target/linux/generic/patches-2.6.37/980-vm_exports.patch

   1 --- a/mm/shmem.c
   2 +++ b/mm/shmem.c
   3 @@ -30,6 +30,7 @@
   4  #include <linux/module.h>
   5  #include <linux/percpu_counter.h>
   6  #include <linux/swap.h>
   7 +#include <linux/ima.h>
   8
   9  static struct vfsmount *shm_mnt;
  10
  11 @@ -2703,6 +2704,16 @@ out:
  12
  13  /* common code */
  14
  15 +void shmem_set_file(struct vm_area_struct *vma, struct file *file)
  16 +{
  17 +       ima_counts_get(file);
  18 +       if (vma->vm_file)
  19 +               fput(vma->vm_file);
  20 +       vma->vm_file = file;
  21 +       vma->vm_ops = &shmem_vm_ops;
  22 +}
  23 +EXPORT_SYMBOL_GPL(shmem_set_file);
  24 +
  25  /**
  26   * shmem_file_setup - get an unlinked file living in tmpfs
  27   * @name: name for dentry (to be seen in /proc/<pid>/maps
  28 @@ -2780,10 +2791,7 @@ int shmem_zero_setup(struct vm_area_stru
  29         if (IS_ERR(file))
  30                 return PTR_ERR(file);
  31
  32 -       if (vma->vm_file)
  33 -               fput(vma->vm_file);
  34 -       vma->vm_file = file;
  35 -       vma->vm_ops = &shmem_vm_ops;
  36 +       shmem_set_file(vma, file);
  37         vma->vm_flags |= VM_CAN_NONLINEAR;
  38         return 0;
  39  }
  40 --- a/fs/file.c
  41 +++ b/fs/file.c
  42 @@ -264,6 +264,7 @@ int expand_files(struct files_struct *fi
  43         /* All good, so we try */
  44         return expand_fdtable(files, nr);
  45  }
  46 +EXPORT_SYMBOL_GPL(expand_files);
  47
  48  static int count_open_files(struct fdtable *fdt)
  49  {
  50 --- a/kernel/exit.c
  51 +++ b/kernel/exit.c
  52 @@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
  53
  54         return files;
  55  }
  56 +EXPORT_SYMBOL_GPL(get_files_struct);
  57
  58  void put_files_struct(struct files_struct *files)
  59  {
  60 @@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
  61                 rcu_read_unlock();
  62         }
  63  }
  64 +EXPORT_SYMBOL_GPL(put_files_struct);
  65
  66  void reset_files_struct(struct files_struct *files)
  67  {
  68 --- a/kernel/fork.c
  69 +++ b/kernel/fork.c
  70 @@ -191,6 +191,7 @@ void __put_task_struct(struct task_struc
  71         if (!profile_handoff_task(tsk))
  72                 free_task(tsk);
  73  }
  74 +EXPORT_SYMBOL_GPL(__put_task_struct);
  75
  76  /*
  77   * macro override instead of weak attribute alias, to workaround
  78 --- a/kernel/sched.c
  79 +++ b/kernel/sched.c
  80 @@ -4776,6 +4776,7 @@ int can_nice(const struct task_struct *p
  81         return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
  82                 capable(CAP_SYS_NICE));
  83  }
  84 +EXPORT_SYMBOL_GPL(can_nice);
  85
  86  #ifdef __ARCH_WANT_SYS_NICE
  87
  88 --- a/mm/memory.c
  89 +++ b/mm/memory.c
  90 @@ -1201,6 +1201,7 @@ unsigned long zap_page_range(struct vm_a
  91                 tlb_finish_mmu(tlb, address, end);
  92         return end;
  93  }
  94 +EXPORT_SYMBOL_GPL(zap_page_range);
  95
  96  /**
  97   * zap_vma_ptes - remove ptes mapping the vma
  98 @@ -2616,6 +2617,7 @@ int vmtruncate_range(struct inode *inode
  99
 100         return 0;
 101  }
 102 +EXPORT_SYMBOL_GPL(vmtruncate_range);
 103
 104  /*
 105   * We enter with non-exclusive mmap_sem (to exclude vma changes,
 106 --- a/mm/vmalloc.c
 107 +++ b/mm/vmalloc.c
 108 @@ -1192,6 +1192,7 @@ void unmap_kernel_range(unsigned long ad
 109         vunmap_page_range(addr, end);
 110         flush_tlb_kernel_range(addr, end);
 111  }
 112 +EXPORT_SYMBOL_GPL(unmap_kernel_range);
 113
 114  int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
 115  {
 116 @@ -1307,6 +1308,7 @@ struct vm_struct *get_vm_area(unsigned l
 117         return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
 118                                 -1, GFP_KERNEL, __builtin_return_address(0));
 119  }
 120 +EXPORT_SYMBOL_GPL(get_vm_area);
 121
 122  struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
 123                                 void *caller)
 124 --- a/include/linux/mm.h
 125 +++ b/include/linux/mm.h
 126 @@ -746,6 +746,7 @@ extern void show_free_areas(void);
 127
 128  int shmem_lock(struct file *file, int lock, struct user_struct *user);
 129  struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
 130 +void shmem_set_file(struct vm_area_struct *vma, struct file *file);
 131  int shmem_zero_setup(struct vm_area_struct *);
 132
 133  #ifndef CONFIG_MMU