diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-06-30 13:43:28 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-06-30 13:43:28 +1000 |
| commit | d6509f5fc03dd87af2b35af2502b18b5eeba82a6 (patch) | |
| tree | 1e6d8b33b4c0888b1675a15f56f3875cda181a03 | |
| parent | 7ca24e14b42f9165310cb6274657ab243451bcb9 (diff) | |
| parent | 1e8c3fdac4486ee8dbc67e89df34328be1b724b3 (diff) | |
Merge branch 'quilt/rr'
Conflicts:
arch/powerpc/platforms/powermac/setup.c
kernel/cpu.c
84 files changed, 489 insertions, 800 deletions
diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h index 547e90951cec..3f390e8cc0b3 100644 --- a/arch/alpha/include/asm/smp.h +++ b/arch/alpha/include/asm/smp.h @@ -47,7 +47,7 @@ extern struct cpuinfo_alpha cpu_data[NR_CPUS]; extern int smp_num_cpus; extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #else /* CONFIG_SMP */ diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h index b4f284c72ff3..36b3a30ba0e5 100644 --- a/arch/alpha/include/asm/topology.h +++ b/arch/alpha/include/asm/topology.h @@ -22,23 +22,6 @@ static inline int cpu_to_node(int cpu) return node; } -static inline cpumask_t node_to_cpumask(int node) -{ - cpumask_t node_cpu_mask = CPU_MASK_NONE; - int cpu; - - for_each_online_cpu(cpu) { - if (cpu_to_node(cpu) == node) - cpu_set(cpu, node_cpu_mask); - } - -#ifdef DEBUG_NUMA - printk("node %d: cpu_mask: %016lx\n", node, node_cpu_mask); -#endif - - return node_cpu_mask; -} - extern struct cpumask node_to_cpumask_map[]; /* FIXME: This is dumb, recalculating every time. But simple. */ static const struct cpumask *cpumask_of_node(int node) @@ -55,7 +38,6 @@ static const struct cpumask *cpumask_of_node(int node) return &node_to_cpumask_map[node]; } -#define pcibus_to_cpumask(bus) (cpu_online_map) #define cpumask_of_pcibus(bus) (cpu_online_mask) #endif /* !CONFIG_NUMA */ diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index b1fe5674c3a1..42aa078a5e4d 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -548,16 +548,16 @@ setup_profiling_timer(unsigned int multiplier) static void -send_ipi_message(cpumask_t to_whom, enum ipi_message_type operation) +send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation) { int i; mb(); - for_each_cpu_mask(i, to_whom) + for_each_cpu(i, to_whom) set_bit(operation, &ipi_data[i].bits); mb(); - for_each_cpu_mask(i, to_whom) + for_each_cpu(i, to_whom) wripir(i); } @@ -624,7 +624,7 @@ smp_send_reschedule(int cpu) printk(KERN_WARNING "smp_send_reschedule: Sending IPI to self.\n"); #endif - send_ipi_message(cpumask_of_cpu(cpu), IPI_RESCHEDULE); + send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE); } void @@ -636,17 +636,17 @@ smp_send_stop(void) if (hard_smp_processor_id() != boot_cpu_id) printk(KERN_WARNING "smp_send_stop: Not on boot cpu.\n"); #endif - send_ipi_message(to_whom, IPI_CPU_STOP); + send_ipi_message(&to_whom, IPI_CPU_STOP); } -void arch_send_call_function_ipi(cpumask_t mask) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { send_ipi_message(mask, IPI_CALL_FUNC); } void arch_send_call_function_single_ipi(int cpu) { - send_ipi_message(cpumask_of_cpu(cpu), IPI_CALL_FUNC_SINGLE); + send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); } static void diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 1a711ea8418b..fd03fb63a332 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -334,14 +334,14 @@ static inline void outer_flush_range(unsigned long start, unsigned long end) #ifndef CONFIG_CPU_CACHE_VIPT static inline void flush_cache_mm(struct mm_struct *mm) { - if (cpu_isset(smp_processor_id(), mm->cpu_vm_mask)) + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) __cpuc_flush_user_all(); } static inline void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) __cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end), vma->vm_flags); } @@ -349,7 +349,7 @@ flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long static inline void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn) { - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { unsigned long addr = user_addr & PAGE_MASK; __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags); } @@ -360,7 +360,7 @@ flush_ptrace_access(struct vm_area_struct *vma, struct page *page, unsigned long uaddr, void *kaddr, unsigned long len, int write) { - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { unsigned long addr = (unsigned long)kaddr; __cpuc_coherent_kern_range(addr, addr + len); } diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h index 263fed05ea33..c3fe09f8fd77 100644 --- a/arch/arm/include/asm/mmu_context.h +++ b/arch/arm/include/asm/mmu_context.h @@ -101,14 +101,15 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next, #ifdef CONFIG_SMP /* check for possible thread migration */ - if (!cpus_empty(next->cpu_vm_mask) && !cpu_isset(cpu, next->cpu_vm_mask)) + if (!cpumask_empty(mm_cpumask(next)) && + !cpumask_test_cpu(cpu, mm_cpumask(next))) __flush_icache_all(); #endif - if (!cpu_test_and_set(cpu, next->cpu_vm_mask) || prev != next) { + if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next) { check_context(next); cpu_switch_mm(next->pgd, next); if (cache_is_vivt()) - cpu_clear(cpu, prev->cpu_vm_mask); + cpumask_clear_cpu(cpu, mm_cpumask(prev)); } #endif } diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h index a06e735b262a..e0d763be1846 100644 --- a/arch/arm/include/asm/smp.h +++ b/arch/arm/include/asm/smp.h @@ -93,7 +93,6 @@ extern void platform_cpu_enable(unsigned int cpu); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask /* * show local interrupt info diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h index c964f3fc3bc5..a45ab5dd8255 100644 --- a/arch/arm/include/asm/tlbflush.h +++ b/arch/arm/include/asm/tlbflush.h @@ -350,7 +350,7 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm) if (tlb_flag(TLB_WB)) dsb(); - if (cpu_isset(smp_processor_id(), mm->cpu_vm_mask)) { + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) { if (tlb_flag(TLB_V3_FULL)) asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (zero) : "cc"); if (tlb_flag(TLB_V4_U_FULL)) @@ -388,7 +388,7 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr) if (tlb_flag(TLB_WB)) dsb(); - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { if (tlb_flag(TLB_V3_PAGE)) asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (uaddr) : "cc"); if (tlb_flag(TLB_V4_U_PAGE)) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index de885fd256c5..e0d32770bb3d 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -189,7 +189,7 @@ int __cpuexit __cpu_disable(void) read_lock(&tasklist_lock); for_each_process(p) { if (p->mm) - cpu_clear(cpu, p->mm->cpu_vm_mask); + cpumask_clear_cpu(cpu, mm_cpumask(p->mm)); } read_unlock(&tasklist_lock); @@ -257,7 +257,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void) atomic_inc(&mm->mm_users); atomic_inc(&mm->mm_count); current->active_mm = mm; - cpu_set(cpu, mm->cpu_vm_mask); + cpumask_set_cpu(cpu, mm_cpumask(mm)); cpu_switch_mm(mm->pgd, mm); enter_lazy_tlb(mm, current); local_flush_tlb_all(); @@ -643,7 +643,7 @@ void flush_tlb_all(void) void flush_tlb_mm(struct mm_struct *mm) { if (tlb_ops_need_broadcast()) - on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, &mm->cpu_vm_mask); + on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, mm_cpumask(mm)); else local_flush_tlb_mm(mm); } @@ -654,7 +654,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr) struct tlb_args ta; ta.ta_vma = vma; ta.ta_start = uaddr; - on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, &vma->vm_mm->cpu_vm_mask); + on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, mm_cpumask(vma->vm_mm)); } else local_flush_tlb_page(vma, uaddr); } @@ -677,7 +677,7 @@ void flush_tlb_range(struct vm_area_struct *vma, ta.ta_vma = vma; ta.ta_start = start; ta.ta_end = end; - on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, &vma->vm_mm->cpu_vm_mask); + on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, mm_cpumask(vma->vm_mm)); } else local_flush_tlb_range(vma, start, end); } diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index fc84fcc74380..6bda76a43199 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -59,6 +59,6 @@ void __new_context(struct mm_struct *mm) } spin_unlock(&cpu_asid_lock); - mm->cpu_vm_mask = cpumask_of_cpu(smp_processor_id()); + cpumask_copy(mm_cpumask(mm), cpumask_of(smp_processor_id())); mm->context.id = asid; } diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index c07222eb5ce0..d9773a63e151 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -50,7 +50,7 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) void flush_cache_mm(struct mm_struct *mm) { if (cache_is_vivt()) { - if (cpu_isset(smp_processor_id(), mm->cpu_vm_mask)) + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) __cpuc_flush_user_all(); return; } @@ -73,7 +73,7 @@ void flush_cache_mm(struct mm_struct *mm) void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { if (cache_is_vivt()) { - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) __cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end), vma->vm_flags); return; @@ -97,7 +97,7 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn) { if (cache_is_vivt()) { - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { unsigned long addr = user_addr & PAGE_MASK; __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags); } @@ -113,7 +113,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, unsigned long len, int write) { if (cache_is_vivt()) { - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) { + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { unsigned long addr = (unsigned long)kaddr; __cpuc_coherent_kern_range(addr, addr + len); } @@ -126,7 +126,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, } /* VIPT non-aliasing cache */ - if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask) && + if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm)) && vma->vm_flags & VM_EXEC) { unsigned long addr = (unsigned long)kaddr; /* only flushing the kernel mapping on non-aliasing VIPT */ diff --git a/arch/frv/include/asm/gdb-stub.h b/arch/frv/include/asm/gdb-stub.h index 24f9738670bd..2da716407ff2 100644 --- a/arch/frv/include/asm/gdb-stub.h +++ b/arch/frv/include/asm/gdb-stub.h @@ -90,7 +90,6 @@ extern void gdbstub_do_rx(void); extern asmlinkage void __debug_stub_init_break(void); extern asmlinkage void __break_hijack_kernel_event(void); extern asmlinkage void __break_hijack_kernel_event_breaks_here(void); -extern asmlinkage void start_kernel(void); extern asmlinkage void gdbstub_rx_handler(void); extern asmlinkage void gdbstub_rx_irq(void); diff --git a/arch/ia64/include/asm/smp.h b/arch/ia64/include/asm/smp.h index d217d1d4e051..0b3b3997decd 100644 --- a/arch/ia64/include/asm/smp.h +++ b/arch/ia64/include/asm/smp.h @@ -127,7 +127,6 @@ extern int is_multithreading_enabled(void); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask #else /* CONFIG_SMP */ diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h index 7b4c8c70b2d1..9ac48c34daac 100644 --- a/arch/ia64/include/asm/topology.h +++ b/arch/ia64/include/asm/topology.h @@ -33,7 +33,6 @@ /* * Returns a bitmask of CPUs on Node 'node'. */ -#define node_to_cpumask(node) (node_to_cpu_mask[node]) #define cpumask_of_node(node) (&node_to_cpu_mask[node]) /* @@ -103,8 +102,6 @@ void build_cpu_to_node_map(void); #ifdef CONFIG_SMP #define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id) #define topology_core_id(cpu) (cpu_data(cpu)->core_id) -#define topology_core_siblings(cpu) (cpu_core_map[cpu]) -#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) #define smt_capable() (smp_num_siblings > 1) diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index f0c521b0ba4c..75d75c9f31f3 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -301,7 +301,7 @@ smp_flush_tlb_mm (struct mm_struct *mm) return; } - smp_call_function_mask(mm->cpu_vm_mask, + smp_call_function_many(mm_cpumask(mm), (void (*)(void *))local_finish_flush_tlb_mm, mm, 1); local_irq_disable(); local_finish_flush_tlb_mm(mm); diff --git a/arch/m32r/include/asm/mmu_context.h b/arch/m32r/include/asm/mmu_context.h index 91909e5dd9d0..a735cc567931 100644 --- a/arch/m32r/include/asm/mmu_context.h +++ b/arch/m32r/include/asm/mmu_context.h @@ -127,7 +127,7 @@ static inline void switch_mm(struct mm_struct *prev, if (prev != next) { #ifdef CONFIG_SMP - cpu_set(cpu, next->cpu_vm_mask); + cpumask_set_cpu(cpu, mm_cpumask(next)); #endif /* CONFIG_SMP */ /* Set MPTB = next->pgd */ *(volatile unsigned long *)MPTB = (unsigned long)next->pgd; @@ -135,7 +135,7 @@ static inline void switch_mm(struct mm_struct *prev, } #ifdef CONFIG_SMP else - if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) + if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) activate_context(next); #endif /* CONFIG_SMP */ } diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h index b96a6d2ffbc3..e67ded1aab91 100644 --- a/arch/m32r/include/asm/smp.h +++ b/arch/m32r/include/asm/smp.h @@ -88,7 +88,7 @@ extern void smp_send_timer(void); extern unsigned long send_IPI_mask_phys(cpumask_t, int, int); extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #endif /* not __ASSEMBLY__ */ diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c index 929e5c9d3ad9..e6ec3cc12854 100644 --- a/arch/m32r/kernel/smp.c +++ b/arch/m32r/kernel/smp.c @@ -85,7 +85,7 @@ void smp_ipi_timer_interrupt(struct pt_regs *); void smp_local_timer_interrupt(void); static void send_IPI_allbutself(int, int); -static void send_IPI_mask(cpumask_t, int, int); +static void send_IPI_mask(const struct cpumask *, int, int); unsigned long send_IPI_mask_phys(cpumask_t, int, int); /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/ @@ -113,7 +113,7 @@ unsigned long send_IPI_mask_phys(cpumask_t, int, int); void smp_send_reschedule(int cpu_id) { WARN_ON(cpu_is_offline(cpu_id)); - send_IPI_mask(cpumask_of_cpu(cpu_id), RESCHEDULE_IPI, 1); + send_IPI_mask(cpumask_of(cpu_id), RESCHEDULE_IPI, 1); } /*==========================================================================* @@ -168,7 +168,7 @@ void smp_flush_cache_all(void) spin_lock(&flushcache_lock); mask=cpus_addr(cpumask); atomic_set_mask(*mask, (atomic_t *)&flushcache_cpumask); - send_IPI_mask(cpumask, INVALIDATE_CACHE_IPI, 0); + send_IPI_mask(&cpumask, INVALIDATE_CACHE_IPI, 0); _flush_cache_copyback_all(); while (flushcache_cpumask) mb(); @@ -264,7 +264,7 @@ void smp_flush_tlb_mm(struct mm_struct *mm) preempt_disable(); cpu_id = smp_processor_id(); mmc = &mm->context[cpu_id]; - cpu_mask = mm->cpu_vm_mask; + cpu_mask = *mm_cpumask(mm); cpu_clear(cpu_id, cpu_mask); if (*mmc != NO_CONTEXT) { @@ -273,7 +273,7 @@ void smp_flush_tlb_mm(struct mm_struct *mm) if (mm == current->mm) activate_context(mm); else - cpu_clear(cpu_id, mm->cpu_vm_mask); + cpumask_clear_cpu(cpu_id, mm_cpumask(mm)); local_irq_restore(flags); } if (!cpus_empty(cpu_mask)) @@ -334,7 +334,7 @@ void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va) preempt_disable(); cpu_id = smp_processor_id(); mmc = &mm->context[cpu_id]; - cpu_mask = mm->cpu_vm_mask; + cpu_mask = *mm_cpumask(mm); cpu_clear(cpu_id, cpu_mask); #ifdef DEBUG_SMP @@ -424,7 +424,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, * We have to send the IPI only to * CPUs affected. */ - send_IPI_mask(cpumask, INVALIDATE_TLB_IPI, 0); + send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0); while (!cpus_empty(flush_cpumask)) { /* nothing. lockup detection does not belong here */ @@ -469,7 +469,7 @@ void smp_invalidate_interrupt(void) if (flush_mm == current->active_mm) activate_context(flush_mm); else - cpu_clear(cpu_id, flush_mm->cpu_vm_mask); + cpumask_clear(cpu_id, mm_cpumask(flush_mm)); } else { unsigned long va = flush_va; @@ -546,14 +546,14 @@ static void stop_this_cpu(void *dummy) for ( ; ; ); } -void arch_send_call_function_ipi(cpumask_t mask) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { send_IPI_mask(mask, CALL_FUNCTION_IPI, 0); } void arch_send_call_function_single_ipi(int cpu) { - send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNC_SINGLE_IPI, 0); + send_IPI_mask(cpumask_of(cpu), CALL_FUNC_SINGLE_IPI, 0); } /*==========================================================================* @@ -729,7 +729,7 @@ static void send_IPI_allbutself(int ipi_num, int try) cpumask = cpu_online_map; cpu_clear(smp_processor_id(), cpumask); - send_IPI_mask(cpumask, ipi_num, try); + send_IPI_mask(&cpumask, ipi_num, try); } /*==========================================================================* @@ -752,7 +752,7 @@ static void send_IPI_allbutself(int ipi_num, int try) * ---------- --- -------------------------------------------------------- * *==========================================================================*/ -static void send_IPI_mask(cpumask_t cpumask, int ipi_num, int try) +static void send_IPI_mask(const struct cpumask *cpumask, int ipi_num, int try) { cpumask_t physid_mask, tmp; int cpu_id, phys_id; @@ -761,11 +761,11 @@ static void send_IPI_mask(cpumask_t cpumask, int ipi_num, int try) if (num_cpus <= 1) /* NO MP */ return; - cpus_and(tmp, cpumask, cpu_online_map); - BUG_ON(!cpus_equal(cpumask, tmp)); + cpumask_and(&tmp, cpumask, cpu_online_mask); + BUG_ON(!cpumask_equal(cpumask, &tmp)); physid_mask = CPU_MASK_NONE; - for_each_cpu_mask(cpu_id, cpumask){ + for_each_cpu(cpu_id, cpumask) { if ((phys_id = cpu_to_physid(cpu_id)) != -1) cpu_set(phys_id, physid_mask); } diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c index 2547d6c4a827..ffc3bbcfd3bb 100644 --- a/arch/m32r/kernel/smpboot.c +++ b/arch/m32r/kernel/smpboot.c @@ -178,7 +178,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) for (phys_id = 0 ; phys_id < nr_cpu ; phys_id++) physid_set(phys_id, phys_cpu_present_map); #ifndef CONFIG_HOTPLUG_CPU - cpu_present_map = cpu_possible_map; + init_cpu_present(&cpu_possible_map); #endif show_mp_info(nr_cpu); diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c index 33fbae79af5e..7e94a49224d7 100644 --- a/arch/mips/alchemy/common/time.c +++ b/arch/mips/alchemy/common/time.c @@ -89,7 +89,7 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = { .irq = AU1000_RTC_MATCH2_INT, .set_next_event = au1x_rtcmatch2_set_next_event, .set_mode = au1x_rtcmatch2_set_mode, - .cpumask = CPU_MASK_ALL_PTR, + .cpumask = cpu_all_mask, }; static struct irqaction au1x_rtcmatch2_irqaction = { diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h index 07547231e078..59f28e9412c4 100644 --- a/arch/mips/include/asm/mach-ip27/topology.h +++ b/arch/mips/include/asm/mach-ip27/topology.h @@ -24,12 +24,10 @@ extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS]; #define cpu_to_node(cpu) (sn_cpu_info[(cpu)].p_nodeid) #define parent_node(node) (node) -#define node_to_cpumask(node) (hub_data(node)->h_cpus) #define cpumask_of_node(node) (&hub_data(node)->h_cpus) struct pci_bus; extern int pcibus_to_node(struct pci_bus *); -#define pcibus_to_cpumask(bus) (cpu_online_map) #define cpumask_of_pcibus(bus) (cpu_online_mask) extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES]; diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h index d3bea88d8744..d9743536a621 100644 --- a/arch/mips/include/asm/mmu_context.h +++ b/arch/mips/include/asm/mmu_context.h @@ -178,8 +178,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, * Mark current->active_mm as not "active" anymore. * We don't want to mislead possible IPI tlb flush routines. */ - cpu_clear(cpu, prev->cpu_vm_mask); - cpu_set(cpu, next->cpu_vm_mask); + cpumask_clear_cpu(cpu, mm_cpumask(prev)); + cpumask_set_cpu(cpu, mm_cpumask(next)); local_irq_restore(flags); } @@ -235,8 +235,8 @@ activate_mm(struct mm_struct *prev, struct mm_struct *next) TLBMISS_HANDLER_SETUP_PGD(next->pgd); /* mark mmu ownership change */ - cpu_clear(cpu, prev->cpu_vm_mask); - cpu_set(cpu, next->cpu_vm_mask); + cpumask_clear_cpu(cpu, mm_cpumask(prev)); + cpumask_set_cpu(cpu, mm_cpumask(next)); local_irq_restore(flags); } @@ -258,7 +258,7 @@ drop_mmu_context(struct mm_struct *mm, unsigned cpu) local_irq_save(flags); - if (cpu_isset(cpu, mm->cpu_vm_mask)) { + if (cpumask_test_cpu(cpu, mm_cpumask(mm))) { get_new_mmu_context(mm, cpu); #ifdef CONFIG_MIPS_MT_SMTC /* See comments for similar code above */ diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h index fd545547b8aa..9e09af34c8a8 100644 --- a/arch/mips/include/asm/smp-ops.h +++ b/arch/mips/include/asm/smp-ops.h @@ -19,7 +19,7 @@ struct task_struct; struct plat_smp_ops { void (*send_ipi_single)(int cpu, unsigned int action); - void (*send_ipi_mask)(cpumask_t mask, unsigned int action); + void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action); void (*init_secondary)(void); void (*smp_finish)(void); void (*cpus_done)(void); diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h index aaa2d4ab26dc..e15f11a09311 100644 --- a/arch/mips/include/asm/smp.h +++ b/arch/mips/include/asm/smp.h @@ -78,6 +78,6 @@ extern void play_dead(void); extern asmlinkage void smp_call_function_interrupt(void); extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #endif /* __ASM_SMP_H */ diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c index 653be061b9ec..31a470e7ac99 100644 --- a/arch/mips/kernel/smp-cmp.c +++ b/arch/mips/kernel/smp-cmp.c @@ -54,7 +54,10 @@ static int __init allowcpus(char *str) cpus_clear(cpu_allow_map); if (cpulist_parse(str, &cpu_allow_map) == 0) { cpu_set(0, cpu_allow_map); - cpus_and(cpu_possible_map, cpu_possible_map, cpu_allow_map); + unsigned int i; + for (i = 1; i < nr_cpu_ids; i++) + if (!cpumask_test_cpu(i, cpu_allow_map)) + set_cpu_possible(i, false); len = cpulist_scnprintf(buf, sizeof(buf)-1, &cpu_possible_map); buf[len] = '\0'; pr_debug("Allowable CPUs: %s\n", buf); @@ -136,11 +139,11 @@ void cmp_send_ipi_single(int cpu, unsigned int action) local_irq_restore(flags); } -static void cmp_send_ipi_mask(cpumask_t mask, unsigned int action) +static void cmp_send_ipi_mask(const struct cpumask *mask, unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) cmp_send_ipi_single(i, action); } diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c index 6f7ee5ac46ee..9538ca42e008 100644 --- a/arch/mips/kernel/smp-mt.c +++ b/arch/mips/kernel/smp-mt.c @@ -141,11 +141,11 @@ static void vsmp_send_ipi_single(int cpu, unsigned int action) local_irq_restore(flags); } -static void vsmp_send_ipi_mask(cpumask_t mask, unsigned int action) +static void vsmp_send_ipi_mask(const struct cpumask *mask, unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) vsmp_send_ipi_single(i, action); } diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c index 2508d55d68fd..00500fea2750 100644 --- a/arch/mips/kernel/smp-up.c +++ b/arch/mips/kernel/smp-up.c @@ -18,7 +18,8 @@ static void up_send_ipi_single(int cpu, unsigned int action) panic(KERN_ERR "%s called", __func__); } -static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action) +static inline void up_send_ipi_mask(const struct cpumask *mask, + unsigned int action) { panic(KERN_ERR "%s called", __func__); } diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index bc7d9b05e2f4..b2a7b81cba02 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -129,7 +129,7 @@ asmlinkage __cpuinit void start_secondary(void) cpu_idle(); } -void arch_send_call_function_ipi(cpumask_t mask) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION); } @@ -184,7 +184,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) mp_ops->prepare_cpus(max_cpus); set_cpu_sibling_map(0); #ifndef CONFIG_HOTPLUG_CPU - cpu_present_map = cpu_possible_map; + init_cpu_present(&cpu_possible_map); #endif } diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c index d6e4f656ad14..5da30b6a65b7 100644 --- a/arch/mips/mipssim/sim_smtc.c +++ b/arch/mips/mipssim/sim_smtc.c @@ -43,11 +43,12 @@ static void ssmtc_send_ipi_single(int cpu, unsigned int action) /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ } -static inline void ssmtc_send_ipi_mask(cpumask_t mask, unsigned int action) +static inline void ssmtc_send_ipi_mask(const struct cpumask *mask, + unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) ssmtc_send_ipi_single(i, action); } diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c index b165cdcb2818..d3914f2335de 100644 --- a/arch/mips/mm/c-octeon.c +++ b/arch/mips/mm/c-octeon.c @@ -79,7 +79,7 @@ static void octeon_flush_icache_all_cores(struct vm_area_struct *vma) * cores it has been used on */ if (vma) - mask = vma->vm_mm->cpu_vm_mask; + mask = *mm_cpumask(vma->vm_mm); else mask = cpu_online_map; cpu_clear(cpu, mask); diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c index 499ffe5475df..192cfd2a539c 100644 --- a/arch/mips/mti-malta/malta-smtc.c +++ b/arch/mips/mti-malta/malta-smtc.c @@ -21,11 +21,11 @@ static void msmtc_send_ipi_single(int cpu, unsigned int action) smtc_send_ipi(cpu, LINUX_SMP_IPI, action); } -static void msmtc_send_ipi_mask(cpumask_t mask, unsigned int action) +static void msmtc_send_ipi_mask(const struct cpumask *mask, unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) msmtc_send_ipi_single(i, action); } diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c index 8ace27716232..326fe7a392e8 100644 --- a/arch/mips/pmc-sierra/yosemite/smp.c +++ b/arch/mips/pmc-sierra/yosemite/smp.c @@ -97,11 +97,11 @@ static void yos_send_ipi_single(int cpu, unsigned int action) } } -static void yos_send_ipi_mask(cpumask_t mask, unsigned int action) +static void yos_send_ipi_mask(const struct cpumask *mask, unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) yos_send_ipi_single(i, action); } diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index 060d853d7b35..f61c164d1e67 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -421,7 +421,7 @@ static void __init node_mem_init(cnodeid_t node) /* * A node with nothing. We use it to avoid any special casing in - * node_to_cpumask + * cpumask_of_node */ static struct node_data null_node = { .hub = { diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index cbcd7eb83bd1..9aa8f2951df6 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c @@ -165,11 +165,11 @@ static void ip27_send_ipi_single(int destid, unsigned int action) REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq); } -static void ip27_send_ipi_mask(cpumask_t mask, unsigned int action) +static void ip27_send_ipi(const struct cpumask *mask, unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) ip27_send_ipi_single(i, action); } diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c index 314691648c97..47b347c992ea 100644 --- a/arch/mips/sibyte/bcm1480/smp.c +++ b/arch/mips/sibyte/bcm1480/smp.c @@ -82,11 +82,12 @@ static void bcm1480_send_ipi_single(int cpu, unsigned int action) __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]); } -static void bcm1480_send_ipi_mask(cpumask_t mask, unsigned int action) +static void bcm1480_send_ipi_mask(const struct cpumask *mask, + unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) bcm1480_send_ipi_single(i, action); } diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index cad14003b84f..c00a5cb1128d 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c @@ -70,11 +70,12 @@ static void sb1250_send_ipi_single(int cpu, unsigned int action) __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]); } -static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action) +static inline void sb1250_send_ipi_mask(const struct cpumask *mask, + unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) sb1250_send_ipi_single(i, action); } diff --git a/arch/mn10300/include/asm/gdb-stub.h b/arch/mn10300/include/asm/gdb-stub.h index e5a6368559af..556cce992548 100644 --- a/arch/mn10300/include/asm/gdb-stub.h +++ b/arch/mn10300/include/asm/gdb-stub.h @@ -109,7 +109,6 @@ extern asmlinkage int gdbstub_intercept(struct pt_regs *, enum exception_code); extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code); extern asmlinkage void __gdbstub_bug_trap(void); extern asmlinkage void __gdbstub_pause(void); -extern asmlinkage void start_kernel(void); #ifndef CONFIG_MN10300_CACHE_DISABLED extern asmlinkage void gdbstub_purge_cache(void); diff --git a/arch/mn10300/include/asm/mmu_context.h b/arch/mn10300/include/asm/mmu_context.h index a9e2e34f69b0..cb294c244de3 100644 --- a/arch/mn10300/include/asm/mmu_context.h +++ b/arch/mn10300/include/asm/mmu_context.h @@ -38,13 +38,13 @@ extern unsigned long mmu_context_cache[NR_CPUS]; #define enter_lazy_tlb(mm, tsk) do {} while (0) #ifdef CONFIG_SMP -#define cpu_ran_vm(cpu, task) \ - cpu_set((cpu), (task)->cpu_vm_mask) -#define cpu_maybe_ran_vm(cpu, task) \ - cpu_test_and_set((cpu), (task)->cpu_vm_mask) +#define cpu_ran_vm(cpu, mm) \ + cpumask_set_cpu((cpu), mm_cpumask(mm)) +#define cpu_maybe_ran_vm(cpu, mm) \ + cpumask_test_and_set_cpu((cpu), mm_cpumask(mm)) #else -#define cpu_ran_vm(cpu, task) do {} while (0) -#define cpu_maybe_ran_vm(cpu, task) true +#define cpu_ran_vm(cpu, mm) do {} while (0) +#define cpu_maybe_ran_vm(cpu, mm) true #endif /* CONFIG_SMP */ /* diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h index 21eb45a52629..2e73623feb6b 100644 --- a/arch/parisc/include/asm/smp.h +++ b/arch/parisc/include/asm/smp.h @@ -30,7 +30,6 @@ extern void smp_send_all_nop(void); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask #endif /* !ASSEMBLY */ diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index c25f73d1d842..435b58a848da 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -146,7 +146,7 @@ extern void smp_generic_take_timebase(void); extern struct smp_ops_t *smp_ops; extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 054a16d68082..0b3a0183df3a 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -17,11 +17,6 @@ static inline int cpu_to_node(int cpu) #define parent_node(node) (node) -static inline cpumask_t node_to_cpumask(int node) -{ - return numa_cpumask_lookup_table[node]; -} - #define cpumask_of_node(node) (&numa_cpumask_lookup_table[node]) int of_node_to_nid(struct device_node *device); @@ -36,11 +31,6 @@ static inline int pcibus_to_node(struct pci_bus *bus) } #endif -#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \ - CPU_MASK_ALL : \ - node_to_cpumask(pcibus_to_node(bus)) \ - ) - #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ cpu_all_mask : \ cpumask_of_node(pcibus_to_node(bus))) @@ -105,8 +95,6 @@ static inline void sysfs_remove_device_from_node(struct sys_device *dev, #ifdef CONFIG_PPC64 #include <asm/smp.h> -#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) -#define topology_core_siblings(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_core_id(cpu) (cpu_to_core_id(cpu)) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 02fed27af7f6..a5e0bc727f03 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -434,7 +434,7 @@ void __init smp_setup_cpu_maps(void) j, cpu, intserv[j]); cpu_set(cpu, cpu_present_map); set_hard_smp_processor_id(cpu, intserv[j]); - cpu_set(cpu, cpu_possible_map); + set_cpu_possible(cpu, true); cpu++; } } @@ -480,7 +480,7 @@ void __init smp_setup_cpu_maps(void) maxcpus); for (cpu = 0; cpu < maxcpus; cpu++) - cpu_set(cpu, cpu_possible_map); + set_cpu_possible(cpu, true); out: of_node_put(dn); } diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 0b47de07302d..d4f318721e65 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -189,11 +189,11 @@ void arch_send_call_function_single_ipi(int cpu) smp_ops->message_pass(cpu, PPC_MSG_CALL_FUNC_SINGLE); } -void arch_send_call_function_ipi(cpumask_t mask) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { unsigned int cpu; - for_each_cpu_mask(cpu, mask) + for_each_cpu(cpu, mask) smp_ops->message_pass(cpu, PPC_MSG_CALL_FUNCTION); } diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 6d4da7b46b41..da12c48ef1d0 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -952,7 +952,7 @@ void __init pmac_setup_smp(void) int cpu; for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu) - cpu_set(cpu, cpu_possible_map); + set_cpu_possible(cpu, true); smp_ops = &psurge_smp_ops; } #endif /* CONFIG_PPC32 */ diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index 72137bc907ac..8ebcf8836aec 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -87,7 +87,7 @@ extern struct mutex smp_cpu_state_mutex; extern int smp_cpu_polarization[]; extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #endif diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 5e0ad618dc45..6e7211abd950 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -9,7 +9,6 @@ const struct cpumask *cpu_coregroup_mask(unsigned int cpu); extern cpumask_t cpu_core_map[NR_CPUS]; -#define topology_core_siblings(cpu) (cpu_core_map[cpu]) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) int topology_set_cpu_management(int fc); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 2270730f5354..c058a4d1edfb 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -129,11 +129,11 @@ static void smp_ext_bitcall(int cpu, ec_bit_sig sig) udelay(10); } -void arch_send_call_function_ipi(cpumask_t mask) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { int cpu; - for_each_cpu_mask(cpu, mask) + for_each_cpu(cpu, mask) smp_ext_bitcall(cpu, ec_call_function); } diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h index ca64f43abe67..53ef26ced75f 100644 --- a/arch/sh/include/asm/smp.h +++ b/arch/sh/include/asm/smp.h @@ -44,7 +44,6 @@ void plat_send_ipi(unsigned int cpu, unsigned int message); void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask #else diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h index b69ee850906d..b2180f8752ce 100644 --- a/arch/sh/include/asm/topology.h +++ b/arch/sh/include/asm/topology.h @@ -31,7 +31,6 @@ #define cpu_to_node(cpu) ((void)(cpu),0) #define parent_node(node) ((void)(node),0) -#define node_to_cpumask(node) ((void)node, cpu_online_map) #define cpumask_of_node(node) ((void)node, cpu_online_mask) #define pcibus_to_node(bus) ((void)(bus), -1) diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h index becb6bf353a9..f49e11cd4ded 100644 --- a/arch/sparc/include/asm/smp_64.h +++ b/arch/sparc/include/asm/smp_64.h @@ -36,7 +36,6 @@ extern int sparc64_multi_core; extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask /* * General functions that each host system must provide. diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h index e5ea8d332421..0c35499efe36 100644 --- a/arch/sparc/include/asm/topology_64.h +++ b/arch/sparc/include/asm/topology_64.h @@ -12,22 +12,8 @@ static inline int cpu_to_node(int cpu) #define parent_node(node) (node) -static inline cpumask_t node_to_cpumask(int node) -{ - return numa_cpumask_lookup_table[node]; -} #define cpumask_of_node(node) (&numa_cpumask_lookup_table[node]) -/* - * Returns a pointer to the cpumask of CPUs on Node 'node'. - * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" - */ -#define node_to_cpumask_ptr(v, node) \ - cpumask_t *v = &(numa_cpumask_lookup_table[node]) - -#define node_to_cpumask_ptr_next(v, node) \ - v = &(numa_cpumask_lookup_table[node]) - struct pci_bus; #ifdef CONFIG_PCI extern int pcibus_to_node(struct pci_bus *pbus); @@ -72,8 +58,6 @@ static inline int pcibus_to_node(struct pci_bus *pbus) #ifdef CONFIG_SMP #define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id) #define topology_core_id(cpu) (cpu_data(cpu).core_id) -#define topology_core_siblings(cpu) (cpu_core_map[cpu]) -#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) #define mc_capable() (sparc64_multi_core) diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h index 54f42e8b0105..34d813011b7a 100644 --- a/arch/um/include/asm/mmu_context.h +++ b/arch/um/include/asm/mmu_context.h @@ -35,8 +35,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, unsigned cpu = smp_processor_id(); if(prev != next){ - cpu_clear(cpu, prev->cpu_vm_mask); - cpu_set(cpu, next->cpu_vm_mask); + cpumask_clear_cpu(cpu, mm_cpumask(prev)); + cpumask_set_cpu(cpu, mm_cpumask(next)); if(next != &init_mm) __switch_mm(&next->context.id); } diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 98351c78bc81..106bf27e2a9a 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -111,7 +111,7 @@ void smp_prepare_cpus(unsigned int maxcpus) int i; for (i = 0; i < ncpus; ++i) - cpu_set(i, cpu_possible_map); + set_cpu_possible(i, true); cpu_clear(me, cpu_online_map); cpu_set(me, cpu_online_map); diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h index d31c4a684078..33600a66755f 100644 --- a/arch/x86/include/asm/lguest_hcall.h +++ b/arch/x86/include/asm/lguest_hcall.h @@ -30,7 +30,7 @@ #include <asm/hw_irq.h> #include <asm/kvm_para.h> -/*G:031 But first, how does our Guest contact the Host to ask for privileged +/*G:030 But first, how does our Guest contact the Host to ask for privileged * operations? There are two ways: the direct way is to make a "hypercall", * to make requests of the Host Itself. * diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h index f923203dc39a..4a2d4e0c18d9 100644 --- a/arch/x86/include/asm/mmu_context.h +++ b/arch/x86/include/asm/mmu_context.h @@ -37,12 +37,12 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, if (likely(prev != next)) { /* stop flush ipis for the previous mm */ - cpu_clear(cpu, prev->cpu_vm_mask); + cpumask_clear_cpu(cpu, mm_cpumask(prev)); #ifdef CONFIG_SMP percpu_write(cpu_tlbstate.state, TLBSTATE_OK); percpu_write(cpu_tlbstate.active_mm, next); #endif - cpu_set(cpu, next->cpu_vm_mask); + cpumask_set_cpu(cpu, mm_cpumask(next)); /* Re-load page tables */ load_cr3(next->pgd); @@ -58,7 +58,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, percpu_write(cpu_tlbstate.state, TLBSTATE_OK); BUG_ON(percpu_read(cpu_tlbstate.active_mm) != next); - if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) { + if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next))) { /* We were in lazy tlb mode and leave_mm disabled * tlb flush IPI delivery. We must reload CR3 * to make sure to use no freed page tables. diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 6a84ed166aec..1e796782cd7b 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -121,7 +121,6 @@ static inline void arch_send_call_function_single_ipi(int cpu) smp_ops.send_call_func_single_ipi(cpu); } -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask) { smp_ops.send_call_func_ipi(mask); diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 8c44c232efcb..827b5207523e 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -63,6 +63,12 @@ struct cstate_entry { }; static struct cstate_entry *cpu_cstate_entry; /* per CPU ptr */ +/* Used for the cross-CPU calls */ +struct acpi_processor_cx_cross_cpu { + struct acpi_processor_cx *cx; + long retval; +}; + static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; #define MWAIT_SUBSTATE_MASK (0xf) @@ -77,10 +83,10 @@ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; #define NATIVE_CSTATE_BEYOND_HALT (2) -static long acpi_processor_ffh_cstate_probe_cpu(void *_cx) +static void acpi_processor_ffh_cstate_probe_cpu(void *_cxcc) { - struct acpi_processor_cx *cx = _cx; - long retval; + struct acpi_processor_cx_cross_cpu *cxcc = _cxcc; + struct acpi_processor_cx *cx = cxcc->cx; unsigned int eax, ebx, ecx, edx; unsigned int edx_part; unsigned int cstate_type; /* C-state type and not ACPI C-state type */ @@ -94,16 +100,16 @@ static long acpi_processor_ffh_cstate_probe_cpu(void *_cx) edx_part = edx >> (cstate_type * MWAIT_SUBSTATE_SIZE); num_cstate_subtype = edx_part & MWAIT_SUBSTATE_MASK; - retval = 0; + cxcc->retval = 0; if (num_cstate_subtype < (cx->address & MWAIT_SUBSTATE_MASK)) { - retval = -1; + cxcc->retval = -1; goto out; } /* mwait ecx extensions INTERRUPT_BREAK should be supported for C2/C3 */ if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) || !(ecx & CPUID5_ECX_INTERRUPT_BREAK)) { - retval = -1; + cxcc->retval = -1; goto out; } @@ -117,7 +123,7 @@ static long acpi_processor_ffh_cstate_probe_cpu(void *_cx) ACPI_CX_DESC_LEN, "ACPI FFH INTEL MWAIT 0x%x", cx->address); out: - return retval; + return; } int acpi_processor_ffh_cstate_probe(unsigned int cpu, @@ -125,6 +131,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu, { struct cstate_entry *percpu_entry; struct cpuinfo_x86 *c = &cpu_data(cpu); + struct acpi_processor_cx_cross_cpu cxcc = { .cx = cx, }; long retval; if (!cpu_cstate_entry || c->cpuid_level < CPUID_MWAIT_LEAF) @@ -137,13 +144,18 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu, percpu_entry->states[cx->index].eax = 0; percpu_entry->states[cx->index].ecx = 0; - /* Make sure we are running on right CPU */ + /* Run acpi_processor_ffh_cstate_probe_cpu() on the target CPU */ - retval = work_on_cpu(cpu, acpi_processor_ffh_cstate_probe_cpu, cx); + retval = smp_call_function_single(cpu, + acpi_processor_ffh_cstate_probe_cpu, &cxcc, 1); if (retval == 0) { - /* Use the hint in CST */ - percpu_entry->states[cx->index].eax = cx->address; - percpu_entry->states[cx->index].ecx = MWAIT_ECX_INTERRUPT_BREAK; + retval = cxcc.retval; + if (retval == 0) { + /* Use the hint in CST */ + percpu_entry->states[cx->index].eax = cx->address; + percpu_entry->states[cx->index].ecx = + MWAIT_ECX_INTERRUPT_BREAK; + } } return retval; } diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 4d0216fcb36c..41d79f77a1d6 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -215,17 +215,14 @@ static struct irq_cfg *get_one_free_irq_cfg(int node) cfg = kzalloc_node(sizeof(*cfg), GFP_ATOMIC, node); if (cfg) { - if (!alloc_cpumask_var_node(&cfg->domain, GFP_ATOMIC, node)) { + if (!zalloc_cpumask_var_node(&cfg->domain, GFP_ATOMIC, node)) { kfree(cfg); cfg = NULL; - } else if (!alloc_cpumask_var_node(&cfg->old_domain, + } else if (!zalloc_cpumask_var_node(&cfg->old_domain, GFP_ATOMIC, node)) { free_cpumask_var(cfg->domain); kfree(cfg); cfg = NULL; - } else { - cpumask_clear(cfg->domain); - cpumask_clear(cfg->old_domain); } } diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index 71f1d99a635d..ec6ef60cbd17 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -67,8 +67,8 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload) #ifdef CONFIG_SMP preempt_disable(); load_LDT(pc); - if (!cpus_equal(current->mm->cpu_vm_mask, - cpumask_of_cpu(smp_processor_id()))) + if (!cpumask_equal(mm_cpumask(current->mm), + cpumask_of(smp_processor_id()))) smp_call_function(flush_ldt, current->mm, 1); preempt_enable(); #else diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 994dd6a4a2a0..b8143acf30f3 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -572,10 +572,8 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c) void __init init_c1e_mask(void) { /* If we're using c1e_idle, we need to allocate c1e_mask. */ - if (pm_idle == c1e_idle) { - alloc_cpumask_var(&c1e_mask, GFP_KERNEL); - cpumask_clear(c1e_mask); - } + if (pm_idle == c1e_idle) + zalloc_cpumask_var(&c1e_mask, GFP_KERNEL); } static int __init idle_setup(char *str) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index de2cab132844..d1d9b0066a4a 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1088,7 +1088,6 @@ void __init x86_quirk_time_init(void) return; } - irq0.mask = cpumask_of_cpu(0); setup_irq(0, &irq0); } #endif /* CONFIG_X86_32 */ diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 2fecda69ee64..70bd79be115e 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1057,12 +1057,9 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus) #endif current_thread_info()->cpu = 0; /* needed? */ for_each_possible_cpu(i) { - alloc_cpumask_var(&per_cpu(cpu_sibling_map, i), GFP_KERNEL); - alloc_cpumask_var(&per_cpu(cpu_core_map, i), GFP_KERNEL); - alloc_cpumask_var(&cpu_data(i).llc_shared_map, GFP_KERNEL); - cpumask_clear(per_cpu(cpu_core_map, i)); - cpumask_clear(per_cpu(cpu_sibling_map, i)); - cpumask_clear(cpu_data(i).llc_shared_map); + zalloc_cpumask_var(&per_cpu(cpu_sibling_map, i), GFP_KERNEL); + zalloc_cpumask_var(&per_cpu(cpu_core_map, i), GFP_KERNEL); + zalloc_cpumask_var(&cpu_data(i).llc_shared_map, GFP_KERNEL); } set_cpu_sibling_map(0); diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 7bc65f0f62c4..0188fd37b6c0 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -1079,7 +1079,7 @@ static unsigned lguest_patch(u8 type, u16 clobber, void *ibuf, return insn_len; } -/*G:030 Once we get to lguest_init(), we know we're a Guest. The various +/*G:029 Once we get to lguest_init(), we know we're a Guest. The various * pv_ops structures in the kernel provide