
 	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
+	select HAVE_ARCH_TRACEHOOK
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
 	  in many of their workstations & servers (HP9000 700 and 800 series,
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index 18072e03a01..92343bd35fa 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -445,12 +445,7 @@ done:
 
 int hpux_pipe(int *kstack_fildes)
 {
-	int error;
-
-	lock_kernel();
-	error = do_pipe_flags(kstack_fildes, 0);
-	unlock_kernel();
-	return error;
+	return do_pipe_flags(kstack_fildes, 0);
 }
 
 /* lies - says it works, but it really didn't lock anything */
diff --git a/arch/parisc/include/asm/asm-offsets.h b/arch/parisc/include/asm/asm-offsets.h
new file mode 100644
index 00000000000..d370ee36a18
--- /dev/null
+++ b/arch/parisc/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 8bc9e96699b..716634d1f54 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -27,19 +27,19 @@
 #  define ATOMIC_HASH_SIZE 4
 #  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
-extern raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
 #define _atomic_spin_lock_irqsave(l,f) do {	\
-	raw_spinlock_t *s = ATOMIC_HASH(l);		\
+	arch_spinlock_t *s = ATOMIC_HASH(l);		\
 	local_irq_save(f);			\
-	__raw_spin_lock(s);			\
+	arch_spin_lock(s);			\
 } while(0)
 
 #define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	raw_spinlock_t *s = ATOMIC_HASH(l);			\
-	__raw_spin_unlock(s);				\
+	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 8cfc553fc83..75e46c557a1 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -32,14 +32,14 @@
 			     "\t.popsection"				\
 			     : : "i" (__FILE__), "i" (__LINE__),	\
 			     "i" (0), "i" (sizeof(struct bug_entry)) ); \
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 
 #else
 #define BUG()								\
 	do {								\
 		asm volatile(PARISC_BUG_BREAK_ASM : : );		\
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 #endif
 
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 724395143f2..7a73b615c23 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -42,6 +42,7 @@ void flush_cache_mm(struct mm_struct *mm);
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 extern void flush_dcache_page(struct page *page);
 
 #define flush_dcache_mmap_lock(mapping) \
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 9c802eb4be8..19f6cb1a4a1 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -328,7 +328,6 @@ struct pt_regs;	/* forward declaration... */
    such function.  */
 #define ELF_PLAT_INIT(_r, load_addr)       _r->gr[23] = 0
 
-#define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE	4096
 
 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
diff --git a/arch/parisc/include/asm/fcntl.h b/arch/parisc/include/asm/fcntl.h
index 5f39d5597ce..f357fc693c8 100644
--- a/arch/parisc/include/asm/fcntl.h
+++ b/arch/parisc/include/asm/fcntl.h
@@ -1,14 +1,13 @@
 #ifndef _PARISC_FCNTL_H
 #define _PARISC_FCNTL_H
 
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
 #define O_APPEND	000000010
 #define O_BLKSEEK	000000100 /* HPUX only */
 #define O_CREAT		000000400 /* not fcntl */
 #define O_EXCL		000002000 /* not fcntl */
 #define O_LARGEFILE	000004000
-#define O_SYNC		000100000
+#define __O_SYNC	000100000
+#define O_SYNC		(__O_SYNC|O_DSYNC)
 #define O_NONBLOCK	000200004 /* HPUX has separate NDELAY & NONBLOCK */
 #define O_NOCTTY	000400000 /* not fcntl */
 #define O_DSYNC		001000000 /* HPUX only */
@@ -28,8 +27,6 @@
 #define F_SETOWN	12	/*  for sockets. */
 #define F_SETSIG	13	/*  for sockets. */
 #define F_GETSIG	14	/*  for sockets. */
-#define F_GETOWN_EX	15
-#define F_SETOWN_EX	16
 
 /* for posix fcntl() and lockf() */
 #define F_RDLCK		01
diff --git a/arch/parisc/include/asm/fixmap.h b/arch/parisc/include/asm/fixmap.h
index de3fe3a1822..6fec4d4a1a1 100644
--- a/arch/parisc/include/asm/fixmap.h
+++ b/arch/parisc/include/asm/fixmap.h
@@ -21,9 +21,9 @@
 #define KERNEL_MAP_END		(TMPALIAS_MAP_START)
 
 #ifndef __ASSEMBLY__
-extern void *vmalloc_start;
+extern void *parisc_vmalloc_start;
 #define PCXL_DMA_MAP_SIZE	(8*1024*1024)
-#define VMALLOC_START		((unsigned long)vmalloc_start)
+#define VMALLOC_START		((unsigned long)parisc_vmalloc_start)
 #define VMALLOC_END		(KERNEL_MAP_END)
 #endif /*__ASSEMBLY__*/
 
