14 files changed, 250 insertions, 280 deletions

diff --git a/kernel/capability.c b/kernel/capability.c
index bfa3c92e16f2..1a4d8a40d3f9 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -233,3 +233,19 @@ out:
 
      return ret;
 }
+
+int __capable(struct task_struct *t, int cap)
+{
+	if (security_capable(t, cap) == 0) {
+		t->flags |= PF_SUPERPRIV;
+		return 1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(__capable);
+
+int capable(int cap)
+{
+	return __capable(current, cap);
+}
+EXPORT_SYMBOL(capable);
diff --git a/kernel/irq/Makefile b/kernel/irq/Makefile
index 49378738ff5e..2b33f852be3e 100644
--- a/kernel/irq/Makefile
+++ b/kernel/irq/Makefile
@@ -1,5 +1,4 @@
 
-obj-y := handle.o manage.o spurious.o
+obj-y := handle.o manage.o spurious.o migration.o
 obj-$(CONFIG_GENERIC_IRQ_PROBE) += autoprobe.o
 obj-$(CONFIG_PROC_FS) += proc.o
-
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 97d5559997d2..6edfcef291e8 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -204,10 +204,14 @@ int setup_irq(unsigned int irq, struct irqaction * new)
 	p = &desc->action;
 	if ((old = *p) != NULL) {
 		/* Can't share interrupts unless both agree to */
-		if (!(old->flags & new->flags & SA_SHIRQ)) {
-			spin_unlock_irqrestore(&desc->lock,flags);
-			return -EBUSY;
-		}
+		if (!(old->flags & new->flags & SA_SHIRQ))
+			goto mismatch;
+
+#if defined(ARCH_HAS_IRQ_PER_CPU) && defined(SA_PERCPU_IRQ)
+		/* All handlers must agree on per-cpuness */
+		if ((old->flags & IRQ_PER_CPU) != (new->flags & IRQ_PER_CPU))
+			goto mismatch;
+#endif
 
 		/* add new interrupt at end of irq queue */
 		do {
@@ -218,7 +222,10 @@ int setup_irq(unsigned int irq, struct irqaction * new)
 	}
 
 	*p = new;
-
+#if defined(ARCH_HAS_IRQ_PER_CPU) && defined(SA_PERCPU_IRQ)
+	if (new->flags & SA_PERCPU_IRQ)
+		desc->status |= IRQ_PER_CPU;
+#endif
 	if (!shared) {
 		desc->depth = 0;
 		desc->status &= ~(IRQ_DISABLED | IRQ_AUTODETECT |
@@ -236,6 +243,12 @@ int setup_irq(unsigned int irq, struct irqaction * new)
 	register_handler_proc(irq, new);
 
 	return 0;
+
+mismatch:
+	spin_unlock_irqrestore(&desc->lock, flags);
+	printk(KERN_ERR "%s: irq handler mismatch\n", __FUNCTION__);
+	dump_stack();
+	return -EBUSY;
 }
 
 /**
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
new file mode 100644
index 000000000000..52a8655fa080
--- /dev/null
+++ b/kernel/irq/migration.c
@@ -0,0 +1,65 @@
+#include <linux/irq.h>
+
+#if defined(CONFIG_GENERIC_PENDING_IRQ)
+
+void set_pending_irq(unsigned int irq, cpumask_t mask)
+{
+	irq_desc_t *desc = irq_desc + irq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&desc->lock, flags);
+	desc->move_irq = 1;
+	pending_irq_cpumask[irq] = mask;
+	spin_unlock_irqrestore(&desc->lock, flags);
+}
+
+void move_native_irq(int irq)
+{
+	cpumask_t tmp;
+	irq_desc_t *desc = irq_descp(irq);
+
+	if (likely(!desc->move_irq))
+		return;
+
+	/*
+	 * Paranoia: cpu-local interrupts shouldn't be calling in here anyway.
+	 */
+	if (CHECK_IRQ_PER_CPU(desc->status)) {
+		WARN_ON(1);
+		return;
+	}
+
+	desc->move_irq = 0;
+
+	if (likely(cpus_empty(pending_irq_cpumask[irq])))
+		return;
+
+	if (!desc->handler->set_affinity)
+		return;
+
+	assert_spin_locked(&desc->lock);
+
+	cpus_and(tmp, pending_irq_cpumask[irq], cpu_online_map);
+
+	/*
+	 * If there was a valid mask to work with, please
+	 * do the disable, re-program, enable sequence.
+	 * This is *not* particularly important for level triggered
+	 * but in a edge trigger case, we might be setting rte
+	 * when an active trigger is comming in. This could
+	 * cause some ioapics to mal-function.
+	 * Being paranoid i guess!
+	 */
+	if (unlikely(!cpus_empty(tmp))) {
+		if (likely(!(desc->status & IRQ_DISABLED)))
+			desc->handler->disable(irq);
+
+		desc->handler->set_affinity(irq,tmp);
+
+		if (likely(!(desc->status & IRQ_DISABLED)))
+			desc->handler->enable(irq);
+	}
+	cpus_clear(pending_irq_cpumask[irq]);
+}
+
+#endif
diff --git a/kernel/itimer.c b/kernel/itimer.c
index 379be2f8c84c..680e6b70c872 100644
--- a/kernel/itimer.c
+++ b/kernel/itimer.c
@@ -143,6 +143,60 @@ int it_real_fn(void *data)
 	return HRTIMER_NORESTART;
 }
 
