linux.conf.au 2003
Create the superblock - cont.

static int pcihpfs_fill_super(struct super_block *sb, void *data, int silent)
{       
        struct inode *inode;
        struct dentry *root;
        
        sb->s_blocksize = PAGE_CACHE_SIZE;
        sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
        sb->s_magic = PCIHPFS_MAGIC;
        sb->s_op = &pcihpfs_ops;

        inode = pcihpfs_get_inode(sb, S_IFDIR | 0755, 0);
        if (!inode) {
                dbg("%s: could not get inode!\n",__FUNCTION__);
                return -ENOMEM;
        }       
                
        root = d_alloc_root(inode);
        if (!root) {
                dbg("%s: could not get root dentry!\n",__FUNCTION__);
                iput(inode);
                return -ENOMEM;
        }
        sb->s_root = root;
        return 0;
}