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index 2fa05dd6aee..72c0fafaa03 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -20,6 +20,20 @@ struct ftrace_ret_stack {
  * Defined in entry.S
  */
 extern void return_to_handler(void);
+
+
+extern unsigned long return_address(unsigned int);
+
+#define HAVE_ARCH_CALLER_ADDR
+
+#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
+#define CALLER_ADDR1 return_address(1)
+#define CALLER_ADDR2 return_address(2)
+#define CALLER_ADDR3 return_address(3)
+#define CALLER_ADDR4 return_address(4)
+#define CALLER_ADDR5 return_address(5)
+#define CALLER_ADDR6 return_address(6)
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_PARISC_FTRACE_H */
diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index ce93133d511..0d68184a76c 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -1,29 +1,11 @@
 /* hardirq.h: PA-RISC hard IRQ support.
  *
  * Copyright (C) 2001 Matthew Wilcox <matthew@wil.cx>
- *
- * The locking is really quite interesting.  There's a cpu-local
- * count of how many interrupts are being handled, and a global
- * lock.  An interrupt can only be serviced if the global lock
- * is free.  You can't be sure no more interrupts are being
- * serviced until you've acquired the lock and then checked
- * all the per-cpu interrupt counts are all zero.  It's a specialised
- * br_lock, and that's exactly how Sparc does it.  We don't because
- * it's more locking for us.  This way is lock-free in the interrupt path.
  */
 
 #ifndef _PARISC_HARDIRQ_H
 #define _PARISC_HARDIRQ_H
 
-#include <linux/threads.h>
-#include <linux/irq.h>
-
-typedef struct {
-	unsigned long __softirq_pending; /* set_bit is used on this */
-} ____cacheline_aligned irq_cpustat_t;
-
-#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
-
-void ack_bad_irq(unsigned int irq);
+#include <asm-generic/hardirq.h>
 
 #endif /* _PARISC_HARDIRQ_H */
diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 302f68dc889..aead40b16dd 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -59,8 +59,11 @@ void user_enable_block_step(struct task_struct *task);
 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
 #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
 #define instruction_pointer(regs)	((regs)->iaoq[0] & ~3)
+#define user_stack_pointer(regs)	((regs)->gr[30])
 unsigned long profile_pc(struct pt_regs *);
 extern void show_regs(struct pt_regs *);
-#endif
+
+
+#endif /* __KERNEL__ */
 
 #endif
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index 960b1e5d8e1..225b7d6a1a0 100644
--- a/arch/parisc/include/asm/socket.h
+++ b/arch/parisc/include/asm/socket.h
@@ -59,6 +59,8 @@
 #define SO_TIMESTAMPING		0x4020
 #define SCM_TIMESTAMPING	SO_TIMESTAMPING
 
+#define SO_RXQ_OVFL             0x4021
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index fae03e136fa..74036f436a3 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -5,17 +5,17 @@
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
 
-static inline int __raw_spin_is_locked(raw_spinlock_t *x)
+static inline int arch_spin_is_locked(arch_spinlock_t *x)
 {
 	volatile unsigned int *a = __ldcw_align(x);
 	return *a == 0;
 }
 
-#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0)
-#define __raw_spin_unlock_wait(x) \
-		do { cpu_relax(); } while (__raw_spin_is_locked(x))
+#define arch_spin_lock(lock) arch_spin_lock_flags(lock, 0)
+#define arch_spin_unlock_wait(x) \
+		do { cpu_relax(); } while (arch_spin_is_locked(x))
 
-static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
+static inline void arch_spin_lock_flags(arch_spinlock_t *x,
 					 unsigned long flags)
 {
 	volatile unsigned int *a;
@@ -33,7 +33,7 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
 	mb();
 }
 
-static inline void __raw_spin_unlock(raw_spinlock_t *x)
+static inline void arch_spin_unlock(arch_spinlock_t *x)
 {
 	volatile unsigned int *a;
 	mb();
@@ -42,7 +42,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *x)
 	mb();
 }
 
-static inline int __raw_spin_trylock(raw_spinlock_t *x)
+static inline int arch_spin_trylock(arch_spinlock_t *x)
 {
 	volatile unsigned int *a;
 	int ret;
@@ -69,38 +69,38 @@ static inline int __raw_spin_trylock(raw_spinlock_t *x)
 
 /* Note that we have to ensure interrupts are disabled in case we're
  * interrupted by some other code that wants to grab the same read lock */
-static  __inline__ void __raw_read_lock(raw_rwlock_t *rw)
+static  __inline__ void arch_read_lock(arch_rwlock_t *rw)
 {
 	unsigned long flags;
 	local_irq_save(flags);
-	__raw_spin_lock_flags(&rw->lock, flags);
+	arch_spin_lock_flags(&rw->lock, flags);
 	rw->counter++;
-	__raw_spin_unlock(&rw->lock);
+	arch_spin_unlock(&rw->lock);
 	local_irq_restore(flags);
 }
 