+/*
+ * We do not care about correctness. We just sanitize the values so
+ * the ktime_t operations which expect normalized values do not
+ * break. This converts negative values to long timeouts similar to
+ * the code in kernel versions < 2.6.16
+ *
+ * Print a limited number of warning messages when an invalid timeval
+ * is detected.
+ */
+static void fixup_timeval(struct timeval *tv, int interval)
+{
+	static int warnlimit = 10;
+	unsigned long tmp;
+
+	if (warnlimit > 0) {
+		warnlimit--;
+		printk(KERN_WARNING
+		       "setitimer: %s (pid = %d) provided "
+		       "invalid timeval %s: tv_sec = %ld tv_usec = %ld\n",
+		       current->comm, current->pid,
+		       interval ? "it_interval" : "it_value",
+		       tv->tv_sec, (long) tv->tv_usec);
+	}
+
+	tmp = tv->tv_usec;
+	if (tmp >= USEC_PER_SEC) {
+		tv->tv_usec = tmp % USEC_PER_SEC;
+		tv->tv_sec += tmp / USEC_PER_SEC;
+	}
+
+	tmp = tv->tv_sec;
+	if (tmp > LONG_MAX)
+		tv->tv_sec = LONG_MAX;
+}
+
+/*
+ * Returns true if the timeval is in canonical form
+ */
+#define timeval_valid(t) \
+	(((t)->tv_sec >= 0) && (((unsigned long) (t)->tv_usec) < USEC_PER_SEC))
+
+/*
+ * Check for invalid timevals, sanitize them and print a limited
+ * number of warnings.
+ */
+static void check_itimerval(struct itimerval *value) {
+
+	if (unlikely(!timeval_valid(&value->it_value)))
+		fixup_timeval(&value->it_value, 0);
+
+	if (unlikely(!timeval_valid(&value->it_interval)))
+		fixup_timeval(&value->it_interval, 1);
+}
+
 int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue)
 {
 	struct task_struct *tsk = current;
@@ -150,6 +204,18 @@ int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue)
 	ktime_t expires;
 	cputime_t cval, cinterval, nval, ninterval;
 
+	/*
+	 * Validate the timevals in value.
+	 *
+	 * Note: Although the spec requires that invalid values shall
+	 * return -EINVAL, we just fixup the value and print a limited
+	 * number of warnings in order not to break users of this
+	 * historical misfeature.
+	 *
+	 * Scheduled for replacement in March 2007
+	 */
+	check_itimerval(value);
+
 	switch (which) {
 	case ITIMER_REAL:
 again:
@@ -226,6 +292,43 @@ again:
 	return 0;
 }
 
