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/*

 * file.c

 *

 * Copyright (c) 1999 Al Smith

 *

 * Portions derived from work (c) 1995,1996 Christian Vogelgsang.

 */

#include <linux/buffer_head.h>

#include <linux/efs_fs.h>

int efs_get_block(struct inode *inode, sector_t iblock,

                  struct buffer_head *bh_result, int create)

{

        int error = -EROFS;

        long phys;

        if (create)

                return error;

        if (iblock >= inode->i_blocks) {

#ifdef DEBUG

                /*

                 * i have no idea why this happens as often as it does

                 */

                printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",

                        block,

                        inode->i_blocks,

                        inode->i_size);

#endif

                return 0;

        }

        phys = efs_map_block(inode, iblock);

        if (phys)

                map_bh(bh_result, inode->i_sb, phys);

        return 0;

}

int efs_bmap(struct inode *inode, efs_block_t block) {

        if (block < 0) {

                printk(KERN_WARNING "EFS: bmap(): block < 0\n");

                return 0;

        }

        /* are we about to read past the end of a file ? */

        if (!(block < inode->i_blocks)) {

#ifdef DEBUG

                /*

                 * i have no idea why this happens as often as it does

                 */

                printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",

                        block,

                        inode->i_blocks,

                        inode->i_size);

#endif

                return 0;

        }

        return efs_map_block(inode, block);

}