Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_GENERIC_MMU_CONTEXT_H
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#define __ASM_GENERIC_MMU_CONTEXT_H
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/*
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* Generic hooks to implement no-op functionality.
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*/
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struct task_struct;
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struct mm_struct;
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/*
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* enter_lazy_tlb - Called when "tsk" is about to enter lazy TLB mode.
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*
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* @mm: the currently active mm context which is becoming lazy
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* @tsk: task which is entering lazy tlb
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*
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* tsk->mm will be NULL
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*/
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#ifndef enter_lazy_tlb
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static inline void enter_lazy_tlb(struct mm_struct *mm,
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struct task_struct *tsk)
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{
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}
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#endif
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/**
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* init_new_context - Initialize context of a new mm_struct.
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* @tsk: task struct for the mm
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* @mm: the new mm struct
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* @return: 0 on success, -errno on failure
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*/
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#ifndef init_new_context
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static inline int init_new_context(struct task_struct *tsk,
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struct mm_struct *mm)
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{
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return 0;
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}
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#endif
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/**
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* destroy_context - Undo init_new_context when the mm is going away
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* @mm: old mm struct
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*/
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#ifndef destroy_context
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static inline void destroy_context(struct mm_struct *mm)
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{
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}
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#endif
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/**
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* activate_mm - called after exec switches the current task to a new mm, to switch to it
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* @prev_mm: previous mm of this task
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* @next_mm: new mm
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*/
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#ifndef activate_mm
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static inline void activate_mm(struct mm_struct *prev_mm,
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struct mm_struct *next_mm)
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{
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switch_mm(prev_mm, next_mm, current);
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}
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#endif
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/**
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* dectivate_mm - called when an mm is released after exit or exec switches away from it
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* @tsk: the task
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* @mm: the old mm
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*/
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#ifndef deactivate_mm
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static inline void deactivate_mm(struct task_struct *tsk,
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struct mm_struct *mm)
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{
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}
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#endif
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#endif /* __ASM_GENERIC_MMU_CONTEXT_H */
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