17 static int init_stub_pte(struct mm_struct *mm, unsigned long proc,  in init_stub_pte()  argument
25 	pgd = pgd_offset(mm, proc);  in init_stub_pte()
26 	pud = pud_alloc(mm, pgd, proc);  in init_stub_pte()
30 	pmd = pmd_alloc(mm, pud, proc);  in init_stub_pte()
34 	pte = pte_alloc_map(mm, NULL, pmd, proc);  in init_stub_pte()
43 	pmd_free(mm, pmd);  in init_stub_pte()
45 	pud_free(mm, pud);  in init_stub_pte()
50 int init_new_context(struct task_struct *task, struct mm_struct *mm)  in init_new_context()  argument
53 	struct mm_context *to_mm = &mm->context;  in init_new_context()
62 	if (current->mm != NULL && current->mm != &init_mm)  in init_new_context()
63 		from_mm = &current->mm->context;  in init_new_context()
93 void uml_setup_stubs(struct mm_struct *mm)  in uml_setup_stubs()  argument
97 	ret = init_stub_pte(mm, STUB_CODE,  in uml_setup_stubs()
102 	ret = init_stub_pte(mm, STUB_DATA, mm->context.id.stack);  in uml_setup_stubs()
106 	mm->context.stub_pages[0] = virt_to_page(__syscall_stub_start);  in uml_setup_stubs()
107 	mm->context.stub_pages[1] = virt_to_page(mm->context.id.stack);  in uml_setup_stubs()
110 	err = install_special_mapping(mm, STUB_START, STUB_END - STUB_START,  in uml_setup_stubs()
113 				      mm->context.stub_pages);  in uml_setup_stubs()
124 void arch_exit_mmap(struct mm_struct *mm)  in arch_exit_mmap()  argument
128 	pte = virt_to_pte(mm, STUB_CODE);  in arch_exit_mmap()
130 		pte_clear(mm, STUB_CODE, pte);  in arch_exit_mmap()
132 	pte = virt_to_pte(mm, STUB_DATA);  in arch_exit_mmap()
136 	pte_clear(mm, STUB_DATA, pte);  in arch_exit_mmap()
139 void destroy_context(struct mm_struct *mm)  in destroy_context()  argument
141 	struct mm_context *mmu = &mm->context;  in destroy_context()