+/**
+ * alarm_setitimer - set alarm in seconds
+ *
+ * @seconds:	number of seconds until alarm
+ *		0 disables the alarm
+ *
+ * Returns the remaining time in seconds of a pending timer or 0 when
+ * the timer is not active.
+ *
+ * On 32 bit machines the seconds value is limited to (INT_MAX/2) to avoid
+ * negative timeval settings which would cause immediate expiry.
+ */
+unsigned int alarm_setitimer(unsigned int seconds)
+{
+	struct itimerval it_new, it_old;
+
+#if BITS_PER_LONG < 64
+	if (seconds > INT_MAX)
+		seconds = INT_MAX;
+#endif
+	it_new.it_value.tv_sec = seconds;
+	it_new.it_value.tv_usec = 0;
+	it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
+
+	do_setitimer(ITIMER_REAL, &it_new, &it_old);
+
+	/*
+	 * We can't return 0 if we have an alarm pending ...  And we'd
+	 * better return too much than too little anyway
+	 */
+	if ((!it_old.it_value.tv_sec && it_old.it_value.tv_usec) ||
+	      it_old.it_value.tv_usec >= 500000)
+		it_old.it_value.tv_sec++;
+
+	return it_old.it_value.tv_sec;
+}
+
 asmlinkage long sys_setitimer(int which,
 			      struct itimerval __user *value,
 			      struct itimerval __user *ovalue)
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 6a5373868a98..c5f3c6613b6d 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -115,7 +115,9 @@ static void keventd_create_kthread(void *_create)
 		create->result = ERR_PTR(pid);
 	} else {
 		wait_for_completion(&create->started);
+		read_lock(&tasklist_lock);
 		create->result = find_task_by_pid(pid);
+		read_unlock(&tasklist_lock);
 	}
 	complete(&create->done);
 }
diff --git a/kernel/module.c b/kernel/module.c
index 54623c714bba..ddfe45ac2fd1 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -233,24 +233,6 @@ static unsigned long __find_symbol(const char *name,
  	return 0;
 }
 
-/* Find a symbol in this elf symbol table */
-static unsigned long find_local_symbol(Elf_Shdr *sechdrs,
-				       unsigned int symindex,
-				       const char *strtab,
-				       const char *name)
-{
-	unsigned int i;
-	Elf_Sym *sym = (void *)sechdrs[symindex].sh_addr;
-
-	/* Search (defined) internal symbols first. */
-	for (i = 1; i < sechdrs[symindex].sh_size/sizeof(*sym); i++) {
-		if (sym[i].st_shndx != SHN_UNDEF
-		    && strcmp(name, strtab + sym[i].st_name) == 0)
-			return sym[i].st_value;
-	}
-	return 0;
-}
-
 /* Search for module by name: must hold module_mutex. */
 static struct module *find_module(const char *name)
 {
@@ -785,139 +767,6 @@ static struct module_attribute *modinfo_attrs[] = {
 	NULL,
 };
 