 /* Note that we have to ensure interrupts are disabled in case we're
  * interrupted by some other code that wants to grab the same read lock */
-static  __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
+static  __inline__ void arch_read_unlock(arch_rwlock_t *rw)
 {
 	unsigned long flags;
 	local_irq_save(flags);
-	__raw_spin_lock_flags(&rw->lock, flags);
+	arch_spin_lock_flags(&rw->lock, flags);
 	rw->counter--;
-	__raw_spin_unlock(&rw->lock);
+	arch_spin_unlock(&rw->lock);
 	local_irq_restore(flags);
 }
 
 /* Note that we have to ensure interrupts are disabled in case we're
  * interrupted by some other code that wants to grab the same read lock */
-static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
+static __inline__ int arch_read_trylock(arch_rwlock_t *rw)
 {
 	unsigned long flags;
  retry:
 	local_irq_save(flags);
-	if (__raw_spin_trylock(&rw->lock)) {
+	if (arch_spin_trylock(&rw->lock)) {
 		rw->counter++;
-		__raw_spin_unlock(&rw->lock);
+		arch_spin_unlock(&rw->lock);
 		local_irq_restore(flags);
 		return 1;
 	}
@@ -111,7 +111,7 @@ static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
 		return 0;
 
 	/* Wait until we have a realistic chance at the lock */
-	while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0)
+	while (arch_spin_is_locked(&rw->lock) && rw->counter >= 0)
 		cpu_relax();
 
 	goto retry;
@@ -119,15 +119,15 @@ static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
 
 /* Note that we have to ensure interrupts are disabled in case we're
  * interrupted by some other code that wants to read_trylock() this lock */
-static __inline__ void __raw_write_lock(raw_rwlock_t *rw)
+static __inline__ void arch_write_lock(arch_rwlock_t *rw)
 {
 	unsigned long flags;
 retry:
 	local_irq_save(flags);
-	__raw_spin_lock_flags(&rw->lock, flags);
+	arch_spin_lock_flags(&rw->lock, flags);
 
 	if (rw->counter != 0) {
-		__raw_spin_unlock(&rw->lock);
+		arch_spin_unlock(&rw->lock);
 		local_irq_restore(flags);
 
 		while (rw->counter != 0)
@@ -141,27 +141,27 @@ retry:
 	local_irq_restore(flags);
 }
 
-static __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
+static __inline__ void arch_write_unlock(arch_rwlock_t *rw)
 {
 	rw->counter = 0;
-	__raw_spin_unlock(&rw->lock);
+	arch_spin_unlock(&rw->lock);
 }
 
 /* Note that we have to ensure interrupts are disabled in case we're
  * interrupted by some other code that wants to read_trylock() this lock */
-static __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
+static __inline__ int arch_write_trylock(arch_rwlock_t *rw)
 {
 	unsigned long flags;
 	int result = 0;
 
 	local_irq_save(flags);
-	if (__raw_spin_trylock(&rw->lock)) {
+	if (arch_spin_trylock(&rw->lock)) {
 		if (rw->counter == 0) {
 			rw->counter = -1;
 			result = 1;
 		} else {
 			/* Read-locked.  Oh well. */
-			__raw_spin_unlock(&rw->lock);
+			arch_spin_unlock(&rw->lock);
 		}
 	}
 	local_irq_restore(flags);
@@ -173,7 +173,7 @@ static __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
  * read_can_lock - would read_trylock() succeed?
  * @lock: the rwlock in question.
  */
-static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
+static __inline__ int arch_read_can_lock(arch_rwlock_t *rw)
 {
 	return rw->counter >= 0;
 }
@@ -182,16 +182,16 @@ static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
  * write_can_lock - would write_trylock() succeed?
  * @lock: the rwlock in question.
  */
-static __inline__ int __raw_write_can_lock(raw_rwlock_t *rw)
+static __inline__ int arch_write_can_lock(arch_rwlock_t *rw)
 {
 	return !rw->counter;
 }
 
-#define __raw_read_lock_flags(lock, flags) __raw_read_lock(lock)
-#define __raw_write_lock_flags(lock, flags) __raw_write_lock(lock)
+#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
+#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
 
-#define _raw_spin_relax(lock)	cpu_relax()
-#define _raw_read_relax(lock)	cpu_relax()
-#define _raw_write_relax(lock)	cpu_relax()
+#define arch_spin_relax(lock)	cpu_relax()
+#define arch_read_relax(lock)	cpu_relax()
+#define arch_write_relax(lock)	cpu_relax()
 
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/parisc/include/asm/spinlock_types.h b/arch/parisc/include/asm/spinlock_types.h
index 3f72f47cf4b..8c373aa28a8 100644
--- a/arch/parisc/include/asm/spinlock_types.h
+++ b/arch/parisc/include/asm/spinlock_types.h
@@ -4,18 +4,18 @@
 typedef struct {
 #ifdef CONFIG_PA20
 	volatile unsigned int slock;
-# define __RAW_SPIN_LOCK_UNLOCKED { 1 }
+# define __ARCH_SPIN_LOCK_UNLOCKED { 1 }
 #else
 	volatile unsigned int lock[4];
-# define __RAW_SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }
+# define __ARCH_SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }
 #endif
-} raw_spinlock_t;
+} arch_spinlock_t;
 
 typedef struct {
-	raw_spinlock_t lock;
+	arch_spinlock_t lock;
 	volatile int counter;
-} raw_rwlock_t;
+} arch_rwlock_t;
 
