Commit-ID: 7a3e686e1bb57c34f73d3f19d620fe29035a6c99 Gitweb: http://git.kernel.org/tip/7a3e686e1bb57c34f73d3f19d620fe29035a6c99 Author: Len Brown <len.br...@intel.com> AuthorDate: Fri, 18 Nov 2016 01:23:21 -0500 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Fri, 18 Nov 2016 12:07:57 +0100
x86/idle: Remove enter_idle(), exit_idle() Upon removal of the is_idle flag, these routines became NOPs. Signed-off-by: Len Brown <len.br...@intel.com> Acked-by: Ingo Molnar <mi...@kernel.org> Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org> Link: http://lkml.kernel.org/r/822f2c22cc5890f7b8ea0eeec60277eb44505b4e.1479449716.git.len.br...@intel.com Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- arch/x86/include/asm/apic.h | 1 - arch/x86/include/asm/idle.h | 9 --------- arch/x86/kernel/kvm.c | 2 -- arch/x86/kernel/process.c | 25 ------------------------- drivers/xen/events/events_base.c | 1 - 5 files changed, 38 deletions(-) diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index f5aaf6c..5731274 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -639,7 +639,6 @@ extern void irq_exit(void); static inline void entering_irq(void) { irq_enter(); - exit_idle(); } static inline void entering_ack_irq(void) diff --git a/arch/x86/include/asm/idle.h b/arch/x86/include/asm/idle.h index 02bab09..dcebb1c 100644 --- a/arch/x86/include/asm/idle.h +++ b/arch/x86/include/asm/idle.h @@ -1,15 +1,6 @@ #ifndef _ASM_X86_IDLE_H #define _ASM_X86_IDLE_H -#ifdef CONFIG_X86_64 -void enter_idle(void); -void exit_idle(void); -#else /* !CONFIG_X86_64 */ -static inline void enter_idle(void) { } -static inline void exit_idle(void) { } -static inline void __exit_idle(void) { } -#endif /* CONFIG_X86_64 */ - void amd_e400_remove_cpu(int cpu); #endif /* _ASM_X86_IDLE_H */ diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index edbbfc8..093f550 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -267,13 +267,11 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code) case KVM_PV_REASON_PAGE_NOT_PRESENT: /* page is swapped out by the host. */ prev_state = exception_enter(); - exit_idle(); kvm_async_pf_task_wait((u32)read_cr2()); exception_exit(prev_state); break; case KVM_PV_REASON_PAGE_READY: rcu_irq_enter(); - exit_idle(); kvm_async_pf_task_wake((u32)read_cr2()); rcu_irq_exit(); break; diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index d8e9d79..ee023919 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -234,34 +234,9 @@ static inline void play_dead(void) } #endif -#ifdef CONFIG_X86_64 -void enter_idle(void) -{ -} - -static void __exit_idle(void) -{ -} - -/* Called from interrupts to signify idle end */ -void exit_idle(void) -{ - /* idle loop has pid 0 */ - if (current->pid) - return; - __exit_idle(); -} -#endif - void arch_cpu_idle_enter(void) { local_touch_nmi(); - enter_idle(); -} - -void arch_cpu_idle_exit(void) -{ - __exit_idle(); } void arch_cpu_idle_dead(void) diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 9ecfcdc..9ad622a 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -1256,7 +1256,6 @@ void xen_evtchn_do_upcall(struct pt_regs *regs) irq_enter(); #ifdef CONFIG_X86 - exit_idle(); inc_irq_stat(irq_hv_callback_count); #endif
