43 files changed, 230 insertions, 299 deletions

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 524d9352f17e..9c4da3d63bfb 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,7 +18,6 @@ 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,
@@ -96,6 +95,9 @@ config PM
 config STACKTRACE_SUPPORT
         def_bool y
 
+config NEED_DMA_MAP_STATE
+        def_bool y
+
 config ISA_DMA_API
         bool
 
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e522a04..7305ac8f7f5b 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,4 +12,18 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+        bool "Strict copy size checks"
+        depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+        ---help---
+          Enabling this option turns a certain set of sanity checks for user
+          copy operations into compile time failures.
+
+          The copy_from_user() etc checks are there to help test if there
+          are sufficient security checks on the length argument of
+          the copy operation, by having gcc prove that the argument is
+          within bounds.
+
+          If unsure, or if you run an older (pre 4.4) gcc, say N.
+
 endmenu
diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 54075360a8fd..6935123178eb 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -26,8 +26,8 @@
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include <linux/file.h>
-#include <linux/slab.h>
 #include <linux/ptrace.h>
+#include <linux/slab.h>
 #include <asm/errno.h>
 #include <asm/uaccess.h>
 
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index 18072e03a019..92343bd35fa3 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 000000000000..d370ee36a182
--- /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 8bc9e96699b2..716634d1f546 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 8cfc553fc837..75e46c557a16 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 724395143f26..477277739da5 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -38,10 +38,23 @@ void flush_cache_mm(struct mm_struct *mm);
 
 #define flush_kernel_dcache_range(start,size) \
         flush_kernel_dcache_range_asm((start), (start)+(size));
+/* vmap range flushes and invalidates.  Architecturally, we don't need
+ * the invalidate, because the CPU should refuse to speculate once an
+ * area has been flushed, so invalidate is left empty */
+static inline void flush_kernel_vmap_range(void *vaddr, int size)
+{
+        unsigned long start = (unsigned long)vaddr;
+
+        flush_kernel_dcache_range_asm(start, start + size);
+}
+static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+}
 
 #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/compat.h b/arch/parisc/include/asm/compat.h
index 7f32611a7a5e..02b77baa5da6 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -7,7 +7,8 @@
 #include <linux/sched.h>
 #include <linux/thread_info.h>
 
-#define COMPAT_USER_HZ 100
+#define COMPAT_USER_HZ          100
+#define COMPAT_UTS_MACHINE      "parisc\0\0"
 
 typedef u32     compat_size_t;
 typedef s32     compat_ssize_t;
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 9c802eb4be84..19f6cb1a4a1c 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 1e1c824764ee..f357fc693c89 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 */
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index 2fa05dd6aeee..72c0fafaa039 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/param.h b/arch/parisc/include/asm/param.h
index 32e03d877858..965d45427975 100644
--- a/arch/parisc/include/asm/param.h
+++ b/arch/parisc/include/asm/param.h
@@ -1,22 +1 @@
-#ifndef _ASMPARISC_PARAM_H
-#define _ASMPARISC_PARAM_H
-
-#ifdef __KERNEL__
-#define HZ              CONFIG_HZ
-#define USER_HZ         100             /* some user API use "ticks" */
-#define CLOCKS_PER_SEC  (USER_HZ)       /* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE   4096
-
-#ifndef NOGROUP
-#define NOGROUP         (-1)
-#endif
-
-#define MAXHOSTNAMELEN  64      /* max length of hostname */
-
-#endif
+#include <asm-generic/param.h>
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 64c7aa590ae5..2242a5c636c2 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -183,20 +183,6 @@ struct pci_bios_ops {
         void (*fixup_bus)(struct pci_bus *bus);
 };
 
-/* pci_unmap_{single,page} is not a nop, thus... */
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       \
-        dma_addr_t ADDR_NAME;
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         \
-        __u32 LEN_NAME;
-#define pci_unmap_addr(PTR, ADDR_NAME)                  \
-        ((PTR)->ADDR_NAME)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)         \
-        (((PTR)->ADDR_NAME) = (VAL))
-#define pci_unmap_len(PTR, LEN_NAME)                    \
-        ((PTR)->LEN_NAME)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL)           \
-        (((PTR)->LEN_NAME) = (VAL))
-
 /*
 ** Stuff declared in arch/parisc/kernel/pci.c
 */
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e200fb2..01c15035e783 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -410,7 +410,7 @@ extern void paging_init (void);
 
 #define PG_dcache_dirty         PG_arch_1
 
-extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
+extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *);
 