-#define __RAW_RW_LOCK_UNLOCKED		{ __RAW_SPIN_LOCK_UNLOCKED, 0 }
+#define __ARCH_RW_LOCK_UNLOCKED		{ __ARCH_SPIN_LOCK_UNLOCKED, 0 }
 
 #endif
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
new file mode 100644
index 00000000000..8bdfd2c8c39
--- /dev/null
+++ b/arch/parisc/include/asm/syscall.h
@@ -0,0 +1,40 @@
+/* syscall.h */
+
+#ifndef _ASM_PARISC_SYSCALL_H_
+#define _ASM_PARISC_SYSCALL_H_
+
+#include <linux/err.h>
+#include <asm/ptrace.h>
+
+static inline long syscall_get_nr(struct task_struct *tsk,
+				  struct pt_regs *regs)
+{
+	return regs->gr[20];
+}
+
+static inline void syscall_get_arguments(struct task_struct *tsk,
+					 struct pt_regs *regs, unsigned int i,
+					 unsigned int n, unsigned long *args)
+{
+	BUG_ON(i);
+
+	switch (n) {
+	case 6:
+		args[5] = regs->gr[21];
+	case 5:
+		args[4] = regs->gr[22];
+	case 4:
+		args[3] = regs->gr[23];
+	case 3:
+		args[2] = regs->gr[24];
+	case 2:
+		args[1] = regs->gr[25];
+	case 1:
+		args[0] = regs->gr[26];
+		break;
+	default:
+		BUG();
+	}
+}
+
+#endif /*_ASM_PARISC_SYSCALL_H_*/
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index ac775a76bff..7ecc1039cfe 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -32,6 +32,11 @@ struct thread_info {
 #define init_thread_info        (init_thread_union.thread_info)
 #define init_stack              (init_thread_union.stack)
 
+/* how to get the thread information struct from C */
+#define current_thread_info()	((struct thread_info *)mfctl(30))
+
+#endif /* !__ASSEMBLY */
+
 /* thread information allocation */
 
 #define THREAD_SIZE_ORDER            2
@@ -40,11 +45,6 @@ struct thread_info {
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
 
-/* how to get the thread information struct from C */
-#define current_thread_info()	((struct thread_info *)mfctl(30))
-
-#endif /* !__ASSEMBLY */
-
 #define PREEMPT_ACTIVE_BIT	28
 #define PREEMPT_ACTIVE		(1 << PREEMPT_ACTIVE_BIT)
 
@@ -60,6 +60,8 @@ struct thread_info {
 #define TIF_RESTORE_SIGMASK	6	/* restore saved signal mask */
 #define TIF_FREEZE		7	/* is freezing for suspend */
 #define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
+#define TIF_SINGLESTEP		9	/* single stepping? */
+#define TIF_BLOCKSTEP		10	/* branch stepping? */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
@@ -69,6 +71,8 @@ struct thread_info {
 #define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
 #define _TIF_FREEZE		(1 << TIF_FREEZE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
+#define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
+#define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
 
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 699cf8ef211..ec787b411e9 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -244,9 +244,6 @@ int main(void)
 	DEFINE(THREAD_SZ, sizeof(struct thread_info));
 	DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
 	BLANK();
-	DEFINE(IRQSTAT_SIRQ_PEND, offsetof(irq_cpustat_t, __softirq_pending));
-	DEFINE(IRQSTAT_SZ, sizeof(irq_cpustat_t));
-	BLANK();
 	DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
 	DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));
 	DEFINE(ICACHE_COUNT, offsetof(struct pdc_cache_info, ic_count));
@@ -270,8 +267,8 @@ int main(void)
 	DEFINE(DTLB_OFF_COUNT, offsetof(struct pdc_cache_info, dt_off_count));
 	DEFINE(DTLB_LOOP, offsetof(struct pdc_cache_info, dt_loop));
 	BLANK();
-	DEFINE(PA_BLOCKSTEP_BIT, 31-PT_BLOCKSTEP_BIT);
-	DEFINE(PA_SINGLESTEP_BIT, 31-PT_SINGLESTEP_BIT);
+	DEFINE(TIF_BLOCKSTEP_PA_BIT, 31-TIF_BLOCKSTEP);
+	DEFINE(TIF_SINGLESTEP_PA_BIT, 31-TIF_SINGLESTEP);
 	BLANK();
 	DEFINE(ASM_PMD_SHIFT, PMD_SHIFT);
 	DEFINE(ASM_PGDIR_SHIFT, PGDIR_SHIFT);
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 8c4712b74dc..3a44f7f704f 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2047,12 +2047,13 @@ syscall_do_signal:
 	b,n     syscall_check_sig
 
