From 4bb689eee12ceb6d669a0c9a519037c049a8af38 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 9 Jul 2008 14:33:33 +0200 Subject: [PATCH] x86: paravirt spinlocks, !CONFIG_SMP build fixes Signed-off-by: Ingo Molnar --- arch/x86/kernel/paravirt.c | 4 ++++ include/asm-x86/paravirt.h | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index bba4041bb7ff..6aa8aed06d54 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -270,11 +270,13 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void) void __init paravirt_use_bytelocks(void) { +#ifdef CONFIG_SMP pv_lock_ops.spin_is_locked = __byte_spin_is_locked; pv_lock_ops.spin_is_contended = __byte_spin_is_contended; pv_lock_ops.spin_lock = __byte_spin_lock; pv_lock_ops.spin_trylock = __byte_spin_trylock; pv_lock_ops.spin_unlock = __byte_spin_unlock; +#endif } struct pv_info pv_info = { @@ -461,12 +463,14 @@ struct pv_mmu_ops pv_mmu_ops = { }; struct pv_lock_ops pv_lock_ops = { +#ifdef CONFIG_SMP .spin_is_locked = __ticket_spin_is_locked, .spin_is_contended = __ticket_spin_is_contended, .spin_lock = __ticket_spin_lock, .spin_trylock = __ticket_spin_trylock, .spin_unlock = __ticket_spin_unlock, +#endif }; EXPORT_SYMBOL_GPL(pv_time_ops); diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 65ed02cdbbd7..b2aba8fdaae7 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1387,6 +1387,8 @@ void _paravirt_nop(void); void paravirt_use_bytelocks(void); +#ifdef CONFIG_SMP + static inline int __raw_spin_is_locked(struct raw_spinlock *lock) { return PVOP_CALL1(int, pv_lock_ops.spin_is_locked, lock); @@ -1412,6 +1414,8 @@ static __always_inline void __raw_spin_unlock(struct raw_spinlock *lock) return PVOP_VCALL1(pv_lock_ops.spin_unlock, lock); } +#endif + /* These all sit in the .parainstructions section to tell us what to patch. */ struct paravirt_patch_site { u8 *instr; /* original instructions */ -- 2.20.1