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| author | Rusty Russell | 2009-03-13 05:19:50 +0100 |
|---|---|---|
| committer | Rusty Russell | 2009-03-13 05:19:50 +0100 |
| commit | 7ad728f98162cb1af06a85b2a5fc422dddd4fb78 (patch) | |
| tree | 85a326e35ff5d37d89aa7a687a623cded6fcb190 /arch/x86/include/asm | |
| parent | cpumask: convert arch/x86/kernel/nmi.c's backtrace_mask to a cpumask_var_t (diff) | |
| download | kernel-qcow2-linux-7ad728f98162cb1af06a85b2a5fc422dddd4fb78.tar.gz kernel-qcow2-linux-7ad728f98162cb1af06a85b2a5fc422dddd4fb78.tar.xz kernel-qcow2-linux-7ad728f98162cb1af06a85b2a5fc422dddd4fb78.zip | |
cpumask: x86: convert cpu_sibling_map/cpu_core_map to cpumask_var_t
Impact: reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y
In most places it's cleaner to use the accessors cpu_sibling_mask()
and cpu_core_mask() wrappers which already exist.
I couldn't avoid cleaning up the access in oprofile, either.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/smp.h | 8 | ||||
| -rw-r--r-- | arch/x86/include/asm/topology.h | 6 |
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 47d0e21f2b9e..cfb10f1667fe 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -21,19 +21,19 @@ extern int smp_num_siblings; extern unsigned int num_processors; -DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); -DECLARE_PER_CPU(cpumask_t, cpu_core_map); +DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map); +DECLARE_PER_CPU(cpumask_var_t, cpu_core_map); DECLARE_PER_CPU(u16, cpu_llc_id); DECLARE_PER_CPU(int, cpu_number); static inline struct cpumask *cpu_sibling_mask(int cpu) { - return &per_cpu(cpu_sibling_map, cpu); + return per_cpu(cpu_sibling_map, cpu); } static inline struct cpumask *cpu_core_mask(int cpu) { - return &per_cpu(cpu_core_map, cpu); + return per_cpu(cpu_core_map, cpu); } DECLARE_EARLY_PER_CPU(u16, x86_cpu_to_apicid); diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index f7c20d031422..fa4aa42e976d 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -249,8 +249,8 @@ extern const struct cpumask *cpu_coregroup_mask(int cpu); #ifdef ENABLE_TOPO_DEFINES #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) -#define topology_core_cpumask(cpu) (&per_cpu(cpu_core_map, cpu)) -#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) +#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) +#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) /* indicates that pointers to the topology cpumask_t maps are valid */ #define arch_provides_topology_pointers yes @@ -264,7 +264,7 @@ struct pci_bus; void set_pci_bus_resources_arch_default(struct pci_bus *b); #ifdef CONFIG_SMP -#define mc_capable() (cpus_weight(per_cpu(cpu_core_map, 0)) != nr_cpu_ids) +#define mc_capable() (cpumask_weight(cpu_core_mask(0)) != nr_cpu_ids) #define smt_capable() (smp_num_siblings > 1) #endif |