 syscall_restore:
-	/* Are we being ptraced? */
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 
-	ldw	TASK_PTRACE(%r1), %r19
-	bb,<	%r19,31,syscall_restore_rfi
-	nop
+	/* Are we being ptraced? */
+	ldw	TASK_FLAGS(%r1),%r19
+	ldi	(_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+	and,COND(=)	%r19,%r2,%r0
+	b,n	syscall_restore_rfi
 
 	ldo	TASK_PT_FR31(%r1),%r19		   /* reload fpregs */
 	rest_fp	%r19
@@ -2113,16 +2114,16 @@ syscall_restore_rfi:
 	ldi	0x0b,%r20			   /* Create new PSW */
 	depi	-1,13,1,%r20			   /* C, Q, D, and I bits */
 
-	/* The values of PA_SINGLESTEP_BIT and PA_BLOCKSTEP_BIT are
-	 * set in include/linux/ptrace.h and converted to PA bitmap
+	/* The values of SINGLESTEP_BIT and BLOCKSTEP_BIT are
+	 * set in thread_info.h and converted to PA bitmap
 	 * numbers in asm-offsets.c */
 
-	/* if ((%r19.PA_SINGLESTEP_BIT)) { %r20.27=1} */
-	extru,=	%r19,PA_SINGLESTEP_BIT,1,%r0
+	/* if ((%r19.SINGLESTEP_BIT)) { %r20.27=1} */
+	extru,=	%r19,TIF_SINGLESTEP_PA_BIT,1,%r0
 	depi	-1,27,1,%r20			   /* R bit */
 
-	/* if ((%r19.PA_BLOCKSTEP_BIT)) { %r20.7=1} */
-	extru,= %r19,PA_BLOCKSTEP_BIT,1,%r0
+	/* if ((%r19.BLOCKSTEP_BIT)) { %r20.7=1} */
+	extru,= %r19,TIF_BLOCKSTEP_PA_BIT,1,%r0
 	depi	-1,7,1,%r20			   /* T bit */
 
 	STREG	%r20,TASK_PT_PSW(%r1)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 330f536a932..efbcee5d222 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -145,7 +145,7 @@ static int cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
 #endif
 
 static struct irq_chip cpu_interrupt_type = {
-	.typename	= "CPU",
+	.name		= "CPU",
 	.startup	= cpu_startup_irq,
 	.shutdown	= cpu_disable_irq,
 	.enable		= cpu_enable_irq,
@@ -180,7 +180,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	if (i < NR_IRQS) {
 		struct irqaction *action;
 
-		spin_lock_irqsave(&irq_desc[i].lock, flags);
+		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
 		action = irq_desc[i].action;
 		if (!action)
 			goto skip;
@@ -192,7 +192,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #endif
 
-		seq_printf(p, " %14s", irq_desc[i].chip->typename);
+		seq_printf(p, " %14s", irq_desc[i].chip->name);
 #ifndef PARISC_IRQ_CR16_COUNTS
 		seq_printf(p, "  %s", action->name);
 
@@ -224,7 +224,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
 		seq_putc(p, '\n');
  skip:
-		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
 	}
 
 	return 0;
@@ -423,8 +423,3 @@ void __init init_IRQ(void)
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
 
 }
-
-void ack_bad_irq(unsigned int irq)
-{
-	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
-}
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 61ee0eec4e6..212074653df 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -893,7 +893,7 @@ int module_finalize(const Elf_Ehdr *hdr,
 	 * ourselves */
 	for (i = 1; i < hdr->e_shnum; i++) {
 		if(sechdrs[i].sh_type == SHT_SYMTAB
-		   && (sechdrs[i].sh_type & SHF_ALLOC)) {
+		   && (sechdrs[i].sh_flags & SHF_ALLOC)) {
 			int strindex = sechdrs[i].sh_link;
 			/* FIXME: AWFUL HACK
 			 * The cast is to drop the const from
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 75099efb3bf..f9f6783e4bd 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -24,7 +24,7 @@
  *
  *  This driver programs the PCX-U/PCX-W performance counters
  *  on the PA-RISC 2.0 chips.  The driver keeps all images now
- *  internally to the kernel to hopefully eliminate the possiblity
+ *  internally to the kernel to hopefully eliminate the possibility
  *  of a bad image halting the CPU.  Also, there are different
  *  images for the PCX-W and later chips vs the PCX-U chips.
  *
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 927db3668b6..c4f49e45129 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -13,6 +13,7 @@
 #include <linux/smp.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
+#include <linux/tracehook.h>
 #include <linux/user.h>
 #include <linux/personality.h>
 #include <linux/security.h>
@@ -35,7 +36,8 @@
  */
 void ptrace_disable(struct task_struct *task)
 {
-	task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
+	clear_tsk_thread_flag(task, TIF_SINGLESTEP);
+	clear_tsk_thread_flag(task, TIF_BLOCKSTEP);
 
