Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)
  NR_CPUS: Replace NR_CPUS in speedstep-centrino.c
  cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP
  NR_CPUS: Replace NR_CPUS in cpufreq userspace routines
  NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genapic_flat_64.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genx2apic_uv_x.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.c
  cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix
  cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_target
  cpumask: Provide a generic set of CPUMASK_ALLOC macros
  cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c
  cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c
  cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c
  cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c
  cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c
  cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr
  Revert "cpumask: introduce new APIs"
  cpumask: make for_each_cpu_mask a bit smaller
  net: Pass reference to cpumask variable in net/sunrpc/svc.c
  ...

Fix up trivial conflicts in drivers/cpufreq/cpufreq.c manually

13 files changed, 48 insertions, 46 deletions

diff --git a/kernel/cpu.c b/kernel/cpu.c
index cfb1d43ab80..d26d0b095b3 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -413,7 +413,7 @@ void __ref enable_nonboot_cpus(void)
                 goto out;
 
         printk("Enabling non-boot CPUs ...\n");
-        for_each_cpu_mask(cpu, frozen_cpus) {
+        for_each_cpu_mask_nr(cpu, frozen_cpus) {
                 error = _cpu_up(cpu, 1);
                 if (!error) {
                         printk("CPU%d is up\n", cpu);
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c
index 16eeeaa9d61..6f8696c502f 100644
--- a/kernel/rcuclassic.c
+++ b/kernel/rcuclassic.c
@@ -106,7 +106,7 @@ static void force_quiescent_state(struct rcu_data *rdp,
                  */
                 cpus_and(cpumask, rcp->cpumask, cpu_online_map);
                 cpu_clear(rdp->cpu, cpumask);
-                for_each_cpu_mask(cpu, cpumask)
+                for_each_cpu_mask_nr(cpu, cpumask)
                         smp_send_reschedule(cpu);
         }
 }
diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index 6f62b77d93c..27827931ca0 100644
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -756,7 +756,7 @@ rcu_try_flip_idle(void)
 
         /* Now ask each CPU for acknowledgement of the flip. */
 
-        for_each_cpu_mask(cpu, rcu_cpu_online_map) {
+        for_each_cpu_mask_nr(cpu, rcu_cpu_online_map) {
                 per_cpu(rcu_flip_flag, cpu) = rcu_flipped;
                 dyntick_save_progress_counter(cpu);
         }
@@ -774,7 +774,7 @@ rcu_try_flip_waitack(void)
         int cpu;
 
         RCU_TRACE_ME(rcupreempt_trace_try_flip_a1);
-        for_each_cpu_mask(cpu, rcu_cpu_online_map)
+        for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
                 if (rcu_try_flip_waitack_needed(cpu) &&
                     per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) {
                         RCU_TRACE_ME(rcupreempt_trace_try_flip_ae1);
@@ -806,7 +806,7 @@ rcu_try_flip_waitzero(void)
         /* Check to see if the sum of the "last" counters is zero. */
 
         RCU_TRACE_ME(rcupreempt_trace_try_flip_z1);
-        for_each_cpu_mask(cpu, rcu_cpu_online_map)
+        for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
                 sum += RCU_DATA_CPU(cpu)->rcu_flipctr[lastidx];
         if (sum != 0) {
                 RCU_TRACE_ME(rcupreempt_trace_try_flip_ze1);
@@ -821,7 +821,7 @@ rcu_try_flip_waitzero(void)
         smp_mb();  /*  ^^^^^^^^^^^^ */
 
         /* Call for a memory barrier from each CPU. */
-        for_each_cpu_mask(cpu, rcu_cpu_online_map) {
+        for_each_cpu_mask_nr(cpu, rcu_cpu_online_map) {
                 per_cpu(rcu_mb_flag, cpu) = rcu_mb_needed;
                 dyntick_save_progress_counter(cpu);
         }
@@ -841,7 +841,7 @@ rcu_try_flip_waitmb(void)
         int cpu;
 
         RCU_TRACE_ME(rcupreempt_trace_try_flip_m1);
-        for_each_cpu_mask(cpu, rcu_cpu_online_map)
+        for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
                 if (rcu_try_flip_waitmb_needed(cpu) &&
                     per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) {
                         RCU_TRACE_ME(rcupreempt_trace_try_flip_me1);
diff --git a/kernel/sched.c b/kernel/sched.c
index b1104ea5d25..df80bae6815 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2108,7 +2108,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p, int this_cpu)
                 /* Tally up the load of all CPUs in the group */
                 avg_load = 0;
 
-                for_each_cpu_mask(i, group->cpumask) {
+                for_each_cpu_mask_nr(i, group->cpumask) {
                         /* Bias balancing toward cpus of our domain */
                         if (local_group)
                                 load = source_load(i, load_idx);
@@ -2150,7 +2150,7 @@ find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu,
         /* Traverse only the allowed CPUs */
         cpus_and(*tmp, group->cpumask, p->cpus_allowed);
 