-#ifdef CONFIG_OBSOLETE_MODPARM
-/* Bounds checking done below */
-static int obsparm_copy_string(const char *val, struct kernel_param *kp)
-{
-	strcpy(kp->arg, val);
-	return 0;
-}
-
-static int set_obsolete(const char *val, struct kernel_param *kp)
-{
-	unsigned int min, max;
-	unsigned int size, maxsize;
-	int dummy;
-	char *endp;
-	const char *p;
-	struct obsolete_modparm *obsparm = kp->arg;
-
-	if (!val) {
-		printk(KERN_ERR "Parameter %s needs an argument\n", kp->name);
-		return -EINVAL;
-	}
-
-	/* type is: [min[-max]]{b,h,i,l,s} */
-	p = obsparm->type;
-	min = simple_strtol(p, &endp, 10);
-	if (endp == obsparm->type)
-		min = max = 1;
-	else if (*endp == '-') {
-		p = endp+1;
-		max = simple_strtol(p, &endp, 10);
-	} else
-		max = min;
-	switch (*endp) {
-	case 'b':
-		return param_array(kp->name, val, min, max, obsparm->addr,
-				   1, param_set_byte, &dummy);
-	case 'h':
-		return param_array(kp->name, val, min, max, obsparm->addr,
-				   sizeof(short), param_set_short, &dummy);
-	case 'i':
-		return param_array(kp->name, val, min, max, obsparm->addr,
-				   sizeof(int), param_set_int, &dummy);
-	case 'l':
-		return param_array(kp->name, val, min, max, obsparm->addr,
-				   sizeof(long), param_set_long, &dummy);
-	case 's':
-		return param_array(kp->name, val, min, max, obsparm->addr,
-				   sizeof(char *), param_set_charp, &dummy);
-
-	case 'c':
-		/* Undocumented: 1-5c50 means 1-5 strings of up to 49 chars,
-		   and the decl is "char xxx[5][50];" */
-		p = endp+1;
-		maxsize = simple_strtol(p, &endp, 10);
-		/* We check lengths here (yes, this is a hack). */
-		p = val;
-		while (p[size = strcspn(p, ",")]) {
-			if (size >= maxsize) 
-				goto oversize;
-			p += size+1;
-		}
-		if (size >= maxsize) 
-			goto oversize;
-		return param_array(kp->name, val, min, max, obsparm->addr,
-				   maxsize, obsparm_copy_string, &dummy);
-	}
-	printk(KERN_ERR "Unknown obsolete parameter type %s\n", obsparm->type);
-	return -EINVAL;
- oversize:
-	printk(KERN_ERR
-	       "Parameter %s doesn't fit in %u chars.\n", kp->name, maxsize);
-	return -EINVAL;
-}
-
-static int obsolete_params(const char *name,
-			   char *args,
-			   struct obsolete_modparm obsparm[],
-			   unsigned int num,
-			   Elf_Shdr *sechdrs,
-			   unsigned int symindex,
-			   const char *strtab)
-{
-	struct kernel_param *kp;
-	unsigned int i;
-	int ret;
-
-	kp = kmalloc(sizeof(kp[0]) * num, GFP_KERNEL);
-	if (!kp)
-		return -ENOMEM;
-
-	for (i = 0; i < num; i++) {
-		char sym_name[128 + sizeof(MODULE_SYMBOL_PREFIX)];
-
-		snprintf(sym_name, sizeof(sym_name), "%s%s",
-			 MODULE_SYMBOL_PREFIX, obsparm[i].name);
-
-		kp[i].name = obsparm[i].name;
-		kp[i].perm = 000;
-		kp[i].set = set_obsolete;
-		kp[i].get = NULL;
-		obsparm[i].addr
-			= (void *)find_local_symbol(sechdrs, symindex, strtab,
-						    sym_name);
-		if (!obsparm[i].addr) {
-			printk("%s: falsely claims to have parameter %s\n",
-			       name, obsparm[i].name);
-			ret = -EINVAL;
-			goto out;
-		}
-		kp[i].arg = &obsparm[i];
-	}
-
-	ret = parse_args(name, args, kp, num, NULL);
- out:
-	kfree(kp);
-	return ret;
-}
-#else
-static int obsolete_params(const char *name,
-			   char *args,
-			   struct obsolete_modparm obsparm[],
-			   unsigned int num,
-			   Elf_Shdr *sechdrs,
-			   unsigned int symindex,
-			   const char *strtab)
-{
-	if (num != 0)
-		printk(KERN_WARNING "%s: Ignoring obsolete parameters\n",
-		       name);
-	return 0;
-}
-#endif /* CONFIG_OBSOLETE_MODPARM */
-
 static const char vermagic[] = VERMAGIC_STRING;
 
 #ifdef CONFIG_MODVERSIONS
@@ -1874,27 +1723,17 @@ static struct module *load_module(void __user *umod,
 	set_fs(old_fs);
 
 	mod->args = args;
-	if (obsparmindex) {
-		err = obsolete_params(mod->name, mod->args,
-				      (struct obsolete_modparm *)
-				      sechdrs[obsparmindex].sh_addr,
-				      sechdrs[obsparmindex].sh_size
-				      / sizeof(struct obsolete_modparm),
-				      sechdrs, symindex,
-				      (char *)sechdrs[strindex].sh_addr);
-		if (setupindex)
-			printk(KERN_WARNING "%s: Ignoring new-style "
-			       "parameters in presence of obsolete ones\n",
-			       mod->name);
-	} else {
-		/* Size of section 0 is 0, so this works well if no params */
-		err = parse_args(mod->name, mod->args,
-				 (struct kernel_param *)
-				 sechdrs[setupindex].sh_addr,
-				 sechdrs[setupindex].sh_size
-				 / sizeof(struct kernel_param),
-				 NULL);
-	}
+	if (obsparmindex)
+		printk(KERN_WARNING "%s: Ignoring obsolete parameters\n",
+		       mod->name);
+
+	/* Size of section 0 is 0, so this works well if no params */
+	err = parse_args(mod->name, mod->args,
+			 (struct kernel_param *)
+			 sechdrs[setupindex].sh_addr,
+			 sechdrs[setupindex].sh_size
+			 / sizeof(struct kernel_param),
+			 NULL);
 	if (err < 0)
 		goto arch_cleanup;
 
diff --git a/kernel/params.c b/kernel/params.c
index a29150582310..9de637a5c8bc 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -265,12 +265,12 @@ int param_get_invbool(char *buffer, struct kernel_param *kp)
 }
 