points for (almost) every routine we * have to override to avoid privileged instructions. */ __init void lguest_init(void) diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 821e97017e95..010b2e575002 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -59,7 +59,8 @@ void leave_mm(int cpu) { if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK) BUG(); - cpu_clear(cpu, percpu_read(cpu_tlbstate.active_mm)->cpu_vm_mask); + cpumask_clear_cpu(cpu, + mm_cpumask(percpu_read(cpu_tlbstate.active_mm))); load_cr3(swapper_pg_dir); } EXPORT_SYMBOL_GPL(leave_mm); @@ -235,8 +236,8 @@ void flush_tlb_current_task(void) preempt_disable(); local_flush_tlb(); - if (cpumask_any_but(&mm->cpu_vm_mask, smp_processor_id()) < nr_cpu_ids) - flush_tlb_others(&mm->cpu_vm_mask, mm, TLB_FLUSH_ALL); + if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids) + flush_tlb_others(mm_cpumask(mm), mm, TLB_FLUSH_ALL); preempt_enable(); } @@ -250,8 +251,8 @@ void flush_tlb_mm(struct mm_struct *mm) else leave_mm(smp_processor_id()); } - if (cpumask_any_but(&mm->cpu_vm_mask, smp_processor_id()) < nr_cpu_ids) - flush_tlb_others(&mm->cpu_vm_mask, mm, TLB_FLUSH_ALL); + if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids) + flush_tlb_others(mm_cpumask(mm), mm, TLB_FLUSH_ALL); preempt_enable(); } @@ -269,8 +270,8 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long va) leave_mm(smp_processor_id()); } - if (cpumask_any_but(&mm->cpu_vm_mask, smp_processor_id()) < nr_cpu_ids) - flush_tlb_others(&mm->cpu_vm_mask, mm, va); + if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids) + flush_tlb_others(mm_cpumask(mm), mm, va); preempt_enable(); } diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 4ceb28581652..6fa64cb1b01e 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1165,14 +1165,14 @@ static void xen_drop_mm_ref(struct mm_struct *mm) /* Get the "official" set of cpus referring to our pagetable. */ if (!alloc_cpumask_var(&mask, GFP_ATOMIC)) { for_each_online_cpu(cpu) { - if (!cpumask_test_cpu(cpu, &mm->cpu_vm_mask) + if (!cpumask_test_cpu(cpu, mm_cpumask(mm)) && per_cpu(xen_current_cr3, cpu) != __pa(mm->pgd)) continue; smp_call_function_single(cpu, drop_other_mm_ref, mm, 1); } return; } - cpumask_copy(mask, &mm->cpu_vm_mask); + cpumask_copy(mask, mm_cpumask(mm)); /* It's possible that a vcpu may have a stale reference to our cr3, because its in lazy mode, and it hasn't yet flushed diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 60e543d3234e..ac7f6b306460 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -509,7 +509,7 @@ int acpi_processor_preregister_performance( struct acpi_processor *match_pr; struct acpi_psd_package *match_pdomain; - if (!alloc_cpumask_var(&covered_cpus, GFP_KERNEL)) + if (!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)) return -ENOMEM; mutex_lock(&performance_mutex); @@ -556,7 +556,6 @@ int acpi_processor_preregister_performance( * Now that we have _PSD data from all CPUs, lets setup P-state * domain info. */ - cpumask_clear(covered_cpus); for_each_possible_cpu(i) { pr = per_cpu(processors, i); if (!pr) diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 16560014f7bd..aa1dd6a75a73 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -74,7 +74,7 @@ static int acpi_processor_update_tsd_coord(void) struct acpi_tsd_package *pdomain, *match_pdomain; struct acpi_processor_throttling *pthrottling, *match_pthrottling; - if (!alloc_cpumask_var(&covered_cpus, GFP_KERNEL)) + if (!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)) return -ENOMEM; /* @@ -102,7 +102,6 @@ static int acpi_processor_update_tsd_coord(void) if (retval) goto err_ret; - cpumask_clear(covered_cpus); for_each_possible_cpu(i) { pr = per_cpu(processors, i); if (!pr) @@ -852,10 +851,21 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) return 0; } +struct get_throttling { + struct acpi_processor *pr; + int ret; +}; + +static void get_throttling(void *_gt) +{ + struct get_throttling *gt = _gt; + + gt->ret = gt->pr->throttling.acpi_processor_get_throttling(gt->pr); +} + static int acpi_processor_get_throttling(struct acpi_processor *pr) { - cpumask_var_t saved_mask; - int ret; + struct get_throttling gt; if (!pr) return -EINVAL; @@ -863,21 +873,9 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr) if (!pr->flags.throttling) return -ENODEV; - if (!alloc_cpumask_var(&saved_mask, GFP_KERNEL)) - return -ENOMEM; - - /* - * Migrate task to the cpu pointed by pr. - */ - cpumask_copy(saved_mask, ¤t->cpus_allowed); - /* FIXME: use work_on_cpu() */ - set_cpus_allowed_ptr(current, cpumask_of(pr->id)); - ret = pr->throttling.acpi_processor_get_throttling(pr); - /* restore the previous state */ - set_cpus_allowed_ptr(current, saved_mask); - free_cpumask_var(saved_mask); - - return ret; + gt.pr = pr; + smp_call_function_single(pr->id, get_throttling, >, 1); + return gt.ret; } static int acpi_processor_get_fadt_info(struct acpi_processor *pr) @@ -1018,9 +1016,23 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, return 0; } +struct set_throttling_info { + struct acpi_processor *pr; + struct acpi_processor_throttling *p_throttling; + int target_state; + int ret; +}; + +static void set_throttling(void *_sti) +{ + struct set_throttling_info *s = _sti; + + s->ret = s->p_throttling->acpi_processor_set_throttling(s->pr, + s->target_state); +} + int acpi_processor_set_throttling(struct acpi_processor *pr, int state) { - cpumask_var_t saved_mask; int ret = 0; unsigned int i; struct acpi_processor *match_pr; @@ -1037,15 +1049,9 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) if ((state < 0) || (state > (pr->throttling.state_count - 1))) return -EINVAL; - if (!alloc_cpumask_var(&saved_mask, GFP_KERNEL)) + if (!alloc_cpumask_var(&online_throttling_cpus, GFP_KERNEL)) return -ENOMEM; - if (!alloc_cpumask_var(&online_throttling_cpus, GFP_KERNEL)) { - free_cpumask_var(saved_mask); - return -ENOMEM; - } - - cpumask_copy(saved_mask, ¤t->cpus_allowed); t_state.target_state = state; p_throttling = &(pr->throttling); cpumask_and(online_throttling_cpus, cpu_online_mask, @@ -1067,10 +1073,10 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) * it can be called only for the cpu pointed by pr. */ if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) { - /* FIXME: use work_on_cpu() */ - set_cpus_allowed_ptr(current, cpumask_of(pr->id)); - ret = p_throttling->acpi_processor_set_throttling(pr, - t_state.target_state); + struct set_throttling_info sti + = { pr, p_throttling, t_state.target_state }; + smp_call_function_single(pr->id, set_throttling, &sti, 1); + ret = sti.ret; } else { /* * When the T-state coordination is SW_ALL or HW_ALL, @@ -1078,6 +1084,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) * cpus. */ for_each_cpu(i, online_throttling_cpus) { + struct set_throttling_info sti; + match_pr = per_cpu(processors, i); /* * If the pointer is invalid, we will report the @@ -1099,11 +1107,11 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) continue; } t_state.cpu = i; - /* FIXME: use work_on_cpu() */ - set_cpus_allowed_ptr(current, cpumask_of(i)); - ret = match_pr->throttling. - acpi_processor_set_throttling( - match_pr, t_state.target_state); + sti.pr = match_pr; + sti.p_throttling = &match_pr->throttling; + sti.target_state = t_state.target_state; + smp_call_function_single(i, set_throttling, &sti, 1); + ret = sti.ret; } } /* @@ -1117,11 +1125,6 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) acpi_processor_throttling_notifier(THROTTLING_POSTCHANGE, &t_state); } - /* restore the previous state */ - /* FIXME: use work_on_cpu() */ - set_cpus_allowed_ptr(current, saved_mask); - free_cpumask_var(online_throttling_cpus); - free_cpumask_var(saved_mask); return ret; } diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 43db3ea15b54..fbeefb68a31f 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -213,7 +213,7 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode, * Only allow the generic SCSI ioctls if the host can support it. */ if (!virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_SCSI)) - return -ENOIOCTLCMD; + return -ENOTTY; return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp); } @@ -360,6 +360,9 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2); blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2); + /* No need to bounce any requests */ + blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY); + /* No real sector limit. */ blk_queue_max_sectors(vblk->disk->queue, -1U); diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c index 18d65fb42ee7..b24ccb546e59 100644 --- a/drivers/firmware/dcdbas.c +++ b/drivers/firmware/dcdbas.c @@ -237,6 +237,22 @@ static ssize_t host_control_on_shutdown_store(struct device *dev, return count; } +static void generate_smi(void *_smi_cmd) +{ + struct smi_cmd *smi_cmd = _smi_cmd; + + /* generate SMI */ + asm volatile ( + "outb %b0,%w1" + : /* no output args */ + : "a" (smi_cmd->command_code), + "d" (smi_cmd->command_address), + "b" (smi_cmd->ebx), + "c" (smi_cmd->ecx) + : "memory" + ); +} + /** * dcdbas_smi_request: generate SMI request * @@ -244,9 +260,6 @@ static ssize_t host_control_on_shutdown_store(struct device *dev, */ int dcdbas_smi_request(struct smi_cmd *smi_cmd) { - cpumask_var_t old_mask; - int ret = 0; - if (smi_cmd->magic != SMI_CMD_MAGIC) { dev_info(&dcdbas_pdev->dev, "%s: invalid magic value\n", __func__); @@ -254,35 +267,9 @@ int dcdbas_smi_request(struct smi_cmd *smi_cmd) } /* SMI requires CPU 0 */ - if (!alloc_cpumask_var(&old_mask, GFP_KERNEL)) - return -ENOMEM; - - cpumask_copy(old_mask, ¤t->cpus_allowed); - set_cpus_allowed_ptr(current, cpumask_of(0)); - if (smp_processor_id() != 0) { - dev_dbg(&dcdbas_pdev->dev, "%s: failed to get CPU 0\n", - __func__); - ret = -EBUSY; - goto out; - } - - /* generate SMI */ - asm volatile ( - "outb %b0,%w1" - : /* no output args */ - : "a" (smi_cmd->command_code), - "d" (smi_cmd->command_address), - "b" (smi_cmd->ebx), - "c" (smi_cmd->ecx) - : "memory" - ); - -out: - set_cpus_allowed_ptr(current, old_mask); - free_cpumask_var(old_mask); - return ret; + smp_call_function_single(0, generate_smi, smi_cmd, 1); + return 0; } - /** * smi_request_store: * diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 343e8da1fa30..1f1757118a5c 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -884,13 +884,12 @@ static int efx_wanted_rx_queues(void) int count; int cpu; - if (unlikely(!alloc_cpumask_var(&core_mask, GFP_KERNEL))) { + if (unlikely(!zalloc_cpumask_var(&core_mask, GFP_KERNEL))) { printk(KERN_WARNING "sfc: RSS disabled due to allocation failure\n"); return 1; } - cpumask_clear(core_mask); count = 0; for_each_online_cpu(cpu) { if (!cpumask_test_cpu(cpu, core_mask)) { diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index 8574622e36a5..c9e2ae90f195 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c @@ -154,9 +154,8 @@ int sync_start(void) { int err; - if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL)) + if (!zalloc_cpumask_var(&marked_cpus, GFP_KERNEL)) return -ENOMEM; - cpumask_clear(marked_cpus); start_cpu_work(); diff --git