diff options
Diffstat (limited to 'mm/nommu.c')
| -rw-r--r-- | mm/nommu.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 3613517c759..f59e1424d3d 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -10,7 +10,7 @@ * Copyright (c) 2000-2003 David McCullough <davidm@snapgear.com> * Copyright (c) 2000-2001 D Jeff Dionne <jeff@uClinux.org> * Copyright (c) 2002 Greg Ungerer <gerg@snapgear.com> - * Copyright (c) 2007-2009 Paul Mundt <lethal@linux-sh.org> + * Copyright (c) 2007-2010 Paul Mundt <lethal@linux-sh.org> */ #include <linux/module.h> @@ -127,7 +127,8 @@ unsigned int kobjsize(const void *objp) int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, int nr_pages, unsigned int foll_flags, - struct page **pages, struct vm_area_struct **vmas) + struct page **pages, struct vm_area_struct **vmas, + int *retry) { struct vm_area_struct *vma; unsigned long vm_flags; @@ -185,7 +186,8 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, if (force) flags |= FOLL_FORCE; - return __get_user_pages(tsk, mm, start, nr_pages, flags, pages, vmas); + return __get_user_pages(tsk, mm, start, nr_pages, flags, pages, vmas, + NULL); } EXPORT_SYMBOL(get_user_pages); @@ -328,6 +330,7 @@ void *vmalloc_node(unsigned long size, int node) { return vmalloc(size); } +EXPORT_SYMBOL(vmalloc_node); /** * vzalloc_node - allocate memory on a specific node with zero fill @@ -440,6 +443,31 @@ void __attribute__((weak)) vmalloc_sync_all(void) { } +/** + * alloc_vm_area - allocate a range of kernel address space + * @size: size of the area + * + * Returns: NULL on failure, vm_struct on success + * + * This function reserves a range of kernel address space, and + * allocates pagetables to map that range. No actual mappings + * are created. If the kernel address space is not shared + * between processes, it syncs the pagetable across all + * processes. + */ +struct vm_struct *alloc_vm_area(size_t size) +{ + BUG(); + return NULL; +} +EXPORT_SYMBOL_GPL(alloc_vm_area); + +void free_vm_area(struct vm_struct *area) +{ + BUG(); +} +EXPORT_SYMBOL_GPL(free_vm_area); + int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, struct page *page) { @@ -1717,6 +1745,7 @@ void exit_mmap(struct mm_struct *mm) mm->mmap = vma->vm_next; delete_vma_from_mm(vma); delete_vma(mm, vma); + cond_resched(); } kleave(""); |