1  struct buffer_head {
2    char *b_data;
3  };
asfs_deletebnode(struct buffer_head * bhsec)4    void asfs_deletebnode( struct buffer_head *bhsec)  {
5      if (bhsec == 0)   {
6      void *bnc2 = (void *) bhsec->b_data;
7      if (bnc2)       return;
8      if (bhsec)       __brelse(bhsec);
9    }
10  }
11