diff options
Diffstat (limited to 'include/linux/bottom_half.h')
| -rw-r--r-- | include/linux/bottom_half.h | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/include/linux/bottom_half.h b/include/linux/bottom_half.h index 27b1bcffe408..fc53e0ad56d9 100644 --- a/include/linux/bottom_half.h +++ b/include/linux/bottom_half.h @@ -1,9 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_BH_H #define _LINUX_BH_H -extern void local_bh_disable(void); +#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(void); -extern void local_bh_enable_ip(unsigned long ip); +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 */ |