target/linux/generic/patches-3.6/950-vm_exports.patch

   1 --- a/mm/shmem.c
   2 +++ b/mm/shmem.c
   3 @@ -2914,6 +2914,16 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range);
   4
   5  /* common code */
   6
   7 +void shmem_set_file(struct vm_area_struct *vma, struct file *file)
   8 +{
   9 +       if (vma->vm_file)
  10 +               fput(vma->vm_file);
  11 +       vma->vm_file = file;
  12 +       vma->vm_ops = &shmem_vm_ops;
  13 +       vma->vm_flags |= VM_CAN_NONLINEAR;
  14 +}
  15 +EXPORT_SYMBOL_GPL(shmem_set_file);
  16 +
  17  /**
  18   * shmem_file_setup - get an unlinked file living in tmpfs
  19   * @name: name for dentry (to be seen in /proc/<pid>/maps
  20 @@ -2991,11 +3001,8 @@ int shmem_zero_setup(struct vm_area_stru
  21         if (IS_ERR(file))
  22                 return PTR_ERR(file);
  23
  24 -       if (vma->vm_file)
  25 -               fput(vma->vm_file);
  26 -       vma->vm_file = file;
  27 -       vma->vm_ops = &shmem_vm_ops;
  28 -       vma->vm_flags |= VM_CAN_NONLINEAR;
  29 +       shmem_set_file(vma, file);
  30 +
  31         return 0;
  32  }
  33
  34 --- a/fs/file.c
  35 +++ b/fs/file.c
  36 @@ -269,6 +269,7 @@ int expand_files(struct files_struct *fi
  37         /* All good, so we try */
  38         return expand_fdtable(files, nr);
  39  }
  40 +EXPORT_SYMBOL_GPL(expand_files);
  41
  42  static int count_open_files(struct fdtable *fdt)
  43  {
  44 --- a/kernel/exit.c
  45 +++ b/kernel/exit.c
  46 @@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
  47
  48         return files;
  49  }
  50 +EXPORT_SYMBOL_GPL(get_files_struct);
  51
  52  void put_files_struct(struct files_struct *files)
  53  {
  54 @@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
  55                 rcu_read_unlock();
  56         }
  57  }
  58 +EXPORT_SYMBOL_GPL(put_files_struct);
  59
  60  void reset_files_struct(struct files_struct *files)
  61  {
  62 --- a/kernel/sched/core.c
  63 +++ b/kernel/sched/core.c
  64 @@ -4106,6 +4106,7 @@ int can_nice(const struct task_struct *p
  65         return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
  66                 capable(CAP_SYS_NICE));
  67  }
  68 +EXPORT_SYMBOL_GPL(can_nice);
  69
  70  #ifdef __ARCH_WANT_SYS_NICE
  71
  72 --- a/mm/memory.c
  73 +++ b/mm/memory.c
  74 @@ -1408,6 +1408,7 @@ void zap_page_range(struct vm_area_struc
  75         mmu_notifier_invalidate_range_end(mm, start, end);
  76         tlb_finish_mmu(&tlb, start, end);
  77  }
  78 +EXPORT_SYMBOL_GPL(zap_page_range);
  79
  80  /**
  81   * zap_page_range_single - remove user pages in a given range
  82 --- a/mm/vmalloc.c
  83 +++ b/mm/vmalloc.c
  84 @@ -1266,6 +1266,7 @@ void unmap_kernel_range(unsigned long ad
  85         vunmap_page_range(addr, end);
  86         flush_tlb_kernel_range(addr, end);
  87  }
  88 +EXPORT_SYMBOL_GPL(unmap_kernel_range);
  89
  90  int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
  91  {
  92 @@ -1403,6 +1404,7 @@ struct vm_struct *get_vm_area(unsigned l
  93         return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
  94                                 -1, GFP_KERNEL, __builtin_return_address(0));
  95  }
  96 +EXPORT_SYMBOL_GPL(get_vm_area);
  97
  98  struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
  99                                 const void *caller)
 100 --- a/include/linux/shmem_fs.h
 101 +++ b/include/linux/shmem_fs.h
 102 @@ -46,6 +46,8 @@ extern int shmem_init(void);
 103  extern int shmem_fill_super(struct super_block *sb, void *data, int silent);
 104  extern struct file *shmem_file_setup(const char *name,
 105                                         loff_t size, unsigned long flags);
 106 +
 107 +extern void shmem_set_file(struct vm_area_struct *vma, struct file *file);
 108  extern int shmem_zero_setup(struct vm_area_struct *);
 109  extern int shmem_lock(struct file *file, int lock, struct user_struct *user);
 110  extern void shmem_unlock_mapping(struct address_space *mapping);