a/include/asm-generic/topology.h b/include/asm-generic/topology.h index 88bada2ebc4b..510df36dd5d4 100644 --- a/include/asm-generic/topology.h +++ b/include/asm-generic/topology.h @@ -37,9 +37,6 @@ #ifndef parent_node #define parent_node(node) ((void)(node),0) #endif -#ifndef node_to_cpumask -#define node_to_cpumask(node) ((void)node, cpu_online_map) -#endif #ifndef cpumask_of_node #define cpumask_of_node(node) ((void)node, cpu_online_mask) #endif @@ -55,18 +52,4 @@ #endif /* CONFIG_NUMA */ -/* - * returns pointer to cpumask for specified node - * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" - */ -#ifndef node_to_cpumask_ptr - -#define node_to_cpumask_ptr(v, node) \ - cpumask_t _##v = node_to_cpumask(node); \ - const cpumask_t *v = &_##v - -#define node_to_cpumask_ptr_next(v, node) \ - _##v = node_to_cpumask(node) -#endif - #endif /* _ASM_GENERIC_TOPOLOGY_H */ diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index c5ac87ca7bc6..5b44e9fe510d 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -3,444 +3,37 @@ /* * Cpumasks provide a bitmap suitable for representing the - * set of CPU's in a system, one bit position per CPU number. - * - * The new cpumask_ ops take a "struct cpumask *"; the old ones - * use cpumask_t. - * - * See detailed comments in the file linux/bitmap.h describing the - * data type on which these cpumasks are based. - * - * For details of cpumask_scnprintf() and cpumask_parse_user(), - * see bitmap_scnprintf() and bitmap_parse_user() in lib/bitmap.c. - * For details of cpulist_scnprintf() and cpulist_parse(), see - * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c. - * For details of cpu_remap(), see bitmap_bitremap in lib/bitmap.c - * For details of cpus_remap(), see bitmap_remap in lib/bitmap.c. - * For details of cpus_onto(), see bitmap_onto in lib/bitmap.c. - * For details of cpus_fold(), see bitmap_fold in lib/bitmap.c. - * - * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - * Note: The alternate operations with the suffix "_nr" are used - * to limit the range of the loop to nr_cpu_ids instead of - * NR_CPUS when NR_CPUS > 64 for performance reasons. - * If NR_CPUS is <= 64 then most assembler bitmask - * operators execute faster with a constant range, so - * the operator will continue to use NR_CPUS. - * - * Another consideration is that nr_cpu_ids is initialized - * to NR_CPUS and isn't lowered until the possible cpus are - * discovered (including any disabled cpus). So early uses - * will span the entire range of NR_CPUS. - * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - * - * The obsolescent cpumask operations are: - * - * void cpu_set(cpu, mask) turn on bit 'cpu' in mask - * void cpu_clear(cpu, mask) turn off bit 'cpu' in mask - * void cpus_setall(mask) set all bits - * void cpus_clear(mask) clear all bits - * int cpu_isset(cpu, mask) true iff bit 'cpu' set in mask - * int cpu_test_and_set(cpu, mask) test and set bit 'cpu' in mask - * - * void cpus_and(dst, src1, src2) dst = src1 & src2 [intersection] - * void cpus_or(dst, src1, src2) dst = src1 | src2 [union] - * void cpus_xor(dst, src1, src2) dst = src1 ^ src2 - * void cpus_andnot(dst, src1, src2) dst = src1 & ~src2 - * void cpus_complement(dst, src) dst = ~src - * - * int cpus_equal(mask1, mask2) Does mask1 == mask2? - * int cpus_intersects(mask1, mask2) Do mask1 and mask2 intersect? - * int cpus_subset(mask1, mask2) Is mask1 a subset of mask2? - * int cpus_empty(mask) Is mask empty (no bits sets)? - * int cpus_full(mask) Is mask full (all bits sets)? - * int cpus_weight(mask) Hamming weigh - number of set bits - * int cpus_weight_nr(mask) Same using nr_cpu_ids instead of NR_CPUS - * - * void cpus_shift_right(dst, src, n) Shift right - * void cpus_shift_left(dst, src, n) Shift left - * - * int first_cpu(mask) Number lowest set bit, or NR_CPUS - * int next_cpu(cpu, mask) Next cpu past 'cpu', or NR_CPUS - * int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids - * - * cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set - * (can be used as an lvalue) - * CPU_MASK_ALL Initializer - all bits set - * CPU_MASK_NONE Initializer - no bits set - * unsigned long *cpus_addr(mask) Array of unsigned long's in mask - * - * CPUMASK_ALLOC kmalloc's a structure that is a composite of many cpumask_t - * variables, and CPUMASK_PTR provides pointers to each field. - * - * The structure should be defined something like this: - * struct my_cpumasks { - * cpumask_t mask1; - * cpumask_t mask2; - * }; - * - * Usage is then: - * CPUMASK_ALLOC(my_cpumasks); - * CPUMASK_PTR(mask1, my_cpumasks); - * CPUMASK_PTR(mask2, my_cpumasks); - * - * --- DO NOT reference cpumask_t pointers until this check --- - * if (my_cpumasks == NULL) - * "kmalloc failed"... - * - * References are now pointers to the cpumask_t variables (*mask1, ...) - * - *if NR_CPUS > BITS_PER_LONG - * CPUMASK_ALLOC(m) Declares and allocates struct m *m = - * kmalloc(sizeof(*m), GFP_KERNEL) - * CPUMASK_FREE(m) Macro for kfree(m) - *else - * CPUMASK_ALLOC(m) Declares struct m _m, *m = &_m - * CPUMASK_FREE(m) Nop - *endif - * CPUMASK_PTR(v, m) Declares cpumask_t *v = &(m->v) - * ------------------------------------------------------------------------ - * - * int cpumask_scnprintf(buf, len, mask) Format cpumask for printing - * int cpumask_parse_user(ubuf, ulen, mask) Parse ascii string as cpumask - * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing - * int cpulist_parse(buf, map) Parse ascii string as cpulist - * int cpu_remap(oldbit, old, new) newbit = map(old, new)(oldbit) - * void cpus_remap(dst, src, old, new) *dst = map(old, new)(src) - * void cpus_onto(dst, orig, relmap) *dst = orig relative to relmap - * void cpus_fold(dst, orig, sz) dst bits = orig bits mod sz - * - * for_each_cpu_mask(cpu, mask) for-loop cpu over mask using NR_CPUS - * for_each_cpu_mask_nr(cpu, mask) for-loop cpu over mask using nr_cpu_ids - * - * int num_online_cpus() Number of online CPUs - * int num_possible_cpus() Number of all possible CPUs - * int num_present_cpus() Number of present CPUs - * - * int cpu_online(cpu) Is some cpu online? - * int cpu_possible(cpu) Is some cpu possible? - * int cpu_present(cpu) Is some cpu present (can schedule)? - * - * int any_online_cpu(mask) First online cpu in mask - * - * for_each_possible_cpu(cpu) for-loop cpu over cpu_possible_map - * for_each_online_cpu(cpu) for-loop cpu over cpu_online_map - * for_each_present_cpu(cpu) for-loop cpu over cpu_present_map - * - * Subtlety: - * 1) The 'type-checked' form of cpu_isset() causes gcc (3.3.2, anyway) - * to generate slightly worse code. Note for example the additional - * 40 lines of assembly code compiling the "for each possible cpu" - * loops buried in the disk_stat_read() macros calls when compiling - * drivers/block/genhd.c (arch i386, CONFIG_SMP=y). So use a simple - * one-line #define for cpu_isset(), instead of wrapping an inline - * inside a macro, the way we do the other calls. + * set of CPU's in a system, one bit position per CPU number. In general, + * only nr_cpu_ids (<= NR_CPUS) bits are valid. */ - #include <linux/kernel.h> #include <linux/threads.h> #include <linux/bitmap.h> typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t; -extern cpumask_t _unused_cpumask_arg_; - -#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -#define cpu_set(cpu, dst) __cpu_set((cpu), &(dst)) -static inline void __cpu_set(int cpu, volatile cpumask_t *dstp) -{ - set_bit(cpu, dstp->bits); -} - -#define cpu_clear(cpu, dst) __cpu_clear((cpu), &(dst)) -static inline void __cpu_clear(int cpu, volatile cpumask_t *dstp) -{ - clear_bit(cpu, dstp->bits); -} - -#define cpus_setall(dst) __cpus_setall(&(dst), NR_CPUS) -static inline void __cpus_setall(cpumask_t *dstp, int nbits) -{ - bitmap_fill(dstp->bits, nbits); -} - -#define cpus_clear(dst) __cpus_clear(&(dst), NR_CPUS) -static inline void __cpus_clear(cpumask_t *dstp, int nbits) -{ - bitmap_zero(dstp->bits, nbits); -} - -/* No static inline type checking - see Subtlety (1) above. */ -#define cpu_isset(cpu, cpumask) test_bit((cpu), (cpumask).bits) - -#define cpu_test_and_set(cpu, cpumask) __cpu_test_and_set((cpu), &(cpumask)) -static inline int __cpu_test_and_set(int cpu, cpumask_t *addr) -{ - return test_and_set_bit(cpu, addr->bits); -} - -#define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_and(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_or(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - bitmap_or(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_xor(dst, src1, src2) __cpus_xor(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - bitmap_xor(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_andnot(dst, src1, src2) \ - __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS) -static inline void __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits); -} - -#define cpus_complement(dst, src) __cpus_complement(&(dst), &(src), NR_CPUS) -static inline void __cpus_complement(cpumask_t *dstp, - const cpumask_t *srcp, int nbits) -{ - bitmap_complement(dstp->bits, srcp->bits, nbits); -} - -#define cpus_equal(src1, src2) __cpus_equal(&(src1), &(src2), NR_CPUS) -static inline int __cpus_equal(const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - return bitmap_equal(src1p->bits, src2p->bits, nbits); -} - -#define cpus_intersects(src1, src2) __cpus_intersects(&(src1), &(src2), NR_CPUS) -static inline int __cpus_intersects(const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - return bitmap_intersects(src1p->bits, src2p->bits, nbits); -} - -#define cpus_subset(src1, src2) __cpus_subset(&(src1), &(src2), NR_CPUS) -static inline int __cpus_subset(const cpumask_t *src1p, - const cpumask_t *src2p, int nbits) -{ - return bitmap_subset(src1p->bits, src2p->bits, nbits); -} - -#define cpus_empty(src) __cpus_empty(&(src), NR_CPUS) -static inline int __cpus_empty(const cpumask_t *srcp, int nbits) -{ - return bitmap_empty(srcp->bits, nbits); -} - -#define cpus_full(cpumask) __cpus_full(&(cpumask), NR_CPUS) -static inline int __cpus_full(const cpumask_t *srcp, int nbits) -{ - return bitmap_full(srcp->bits, nbits); -} - -#define cpus_weight(cpumask) __cpus_weight(&(cpumask), NR_CPUS) -static inline int __cpus_weight(const cpumask_t *srcp, int nbits) -{ - return bitmap_weight(srcp->bits, nbits); -} - -#define cpus_shift_right(dst, src, n) \ - __cpus_shift_right(&(dst), &(src), (n), NR_CPUS) -static inline void __cpus_shift_right(cpumask_t *dstp, - const cpumask_t *srcp, int n, int nbits) -{ - bitmap_shift_right(dstp->bits, srcp->bits, n, nbits); -} - -#define cpus_shift_left(dst, src, n) \ - __cpus_shift_left(&(dst), &(src), (n), NR_CPUS) -static inline void __cpus_shift_left(cpumask_t *dstp, - const cpumask_t *srcp, int n, int nbits) -{ - bitmap_shift_left(dstp->bits, srcp->bits, n, nbits); -} -#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ /** - * to_cpumask - convert an NR_CPUS bitmap to a struct cpumask * - * @bitmap: the bitmap - * - * There are a few places where cpumask_var_t isn't appropriate and - * static cpumasks must be used (eg. very early boot), yet