 	/* make sure the trap bits are not set */
 	pa_psw(task)->r = 0;
@@ -55,8 +57,8 @@ void user_disable_single_step(struct task_struct *task)
 
 void user_enable_single_step(struct task_struct *task)
 {
-	task->ptrace &= ~PT_BLOCKSTEP;
-	task->ptrace |= PT_SINGLESTEP;
+	clear_tsk_thread_flag(task, TIF_BLOCKSTEP);
+	set_tsk_thread_flag(task, TIF_SINGLESTEP);
 
 	if (pa_psw(task)->n) {
 		struct siginfo si;
@@ -98,8 +100,8 @@ void user_enable_single_step(struct task_struct *task)
 
 void user_enable_block_step(struct task_struct *task)
 {
-	task->ptrace &= ~PT_SINGLESTEP;
-	task->ptrace |= PT_BLOCKSTEP;
+	clear_tsk_thread_flag(task, TIF_SINGLESTEP);
+	set_tsk_thread_flag(task, TIF_BLOCKSTEP);
 
 	/* Enable taken branch trap. */
 	pa_psw(task)->r = 0;
@@ -263,22 +265,20 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 }
 #endif
 
+long do_syscall_trace_enter(struct pt_regs *regs)
+{
+	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    tracehook_report_syscall_entry(regs))
+		return -1L;
+
+	return regs->gr[20];
+}
 
-void syscall_trace(void)
+void do_syscall_trace_exit(struct pt_regs *regs)
 {
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
-	if (!(current->ptrace & PT_PTRACED))
-		return;
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				 ? 0x80 : 0));
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
+	int stepping = test_thread_flag(TIF_SINGLESTEP) ||
+		test_thread_flag(TIF_BLOCKSTEP);
+
+	if (stepping || test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall_exit(regs, stepping);
 }
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 8eb3c63c407..fb37ac52e46 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -21,11 +21,11 @@
 #include <linux/errno.h>
 #include <linux/wait.h>
 #include <linux/ptrace.h>
+#include <linux/tracehook.h>
 #include <linux/unistd.h>
 #include <linux/stddef.h>
 #include <linux/compat.h>
 #include <linux/elf.h>
-#include <linux/tracehook.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
@@ -34,7 +34,6 @@
 #include <asm/asm-offsets.h>
 
 #ifdef CONFIG_COMPAT
-#include <linux/compat.h>
 #include "signal32.h"
 #endif
 
@@ -468,6 +467,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 		sigaddset(&current->blocked,sig);
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
+
+	tracehook_signal_handler(sig, info, ka, regs, 0);
+
 	return 1;
 }
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 1fd0f0cec03..3f2fce8ce6b 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -60,8 +60,6 @@ static int smp_debug_lvl = 0;
 #define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
-DEFINE_SPINLOCK(smp_lock);
-
 volatile struct task_struct *smp_init_current_idle_task;
 
 /* track which CPU is booting */
@@ -69,7 +67,7 @@ static volatile int cpu_now_booting __cpuinitdata;
 
 static int parisc_max_cpus __cpuinitdata = 1;
 
-DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
+static DEFINE_PER_CPU(spinlock_t, ipi_lock);
 
 enum ipi_message_type {
 	IPI_NOP=0,
@@ -438,6 +436,11 @@ void __init smp_prepare_boot_cpu(void)
 */
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		spin_lock_init(&per_cpu(ipi_lock, cpu));
+
 	init_cpu_present(cpumask_of(0));
 
 	parisc_max_cpus = max_cpus;
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 71b31957c8f..9147391afb0 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -110,37 +110,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	return addr;
 }
 
-static unsigned long do_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags, unsigned long fd,
-	unsigned long pgoff)
-{
-	struct file * file = NULL;
-	unsigned long error = -EBADF;
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file != NULL)
-		fput(file);
-out:
-	return error;
-}
-
 asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
 	unsigned long pgoff)
 {
 	/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
 	   we have. */
-	return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12));
+	return sys_mmap_pgoff(addr, len, prot, flags, fd,
+			      pgoff >> (PAGE_SHIFT - 12));
 }
 
 asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
@@ -148,7 +125,8 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
 		unsigned long offset)
 {
 	if (!(offset & ~PAGE_MASK)) {
-		return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
+		return sys_mmap_pgoff(addr, len, prot, flags, fd,
+					offset >> PAGE_SHIFT);
 	} else {
 		return -EINVAL;
 	}
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 561388b17c9..9779ece2b07 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -26,13 +26,7 @@
 #include <linux/shm.h>
 #include <linux/slab.h>
 #include <linux/uio.h>
-#include <linux/nfs_fs.h>
 #include <linux/ncp_fs.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr.h>
-#include <linux/nfsd/syscall.h>
 #include <linux/poll.h>
 #include <linux/personality.h>
 #include <linux/stat.h>
@@ -90,77 +84,6 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
     return -ENOSYS;
 }
 
