文件操作 - irqflags.h
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文件: /usr/src/linux-headers-5.15.0-113/arch/um/include/asm/irqflags.h
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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_IRQFLAGS_H #define __UM_IRQFLAGS_H extern int signals_enabled; int um_set_signals(int enable); void block_signals(void); void unblock_signals(void); #define arch_local_save_flags arch_local_save_flags static inline unsigned long arch_local_save_flags(void) { return signals_enabled; } #define arch_local_irq_restore arch_local_irq_restore static inline void arch_local_irq_restore(unsigned long flags) { um_set_signals(flags); } #define arch_local_irq_enable arch_local_irq_enable static inline void arch_local_irq_enable(void) { unblock_signals(); } #define arch_local_irq_disable arch_local_irq_disable static inline void arch_local_irq_disable(void) { block_signals(); } #define ARCH_IRQ_DISABLED 0 #include <asm-generic/irqflags.h> #endif
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