we don't - * expose the definition of 'struct cpumask'. - * - * This does the conversion, and can be used as a constant initializer. - */ -#define to_cpumask(bitmap) \ - ((struct cpumask *)(1 ? (bitmap) \ - : (void *)sizeof(__check_is_bitmap(bitmap)))) - -static inline int __check_is_bitmap(const unsigned long *bitmap) -{ - return 1; -} - -/* - * Special-case data structure for "single bit set only" constant CPU masks. + * cpumask_bits - get the bits in a cpumask + * @maskp: the struct cpumask * * - * We pre-generate all the 64 (or 32) possible bit positions, with enough - * padding to the left and the right, and return the constant pointer - * appropriately offset. - */ -extern const unsigned long - cpu_bit_bitmap[BITS_PER_LONG+1][BITS_TO_LONGS(NR_CPUS)]; - -static inline const struct cpumask *get_cpu_mask(unsigned int cpu) -{ - const unsigned long *p = cpu_bit_bitmap[1 + cpu % BITS_PER_LONG]; - p -= cpu / BITS_PER_LONG; - return to_cpumask(p); -} - -#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -/* - * In cases where we take the address of the cpumask immediately, - * gcc optimizes it out (it's a constant) and there's no huge stack - * variable created: + * You should only assume nr_cpu_ids bits of this mask are valid. This is + * a macro so it's const-correct. */ -#define cpumask_of_cpu(cpu) (*get_cpu_mask(cpu)) - - -#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS) - -#if NR_CPUS <= BITS_PER_LONG - -#define CPU_MASK_ALL \ -(cpumask_t) { { \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ -} } - -#define CPU_MASK_ALL_PTR (&CPU_MASK_ALL) - -#else - -#define CPU_MASK_ALL \ -(cpumask_t) { { \ - [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ -} } - -/* cpu_mask_all is in init/main.c */ -extern cpumask_t cpu_mask_all; -#define CPU_MASK_ALL_PTR (&cpu_mask_all) - -#endif - -#define CPU_MASK_NONE \ -(cpumask_t) { { \ - [0 ... BITS_TO_LONGS(NR_CPUS)-1] = 0UL \ -} } - -#define CPU_MASK_CPU0 \ -(cpumask_t) { { \ - [0] = 1UL \ -} } - -#define cpus_addr(src) ((src).bits) - -#if NR_CPUS > BITS_PER_LONG -#define CPUMASK_ALLOC(m) struct m *m = kmalloc(sizeof(*m), GFP_KERNEL) -#define CPUMASK_FREE(m) kfree(m) -#else -#define CPUMASK_ALLOC(m) struct m _m, *m = &_m -#define CPUMASK_FREE(m) -#endif -#define CPUMASK_PTR(v, m) cpumask_t *v = &(m->v) - -#define cpu_remap(oldbit, old, new) \ - __cpu_remap((oldbit), &(old), &(new), NR_CPUS) -static inline int __cpu_remap(int oldbit, - const cpumask_t *oldp, const cpumask_t *newp, int nbits) -{ - return bitmap_bitremap(oldbit, oldp->bits, newp->bits, nbits); -} - -#define cpus_remap(dst, src, old, new) \ - __cpus_remap(&(dst), &(src), &(old), &(new), NR_CPUS) -static inline void __cpus_remap(cpumask_t *dstp, const cpumask_t *srcp, - const cpumask_t *oldp, const cpumask_t *newp, int nbits) -{ - bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits); -} - -#define cpus_onto(dst, orig, relmap) \ - __cpus_onto(&(dst), &(orig), &(relmap), NR_CPUS) -static inline void __cpus_onto(cpumask_t *dstp, const cpumask_t *origp, - const cpumask_t *relmapp, int nbits) -{ - bitmap_onto(dstp->bits, origp->bits, relmapp->bits, nbits); -} - -#define cpus_fold(dst, orig, sz) \ - __cpus_fold(&(dst), &(orig), sz, NR_CPUS) -static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp, - int sz, int nbits) -{ - bitmap_fold(dstp->bits, origp->bits, sz, nbits); -} -#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ +#define cpumask_bits(maskp) ((maskp)->bits) #if NR_CPUS == 1 - #define nr_cpu_ids 1 -#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -#define first_cpu(src) ({ (void)(src); 0; }) -#define next_cpu(n, src) ({ (void)(src); 1; }) -#define any_online_cpu(mask) 0 -#define for_each_cpu_mask(cpu, mask) \ - for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) -#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ -#else /* NR_CPUS > 1 */ - +#else extern int nr_cpu_ids; -#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -int __first_cpu(const cpumask_t *srcp); -int __next_cpu(int n, const cpumask_t *srcp); -int __any_online_cpu(const cpumask_t *mask); - -#define first_cpu(src) __first_cpu(&(src)) -#define next_cpu(n, src) __next_cpu((n), &(src)) -#define any_online_cpu(mask) __any_online_cpu(&(mask)) -#define for_each_cpu_mask(cpu, mask) \ - for ((cpu) = -1; \ - (cpu) = next_cpu((cpu), (mask)), \ - (cpu) < NR_CPUS; ) -#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ #endif -#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -#if NR_CPUS <= 64 - -#define next_cpu_nr(n, src) next_cpu(n, src) -#define cpus_weight_nr(cpumask) cpus_weight(cpumask) -#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask) - -#else /* NR_CPUS > 64 */ - -int __next_cpu_nr(int n, const cpumask_t *srcp); -#define next_cpu_nr(n, src) __next_cpu_nr((n), &(src)) -#define cpus_weight_nr(cpumask) __cpus_weight(&(cpumask), nr_cpu_ids) -#define for_each_cpu_mask_nr(cpu, mask) \ - for ((cpu) = -1; \ - (cpu) = next_cpu_nr((cpu), (mask)), \ - (cpu) < nr_cpu_ids; ) - -#endif /* NR_CPUS > 64 */ -#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ +#ifdef CONFIG_CPUMASK_OFFSTACK +/* Assuming NR_CPUS is huge, a runtime limit is more efficient. Also, + * not all bits may be allocated. */ +#define nr_cpumask_bits nr_cpu_ids +#else +#define nr_cpumask_bits NR_CPUS +#endif /* * The following particular system cpumasks and operations manage @@ -487,12 +80,6 @@ extern const struct cpumask *const cpu_online_mask; extern const struct cpumask *const cpu_present_mask; extern const struct cpumask *const cpu_active_mask; -/* These strip const, as traditionally they weren't const. */ -#define cpu_possible_map (*(cpumask_t *)cpu_possible_mask) -#define cpu_online_map (*(cpumask_t *)cpu_online_mask) -#define cpu_present_map (*(cpumask_t *)cpu_present_mask) -#define cpu_active_map (*(cpumask_t *)cpu_active_mask) - #if NR_CPUS > 1 #define num_online_cpus() cpumask_weight(cpu_online_mask) #define num_possible_cpus() cpumask_weight(cpu_possible_mask) @@ -511,35 +98,6 @@ extern const struct cpumask *const cpu_active_mask; #define cpu_active(cpu) ((cpu) == 0) #endif -#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) - -/* These are the new versions of the cpumask operators: passed by pointer. - * The older versions will be implemented in terms of these, then deleted. */ -#define cpumask_bits(maskp) ((maskp)->bits) - -#if NR_CPUS <= BITS_PER_LONG -#define CPU_BITS_ALL \ -{ \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ -} - -#else /* NR_CPUS > BITS_PER_LONG */ - -#define CPU_BITS_ALL \ -{ \ - [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \ - [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ -} -#endif /* NR_CPUS > BITS_PER_LONG */ - -#ifdef CONFIG_CPUMASK_OFFSTACK -/* Assuming NR_CPUS is huge, a runtime limit is more efficient. Also, - * not all bits may be allocated. */ -#define nr_cpumask_bits nr_cpu_ids -#else -#define nr_cpumask_bits NR_CPUS -#endif - /* verify cpu argument to cpumask_* operators */ static inline unsigned int cpumask_check(unsigned int cpu) { @@ -1088,4 +646,241 @@ void set_cpu_active(unsigned int cpu, bool active); void init_cpu_present(const struct cpumask *src); void init_cpu_possible(const struct cpumask *src); void init_cpu_online(const struct cpumask *src); + +/** + * to_cpumask - convert an NR_CPUS bitmap to a struct cpumask * + * @bitmap: the bitmap + * + * There are a few places where cpumask_var_t isn't appropriate and + * static cpumasks must be used (eg. very early boot), yet we don't + * expose the definition of 'struct cpumask'. + * + * This does the conversion, and can be used as a constant initializer. + */ +#define to_cpumask(bitmap) \ + ((struct cpumask *)(1 ? (bitmap) \ + : (void *)sizeof(__check_is_bitmap(bitmap)))) + +static inline int __check_is_bitmap(const unsigned long *bitmap) +{ + return 1; +} + +/* + * Special-case data structure for "single bit set only" constant CPU masks. + * + * We pre-generate all the 64 (or 32) possible bit positions, with enough + * padding to the left and the right, and return the constant pointer + * appropriately offset. + */ +extern const unsigned long + cpu_bit_bitmap[BITS_PER_LONG+1][BITS_TO_LONGS(NR_CPUS)]; + +static inline const struct cpumask *get_cpu_mask(unsigned int cpu) +{ + const unsigned long *p = cpu_bit_bitmap[1 + cpu % BITS_PER_LONG]; + p -= cpu / BITS_PER_LONG; + return to_cpumask(p); +} + +#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) + +#if NR_CPUS <= BITS_PER_LONG +#define CPU_BITS_ALL \ +{ \ + [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ +} + +#else /* NR_CPUS > BITS_PER_LONG */ + +#define CPU_BITS_ALL \ +{ \ + [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \ + [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ +} +#endif /* NR_CPUS > BITS_PER_LONG */ + +/* + * + * From here down, all obsolete. Use cpumask_ variants! + * + */ +#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS +/* These strip const, as traditionally they weren't const. */ +#define cpu_possible_map (*(cpumask_t *)cpu_possible_mask) +#define cpu_online_map (*(cpumask_t *)cpu_online_mask) +#define cpu_present_map (*(cpumask_t *)cpu_present_mask) +#define cpu_active_map (*(cpumask_t *)cpu_active_mask) + +#define cpumask_of_cpu(cpu) (*get_cpu_mask(cpu)) + +#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS) + +#if NR_CPUS <= BITS_PER_LONG + +#define CPU_MASK_ALL \ +(cpumask_t) { { \ + [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ +} } + +#else + +#define CPU_MASK_ALL \ +(cpumask_t) { { \ + [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \ + [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \ +} } + +#endif + +#define CPU_MASK_NONE \ +(cpumask_t) { { \ + [0 ... BITS_TO_LONGS(NR_CPUS)-1] = 0UL \ +} } + +#define CPU_MASK_CPU0 \ +(cpumask_t) { { \ + [0] = 1UL \ +} } + +#if NR_CPUS == 1 +#define first_cpu(src) ({ (void)(src); 0; }) +#define next_cpu(n, src) ({ (void)(src); 1; }) +#define any_online_cpu(mask) 0 +#define for_each_cpu_mask(cpu, mask) \ + for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) +#else /* NR_CPUS > 1 */ +int __first_cpu(const cpumask_t *srcp); +int __next_cpu(int n, const cpumask_t *srcp); +int __any_online_cpu(const cpumask_t *mask); + +#define first_cpu(src) __first_cpu(&(src)) +#define next_cpu(n, src) __next_cpu((n), &(src)) +#define any_online_cpu(mask) __any_online_cpu(&(mask)) +#define for_each_cpu_mask(cpu, mask) \ + for ((cpu) = -1; \ + (cpu) = next_cpu((cpu), (mask)), \ + (cpu) < NR_CPUS; ) +#endif /* SMP */ + +#if NR_CPUS <= 64 + +#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask) + +#else /* NR_CPUS > 64 */ + +int __next_cpu_nr(int n, const cpumask_t *srcp); +#define for_each_cpu_mask_nr(cpu, mask) \ + for ((cpu) = -1; \ + (cpu) = __next_cpu_nr((cpu), &(mask)), \ + (cpu) < nr_cpu_ids; ) + +#endif /* NR_CPUS > 64 */ + +#define cpus_addr(src) ((src).bits) + +#define cpu_set(cpu, dst) __cpu_set((cpu), &(dst)) +static inline void __cpu_set(int cpu, volatile cpumask_t *dstp) +{ + set_bit(cpu, dstp->bits); +} + +#define cpu_clear(cpu, dst) __cpu_clear((cpu), &(dst)) +static