15 files changed, 112 insertions, 86 deletions

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/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/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/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/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/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/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/smp.c b/arch/parisc/kernel/smp.c
index 1fd0f0cec037..3f2fce8ce6b6 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_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 76d23ec8dfaa..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>
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