-        for_each_cpu_mask(i, *tmp) {
+        for_each_cpu_mask_nr(i, *tmp) {
                 load = weighted_cpuload(i);
 
                 if (load < min_load || (load == min_load && i == this_cpu)) {
@@ -3168,7 +3168,7 @@ find_busiest_group(struct sched_domain *sd, int this_cpu,
                 max_cpu_load = 0;
                 min_cpu_load = ~0UL;
 
-                for_each_cpu_mask(i, group->cpumask) {
+                for_each_cpu_mask_nr(i, group->cpumask) {
                         struct rq *rq;
 
                         if (!cpu_isset(i, *cpus))
@@ -3447,7 +3447,7 @@ find_busiest_queue(struct sched_group *group, enum cpu_idle_type idle,
         unsigned long max_load = 0;
         int i;
 
-        for_each_cpu_mask(i, group->cpumask) {
+        for_each_cpu_mask_nr(i, group->cpumask) {
                 unsigned long wl;
 
                 if (!cpu_isset(i, *cpus))
@@ -3989,7 +3989,7 @@ static void run_rebalance_domains(struct softirq_action *h)
                 int balance_cpu;
 
                 cpu_clear(this_cpu, cpus);
-                for_each_cpu_mask(balance_cpu, cpus) {
+                for_each_cpu_mask_nr(balance_cpu, cpus) {
                         /*
                          * If this cpu gets work to do, stop the load balancing
                          * work being done for other cpus. Next load
@@ -6802,7 +6802,7 @@ init_sched_build_groups(const cpumask_t *span, const cpumask_t *cpu_map,
 
         cpus_clear(*covered);
 
-        for_each_cpu_mask(i, *span) {
+        for_each_cpu_mask_nr(i, *span) {
                 struct sched_group *sg;
                 int group = group_fn(i, cpu_map, &sg, tmpmask);
                 int j;
@@ -6813,7 +6813,7 @@ init_sched_build_groups(const cpumask_t *span, const cpumask_t *cpu_map,
                 cpus_clear(sg->cpumask);
                 sg->__cpu_power = 0;
 
-                for_each_cpu_mask(j, *span) {
+                for_each_cpu_mask_nr(j, *span) {
                         if (group_fn(j, cpu_map, NULL, tmpmask) != group)
                                 continue;
 
@@ -7013,7 +7013,7 @@ static void init_numa_sched_groups_power(struct sched_group *group_head)
         if (!sg)
                 return;
         do {
-                for_each_cpu_mask(j, sg->cpumask) {
+                for_each_cpu_mask_nr(j, sg->cpumask) {
                         struct sched_domain *sd;
 
                         sd = &per_cpu(phys_domains, j);
@@ -7038,7 +7038,7 @@ static void free_sched_groups(const cpumask_t *cpu_map, cpumask_t *nodemask)
 {
         int cpu, i;
 
-        for_each_cpu_mask(cpu, *cpu_map) {
+        for_each_cpu_mask_nr(cpu, *cpu_map) {
                 struct sched_group **sched_group_nodes
                         = sched_group_nodes_bycpu[cpu];
 
@@ -7277,7 +7277,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
         /*
          * Set up domains for cpus specified by the cpu_map.
          */
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 struct sched_domain *sd = NULL, *p;
                 SCHED_CPUMASK_VAR(nodemask, allmasks);
 
@@ -7344,7 +7344,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
 
 #ifdef CONFIG_SCHED_SMT
         /* Set up CPU (sibling) groups */
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 SCHED_CPUMASK_VAR(this_sibling_map, allmasks);
                 SCHED_CPUMASK_VAR(send_covered, allmasks);
 
@@ -7361,7 +7361,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
 
 #ifdef CONFIG_SCHED_MC
         /* Set up multi-core groups */
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 SCHED_CPUMASK_VAR(this_core_map, allmasks);
                 SCHED_CPUMASK_VAR(send_covered, allmasks);
 
@@ -7428,7 +7428,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
                         goto error;
                 }
                 sched_group_nodes[i] = sg;
-                for_each_cpu_mask(j, *nodemask) {
+                for_each_cpu_mask_nr(j, *nodemask) {
                         struct sched_domain *sd;
 
                         sd = &per_cpu(node_domains, j);
@@ -7474,21 +7474,21 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
 