 /* Encode and de-code a swap entry */
 
diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index aead40b16dd8..7f09533da771 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -47,13 +47,8 @@ struct pt_regs {
 
 #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
 
-struct task_struct;
 #define arch_has_single_step()  1
-void user_disable_single_step(struct task_struct *task);
-void user_enable_single_step(struct task_struct *task);
-
 #define arch_has_block_step()   1
-void user_enable_block_step(struct task_struct *task);
 
 /* XXX should we use iaoq[1] or iaoq[0] ? */
 #define user_mode(regs)                 (((regs)->iaoq[0] & 3) ? 1 : 0)
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index 960b1e5d8e16..225b7d6a1a0a 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 fae03e136fa8..74036f436a3b 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 3f72f47cf4b2..8c373aa28a86 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/system.h b/arch/parisc/include/asm/system.h
index d91357bca5b4..4653c77bf9d1 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT     4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW  "ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 7cf799d70b4c..ff4cf9dab8d2 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -7,6 +7,7 @@
 #include <asm/page.h>
 #include <asm/system.h>
 #include <asm/cache.h>
+#include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
 #define VERIFY_READ 0
@@ -234,13 +235,35 @@ extern long lstrnlen_user(const char __user *,long);
 
 unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
 #define __copy_to_user copy_to_user
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
-#define __copy_from_user copy_from_user
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len);
 unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
 #define __copy_in_user copy_in_user
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
+extern void copy_from_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+        __compiletime_error("copy_from_user() buffer size is not provably correct")
+#else
+        __compiletime_warning("copy_from_user() buffer size is not provably correct")
+#endif
+;
+
+static inline unsigned long __must_check copy_from_user(void *to,
+                                          const void __user *from,
+                                          unsigned long n)
+{
+        int sz = __compiletime_object_size(to);
+        int ret = -EFAULT;
+
+        if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
+                ret = __copy_from_user(to, from, n);
+        else
+                copy_from_user_overflow();
+
+        return ret;
+}
+
 struct pt_regs;
 int fixup_exception(struct pt_regs *regs);
 
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index cda158318c62..1ce7d2851d90 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -811,8 +811,10 @@
 #define __NR_pwritev            (__NR_Linux + 316)
 #define __NR_rt_tgsigqueueinfo  (__NR_Linux + 317)
 #define __NR_perf_event_open    (__NR_Linux + 318)
+#define __NR_recvmmsg           (__NR_Linux + 319)
+#define __NR_accept4            (__NR_Linux + 320)
 
-#define __NR_Linux_syscalls     (__NR_perf_event_open + 1)
+#define __NR_Linux_syscalls     (__NR_accept4 + 1)
 
 
 #define __IGNORE_select         /* newselect */
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index fcd3c707bf12..ec787b411e9a 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));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34de14e1..d054f3da3ff5 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -68,9 +68,9 @@ flush_cache_all_local(void)
 EXPORT_SYMBOL(flush_cache_all_local);
 
 void
-update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
+update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-        struct page *page = pte_page(pte);
+        struct page *page = pte_page(*ptep);
 
         if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
             test_bit(PG_dcache_dirty, &page->flags)) {
@@ -171,14 +171,14 @@ parisc_cache_init(void)
                 cache_info.ic_conf.cc_cst,
                 cache_info.ic_conf.cc_hv);
 
-        printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+        printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
                 cache_info.dt_conf.tc_sh,
                 cache_info.dt_conf.tc_page,
                 cache_info.dt_conf.tc_cst,
                 cache_info.dt_conf.tc_aid,
                 cache_info.dt_conf.tc_pad1);
 
-        printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+        printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
                 cache_info.it_conf.tc_sh,
                 cache_info.it_conf.tc_page,
                 cache_info.it_conf.tc_cst,
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e7610cb33d5..efbcee5d2220 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;
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 212074653df7..159a2b81e90c 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -61,6 +61,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/slab.h>
 
 #include <asm/unwind.h>
 
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index c07f618ff7da..a029f74a3c5c 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -18,11 +18,11 @@
 */
 
 #include <linux/init.h>
+#include <linux/gfp.h>
 #include <linux/mm.h>
 #include <linux/pci.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-#include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/scatterlist.h>
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index f7064abc3bb6..9efd97405317 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -13,12 +13,10 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/pci.h>
-#include <linux/slab.h>
 #include <linux/types.h>
 
