diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 78a63cbc3..124f3e929 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -73,6 +73,7 @@ CONFIG_HIGH_RES_TIMERS=y CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set +CONFIG_PREEMPT_RT=y # # CPU/Task time and stats accounting @@ -725,7 +726,7 @@ CONFIG_ACPI_MPAM=y CONFIG_ACPI_PPTT=y # CONFIG_PMIC_OPREGION is not set CONFIG_IRQ_BYPASS_MANAGER=y -CONFIG_VIRTUALIZATION=y +# CONFIG_VIRTUALIZATION is not set CONFIG_KVM=y CONFIG_HAVE_KVM_IRQCHIP=y CONFIG_HAVE_KVM_IRQFD=y @@ -1107,7 +1108,7 @@ CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y # CONFIG_GUP_BENCHMARK is not set # CONFIG_READ_ONLY_THP_FOR_FS is not set CONFIG_ARCH_HAS_PTE_SPECIAL=y -CONFIG_PIN_MEMORY=y +# CONFIG_PIN_MEMORY is not set CONFIG_PID_RESERVE=y CONFIG_MEMORY_RELIABLE=y diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 84520f116..aa631771e 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -180,7 +180,7 @@ static void __get_cpu_fpsimd_context(void) */ static void get_cpu_fpsimd_context(void) { - local_bh_disable(); + preempt_disable(); __get_cpu_fpsimd_context(); } @@ -201,7 +201,7 @@ static void __put_cpu_fpsimd_context(void) static void put_cpu_fpsimd_context(void) { __put_cpu_fpsimd_context(); - local_bh_enable(); + preempt_enable(); } static bool have_cpu_fpsimd_context(void) diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index f9c94b618..fdba98e7a 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -88,9 +88,10 @@ CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y # end of Timers subsystem -CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set +CONFIG_PREEMPT_RT=y # # CPU/Task time and stats accounting @@ -205,7 +206,7 @@ CONFIG_HAVE_UID16=y CONFIG_SYSCTL_EXCEPTION_TRACE=y CONFIG_HAVE_PCSPKR_PLATFORM=y CONFIG_BPF=y -# CONFIG_EXPERT is not set +CONFIG_EXPERT=y CONFIG_UID16=y CONFIG_MULTIUSER=y CONFIG_SGETMASK_SYSCALL=y @@ -724,7 +725,7 @@ CONFIG_KVM_COMPAT=y CONFIG_HAVE_KVM_IRQ_BYPASS=y CONFIG_HAVE_KVM_NO_POLL=y CONFIG_KVM_XFER_TO_GUEST_WORK=y -CONFIG_VIRTUALIZATION=y +# CONFIG_VIRTUALIZATION is not set CONFIG_KVM=m CONFIG_KVM_INTEL=m CONFIG_KVM_AMD=m diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h index a3b73de27..dda9ec24f 100644 --- a/arch/x86/include/asm/preempt.h +++ b/arch/x86/include/asm/preempt.h @@ -134,10 +134,8 @@ static __always_inline bool should_resched(int preempt_offset) #endif } +#ifndef CONFIG_PREEMPT_RT #ifdef CONFIG_PREEMPTION -#ifdef CONFIG_PREEMPT_RT - extern void preempt_schedule_lock(void); -#endif extern asmlinkage void preempt_schedule(void); extern asmlinkage void preempt_schedule_thunk(void); @@ -166,4 +164,16 @@ do { \ #endif +#else +#ifdef CONFIG_PREEMPTION +#ifdef CONFIG_PREEMPT_RT +extern void preempt_schedule_lock(void); +#endif +extern asmlinkage void preempt_schedule(void); +#define __preempt_schedule() preempt_schedule() +extern asmlinkage void preempt_schedule_notrace(void); +#define __preempt_schedule_notrace() preempt_schedule_notrace() +#endif /* CONFIG_PREEMPTION */ +#endif + #endif /* __ASM_PREEMPT_H */ diff --git a/include/linux/printk.h b/include/linux/printk.h index 9331b131b..23946f482 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -241,7 +241,7 @@ __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...); void dump_stack_print_info(const char *log_lvl); void show_regs_print_info(const char *log_lvl); extern asmlinkage void dump_stack(void) __cold; -#if defined(CONFIG_X86) || defined(CONFIG_ARM64_PSEUDO_NMI) +#if (defined(CONFIG_X86) || defined(CONFIG_ARM64_PSEUDO_NMI)) && !defined(CONFIG_PREEMPT_RT) extern void zap_locks(void); #else static inline void zap_locks(void) { } diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index eeeb590e1..d6fc0ae57 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1811,7 +1811,7 @@ static void print_sync_until(struct console *con, u64 seq) console_atomic_unlock(flags); } -#if defined(CONFIG_X86) || defined(CONFIG_ARM64_PSEUDO_NMI) +#if (defined(CONFIG_X86) || defined(CONFIG_ARM64_PSEUDO_NMI)) && !defined(CONFIG_PREEMPT_RT) void zap_locks(void) { if (raw_spin_is_locked(&logbuf_lock)) {