1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | #ifndef _LINUX_LIVEPATCH_SCHED_H_ |
3 | #define _LINUX_LIVEPATCH_SCHED_H_ |
4 | |
5 | #include <linux/jump_label.h> |
6 | #include <linux/static_call_types.h> |
7 | |
8 | #ifdef CONFIG_LIVEPATCH |
9 | |
10 | void __klp_sched_try_switch(void); |
11 | |
12 | #if !defined(CONFIG_PREEMPT_DYNAMIC) || !defined(CONFIG_HAVE_PREEMPT_DYNAMIC_CALL) |
13 | |
14 | DECLARE_STATIC_KEY_FALSE(klp_sched_try_switch_key); |
15 | |
16 | static __always_inline void klp_sched_try_switch(void) |
17 | { |
18 | if (static_branch_unlikely(&klp_sched_try_switch_key)) |
19 | __klp_sched_try_switch(); |
20 | } |
21 | |
22 | #endif /* !CONFIG_PREEMPT_DYNAMIC || !CONFIG_HAVE_PREEMPT_DYNAMIC_CALL */ |
23 | |
24 | #else /* !CONFIG_LIVEPATCH */ |
25 | static inline void klp_sched_try_switch(void) {} |
26 | static inline void __klp_sched_try_switch(void) {} |
27 | #endif /* CONFIG_LIVEPATCH */ |
28 | |
29 | #endif /* _LINUX_LIVEPATCH_SCHED_H_ */ |
30 | |