 #include <asm/io.h>
 #include <asm/system.h>
-#include <asm/cache.h>          /* for L1_CACHE_BYTES */
 #include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
@@ -123,6 +121,10 @@ static int __init pcibios_init(void)
         } else {
                 printk(KERN_WARNING "pci_bios != NULL but init() is!\n");
         }
+
+        /* Set the CLS for PCI as early as possible. */
+        pci_cache_line_size = pci_dfl_cache_line_size;
+
         return 0;
 }
 
@@ -171,7 +173,7 @@ void pcibios_set_master(struct pci_dev *dev)
         ** upper byte is PCI_LATENCY_TIMER.
         */
         pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
-                                (0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+                              (0x80 << 8) | pci_cache_line_size);
 }
 
 
@@ -254,10 +256,10 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
  * Since we are just checking candidates, don't use any fields other
  * than res->start.
  */
-void pcibios_align_resource(void *data, struct resource *res,
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
                                 resource_size_t size, resource_size_t alignment)
 {
-        resource_size_t mask, align;
+        resource_size_t mask, align, start = res->start;
 
         DBG_RES("pcibios_align_resource(%s, (%p) [%lx,%lx]/%x, 0x%lx, 0x%lx)\n",
                 pci_name(((struct pci_dev *) data)),
@@ -269,10 +271,10 @@ void pcibios_align_resource(void *data, struct resource *res,
 
         /* Align to largest of MIN or input size */
         mask = max(alignment, align) - 1;
-        res->start += mask;
-        res->start &= ~mask;
+        start += mask;
+        start &= ~mask;
 
-        /* The caller updates the end field, we don't.  */
+        return start;
 }
 
 
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 75099efb3bf3..f9f6783e4bdd 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/process.c b/arch/parisc/kernel/process.c
index 1f3aa8db0203..76332dadc6e9 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -43,6 +43,7 @@
 #include <linux/personality.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index e8467e4aa8d1..35c827e94e31 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -26,7 +26,6 @@
 #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>
@@ -469,7 +468,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 
-        tracehook_signal_handler(sig, info, ka, regs, 0);
+        tracehook_signal_handler(sig, info, ka, regs, 
+                test_thread_flag(TIF_SINGLESTEP) ||
+                test_thread_flag(TIF_BLOCKSTEP));
 
         return 1;
 }
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index fb59852006de..e14132430762 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -23,7 +23,6 @@
  */
 
 #include <linux/compat.h>
-#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/unistd.h>
 #include <linux/init.h>
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 1fd0f0cec037..69d63d354ef0 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -18,7 +18,6 @@
 */
 #include <linux/types.h>
 #include <linux/spinlock.h>
-#include <linux/slab.h>
 
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -60,8 +59,6 @@ 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 +66,7 @@ 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 +435,11 @@ 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 71b31957c8f1..c9b932260f47 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;
         }
@@ -256,18 +234,3 @@ long parisc_personality(unsigned long personality)
 
         return err;
 }
-
-long parisc_newuname(struct new_utsname __user *name)
-{
-        int err = sys_newuname(name);
-
-#ifdef CONFIG_COMPAT
-        if (!err && personality(current->personality) == PER_LINUX32) {
-                if (__put_user(0, name->machine + 6) ||
-                    __put_user(0, name->machine + 7))
-                        err = -EFAULT;
-        }
-#endif
-
-        return err;
-}
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 561388b17c91..9779ece2b070 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_table.S b/arch/parisc/kernel/syscall_table.S
index 843f423dec67..3d52c978738f 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -127,7 +127,7 @@
         ENTRY_SAME(socketpair)
         ENTRY_SAME(setpgid)
         ENTRY_SAME(send)
-        ENTRY_OURS(newuname)
+        ENTRY_SAME(newuname)
         ENTRY_SAME(umask)               /* 60 */
         ENTRY_SAME(chroot)
         ENTRY_COMP(ustat)
@@ -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)
@@ -417,6 +417,8 @@
         ENTRY_COMP(pwritev)
         ENTRY_COMP(rt_tgsigqueueinfo)
         ENTRY_SAME(perf_event_open)
+        ENTRY_COMP(recvmmsg)
+        ENTRY_SAME(accept4)             /* 320 */
 
         /* Nothing yet */
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index a79c6f9e7e2c..05511ccb61d2 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -250,9 +250,21 @@ static int __init rtc_init(void)
 }
 module_init(rtc_init);
 