         /* Calculate CPU power for physical packages and nodes */
 #ifdef CONFIG_SCHED_SMT
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 struct sched_domain *sd = &per_cpu(cpu_domains, i);
 
                 init_sched_groups_power(i, sd);
         }
 #endif
 #ifdef CONFIG_SCHED_MC
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 struct sched_domain *sd = &per_cpu(core_domains, i);
 
                 init_sched_groups_power(i, sd);
         }
 #endif
 
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 struct sched_domain *sd = &per_cpu(phys_domains, i);
 
                 init_sched_groups_power(i, sd);
@@ -7508,7 +7508,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
 #endif
 
         /* Attach the domains */
-        for_each_cpu_mask(i, *cpu_map) {
+        for_each_cpu_mask_nr(i, *cpu_map) {
                 struct sched_domain *sd;
 #ifdef CONFIG_SCHED_SMT
                 sd = &per_cpu(cpu_domains, i);
@@ -7603,7 +7603,7 @@ static void detach_destroy_domains(const cpumask_t *cpu_map)
 
         unregister_sched_domain_sysctl();
 
-        for_each_cpu_mask(i, *cpu_map)
+        for_each_cpu_mask_nr(i, *cpu_map)
                 cpu_attach_domain(NULL, &def_root_domain, i);
         synchronize_sched();
         arch_destroy_sched_domains(cpu_map, &tmpmask);
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index f2aa987027d..bb61fe26b62 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1031,7 +1031,7 @@ static int wake_idle(int cpu, struct task_struct *p)
                     || ((sd->flags & SD_WAKE_IDLE_FAR)
                         && !task_hot(p, task_rq(p)->clock, sd))) {
                         cpus_and(tmp, sd->span, p->cpus_allowed);
-                        for_each_cpu_mask(i, tmp) {
+                        for_each_cpu_mask_nr(i, tmp) {
                                 if (idle_cpu(i)) {
                                         if (i != task_cpu(p)) {
                                                 schedstat_inc(p,
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 47ceac9e855..7c9614728c5 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -240,7 +240,7 @@ static int do_balance_runtime(struct rt_rq *rt_rq)
 
         spin_lock(&rt_b->rt_runtime_lock);
         rt_period = ktime_to_ns(rt_b->rt_period);
-        for_each_cpu_mask(i, rd->span) {
+        for_each_cpu_mask_nr(i, rd->span) {
                 struct rt_rq *iter = sched_rt_period_rt_rq(rt_b, i);
                 s64 diff;
 
@@ -1107,7 +1107,7 @@ static int pull_rt_task(struct rq *this_rq)
 
         next = pick_next_task_rt(this_rq);
 
-        for_each_cpu_mask(cpu, this_rq->rd->rto_mask) {
+        for_each_cpu_mask_nr(cpu, this_rq->rd->rto_mask) {
                 if (this_cpu == cpu)
                         continue;
 
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index ba9b2054ecb..738b411ff2d 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -33,8 +33,9 @@ static int stopmachine(void *cpu)
 {
         int irqs_disabled = 0;
         int prepared = 0;
+        cpumask_of_cpu_ptr(cpumask, (int)(long)cpu);
 
-        set_cpus_allowed_ptr(current, &cpumask_of_cpu((int)(long)cpu));
+        set_cpus_allowed_ptr(current, cpumask);
 
         /* Ack: we are alive */
         smp_mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 4a23517169a..06b17547f4e 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -301,7 +301,7 @@ static int add_del_listener(pid_t pid, cpumask_t *maskp, int isadd)
                 return -EINVAL;
 
         if (isadd == REGISTER) {
-                for_each_cpu_mask(cpu, mask) {
+                for_each_cpu_mask_nr(cpu, mask) {
                         s = kmalloc_node(sizeof(struct listener), GFP_KERNEL,
                                          cpu_to_node(cpu));
                         if (!s)
@@ -320,7 +320,7 @@ static int add_del_listener(pid_t pid, cpumask_t *maskp, int isadd)
 
         /* Deregister or cleanup */
 cleanup:
-        for_each_cpu_mask(cpu, mask) {
+        for_each_cpu_mask_nr(cpu, mask) {
                 listeners = &per_cpu(listener_array, cpu);
                 down_write(&listeners->sem);
                 list_for_each_entry_safe(s, tmp, &listeners->list, list) {
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index b1c2da81b05..093d4acf993 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -145,9 +145,9 @@ static void clocksource_watchdog(unsigned long data)
                  * Cycle through CPUs to check if the CPUs stay
                  * synchronized to each other.
                  */
-                int next_cpu = next_cpu(raw_smp_processor_id(), cpu_online_map);
+                int next_cpu = next_cpu_nr(raw_smp_processor_id(), cpu_online_map);
 