-#ifdef CONFIG_SYSCTL
-
-struct __sysctl_args32 {
-	u32 name;
-	int nlen;
-	u32 oldval;
-	u32 oldlenp;
-	u32 newval;
-	u32 newlen;
-	u32 __unused[4];
-};
-
-asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
-{
-#ifndef CONFIG_SYSCTL_SYSCALL
-	return -ENOSYS;
-#else
-	struct __sysctl_args32 tmp;
-	int error;
-	unsigned int oldlen32;
-	size_t oldlen, __user *oldlenp = NULL;
-	unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
-
-	DBG(("sysctl32(%p)\n", args));
-
-	if (copy_from_user(&tmp, args, sizeof(tmp)))
-		return -EFAULT;
-
-	if (tmp.oldval && tmp.oldlenp) {
-		/* Duh, this is ugly and might not work if sysctl_args
-		   is in read-only memory, but do_sysctl does indirectly
-		   a lot of uaccess in both directions and we'd have to
-		   basically copy the whole sysctl.c here, and
-		   glibc's __sysctl uses rw memory for the structure
-		   anyway.  */
-		/* a possibly better hack than this, which will avoid the
-		 * problem if the struct is read only, is to push the
-		 * 'oldlen' value out to the user's stack instead. -PB
-		 */
-		if (get_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
-			return -EFAULT;
-		oldlen = oldlen32;
-		if (put_user(oldlen, (size_t *)addr))
-			return -EFAULT;
-		oldlenp = (size_t *)addr;
-	}
-
-	lock_kernel();
-	error = do_sysctl((int __user *)(u64)tmp.name, tmp.nlen,
-			  (void __user *)(u64)tmp.oldval, oldlenp,
-			  (void __user *)(u64)tmp.newval, tmp.newlen);
-	unlock_kernel();
-	if (oldlenp) {
-		if (!error) {
-			if (get_user(oldlen, (size_t *)addr)) {
-				error = -EFAULT;
-			} else {
-				oldlen32 = oldlen;
-				if (put_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
-					error = -EFAULT;
-			}
-		}
-		if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
-			error = -EFAULT;
-	}
-	return error;
-#endif
-}
-
-#endif /* CONFIG_SYSCTL */
-
 asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
 	struct compat_timespec __user *interval)
 {
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 59fc1a43ec3..f5f96021caa 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -288,18 +288,23 @@ tracesys:
 	STREG	%r18,PT_GR18(%r2)
 	/* Finished saving things for the debugger */
 
-	ldil	L%syscall_trace,%r1
+	copy	%r2,%r26
+	ldil	L%do_syscall_trace_enter,%r1
 	ldil	L%tracesys_next,%r2
-	be	R%syscall_trace(%sr7,%r1)
+	be	R%do_syscall_trace_enter(%sr7,%r1)
 	ldo	R%tracesys_next(%r2),%r2
 	
-tracesys_next:	
+tracesys_next:
+	/* do_syscall_trace_enter either returned the syscallno, or -1L,
+	 *  so we skip restoring the PT_GR20 below, since we pulled it from
+	 *  task->thread.regs.gr[20] above.
+	 */
+	copy	%ret0,%r20
 	ldil	L%sys_call_table,%r1
 	ldo     R%sys_call_table(%r1), %r19
 
 	ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	LDREG	TI_TASK(%r1), %r1
-	LDREG   TASK_PT_GR20(%r1), %r20
 	LDREG   TASK_PT_GR26(%r1), %r26		/* Restore the users args */
 	LDREG   TASK_PT_GR25(%r1), %r25
 	LDREG   TASK_PT_GR24(%r1), %r24
@@ -336,7 +341,8 @@ tracesys_exit:
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
-	bl	syscall_trace, %r2
+	ldo	TASK_REGS(%r1),%r26
+	bl	do_syscall_trace_exit,%r2
 	STREG   %r28,TASK_PT_GR28(%r1)          /* save return value now */
 	ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	LDREG	TI_TASK(%r1), %r1
@@ -353,12 +359,12 @@ tracesys_exit:
 
 tracesys_sigexit:
 	ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
-	LDREG	0(%r1), %r1
+	LDREG	TI_TASK(%r1), %r1
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
-	bl	syscall_trace, %r2
-	nop
+	bl	do_syscall_trace_exit,%r2
+	ldo	TASK_REGS(%r1),%r26
 
 	ldil	L%syscall_exit_rfi,%r1
 	be,n	R%syscall_exit_rfi(%sr7,%r1)
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 843f423dec6..01c4fcf8f48 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -234,7 +234,7 @@
 	ENTRY_SAME(getsid)
 	ENTRY_SAME(fdatasync)
 	/* struct __sysctl_args is a mess */
-	ENTRY_DIFF(sysctl)
+	ENTRY_COMP(sysctl)
 	ENTRY_SAME(mlock)		/* 150 */
 	ENTRY_SAME(munlock)
 	ENTRY_SAME(mlockall)
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a850a..d58eac1a828 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
+#include <linux/sort.h>
 