inline void __cpu_clear(int cpu, volatile cpumask_t *dstp) +{ + clear_bit(cpu, dstp->bits); +} + +#define cpus_setall(dst) __cpus_setall(&(dst), NR_CPUS) +static inline void __cpus_setall(cpumask_t *dstp, int nbits) +{ + bitmap_fill(dstp->bits, nbits); +} + +#define cpus_clear(dst) __cpus_clear(&(dst), NR_CPUS) +static inline void __cpus_clear(cpumask_t *dstp, int nbits) +{ + bitmap_zero(dstp->bits, nbits); +} + +/* No static inline type checking - see Subtlety (1) above. */ +#define cpu_isset(cpu, cpumask) test_bit((cpu), (cpumask).bits) + +#define cpu_test_and_set(cpu, cpumask) __cpu_test_and_set((cpu), &(cpumask)) +static inline int __cpu_test_and_set(int cpu, cpumask_t *addr) +{ + return test_and_set_bit(cpu, addr->bits); +} + +#define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS) +static inline void __cpus_and(cpumask_t *dstp, const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits); +} + +#define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS) +static inline void __cpus_or(cpumask_t *dstp, const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + bitmap_or(dstp->bits, src1p->bits, src2p->bits, nbits); +} + +#define cpus_xor(dst, src1, src2) __cpus_xor(&(dst), &(src1), &(src2), NR_CPUS) +static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + bitmap_xor(dstp->bits, src1p->bits, src2p->bits, nbits); +} + +#define cpus_andnot(dst, src1, src2) \ + __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS) +static inline void __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits); +} + +#define cpus_equal(src1, src2) __cpus_equal(&(src1), &(src2), NR_CPUS) +static inline int __cpus_equal(const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + return bitmap_equal(src1p->bits, src2p->bits, nbits); +} + +#define cpus_intersects(src1, src2) __cpus_intersects(&(src1), &(src2), NR_CPUS) +static inline int __cpus_intersects(const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + return bitmap_intersects(src1p->bits, src2p->bits, nbits); +} + +#define cpus_subset(src1, src2) __cpus_subset(&(src1), &(src2), NR_CPUS) +static inline int __cpus_subset(const cpumask_t *src1p, + const cpumask_t *src2p, int nbits) +{ + return bitmap_subset(src1p->bits, src2p->bits, nbits); +} + +#define cpus_empty(src) __cpus_empty(&(src), NR_CPUS) +static inline int __cpus_empty(const cpumask_t *srcp, int nbits) +{ + return bitmap_empty(srcp->bits, nbits); +} + +#define cpus_weight(cpumask) __cpus_weight(&(cpumask), NR_CPUS) +static inline int __cpus_weight(const cpumask_t *srcp, int nbits) +{ + return bitmap_weight(srcp->bits, nbits); +} + +#define cpus_shift_left(dst, src, n) \ + __cpus_shift_left(&(dst), &(src), (n), NR_CPUS) +static inline void __cpus_shift_left(cpumask_t *dstp, + const cpumask_t *srcp, int n, int nbits) +{ + bitmap_shift_left(dstp->bits, srcp->bits, n, nbits); +} +#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */ + #endif /* __LINUX_CPUMASK_H */ diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 2721f07e9354..80b776871a9b 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -77,7 +77,6 @@ typedef irqreturn_t (*irq_handler_t)(int, void *); * struct irqaction - per interrupt action descriptor * @handler: interrupt handler function * @flags: flags (see IRQF_* above) - * @mask: no comment as it is useless and about to be removed * @name: name of the device * @dev_id: cookie to identify the device * @next: pointer to the next irqaction for shared interrupts @@ -90,7 +89,6 @@ typedef irqreturn_t (*irq_handler_t)(int, void *); struct irqaction { irq_handler_t handler; unsigned long flags; - cpumask_t mask; const char *name; void *dev_id; struct irqaction *next; diff --git a/include/linux/lguest.h b/include/linux/lguest.h index 7bc1440fc473..dbf2479e808e 100644 --- a/include/linux/lguest.h +++ b/include/linux/lguest.h @@ -11,7 +11,7 @@ #define LG_CLOCK_MIN_DELTA 100UL #define LG_CLOCK_MAX_DELTA ULONG_MAX -/*G:032 The second method of communicating with the Host is to via "struct +/*G:031 The second method of communicating with the Host is to via "struct * lguest_data". Once the Guest's initialization hypercall tells the Host where * this is, the Guest and Host both publish information in it. :*/ struct lguest_data diff --git a/include/linux/sched.h b/include/linux/sched.h index 4d0754269884..692060d27316 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1713,10 +1713,13 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p, return 0; } #endif + +#ifndef CONFIG_CPUMASK_OFFSTACK static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask) { return set_cpus_allowed_ptr(p, &new_mask); } +#endif /* * Architectures can set this to 1 if they have specified diff --git a/include/linux/smp.h b/include/linux/smp.h index 9e3d8af09207..39c64bae776d 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -73,15 +73,6 @@ int smp_call_function(void(*func)(void *info), void *info, int wait); void smp_call_function_many(const struct cpumask *mask, void (*func)(void *info), void *info, bool wait); -/* Deprecated: Use smp_call_function_many which takes a pointer to the mask. */ -static inline int -smp_call_function_mask(cpumask_t mask, void(*func)(void *info), void *info, - int wait) -{ - smp_call_function_many(&mask, func, info, wait); - return 0; -} - void __smp_call_function_single(int cpuid, struct call_single_data *data, int wait); @@ -144,8 +135,6 @@ static inline int up_smp_call_function(void (*func)(void *), void *info) static inline void smp_send_reschedule(int cpu) { } #define num_booting_cpus() 1 #define smp_prepare_boot_cpu() do {} while (0) -#define smp_call_function_mask(mask, func, info, wait) \ - (up_smp_call_function(func, info)) #define smp_call_function_many(mask, func, info, wait) \ (up_smp_call_function(func, info)) static inline void init_call_single_data(void) diff --git a/include/linux/topology.h b/include/linux/topology.h index 7402c1a27c4f..b8dd079e7deb 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -183,12 +183,6 @@ int arch_update_cpu_topology(void); #ifndef topology_core_id #define topology_core_id(cpu) ((void)(cpu), 0) #endif -#ifndef topology_thread_siblings -#define topology_thread_siblings(cpu) cpumask_of_cpu(cpu) -#endif -#ifndef topology_core_siblings -#define topology_core_siblings(cpu) cpumask_of_cpu(cpu) -#endif #ifndef topology_thread_cpumask #define topology_thread_cpumask(cpu) cpumask_of(cpu) #endif diff --git a/init/main.c b/init/main.c index 2c5ade79eb81..e341b4b06cc6 100644 --- a/init/main.c +++ b/init/main.c @@ -359,11 +359,6 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { } #else -#if NR_CPUS > BITS_PER_LONG -cpumask_t cpu_mask_all __read_mostly = CPU_MASK_ALL; -EXPORT_SYMBOL(cpu_mask_all); -#endif - /* Setup number of possible processor ids */ int nr_cpu_ids __read_mostly = NR_CPUS; EXPORT_SYMBOL(nr_cpu_ids); diff --git a/kernel/kthread.c b/kernel/kthread.c index 9b1a7de26979..eb8751aa0418 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -180,10 +180,12 @@ EXPORT_SYMBOL(kthread_bind); * @k: thread created by kthread_create(). * * Sets kthread_should_stop() for @k to return true, wakes it, and - * waits for it to exit. Your threadfn() must not call do_exit() - * itself if you use this function! This can also be called after - * kthread_create() instead of calling wake_up_process(): the thread - * will exit without calling threadfn(). + * waits for it to exit. This can also be called after kthread_create() + * instead of calling wake_up_process(): the thread will exit without + * calling threadfn(). + * + * If threadfn() may call do_exit() itself, the caller must ensure + * task_struct can't go away. * * Returns the result of threadfn(), or %-EINTR if wake_up_process() * was never called. diff --git a/kernel/module.c b/kernel/module.c index 38928fcaff2b..6350abfd2098 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1068,7 +1068,8 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs, { const unsigned long *crc; - if (!find_symbol("module_layout", NULL, &crc, true, false)) + if (!find_symbol(MODULE_SYMBOL_PREFIX "module_layout", NULL, + &crc, true, false)) BUG(); return check_version(sechdrs, versindex, "module_layout", mod, crc); } diff --git a/kernel/smp.c b/kernel/smp.c index ad63d8501207..415ae238753b 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -335,13 +335,6 @@ void __smp_call_function_single(int cpu, struct call_single_data *data, generic_exec_single(cpu, data, wait); } -/* Deprecated: shim for archs using old arch_send_call_function_ipi API. */ - -#ifndef arch_send_call_function_ipi_mask -# define arch_send_call_function_ipi_mask(maskp) \ - arch_send_call_function_ipi(*(maskp)) -#endif - /** * smp_call_function_many(): Run a function on a set of other CPUs. * @mask: The set of cpus to run on (only runs on online subset). diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 3aa0a0dfdfa8..ffe3a951bb32 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1918,11 +1918,9 @@ __tracing_open(struct inode *inode, struct file *file) if (current_trace) *iter->trace = *current_trace; - if (!alloc_cpumask_var(&iter->started, GFP_KERNEL)) + if (!zalloc_cpumask_var(&iter->started, GFP_KERNEL)) goto fail; - cpumask_clear(iter->started); - if (current_trace && current_trace->print_max) iter->tr = &max_tr; else @@ -4278,7 +4276,7 @@ __init static int tracer_alloc_buffers(void) if (!alloc_cpumask_var(&tracing_cpumask, GFP_KERNEL)) goto out_free_buffer_mask; - if (!alloc_cpumask_var(&tracing_reader_cpumask, GFP_KERNEL)) + if (!zalloc_cpumask_var(&tracing_reader_cpumask, GFP_KERNEL)) goto out_free_tracing_cpumask; /* To save memory, keep the ring buffer size to its minimum */ @@ -4289,7 +4287,6 @@ __init static int tracer_alloc_buffers(void) cpumask_copy(tracing_buffer_mask, cpu_possible_mask); cpumask_copy(tracing_cpumask, cpu_all_mask); - cpumask_clear(tracing_reader_cpumask); /* TODO: make the number of buffers hot pluggable with CPUS */ global_trace.buffer = ring_buffer_alloc(ring_buf_size, diff --git a/mm/quicklist.c b/mm/quicklist.c index e66d07d1b4ff..92db0f96a0cc 100644 --- a/mm/quicklist.c +++ b/mm/quicklist.c @@ -29,7 +29,6 @@ static unsigned long max_pages(unsigned long min_pages) int node = numa_node_id(); struct zone *zones = NODE_DATA(node)->node_zones; int num_cpus_on_node; - const struct cpumask *cpumask_on_node = cpumask_of_node(node); node_free_pages = #ifdef CONFIG_ZONE_DMA @@ -42,7 +41,7 @@ static unsigned long max_pages(unsigned long min_pages) max = node_free_pages / FRACTION_OF_NODE_MEM; - num_cpus_on_node = cpus_weight_nr(*cpumask_on_node); + num_cpus_on_node = cpumask_weight(cpumask_of_node(node)); max /= num_cpus_on_node; return max(max, min_pages); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 947af6fb3f21..361f0cd311bd 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -738,8 +738,7 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned int req) bool called = true; struct kvm_vcpu *vcpu; - if (alloc_cpumask_var(&cpus, GFP_ATOMIC)) - cpumask_clear(cpus); + zalloc_cpumask_var(&cpus, GFP_ATOMIC); me = get_cpu(); spin_lock(&kvm->requests_lock); |