 /* We cheat here and temporarily mangle the string. */
-int param_array(const char *name,
-		const char *val,
-		unsigned int min, unsigned int max,
-		void *elem, int elemsize,
-		int (*set)(const char *, struct kernel_param *kp),
-		int *num)
+static int param_array(const char *name,
+		       const char *val,
+		       unsigned int min, unsigned int max,
+		       void *elem, int elemsize,
+		       int (*set)(const char *, struct kernel_param *kp),
+		       int *num)
 {
 	int ret;
 	struct kernel_param kp;
diff --git a/kernel/power/smp.c b/kernel/power/smp.c
index 911fc62b8225..5957312b2d68 100644
--- a/kernel/power/smp.c
+++ b/kernel/power/smp.c
@@ -49,9 +49,7 @@ void enable_nonboot_cpus(void)
 
 	printk("Thawing cpus ...\n");
 	for_each_cpu_mask(cpu, frozen_cpus) {
-		error = smp_prepare_cpu(cpu);
-		if (!error)
-			error = cpu_up(cpu);
+		error = cpu_up(cpu);
 		if (!error) {
 			printk("CPU%d is up\n", cpu);
 			continue;
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 9a1fa8894b95..b4b362b5baf5 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -54,15 +54,15 @@ static int verbose;		/* Print more debug info. */
 static int test_no_idle_hz;	/* Test RCU's support for tickless idle CPUs. */
 static int shuffle_interval = 5; /* Interval between shuffles (in sec)*/
 
-MODULE_PARM(nreaders, "i");
+module_param(nreaders, int, 0);
 MODULE_PARM_DESC(nreaders, "Number of RCU reader threads");
-MODULE_PARM(stat_interval, "i");
+module_param(stat_interval, int, 0);
 MODULE_PARM_DESC(stat_interval, "Number of seconds between stats printk()s");
-MODULE_PARM(verbose, "i");
+module_param(verbose, bool, 0);
 MODULE_PARM_DESC(verbose, "Enable verbose debugging printk()s");
-MODULE_PARM(test_no_idle_hz, "i");
+module_param(test_no_idle_hz, bool, 0);
 MODULE_PARM_DESC(test_no_idle_hz, "Test support for tickless idle CPUs");
-MODULE_PARM(shuffle_interval, "i");
+module_param(shuffle_interval, int, 0);
 MODULE_PARM_DESC(shuffle_interval, "Number of seconds between shuffles");
 #define TORTURE_FLAG "rcutorture: "
 #define PRINTK_STRING(s) \
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index dd9524fa649a..d9b3d5847ed8 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -118,6 +118,7 @@ cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
 			printk("watchdog for %i failed\n", hotcpu);
 			return NOTIFY_BAD;
 		}
+  		per_cpu(touch_timestamp, hotcpu) = jiffies;
   		per_cpu(watchdog_task, hotcpu) = p;
 		kthread_bind(p, hotcpu);
  		break;
diff --git a/kernel/sys.c b/kernel/sys.c
index 19d058be49d4..38bc73ede2ba 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -224,18 +224,6 @@ int unregister_reboot_notifier(struct notifier_block * nb)
 
 EXPORT_SYMBOL(unregister_reboot_notifier);
 
