target/linux/generic/patches-2.6.38/980-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 @@ -2710,6 +2711,16 @@ 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 @@ -2787,9 +2798,6 @@ 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         return 0;
  38  }
  39 --- a/fs/file.c
  40 +++ b/fs/file.c
  41 @@ -264,6 +264,7 @@ int expand_files(struct files_struct *fi
  42         /* All good, so we try */
  43         return expand_fdtable(files, nr);
  44  }
  45 +EXPORT_SYMBOL_GPL(expand_files);
  46
  47  static int count_open_files(struct fdtable *fdt)
  48  {
  49 --- a/kernel/exit.c
  50 +++ b/kernel/exit.c
  51 @@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
  52
  53         return files;
  54  }
  55 +EXPORT_SYMBOL_GPL(get_files_struct);
  56
  57  void put_files_struct(struct files_struct *files)
  58  {
  59 @@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
  60                 rcu_read_unlock();
  61         }
  62  }
  63 +EXPORT_SYMBOL_GPL(put_files_struct);
  64
  65  void reset_files_struct(struct files_struct *files)
  66  {
  67 --- a/kernel/fork.c
  68 +++ b/kernel/fork.c
  69 @@ -193,6 +193,7 @@ void __put_task_struct(struct task_struc
  70         if (!profile_handoff_task(tsk))
  71                 free_task(tsk);
  72  }
  73 +EXPORT_SYMBOL_GPL(__put_task_struct);
  74
  75  /*
  76   * macro override instead of weak attribute alias, to workaround
  77 --- a/kernel/sched.c
  78 +++ b/kernel/sched.c
  79 @@ -4640,6 +4640,7 @@ int can_nice(const struct task_struct *p
  80         return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
  81                 capable(CAP_SYS_NICE));
  82  }
  83 +EXPORT_SYMBOL_GPL(can_nice);
  84
  85  #ifdef __ARCH_WANT_SYS_NICE
  86
  87 --- a/mm/memory.c
  88 +++ b/mm/memory.c
  89 @@ -1229,6 +1229,7 @@ unsigned long zap_page_range(struct vm_a
  90                 tlb_finish_mmu(tlb, address, end);
  91         return end;
  92  }
  93 +EXPORT_SYMBOL_GPL(zap_page_range);
  94
  95  /**
  96   * zap_vma_ptes - remove ptes mapping the vma
  97 @@ -2692,6 +2693,7 @@ int vmtruncate_range(struct inode *inode
  98
  99         return 0;
 100  }
 101 +EXPORT_SYMBOL_GPL(vmtruncate_range);
 102
 103  /*
 104   * We enter with non-exclusive mmap_sem (to exclude vma changes,
 105 --- a/mm/vmalloc.c
 106 +++ b/mm/vmalloc.c
 107 @@ -1193,6 +1193,7 @@ void unmap_kernel_range(unsigned long ad
 108         vunmap_page_range(addr, end);
 109         flush_tlb_kernel_range(addr, end);
 110  }
 111 +EXPORT_SYMBOL_GPL(unmap_kernel_range);
 112
 113  int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
 114  {
 115 @@ -1308,6 +1309,7 @@ struct vm_struct *get_vm_area(unsigned l
 116         return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
 117                                 -1, GFP_KERNEL, __builtin_return_address(0));
 118  }
 119 +EXPORT_SYMBOL_GPL(get_vm_area);
 120
 121  struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
 122                                 void *caller)
 123 --- a/include/linux/mm.h
 124 +++ b/include/linux/mm.h
 125 @@ -856,6 +856,7 @@ extern void show_free_areas(void);
 126
 127  int shmem_lock(struct file *file, int lock, struct user_struct *user);
 128  struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
 129 +void shmem_set_file(struct vm_area_struct *vma, struct file *file);
 130  int shmem_zero_setup(struct vm_area_struct *);
 131
 132  #ifndef CONFIG_MMU