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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-23 21:37:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-23 21:37:44 -0400
commit26dcce0fabbef75ae426461edf21b5030bad60f3 (patch)
tree56c64fa47dc29f7ea5a8fd0cab0459fb0a05a2bc /kernel/time
parentd7b6de14a0ef8a376f9d57b867545b47302b7bfb (diff)
parenteb6a12c2428d21a9f3e0f1a50e927d5fd80fc3d0 (diff)
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
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/clocksource.c4
-rw-r--r--kernel/time/tick-broadcast.c3
-rw-r--r--kernel/time/tick-common.c14
3 files changed, 10 insertions, 11 deletions
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index b1c2da81b050..093d4acf993b 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -145,9 +145,9 @@ static void clocksource_watchdog(unsigned long data)
145 * Cycle through CPUs to check if the CPUs stay 145 * Cycle through CPUs to check if the CPUs stay
146 * synchronized to each other. 146 * synchronized to each other.
147 */ 147 */
148 int next_cpu = next_cpu(raw_smp_processor_id(), cpu_online_map); 148 int next_cpu = next_cpu_nr(raw_smp_processor_id(), cpu_online_map);
149 149
150 if (next_cpu >= NR_CPUS) 150 if (next_cpu >= nr_cpu_ids)
151 next_cpu = first_cpu(cpu_online_map); 151 next_cpu = first_cpu(cpu_online_map);
152 watchdog_timer.expires += WATCHDOG_INTERVAL; 152 watchdog_timer.expires += WATCHDOG_INTERVAL;
153 add_timer_on(&watchdog_timer, next_cpu); 153 add_timer_on(&watchdog_timer, next_cpu);
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index f48d0f09d32f..31463d370b94 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -399,8 +399,7 @@ again:
399 mask = CPU_MASK_NONE; 399 mask = CPU_MASK_NONE;
400 now = ktime_get(); 400 now = ktime_get();
401 /* Find all expired events */ 401 /* Find all expired events */
402 for (cpu = first_cpu(tick_broadcast_oneshot_mask); cpu != NR_CPUS; 402 for_each_cpu_mask_nr(cpu, tick_broadcast_oneshot_mask) {
403 cpu = next_cpu(cpu, tick_broadcast_oneshot_mask)) {
404 td = &per_cpu(tick_cpu_device, cpu); 403 td = &per_cpu(tick_cpu_device, cpu);
405 if (td->evtdev->next_event.tv64 <= now.tv64) 404 if (td->evtdev->next_event.tv64 <= now.tv64)
406 cpu_set(cpu, mask); 405 cpu_set(cpu, mask);
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 4f3886562b8c..bf43284d6855 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)
135 */ 135 */
136static void tick_setup_device(struct tick_device *td, 136static void tick_setup_device(struct tick_device *td,
137 struct clock_event_device *newdev, int cpu, 137 struct clock_event_device *newdev, int cpu,
138 cpumask_t cpumask) 138 const cpumask_t *cpumask)
139{ 139{
140 ktime_t next_event; 140 ktime_t next_event;
141 void (*handler)(struct clock_event_device *) = NULL; 141 void (*handler)(struct clock_event_device *) = NULL;
@@ -169,8 +169,8 @@ static void tick_setup_device(struct tick_device *td,
169 * When the device is not per cpu, pin the interrupt to the 169 * When the device is not per cpu, pin the interrupt to the
170 * current cpu: 170 * current cpu:
171 */ 171 */
172 if (!cpus_equal(newdev->cpumask, cpumask)) 172 if (!cpus_equal(newdev->cpumask, *cpumask))
173 irq_set_affinity(newdev->irq, cpumask); 173 irq_set_affinity(newdev->irq, *cpumask);
174 174
175 /* 175 /*
176 * When global broadcasting is active, check if the current 176 * When global broadcasting is active, check if the current
@@ -196,20 +196,20 @@ static int tick_check_new_device(struct clock_event_device *newdev)
196 struct tick_device *td; 196 struct tick_device *td;
197 int cpu, ret = NOTIFY_OK; 197 int cpu, ret = NOTIFY_OK;
198 unsigned long flags; 198 unsigned long flags;
199 cpumask_t cpumask; 199 cpumask_of_cpu_ptr_declare(cpumask);
200 200
201 spin_lock_irqsave(&tick_device_lock, flags); 201 spin_lock_irqsave(&tick_device_lock, flags);
202 202
203 cpu = smp_processor_id(); 203 cpu = smp_processor_id();
204 cpumask_of_cpu_ptr_next(cpumask, cpu);
204 if (!cpu_isset(cpu, newdev->cpumask)) 205 if (!cpu_isset(cpu, newdev->cpumask))
205 goto out_bc; 206 goto out_bc;
206 207
207 td = &per_cpu(tick_cpu_device, cpu); 208 td = &per_cpu(tick_cpu_device, cpu);
208 curdev = td->evtdev; 209 curdev = td->evtdev;
209 cpumask = cpumask_of_cpu(cpu);
210 210
211 /* cpu local device ? */ 211 /* cpu local device ? */
212 if (!cpus_equal(newdev->cpumask, cpumask)) { 212 if (!cpus_equal(newdev->cpumask, *cpumask)) {
213 213
214 /* 214 /*
215 * If the cpu affinity of the device interrupt can not 215 * 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)
222 * If we have a cpu local device already, do not replace it 222 * If we have a cpu local device already, do not replace it
223 * by a non cpu local device 223 * by a non cpu local device
224 */ 224 */
225 if (curdev && cpus_equal(curdev->cpumask, cpumask)) 225 if (curdev && cpus_equal(curdev->cpumask, *cpumask))
226 goto out_bc; 226 goto out_bc;
227 } 227 }
228 228