-void __init time_init(void)
+void read_persistent_clock(struct timespec *ts)
 {
         static struct pdc_tod tod_data;
+        if (pdc_tod_read(&tod_data) == 0) {
+                ts->tv_sec = tod_data.tod_sec;
+                ts->tv_nsec = tod_data.tod_usec * 1000;
+        } else {
+                printk(KERN_ERR "Error reading tod clock\n");
+                ts->tv_sec = 0;
+                ts->tv_nsec = 0;
+        }
+}
+
+void __init time_init(void)
+{
         unsigned long current_cr16_khz;
 
         clocktick = (100 * PAGE0->mem_10msec) / HZ;
@@ -264,19 +276,4 @@ void __init time_init(void)
         clocksource_cr16.mult = clocksource_khz2mult(current_cr16_khz,
                                                 clocksource_cr16.shift);
         clocksource_register(&clocksource_cr16);
-
-        if (pdc_tod_read(&tod_data) == 0) {
-                unsigned long flags;
-
-                write_seqlock_irqsave(&xtime_lock, flags);
-                xtime.tv_sec = tod_data.tod_sec;
-                xtime.tv_nsec = tod_data.tod_usec * 1000;
-                set_normalized_timespec(&wall_to_monotonic,
-                                        -xtime.tv_sec, -xtime.tv_nsec);
-                write_sequnlock_irqrestore(&xtime_lock, flags);
-        } else {
-                printk(KERN_ERR "Error reading tod clock\n");
-                xtime.tv_sec = 0;
-                xtime.tv_nsec = 0;
-        }
 }
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index e6f4b7a4b7e3..92d977bb5ea8 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/signal.h>
+#include <linux/ratelimit.h>
 #include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */
@@ -446,8 +447,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 
 void handle_unaligned(struct pt_regs *regs)
 {
-        static unsigned long unaligned_count = 0;
-        static unsigned long last_time = 0;
+        static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
         unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
         int modify = 0;
         int ret = ERR_NOTHANDLED;
@@ -460,14 +460,8 @@ void handle_unaligned(struct pt_regs *regs)
                         goto force_sigbus;
                 }
 
-                if (unaligned_count > 5 &&
-                                time_after(jiffies, last_time + 5 * HZ)) {
-                        unaligned_count = 0;
-                        last_time = jiffies;
-                }
-
-                if (!(current->thread.flags & PARISC_UAC_NOPRINT) 
-                    && ++unaligned_count < 5) {
+                if (!(current->thread.flags & PARISC_UAC_NOPRINT) &&
+                        __ratelimit(&ratelimit)) {
                         char buf[256];
                         sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
                                 current->comm, task_pid_nr(current), regs->ior, regs->iaoq[0]);
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index a36799e85693..d58eac1a8288 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>
@@ -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/lib/bitops.c b/arch/parisc/lib/bitops.c
index e3eb739fab19..353963d42059 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/lib/fixup.S b/arch/parisc/lib/fixup.S
index d172d4245cdc..f8c45cc2947d 100644
--- a/arch/parisc/lib/fixup.S
+++ b/arch/parisc/lib/fixup.S
@@ -36,8 +36,8 @@
 #endif
         /* t2 = &__per_cpu_offset[smp_processor_id()]; */
         LDREGX \t2(\t1),\t2 
-        addil LT%per_cpu__exception_data,%r27
-        LDREG RT%per_cpu__exception_data(%r1),\t1
+        addil LT%exception_data,%r27
+        LDREG RT%exception_data(%r1),\t1
         /* t1 = &__get_cpu_var(exception_data) */
         add,l \t1,\t2,\t1
         /* t1 = t1->fault_ip */
@@ -46,8 +46,8 @@
 #else
         .macro  get_fault_ip t1 t2
         /* t1 = &__get_cpu_var(exception_data) */
-        addil LT%per_cpu__exception_data,%r27
-        LDREG RT%per_cpu__exception_data(%r1),\t2
+        addil LT%exception_data,%r27
+        LDREG RT%exception_data(%r1),\t2
         /* t1 = t2->fault_ip */
         LDREG EXCDATA_IP(\t2), \t1
         .endm
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index abf41f4632a9..1dbca5c31b3c 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -475,7 +475,8 @@ unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
         return pa_memcpy((void __force *)dst, src, len);
 }
 
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
+EXPORT_SYMBOL(__copy_from_user);
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len)
 {
         mtsp(get_user_space(), 1);
         mtsp(get_kernel_space(), 2);
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 13b6e3e59b99..f4f4d700833a 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/bootmem.h>
+#include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/pci.h>          /* for hppa_dma_ops and pcxl_dma_ops */