diff options
Diffstat (limited to 'fs/reiserfs/dev.c')
| -rw-r--r-- | fs/reiserfs/dev.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/fs/reiserfs/dev.c b/fs/reiserfs/dev.c deleted file mode 100644 index 6f6056f337..0000000000 --- a/fs/reiserfs/dev.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * (C) Copyright 2003 - 2004 - * Sysgo AG, <www.elinos.com>, Pavel Bartusek <pba@sysgo.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - - -#include <common.h> -#if (CONFIG_COMMANDS & CFG_CMD_REISER) - -#include <config.h> -#include <reiserfs.h> - -#include "reiserfs_private.h" - -static block_dev_desc_t *reiserfs_block_dev_desc; -static disk_partition_t part_info; - - -int reiserfs_set_blk_dev(block_dev_desc_t *rbdd, int part) -{ - reiserfs_block_dev_desc = rbdd; - - if (part == 0) { - /* disk doesn't use partition table */ - part_info.start = 0; - part_info.size = rbdd->lba; - part_info.blksz = rbdd->blksz; - } else { - if (get_partition_info (reiserfs_block_dev_desc, part, &part_info)) { - return 0; - } - } - return (part_info.size); -} - - -int reiserfs_devread (int sector, int byte_offset, int byte_len, char *buf) -{ - char sec_buf[SECTOR_SIZE]; - unsigned block_len; -/* - unsigned len = byte_len; - u8 *start = buf; -*/ - /* - * Check partition boundaries - */ - if (sector < 0 - || ((sector + ((byte_offset + byte_len - 1) >> SECTOR_BITS)) - >= part_info.size)) { -/* errnum = ERR_OUTSIDE_PART; */ - printf (" ** reiserfs_devread() read outside partition\n"); - return 0; - } - - /* - * Get the read to the beginning of a partition. - */ - sector += byte_offset >> SECTOR_BITS; - byte_offset &= SECTOR_SIZE - 1; - -#if defined(DEBUG) - printf (" <%d, %d, %d> ", sector, byte_offset, byte_len); -#endif - - - if (reiserfs_block_dev_desc == NULL) - return 0; - - - if (byte_offset != 0) { - /* read first part which isn't aligned with start of sector */ - if (reiserfs_block_dev_desc->block_read(reiserfs_block_dev_desc->dev, - part_info.start+sector, 1, (unsigned long *)sec_buf) != 1) { - printf (" ** reiserfs_devread() read error\n"); - return 0; - } - memcpy(buf, sec_buf+byte_offset, min(SECTOR_SIZE-byte_offset, byte_len)); - buf+=min(SECTOR_SIZE-byte_offset, byte_len); - byte_len-=min(SECTOR_SIZE-byte_offset, byte_len); - sector++; - } - - /* read sector aligned part */ - block_len = byte_len & ~(SECTOR_SIZE-1); - if (reiserfs_block_dev_desc->block_read(reiserfs_block_dev_desc->dev, - part_info.start+sector, block_len/SECTOR_SIZE, (unsigned long *)buf) != - block_len/SECTOR_SIZE) { - printf (" ** reiserfs_devread() read error - block\n"); - return 0; - } - buf+=block_len; - byte_len-=block_len; - sector+= block_len/SECTOR_SIZE; - - if ( byte_len != 0 ) { - /* read rest of data which are not in whole sector */ - if (reiserfs_block_dev_desc->block_read(reiserfs_block_dev_desc->dev, - part_info.start+sector, 1, (unsigned long *)sec_buf) != 1) { - printf (" ** reiserfs_devread() read error - last part\n"); - return 0; - } - memcpy(buf, sec_buf, byte_len); - } - - return 1; -} - -#endif /* CFG_CMD_REISERFS */ |