target/linux/generic/patches-2.6.39/980-vm_exports.patch

   1 --- a/mm/shmem.c
   2 +++ b/mm/shmem.c
   3 @@ -2711,6 +2711,16 @@ out:
   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 @@ -2788,10 +2798,7 @@ 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 --- a/fs/file.c
  34 +++ b/fs/file.c
  35 @@ -264,6 +264,7 @@ int expand_files(struct files_struct *fi
  36         /* All good, so we try */
  37         return expand_fdtable(files, nr);
  38  }
  39 +EXPORT_SYMBOL_GPL(expand_files);
  40
  41  static int count_open_files(struct fdtable *fdt)
  42  {
  43 --- a/kernel/exit.c
  44 +++ b/kernel/exit.c
  45 @@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
  46
  47         return files;
  48  }
  49 +EXPORT_SYMBOL_GPL(get_files_struct);
  50
  51  void put_files_struct(struct files_struct *files)
  52  {
  53 @@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
  54                 rcu_read_unlock();
  55         }
  56  }
  57 +EXPORT_SYMBOL_GPL(put_files_struct);
  58
  59  void reset_files_struct(struct files_struct *files)
  60  {
  61 --- a/kernel/sched.c
  62 +++ b/kernel/sched.c
  63 @@ -4781,6 +4781,7 @@ int can_nice(const struct task_struct *p
  64         return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
  65                 capable(CAP_SYS_NICE));
  66  }
  67 +EXPORT_SYMBOL_GPL(can_nice);
  68
  69  #ifdef __ARCH_WANT_SYS_NICE
  70
  71 --- a/mm/memory.c
  72 +++ b/mm/memory.c
  73 @@ -1229,6 +1229,7 @@ unsigned long zap_page_range(struct vm_a
  74                 tlb_finish_mmu(tlb, address, end);
  75         return end;
  76  }
  77 +EXPORT_SYMBOL_GPL(zap_page_range);
  78
  79  /**
  80   * zap_vma_ptes - remove ptes mapping the vma
  81 @@ -2756,6 +2757,7 @@ int vmtruncate_range(struct inode *inode
  82
  83         return 0;
  84  }
  85 +EXPORT_SYMBOL_GPL(vmtruncate_range);
  86
  87  /*
  88   * We enter with non-exclusive mmap_sem (to exclude vma changes,
  89 --- a/mm/vmalloc.c
  90 +++ b/mm/vmalloc.c
  91 @@ -1245,6 +1245,7 @@ void unmap_kernel_range(unsigned long ad
  92         vunmap_page_range(addr, end);
  93         flush_tlb_kernel_range(addr, end);
  94  }
  95 +EXPORT_SYMBOL_GPL(unmap_kernel_range);
  96
  97  int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
  98  {
  99 @@ -1360,6 +1361,7 @@ struct vm_struct *get_vm_area(unsigned l
 100         return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
 101                                 -1, GFP_KERNEL, __builtin_return_address(0));
 102  }
 103 +EXPORT_SYMBOL_GPL(get_vm_area);
 104
 105  struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
 106                                 void *caller)
 107 --- a/include/linux/mm.h
 108 +++ b/include/linux/mm.h
 109 @@ -871,6 +871,7 @@ extern void __show_free_areas(unsigned i
 110
 111  int shmem_lock(struct file *file, int lock, struct user_struct *user);
 112  struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
 113 +void shmem_set_file(struct vm_area_struct *vma, struct file *file);
 114  int shmem_zero_setup(struct vm_area_struct *);
 115
 116  #ifndef CONFIG_MMU