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| author | Tejun Heo <tj@kernel.org> | 2009-01-13 20:41:34 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-16 14:18:17 +0100 |
| commit | f10fcd47120e80f66665567dbe17f5071c7aef52 (patch) | |
| tree | 825281816d434a6b3ba596bb922d7a4a77d91448 /arch/x86 | |
| parent | 7de6883faad71e3a253d55b9e1a47b89ebce0a31 (diff) | |
| download | linux-stable-f10fcd47120e80f66665567dbe17f5071c7aef52.tar.gz linux-stable-f10fcd47120e80f66665567dbe17f5071c7aef52.tar.bz2 linux-stable-f10fcd47120e80f66665567dbe17f5071c7aef52.zip | |
x86: make early_per_cpu() a lvalue and use it
Make early_per_cpu() a lvalue as per_cpu() is and use it where
applicable.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/percpu.h | 6 | ||||
| -rw-r--r-- | arch/x86/include/asm/topology.h | 5 | ||||
| -rw-r--r-- | arch/x86/kernel/apic.c | 13 |
3 files changed, 6 insertions, 18 deletions
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index ece72053ba63..df644f3e53e6 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -195,9 +195,9 @@ do { \ #define early_per_cpu_ptr(_name) (_name##_early_ptr) #define early_per_cpu_map(_name, _idx) (_name##_early_map[_idx]) #define early_per_cpu(_name, _cpu) \ - (early_per_cpu_ptr(_name) ? \ - early_per_cpu_ptr(_name)[_cpu] : \ - per_cpu(_name, _cpu)) + *(early_per_cpu_ptr(_name) ? \ + &early_per_cpu_ptr(_name)[_cpu] : \ + &per_cpu(_name, _cpu)) #else /* !CONFIG_SMP */ #define DEFINE_EARLY_PER_CPU(_type, _name, _initvalue) \ diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 4e2f2e0aab27..87ca3fd86e88 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -102,10 +102,7 @@ static inline int cpu_to_node(int cpu) /* Same function but used if called before per_cpu areas are setup */ static inline int early_cpu_to_node(int cpu) { - if (early_per_cpu_ptr(x86_cpu_to_node_map)) - return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu]; - - return per_cpu(x86_cpu_to_node_map, cpu); + return early_per_cpu(x86_cpu_to_node_map, cpu); } /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c index 38d6aab2358d..485787955834 100644 --- a/arch/x86/kernel/apic.c +++ b/arch/x86/kernel/apic.c @@ -1877,17 +1877,8 @@ void __cpuinit generic_processor_info(int apicid, int version) #endif #if defined(CONFIG_X86_SMP) || defined(CONFIG_X86_64) - /* are we being called early in kernel startup? */ - if (early_per_cpu_ptr(x86_cpu_to_apicid)) { - u16 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid); - u16 *bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid); - - cpu_to_apicid[cpu] = apicid; - bios_cpu_apicid[cpu] = apicid; - } else { - per_cpu(x86_cpu_to_apicid, cpu) = apicid; - per_cpu(x86_bios_cpu_apicid, cpu) = apicid; - } + early_per_cpu(x86_cpu_to_apicid, cpu) = apicid; + early_per_cpu(x86_bios_cpu_apicid, cpu) = apicid; #endif set_cpu_possible(cpu, true); |