-                if (next_cpu >= NR_CPUS)
+                if (next_cpu >= nr_cpu_ids)
                         next_cpu = first_cpu(cpu_online_map);
                 watchdog_timer.expires += WATCHDOG_INTERVAL;
                 add_timer_on(&watchdog_timer, next_cpu);
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index f48d0f09d32..31463d370b9 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -399,8 +399,7 @@ again:
         mask = CPU_MASK_NONE;
         now = ktime_get();
         /* Find all expired events */
-        for (cpu = first_cpu(tick_broadcast_oneshot_mask); cpu != NR_CPUS;
-             cpu = next_cpu(cpu, tick_broadcast_oneshot_mask)) {
+        for_each_cpu_mask_nr(cpu, tick_broadcast_oneshot_mask) {
                 td = &per_cpu(tick_cpu_device, cpu);
                 if (td->evtdev->next_event.tv64 <= now.tv64)
                         cpu_set(cpu, mask);
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 4f3886562b8..bf43284d685 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -135,7 +135,7 @@ void tick_setup_periodic(struct clock_event_device *dev, int broadcast)
  */
 static void tick_setup_device(struct tick_device *td,
                               struct clock_event_device *newdev, int cpu,
-                              cpumask_t cpumask)
+                              const cpumask_t *cpumask)
 {
         ktime_t next_event;
         void (*handler)(struct clock_event_device *) = NULL;
@@ -169,8 +169,8 @@ static void tick_setup_device(struct tick_device *td,
          * When the device is not per cpu, pin the interrupt to the
          * current cpu:
          */
-        if (!cpus_equal(newdev->cpumask, cpumask))
-                irq_set_affinity(newdev->irq, cpumask);
+        if (!cpus_equal(newdev->cpumask, *cpumask))
+                irq_set_affinity(newdev->irq, *cpumask);
 
         /*
          * When global broadcasting is active, check if the current
@@ -196,20 +196,20 @@ static int tick_check_new_device(struct clock_event_device *newdev)
         struct tick_device *td;
         int cpu, ret = NOTIFY_OK;
         unsigned long flags;
-        cpumask_t cpumask;
+        cpumask_of_cpu_ptr_declare(cpumask);
 
         spin_lock_irqsave(&tick_device_lock, flags);
 
         cpu = smp_processor_id();
+        cpumask_of_cpu_ptr_next(cpumask, cpu);
         if (!cpu_isset(cpu, newdev->cpumask))
                 goto out_bc;
 
         td = &per_cpu(tick_cpu_device, cpu);
         curdev = td->evtdev;
-        cpumask = cpumask_of_cpu(cpu);
 
         /* cpu local device ? */
-        if (!cpus_equal(newdev->cpumask, cpumask)) {
+        if (!cpus_equal(newdev->cpumask, *cpumask)) {
 
                 /*
                  * If the cpu affinity of the device interrupt can not
@@ -222,7 +222,7 @@ static int tick_check_new_device(struct clock_event_device *newdev)
                  * If we have a cpu local device already, do not replace it
                  * by a non cpu local device
                  */
-                if (curdev && cpus_equal(curdev->cpumask, cpumask))
+                if (curdev && cpus_equal(curdev->cpumask, *cpumask))
                         goto out_bc;
         }
 
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index 2301e1e7c60..63528086337 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -213,7 +213,9 @@ static void start_stack_timers(void)
         int cpu;
 
         for_each_online_cpu(cpu) {
-                set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
+                cpumask_of_cpu_ptr(new_mask, cpu);
+
+                set_cpus_allowed_ptr(current, new_mask);
                 start_stack_timer(cpu);
         }
         set_cpus_allowed_ptr(current, &saved_mask);
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ce7799540c9..a6d36346d10 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -397,7 +397,7 @@ void flush_workqueue(struct workqueue_struct *wq)
         might_sleep();
         lock_acquire(&wq->lockdep_map, 0, 0, 0, 2, _THIS_IP_);
         lock_release(&wq->lockdep_map, 1, _THIS_IP_);
-        for_each_cpu_mask(cpu, *cpu_map)
+        for_each_cpu_mask_nr(cpu, *cpu_map)
                 flush_cpu_workqueue(per_cpu_ptr(wq->cpu_wq, cpu));
 }
 EXPORT_SYMBOL_GPL(flush_workqueue);
@@ -477,7 +477,7 @@ static void wait_on_work(struct work_struct *work)
         wq = cwq->wq;
         cpu_map = wq_cpu_map(wq);
 
-        for_each_cpu_mask(cpu, *cpu_map)
+        for_each_cpu_mask_nr(cpu, *cpu_map)
                 wait_on_cpu_work(per_cpu_ptr(wq->cpu_wq, cpu), work);
 }
 
@@ -813,7 +813,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
         list_del(&wq->list);
         spin_unlock(&workqueue_lock);
 
-        for_each_cpu_mask(cpu, *cpu_map)
+        for_each_cpu_mask_nr(cpu, *cpu_map)
                 cleanup_workqueue_thread(per_cpu_ptr(wq->cpu_wq, cpu));
         put_online_cpus();