diff options
| -rw-r--r-- | arch/mn10300/Kconfig | 6 | ||||
| -rw-r--r-- | arch/x86/Kconfig | 5 | ||||
| -rw-r--r-- | kernel/Makefile | 2 | ||||
| -rw-r--r-- | kernel/smp.c | 19 | ||||
| -rw-r--r-- | kernel/softirq.c | 19 |
5 files changed, 22 insertions, 29 deletions
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 41ba38513c89..8ed41cf2b08d 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -203,6 +203,7 @@ endmenu config SMP bool "Symmetric multi-processing support" default y + select USE_GENERIC_SMP_HELPERS depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050 ---help--- This enables support for systems with more than one CPU. If you have @@ -226,11 +227,6 @@ config NR_CPUS depends on SMP default "2" -config USE_GENERIC_SMP_HELPERS - bool - depends on SMP - default y - source "kernel/Kconfig.preempt" config MN10300_CURRENT_IN_E2 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b6fccb07123e..8734db3c5830 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -65,6 +65,7 @@ config X86 select HAVE_SPARSE_IRQ select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP + select USE_GENERIC_SMP_HELPERS if SMP config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) @@ -203,10 +204,6 @@ config HAVE_INTEL_TXT def_bool y depends on EXPERIMENTAL && DMAR && ACPI -config USE_GENERIC_SMP_HELPERS - def_bool y - depends on SMP - config X86_32_SMP def_bool y depends on X86_32 && SMP diff --git a/kernel/Makefile b/kernel/Makefile index 5669f71dfdd5..353d3fe8ba33 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -43,7 +43,7 @@ obj-$(CONFIG_RT_MUTEXES) += rtmutex.o obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o -obj-$(CONFIG_USE_GENERIC_SMP_HELPERS) += smp.o +obj-$(CONFIG_SMP) += smp.o ifneq ($(CONFIG_SMP),y) obj-y += up.o endif diff --git a/kernel/smp.c b/kernel/smp.c index 12ed8b013e2d..4ec30e069987 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -13,6 +13,7 @@ #include <linux/smp.h> #include <linux/cpu.h> +#ifdef CONFIG_USE_GENERIC_SMP_HELPERS static struct { struct list_head queue; raw_spinlock_t lock; @@ -529,3 +530,21 @@ void ipi_call_unlock_irq(void) { raw_spin_unlock_irq(&call_function.lock); } +#endif /* USE_GENERIC_SMP_HELPERS */ + +/* + * Call a function on all processors + */ +int on_each_cpu(void (*func) (void *info), void *info, int wait) +{ + int ret = 0; + + preempt_disable(); + ret = smp_call_function(func, info, wait); + local_irq_disable(); + func(info); + local_irq_enable(); + preempt_enable(); + return ret; +} +EXPORT_SYMBOL(on_each_cpu); diff --git a/kernel/softirq.c b/kernel/softirq.c index 0823778f87fc..68eb5efec388 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -885,25 +885,6 @@ static __init int spawn_ksoftirqd(void) } early_initcall(spawn_ksoftirqd); -#ifdef CONFIG_SMP -/* - * Call a function on all processors - */ -int on_each_cpu(void (*func) (void *info), void *info, int wait) -{ - int ret = 0; - - preempt_disable(); - ret = smp_call_function(func, info, wait); - local_irq_disable(); - func(info); - local_irq_enable(); - preempt_enable(); - return ret; -} -EXPORT_SYMBOL(on_each_cpu); -#endif - /* * [ These __weak aliases are kept in a separate compilation unit, so that * GCC does not inline them incorrectly. ] |