[PATCH] for_each_possible_cpu: sparc64
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. for sparc64. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1092,7 +1092,7 @@ void sun4v_pci_init(int node, char *model_name)
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}
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}
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for_each_cpu(i) {
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for_each_possible_cpu(i) {
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unsigned long page = get_zeroed_page(GFP_ATOMIC);
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if (!page)
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@ -535,7 +535,7 @@ static int __init topology_init(void)
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while (!cpu_find_by_instance(ncpus_probed, NULL, NULL))
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ncpus_probed++;
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for_each_cpu(i) {
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for_each_possible_cpu(i) {
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struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
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if (p) {
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register_cpu(p, i, NULL);
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@ -1280,7 +1280,7 @@ int setup_profiling_timer(unsigned int multiplier)
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return -EINVAL;
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spin_lock_irqsave(&prof_setup_lock, flags);
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for_each_cpu(i)
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for_each_possible_cpu(i)
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prof_multiplier(i) = multiplier;
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current_tick_offset = (timer_tick_offset / multiplier);
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spin_unlock_irqrestore(&prof_setup_lock, flags);
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@ -1308,12 +1308,12 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
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}
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}
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for_each_cpu(i) {
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for_each_possible_cpu(i) {
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if (tlb_type == hypervisor) {
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int j;
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/* XXX get this mapping from machine description */
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for_each_cpu(j) {
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for_each_possible_cpu(j) {
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if ((j >> 2) == (i >> 2))
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cpu_set(j, cpu_sibling_map[i]);
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}
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@ -26,7 +26,7 @@ register unsigned long __local_per_cpu_offset asm("g5");
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#define percpu_modcopy(pcpudst, src, size) \
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do { \
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unsigned int __i; \
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for_each_cpu(__i) \
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for_each_possible_cpu(__i) \
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memcpy((pcpudst)+__per_cpu_offset(__i), \
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(src), (size)); \
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} while (0)
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