target/linux/generic/patches-2.6.31/210-mini_fo_2.6.25_fixes.patch

   1 --- a/fs/mini_fo/main.c
   2 +++ b/fs/mini_fo/main.c
   3 @@ -79,6 +79,7 @@ mini_fo_tri_interpose(dentry_t *hidden_d
   4          * of the new inode's fields
   5          */
   6
   7 +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
   8         /*
   9          * original: inode = iget(sb, hidden_inode->i_ino);
  10          */
  11 @@ -87,6 +88,13 @@ mini_fo_tri_interpose(dentry_t *hidden_d
  12                 err = -EACCES;          /* should be impossible??? */
  13                 goto out;
  14         }
  15 +#else
  16 +       inode = mini_fo_iget(sb, iunique(sb, 25));
  17 +       if (IS_ERR(inode)) {
  18 +               err = PTR_ERR(inode);
  19 +               goto out;
  20 +       }
  21 +#endif
  22
  23         /*
  24          * interpose the inode if not already interposed
  25 @@ -184,9 +192,9 @@ mini_fo_parse_options(super_block_t *sb,
  26                                 hidden_root = ERR_PTR(err);
  27                                 goto out;
  28                         }
  29 -                       hidden_root = nd.dentry;
  30 -                       stopd(sb)->base_dir_dentry = nd.dentry;
  31 -                       stopd(sb)->hidden_mnt = nd.mnt;
  32 +                       hidden_root = nd_get_dentry(&nd);
  33 +                       stopd(sb)->base_dir_dentry = nd_get_dentry(&nd);
  34 +                       stopd(sb)->hidden_mnt = nd_get_mnt(&nd);
  35
  36                 } else if(!strncmp("sto=", options, 4)) {
  37                         /* parse the storage dir */
  38 @@ -204,9 +212,9 @@ mini_fo_parse_options(super_block_t *sb,
  39                                 hidden_root2 = ERR_PTR(err);
  40                                 goto out;
  41                         }
  42 -                       hidden_root2 = nd2.dentry;
  43 -                       stopd(sb)->storage_dir_dentry = nd2.dentry;
  44 -                       stopd(sb)->hidden_mnt2 = nd2.mnt;
  45 +                       hidden_root2 = nd_get_dentry(&nd2);
  46 +                       stopd(sb)->storage_dir_dentry = nd_get_dentry(&nd2);
  47 +                       stopd(sb)->hidden_mnt2 = nd_get_mnt(&nd2);
  48                         stohs2(sb) = hidden_root2->d_sb;
  49
  50                         /* validate storage dir, this is done in
  51 --- a/fs/mini_fo/mini_fo.h
  52 +++ b/fs/mini_fo/mini_fo.h
  53 @@ -302,6 +302,10 @@ extern int mini_fo_tri_interpose(dentry_
  54  extern int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
  55                            dentry_t *src_dentry, struct vfsmount *src_mnt);
  56
  57 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
  58 +extern struct inode *mini_fo_iget(struct super_block *sb, unsigned long ino);
  59 +#endif
  60 +
  61  #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
  62  extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd);
  63
  64 @@ -501,6 +505,29 @@ static inline void double_unlock(struct
  65  #endif  /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) */
  66  #endif /* __KERNEL__ */
  67
  68 +
  69 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
  70 +static inline dentry_t *nd_get_dentry(struct nameidata *nd)
  71 +{
  72 +       return (nd->path.dentry);
  73 +}
  74 +
  75 +static inline struct vfsmount *nd_get_mnt(struct nameidata *nd)
  76 +{
  77 +       return (nd->path.mnt);
  78 +}
  79 +#else
  80 +static inline dentry_t *nd_get_dentry(struct nameidata *nd)
  81 +{
  82 +       return (nd->dentry);
  83 +}
  84 +
  85 +static inline struct vfsmount *nd_get_mnt(struct nameidata *nd)
  86 +{
  87 +       return (nd->mnt);
  88 +}
  89 +#endif
  90 +
  91  /*
  92   * Definitions for user and kernel code
  93   */
  94 --- a/fs/mini_fo/super.c
  95 +++ b/fs/mini_fo/super.c
  96 @@ -262,10 +262,31 @@ mini_fo_umount_begin(super_block_t *sb)
  97  }
  98  #endif
  99
 100 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
 101 +struct inode *
 102 +mini_fo_iget(struct super_block *sb, unsigned long ino)
 103 +{
 104 +       struct inode *inode;
 105 +
 106 +       inode = iget_locked(sb, ino);
 107 +       if (!inode)
 108 +               return ERR_PTR(-ENOMEM);
 109 +
 110 +       if (!(inode->i_state & I_NEW))
 111 +               return inode;
 112 +
 113 +       mini_fo_read_inode(inode);
 114 +
 115 +       unlock_new_inode(inode);
 116 +       return inode;
 117 +}
 118 +#endif /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) */
 119
 120  struct super_operations mini_fo_sops =
 121  {
 122 +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
 123         read_inode:             mini_fo_read_inode,
 124 +#endif
 125  #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
 126         write_inode:    mini_fo_write_inode,
 127  #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
 128 --- a/fs/mini_fo/aux.c
 129 +++ b/fs/mini_fo/aux.c
 130 @@ -164,11 +164,11 @@ dentry_t *bpath_walk(super_block_t *sb,
 131         err = vfs_path_lookup(mnt->mnt_root, mnt, bpath+1, 0, &nd);
 132
 133         /* validate */
 134 -       if (err || !nd.dentry || !nd.dentry->d_inode) {
 135 +       if (err || !nd_get_dentry(&nd) || !nd_get_dentry(&nd)->d_inode) {
 136                 printk(KERN_CRIT "mini_fo: bpath_walk: path_walk failed.\n");
 137                 return NULL;
 138         }
 139 -       return nd.dentry;
 140 +       return nd_get_dentry(&nd);
 141  }
 142
 143