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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _LINUX_BH_H
- #define _LINUX_BH_H
- #include <linux/instruction_pointer.h>
- #include <linux/preempt.h>
- #if defined(CONFIG_PREEMPT_RT) || defined(CONFIG_TRACE_IRQFLAGS)
- extern void __local_bh_disable_ip(unsigned long ip, unsigned int cnt);
- #else
- static __always_inline void __local_bh_disable_ip(unsigned long ip, unsigned int cnt)
- {
- preempt_count_add(cnt);
- barrier();
- }
- #endif
- static inline void local_bh_disable(void)
- {
- __local_bh_disable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
- }
- extern void _local_bh_enable(void);
- extern void __local_bh_enable_ip(unsigned long ip, unsigned int cnt);
- static inline void local_bh_enable_ip(unsigned long ip)
- {
- __local_bh_enable_ip(ip, SOFTIRQ_DISABLE_OFFSET);
- }
- static inline void local_bh_enable(void)
- {
- __local_bh_enable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
- }
- #ifdef CONFIG_PREEMPT_RT
- extern bool local_bh_blocked(void);
- #else
- static inline bool local_bh_blocked(void) { return false; }
- #endif
- #endif /* _LINUX_BH_H */
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