-#ifndef CONFIG_SECURITY
-int capable(int cap)
-{
-        if (cap_raised(current->cap_effective, cap)) {
-	       current->flags |= PF_SUPERPRIV;
-	       return 1;
-        }
-        return 0;
-}
-EXPORT_SYMBOL(capable);
-#endif
-
 static int set_one_prio(struct task_struct *p, int niceval, int error)
 {
 	int no_nice;
@@ -1375,7 +1363,7 @@ static void groups_sort(struct group_info *group_info)
 /* a simple bsearch */
 int groups_search(struct group_info *group_info, gid_t grp)
 {
-	int left, right;
+	unsigned int left, right;
 
 	if (!group_info)
 		return 0;
@@ -1383,7 +1371,7 @@ int groups_search(struct group_info *group_info, gid_t grp)
 	left = 0;
 	right = group_info->ngroups;
 	while (left < right) {
-		int mid = (left+right)/2;
+		unsigned int mid = (left+right)/2;
 		int cmp = grp - GROUP_AT(group_info, mid);
 		if (cmp > 0)
 			left = mid + 1;
@@ -1433,7 +1421,6 @@ asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist)
 		return -EINVAL;
 
 	/* no need to grab task_lock here; it cannot change */
-	get_group_info(current->group_info);
 	i = current->group_info->ngroups;
 	if (gidsetsize) {
 		if (i > gidsetsize) {
@@ -1446,7 +1433,6 @@ asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist)
 		}
 	}
 out:
-	put_group_info(current->group_info);
 	return i;
 }
 
@@ -1487,9 +1473,7 @@ int in_group_p(gid_t grp)
 {
 	int retval = 1;
 	if (grp != current->fsgid) {
-		get_group_info(current->group_info);
 		retval = groups_search(current->group_info, grp);
-		put_group_info(current->group_info);
 	}
 	return retval;
 }
@@ -1500,9 +1484,7 @@ int in_egroup_p(gid_t grp)
 {
 	int retval = 1;
 	if (grp != current->egid) {
-		get_group_info(current->group_info);
 		retval = groups_search(current->group_info, grp);
-		put_group_info(current->group_info);
 	}
 	return retval;
 }
diff --git a/kernel/time.c b/kernel/time.c
index 804539165d8b..e00a97b77241 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -202,24 +202,6 @@ asmlinkage long sys_settimeofday(struct timeval __user *tv,
 	return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
 }
 
-long pps_offset;		/* pps time offset (us) */
-long pps_jitter = MAXTIME;	/* time dispersion (jitter) (us) */
-
-long pps_freq;			/* frequency offset (scaled ppm) */
-long pps_stabil = MAXFREQ;	/* frequency dispersion (scaled ppm) */
-
-long pps_valid = PPS_VALID;	/* pps signal watchdog counter */
-
-int pps_shift = PPS_SHIFT;	/* interval duration (s) (shift) */
-
-long pps_jitcnt;		/* jitter limit exceeded */
-long pps_calcnt;		/* calibration intervals */
-long pps_errcnt;		/* calibration errors */
-long pps_stbcnt;		/* stability limit exceeded */
-
-/* hook for a loadable hardpps kernel module */
-void (*hardpps_ptr)(struct timeval *);
-
 /* we call this to notify the arch when the clock is being
  * controlled.  If no such arch routine, do nothing.
  */
@@ -279,7 +261,7 @@ int do_adjtimex(struct timex *txc)
 		    result = -EINVAL;
 		    goto leave;
 		}
-		time_freq = txc->freq - pps_freq;
+		time_freq = txc->freq;
 	    }
 
 	    if (txc->modes & ADJ_MAXERROR) {
@@ -312,10 +294,8 @@ int do_adjtimex(struct timex *txc)
 		    if ((time_next_adjust = txc->offset) == 0)
 			 time_adjust = 0;
 		}
-		else if ( time_status & (STA_PLL | STA_PPSTIME) ) {
-		    ltemp = (time_status & (STA_PPSTIME | STA_PPSSIGNAL)) ==
-		            (STA_PPSTIME | STA_PPSSIGNAL) ?
-		            pps_offset : txc->offset;
+		else if (time_status & STA_PLL) {
+		    ltemp = txc->offset;
 
