/* * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ #ifndef __UM_MMU_CONTEXT_H #define __UM_MMU_CONTEXT_H #include <linux/sched.h> #include <linux/mm_types.h> #include <asm/mmu.h> extern void uml_setup_stubs(struct mm_struct *mm); /* * Needed since we do not use the asm-generic/mm_hooks.h: */ static inline int arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) { uml_setup_stubs(mm); return 0; } extern void arch_exit_mmap(struct mm_struct *mm); static inline void arch_unmap(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long start, unsigned long end) { } static inline void arch_bprm_mm_init(struct mm_struct *mm, struct vm_area_struct *vma) { } static inline bool arch_vma_access_permitted(struct vm_area_struct *vma, bool write, bool execute, bool foreign) { /* by default, allow everything */ return true; } /* * end asm-generic/mm_hooks.h functions */ #define deactivate_mm(tsk,mm) do { } while (0) extern void force_flush_all(void); static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) { /* * This is called by fs/exec.c and sys_unshare() * when the new ->mm is used for the first time. */ __switch_mm(&new->context.id); down_write_nested(&new->mmap_sem, 1); uml_setup_stubs(new); up_write(&new->mmap_sem); } static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) { unsigned cpu = smp_processor_id(); if(prev != next){ cpumask_clear_cpu(cpu, mm_cpumask(prev)); cpumask_set_cpu(cpu, mm_cpumask(next)); if(next != &init_mm) __switch_mm(&next->context.id); } } static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { } extern int init_new_context(struct task_struct *task, struct mm_struct *mm); extern void destroy_context(struct mm_struct *mm); #endif
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Kbuild | File | 702 B | 0644 |
|
a.out-core.h | File | 695 B | 0644 |
|
bugs.h | File | 111 B | 0644 |
|
cache.h | File | 483 B | 0644 |
|
common.lds.S | File | 1.76 KB | 0644 |
|
dma.h | File | 180 B | 0644 |
|
fixmap.h | File | 1.63 KB | 0644 |
|
hardirq.h | File | 558 B | 0644 |
|
io.h | File | 339 B | 0644 |
|
irq.h | File | 493 B | 0644 |
|
irqflags.h | File | 865 B | 0644 |
|
kmap_types.h | File | 219 B | 0644 |
|
kvm_para.h | File | 34 B | 0644 |
|
mmu.h | File | 558 B | 0644 |
|
mmu_context.h | File | 1.87 KB | 0644 |
|
page.h | File | 3.15 KB | 0644 |
|
pgalloc.h | File | 1.46 KB | 0644 |
|
pgtable-2level.h | File | 1.32 KB | 0644 |
|
pgtable-3level.h | File | 2.88 KB | 0644 |
|
pgtable.h | File | 9.88 KB | 0644 |
|
processor-generic.h | File | 1.87 KB | 0644 |
|
ptrace-generic.h | File | 1.13 KB | 0644 |
|
sections.h | File | 219 B | 0644 |
|
setup.h | File | 273 B | 0644 |
|
smp.h | File | 121 B | 0644 |
|
stacktrace.h | File | 1.06 KB | 0644 |
|
syscall-generic.h | File | 2.67 KB | 0644 |
|
sysrq.h | File | 182 B | 0644 |
|
thread_info.h | File | 2.15 KB | 0644 |
|
timex.h | File | 151 B | 0644 |
|
tlb.h | File | 4.23 KB | 0644 |
|
tlbflush.h | File | 978 B | 0644 |
|
uaccess.h | File | 1.65 KB | 0644 |
|
unwind.h | File | 213 B | 0644 |
|