1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
6 #ifndef __UM_MMU_CONTEXT_H
7 #define __UM_MMU_CONTEXT_H
9 #include <linux/sched.h>
10 #include <linux/mm_types.h>
11 #include <linux/mmap_lock.h>
13 #include <asm/mm_hooks.h>
16 #define activate_mm activate_mm
17 static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
20 * This is called by fs/exec.c and sys_unshare()
21 * when the new ->mm is used for the first time.
23 __switch_mm(&new->context.id);
26 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
27 struct task_struct *tsk)
29 unsigned cpu = smp_processor_id();
32 cpumask_clear_cpu(cpu, mm_cpumask(prev));
33 cpumask_set_cpu(cpu, mm_cpumask(next));
35 __switch_mm(&next->context.id);
39 #define init_new_context init_new_context
40 extern int init_new_context(struct task_struct *task, struct mm_struct *mm);
42 #define destroy_context destroy_context
43 extern void destroy_context(struct mm_struct *mm);
45 #include <asm-generic/mmu_context.h>