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cpumask: use new cpumask functions throughout x86

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Impact: cleanup

1) &cpu_online_map -> cpu_online_mask
2) first_cpu/next_cpu_nr -> cpumask_first/cpumask_next
3) cpu_*_map manipulation -> init_cpu_* / set_cpu_*

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2009-03-13 14:49:54 +10:30
parent 3f76a183de
commit 4f0628963c
9 changed files with 26 additions and 27 deletions
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11
arch/x86/kernel/smpboot.c
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@@ -296,7 +296,7 @@ notrace static void __cpuinit start_secondary(void *unused)
__flush_tlb_all();
#endif
/* This must be done before setting cpu_online_map */
/* This must be done before setting cpu_online_mask */
set_cpu_sibling_map(raw_smp_processor_id());
wmb();
@@ -904,9 +904,8 @@ int __cpuinit native_cpu_up(unsigned int cpu)
*/
static __init void disable_smp(void)
{
/* use the read/write pointers to the present and possible maps */
cpumask_copy(&cpu_present_map, cpumask_of(0));
cpumask_copy(&cpu_possible_map, cpumask_of(0));
init_cpu_present(cpumask_of(0));
init_cpu_possible(cpumask_of(0));
smpboot_clear_io_apic_irqs();
if (smp_found_config)
@@ -1149,11 +1148,11 @@ early_param("possible_cpus", _setup_possible_cpus);
/*
* cpu_possible_map should be static, it cannot change as cpu's
* cpu_possible_mask should be static, it cannot change as cpu's
* are onlined, or offlined. The reason is per-cpu data-structures
* are allocated by some modules at init time, and dont expect to
* do this dynamically on cpu arrival/departure.
* cpu_present_map on the other hand can change dynamically.
* cpu_present_mask on the other hand can change dynamically.
* In case when cpu_hotplug is not compiled, then we resort to current
* behaviour, which is cpu_possible == cpu_present.
* - Ashok Raj