powerpc: Fix personality handling in ppc64_personality()
[linux/fpc-iii.git] / arch / um / include / asm / mmu_context.h
blobaa4a743dc4ab1a6b5ef7afe373a73b87542bd640
1 /*
2 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
4 */
6 #ifndef __UM_MMU_CONTEXT_H
7 #define __UM_MMU_CONTEXT_H
9 #include <linux/sched.h>
10 #include <asm/mmu.h>
12 extern void uml_setup_stubs(struct mm_struct *mm);
13 extern void arch_exit_mmap(struct mm_struct *mm);
15 #define deactivate_mm(tsk,mm) do { } while (0)
17 extern void force_flush_all(void);
19 static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
22 * This is called by fs/exec.c and sys_unshare()
23 * when the new ->mm is used for the first time.
25 __switch_mm(&new->context.id);
26 down_write(&new->mmap_sem);
27 uml_setup_stubs(new);
28 up_write(&new->mmap_sem);
31 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
32 struct task_struct *tsk)
34 unsigned cpu = smp_processor_id();
36 if(prev != next){
37 cpumask_clear_cpu(cpu, mm_cpumask(prev));
38 cpumask_set_cpu(cpu, mm_cpumask(next));
39 if(next != &init_mm)
40 __switch_mm(&next->context.id);
44 static inline void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
46 uml_setup_stubs(mm);
49 static inline void enter_lazy_tlb(struct mm_struct *mm,
50 struct task_struct *tsk)
54 extern int init_new_context(struct task_struct *task, struct mm_struct *mm);
56 extern void destroy_context(struct mm_struct *mm);
58 #endif