1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_GENERIC_MMU_CONTEXT_H
3 #define __ASM_GENERIC_MMU_CONTEXT_H
6 * Generic hooks to implement no-op functionality.
13 * enter_lazy_tlb - Called when "tsk" is about to enter lazy TLB mode.
15 * @mm: the currently active mm context which is becoming lazy
16 * @tsk: task which is entering lazy tlb
18 * tsk->mm will be NULL
20 #ifndef enter_lazy_tlb
21 static inline void enter_lazy_tlb(struct mm_struct *mm,
22 struct task_struct *tsk)
28 * init_new_context - Initialize context of a new mm_struct.
29 * @tsk: task struct for the mm
30 * @mm: the new mm struct
31 * @return: 0 on success, -errno on failure
33 #ifndef init_new_context
34 static inline int init_new_context(struct task_struct *tsk,
42 * destroy_context - Undo init_new_context when the mm is going away
45 #ifndef destroy_context
46 static inline void destroy_context(struct mm_struct *mm)
52 * activate_mm - called after exec switches the current task to a new mm, to switch to it
53 * @prev_mm: previous mm of this task
57 static inline void activate_mm(struct mm_struct *prev_mm,
58 struct mm_struct *next_mm)
60 switch_mm(prev_mm, next_mm, current);
65 * dectivate_mm - called when an mm is released after exit or exec switches away from it
70 static inline void deactivate_mm(struct task_struct *tsk,
76 #endif /* __ASM_GENERIC_MMU_CONTEXT_H */