 #include <asm/uaccess.h>
 #include <asm/assembly.h>
@@ -28,7 +29,7 @@
 #define dbg(x...)
 #endif
 
-#define KERNEL_START (KERNEL_BINARY_TEXT_START - 0x1000)
+#define KERNEL_START (KERNEL_BINARY_TEXT_START)
 
 extern struct unwind_table_entry __start___unwind[];
 extern struct unwind_table_entry __stop___unwind[];
@@ -115,24 +116,18 @@ unwind_table_init(struct unwind_table *table, const char *name,
 	}
 }
 
+static int cmp_unwind_table_entry(const void *a, const void *b)
+{
+	return ((const struct unwind_table_entry *)a)->region_start
+	     - ((const struct unwind_table_entry *)b)->region_start;
+}
+
 static void
 unwind_table_sort(struct unwind_table_entry *start,
 		  struct unwind_table_entry *finish)
 {
-	struct unwind_table_entry el, *p, *q;
-
-	for (p = start + 1; p < finish; ++p) {
-		if (p[0].region_start < p[-1].region_start) {
-			el = *p;
-			q = p;
-			do {
-				q[0] = q[-1];
-				--q;
-			} while (q > start && 
-				 el.region_start < q[-1].region_start);
-			*q = el;
-		}
-	}
+	sort(start, finish - start, sizeof(struct unwind_table_entry),
+	     cmp_unwind_table_entry, NULL);
 }
 
 struct unwind_table *
@@ -417,3 +412,30 @@ int unwind_to_user(struct unwind_frame_info *info)
 
 	return ret;
 }
+
+unsigned long return_address(unsigned int level)
+{
+	struct unwind_frame_info info;
+	struct pt_regs r;
+	unsigned long sp;
+
+	/* initialize unwind info */
+	asm volatile ("copy %%r30, %0" : "=r"(sp));
+	memset(&r, 0, sizeof(struct pt_regs));
+	r.iaoq[0] = (unsigned long) current_text_addr();
+	r.gr[2] = (unsigned long) __builtin_return_address(0);
+	r.gr[30] = sp;
+	unwind_frame_init(&info, current, &r);
+
+	/* unwind stack */
+	++level;
+	do {
+		if (unwind_once(&info) < 0 || info.ip == 0)
+			return 0;
+		if (!__kernel_text_address(info.ip)) {
+			return 0;
+		}
+	} while (info.ip && level--);
+
+	return info.ip;
+}
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 775be2791bc..9dab4a4e09f 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -28,6 +28,7 @@
 #include <asm/cache.h>
 #include <asm/page.h>
 #include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
 	
 /* ld script to make hppa Linux kernel */
 #ifndef CONFIG_64BIT
@@ -77,9 +78,6 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	EXCEPTION_TABLE(16)
-
-	NOTES
 
 	/* unwind info */
 	.PARISC.unwind : {
@@ -88,6 +86,9 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
+	EXCEPTION_TABLE(16)
+	NOTES
+
 	/* Data */
 	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 
@@ -134,6 +135,15 @@ SECTIONS
 	__init_begin = .;
 	INIT_TEXT_SECTION(16384)
 	INIT_DATA_SECTION(16)
+	/* we have to discard exit text and such at runtime, not link time */
+	.exit.text :
+	{
+		EXIT_TEXT
+	}
+	.exit.data :
+	{
+		EXIT_DATA
+	}
 
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index e3eb739fab1..353963d4205 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -12,8 +12,8 @@
 #include <asm/atomic.h>
 
 #ifdef CONFIG_SMP
-raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
-	[0 ... (ATOMIC_HASH_SIZE-1)]  = __RAW_SPIN_LOCK_UNLOCKED
+arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
 #endif
 
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index d5aca31fddb..13b6e3e59b9 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -434,8 +434,8 @@ void mark_rodata_ro(void)
 #define SET_MAP_OFFSET(x) ((void *)(((unsigned long)(x) + VM_MAP_OFFSET) \
 				     & ~(VM_MAP_OFFSET-1)))
 
-void *vmalloc_start __read_mostly;
-EXPORT_SYMBOL(vmalloc_start);
+void *parisc_vmalloc_start __read_mostly;
+EXPORT_SYMBOL(parisc_vmalloc_start);
 
 #ifdef CONFIG_PA11
 unsigned long pcxl_dma_start __read_mostly;
@@ -496,13 +496,14 @@ void __init mem_init(void)
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
-		vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start + PCXL_DMA_MAP_SIZE);
+		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
+						+ PCXL_DMA_MAP_SIZE);
 	} else {
 		pcxl_dma_start = 0;
-		vmalloc_start = SET_MAP_OFFSET(MAP_START);
+		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 	}
 #else
-	vmalloc_start = SET_MAP_OFFSET(MAP_START);
+	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
 	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",