 		    /*
 		     * Scale the phase adjustment and
@@ -356,23 +336,14 @@ int do_adjtimex(struct timex *txc)
 		    }
 		    time_freq = min(time_freq, time_tolerance);
 		    time_freq = max(time_freq, -time_tolerance);
-		} /* STA_PLL || STA_PPSTIME */
+		} /* STA_PLL */
 	    } /* txc->modes & ADJ_OFFSET */
 	    if (txc->modes & ADJ_TICK) {
 		tick_usec = txc->tick;
 		tick_nsec = TICK_USEC_TO_NSEC(tick_usec);
 	    }
 	} /* txc->modes */
-leave:	if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0
-	    || ((time_status & (STA_PPSFREQ|STA_PPSTIME)) != 0
-		&& (time_status & STA_PPSSIGNAL) == 0)
-	    /* p. 24, (b) */
-	    || ((time_status & (STA_PPSTIME|STA_PPSJITTER))
-		== (STA_PPSTIME|STA_PPSJITTER))
-	    /* p. 24, (c) */
-	    || ((time_status & STA_PPSFREQ) != 0
-		&& (time_status & (STA_PPSWANDER|STA_PPSERROR)) != 0))
-	    /* p. 24, (d) */
+leave:	if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0)
 		result = TIME_ERROR;
 	
 	if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
@@ -380,7 +351,7 @@ leave:	if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0
 	else {
 	    txc->offset = shift_right(time_offset, SHIFT_UPDATE);
 	}
-	txc->freq	   = time_freq + pps_freq;
+	txc->freq	   = time_freq;
 	txc->maxerror	   = time_maxerror;
 	txc->esterror	   = time_esterror;
 	txc->status	   = time_status;
@@ -388,14 +359,16 @@ leave:	if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0
 	txc->precision	   = time_precision;
 	txc->tolerance	   = time_tolerance;
 	txc->tick	   = tick_usec;
-	txc->ppsfreq	   = pps_freq;
-	txc->jitter	   = pps_jitter >> PPS_AVG;
-	txc->shift	   = pps_shift;
-	txc->stabil	   = pps_stabil;
-	txc->jitcnt	   = pps_jitcnt;
-	txc->calcnt	   = pps_calcnt;
-	txc->errcnt	   = pps_errcnt;
-	txc->stbcnt	   = pps_stbcnt;
+
+	/* PPS is not implemented, so these are zero */
+	txc->ppsfreq	   = 0;
+	txc->jitter	   = 0;
+	txc->shift	   = 0;
+	txc->stabil	   = 0;
+	txc->jitcnt	   = 0;
+	txc->calcnt	   = 0;
+	txc->errcnt	   = 0;
+	txc->stbcnt	   = 0;
 	write_sequnlock_irq(&xtime_lock);
 	do_gettimeofday(&txc->time);
 	notify_arch_cmos_timer();
diff --git a/kernel/timer.c b/kernel/timer.c
index 17d956cebcb9..ab189dd187cb 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -697,18 +697,9 @@ static void second_overflow(void)
 
 	/*
 	 * Compute the frequency estimate and additional phase adjustment due
-	 * to frequency error for the next second. When the PPS signal is
-	 * engaged, gnaw on the watchdog counter and update the frequency
-	 * computed by the pll and the PPS signal.
+	 * to frequency error for the next second.
 	 */
-	pps_valid++;
-	if (pps_valid == PPS_VALID) {	/* PPS signal lost */
-		pps_jitter = MAXTIME;
-		pps_stabil = MAXFREQ;
-		time_status &= ~(STA_PPSSIGNAL | STA_PPSJITTER |
-				STA_PPSWANDER | STA_PPSERROR);
-	}
-	ltemp = time_freq + pps_freq;
+	ltemp = time_freq;
 	time_adj += shift_right(ltemp,(SHIFT_USEC + SHIFT_HZ - SHIFT_SCALE));
 
 #if HZ == 100
@@ -956,19 +947,7 @@ void do_timer(struct pt_regs *regs)
  */
 asmlinkage unsigned long sys_alarm(unsigned int seconds)
 {
-	struct itimerval it_new, it_old;
-	unsigned int oldalarm;
-
-	it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
-	it_new.it_value.tv_sec = seconds;
-	it_new.it_value.tv_usec = 0;
-	do_setitimer(ITIMER_REAL, &it_new, &it_old);
-	oldalarm = it_old.it_value.tv_sec;
-	/* ehhh.. We can't return 0 if we have an alarm pending.. */
-	/* And we'd better return too much than too little anyway */
-	if ((!oldalarm && it_old.it_value.tv_usec) || it_old.it_value.tv_usec >= 500000)
-		oldalarm++;
-	return oldalarm;
+	return alarm_setitimer(seconds);
 }
 
 #endif