target/linux/generic/patches-3.7/950-vm_exports.patch

   1 --- a/mm/shmem.c
   2 +++ b/mm/shmem.c
   3 @@ -2769,6 +2769,15 @@ 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 +}
  14 +EXPORT_SYMBOL_GPL(shmem_set_file);
  15 +
  16  /**
  17   * shmem_file_setup - get an unlinked file living in tmpfs
  18   * @name: name for dentry (to be seen in /proc/<pid>/maps
  19 @@ -2845,11 +2854,8 @@ int shmem_zero_setup(struct vm_area_stru
  20         file = shmem_file_setup("dev/zero", size, vma->vm_flags);
  21         if (IS_ERR(file))
  22                 return PTR_ERR(file);
  23 +       shmem_set_file(vma, file);
  24
  25 -       if (vma->vm_file)
  26 -               fput(vma->vm_file);
  27 -       vma->vm_file = file;
  28 -       vma->vm_ops = &shmem_vm_ops;
  29         return 0;
  30  }
  31
  32 --- a/fs/file.c
  33 +++ b/fs/file.c
  34 @@ -270,6 +270,7 @@ static inline void __set_open_fd(int fd,
  35  {
  36         __set_bit(fd, fdt->open_fds);
  37  }
  38 +EXPORT_SYMBOL_GPL(expand_files);
  39
  40  static inline void __clear_open_fd(int fd, struct fdtable *fdt)
  41  {
  42 --- a/kernel/exit.c
  43 +++ b/kernel/exit.c
  44 @@ -461,6 +461,7 @@ void daemonize(const char *name, ...)
  45
  46         reparent_to_kthreadd();
  47  }
  48 +EXPORT_SYMBOL_GPL(get_files_struct);
  49
  50  EXPORT_SYMBOL(daemonize);
  51
  52 @@ -603,6 +604,7 @@ static void exit_mm(struct task_struct *
  53         mm_update_next_owner(mm);
  54         mmput(mm);
  55  }
  56 +EXPORT_SYMBOL_GPL(put_files_struct);
  57
  58  /*
  59   * When we die, we re-parent all our children, and try to:
  60 --- a/kernel/sched/core.c
  61 +++ b/kernel/sched/core.c
  62 @@ -3565,6 +3565,7 @@ int can_nice(const struct task_struct *p
  63         return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
  64                 capable(CAP_SYS_NICE));
  65  }
  66 +EXPORT_SYMBOL_GPL(can_nice);
  67
  68  #ifdef __ARCH_WANT_SYS_NICE
  69
  70 --- a/mm/memory.c
  71 +++ b/mm/memory.c
  72 @@ -1415,6 +1415,7 @@ void zap_page_range(struct vm_area_struc
  73         mmu_notifier_invalidate_range_end(mm, start, end);
  74         tlb_finish_mmu(&tlb, start, end);
  75  }
  76 +EXPORT_SYMBOL_GPL(zap_page_range);
  77
  78  /**
  79   * zap_page_range_single - remove user pages in a given range
  80 --- a/mm/vmalloc.c
  81 +++ b/mm/vmalloc.c
  82 @@ -1266,6 +1266,7 @@ void unmap_kernel_range(unsigned long ad
  83         vunmap_page_range(addr, end);
  84         flush_tlb_kernel_range(addr, end);
  85  }
  86 +EXPORT_SYMBOL_GPL(unmap_kernel_range);
  87
  88  int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
  89  {
  90 @@ -1403,6 +1404,7 @@ struct vm_struct *get_vm_area(unsigned l
  91         return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
  92                                 -1, GFP_KERNEL, __builtin_return_address(0));
  93  }
  94 +EXPORT_SYMBOL_GPL(get_vm_area);
  95
  96  struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
  97                                 const void *caller)
  98 --- a/include/linux/shmem_fs.h
  99 +++ b/include/linux/shmem_fs.h
 100 @@ -47,6 +47,8 @@ extern int shmem_init(void);
 101  extern int shmem_fill_super(struct super_block *sb, void *data, int silent);
 102  extern struct file *shmem_file_setup(const char *name,
 103                                         loff_t size, unsigned long flags);
 104 +
 105 +extern void shmem_set_file(struct vm_area_struct *vma, struct file *file);
 106  extern int shmem_zero_setup(struct vm_area_struct *);
 107  extern int shmem_lock(struct file *file, int lock, struct user_struct *user);
 108  extern void shmem_unlock_mapping(struct address_space *mapping);