diff options
Diffstat (limited to 'fs/ext4/dev.c')
| -rw-r--r-- | fs/ext4/dev.c | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/fs/ext4/dev.c b/fs/ext4/dev.c index 9e85228eda..1596a92b9a 100644 --- a/fs/ext4/dev.c +++ b/fs/ext4/dev.c @@ -38,26 +38,20 @@ #include <common.h> #include <config.h> +#include <ext4fs.h> #include <ext_common.h> +unsigned long part_offset; + static block_dev_desc_t *ext4fs_block_dev_desc; -static disk_partition_t part_info; +static disk_partition_t *part_info; -int ext4fs_set_blk_dev(block_dev_desc_t *rbdd, int part) +void ext4fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info) { ext4fs_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(ext4fs_block_dev_desc, - part, &part_info)) - return 0; - } - return part_info.size; + part_info = info; + part_offset = info->start; + get_fs()->total_sect = (info->size * info->blksz) / SECTOR_SIZE; } int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) @@ -68,7 +62,7 @@ int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) /* Check partition boundaries */ if ((sector < 0) || ((sector + ((byte_offset + byte_len - 1) >> SECTOR_BITS)) >= - part_info.size)) { + part_info->size)) { printf("%s read outside partition %d\n", __func__, sector); return 0; } @@ -88,7 +82,7 @@ int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) /* read first part which isn't aligned with start of sector */ if (ext4fs_block_dev_desc-> block_read(ext4fs_block_dev_desc->dev, - part_info.start + sector, 1, + part_info->start + sector, 1, (unsigned long *) sec_buf) != 1) { printf(" ** ext2fs_devread() read error **\n"); return 0; @@ -111,14 +105,14 @@ int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) block_len = SECTOR_SIZE; ext4fs_block_dev_desc->block_read(ext4fs_block_dev_desc->dev, - part_info.start + sector, + part_info->start + sector, 1, (unsigned long *)p); memcpy(buf, p, byte_len); return 1; } if (ext4fs_block_dev_desc->block_read(ext4fs_block_dev_desc->dev, - part_info.start + sector, + part_info->start + sector, block_len / SECTOR_SIZE, (unsigned long *) buf) != block_len / SECTOR_SIZE) { @@ -134,7 +128,7 @@ int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) /* read rest of data which are not in whole sector */ if (ext4fs_block_dev_desc-> block_read(ext4fs_block_dev_desc->dev, - part_info.start + sector, 1, + part_info->start + sector, 1, (unsigned long *) sec_buf) != 1) { printf("* %s read error - last part\n", __func__); return 0; |