diff options
| author | Frederic Leroy | 2013-06-26 18:11:25 +0200 |
|---|---|---|
| committer | Tom Rini | 2013-07-15 17:06:13 -0400 |
| commit | 04735e9c5578dd4f3584be5454b9779e8e5c2af9 (patch) | |
| tree | 5641d35f98ffda64ff900a8356639eeb88f320a5 /include/ext4fs.h | |
| parent | 0eb33ad253026d5a773854dd42b2a56937678aa9 (diff) | |
Fix ext2/ext4 filesystem accesses beyond 2TiB
With CONFIG_SYS_64BIT_LBA, lbaint_t gets defined as a 64-bit type,
which is required to represent block numbers for storage devices that
exceed 2TiB (the block size usually is 512B), e.g. recent hard drives
We now use lbaint_t for partition offset to reflect the lbaint_t change,
and access partitions beyond or crossing the 2.1TiB limit.
This required changes to signature of ext4fs_devread(), and type of all
variables relatives to block sector.
ext2/ext4 fs uses logical block represented by a 32 bit value. Logical
block is a multiple of device block sector. To avoid overflow problem
when calling ext4fs_devread(), we need to cast the sector parameter.
Signed-off-by: Frédéric Leroy <fredo@starox.org>
Diffstat (limited to 'include/ext4fs.h')
| -rw-r--r-- | include/ext4fs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/ext4fs.h b/include/ext4fs.h index 379f7eb5e9f..24293803966 100644 --- a/include/ext4fs.h +++ b/include/ext4fs.h @@ -135,7 +135,7 @@ int ext4fs_mount(unsigned part_length); void ext4fs_close(void); int ext4fs_ls(const char *dirname); void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot); -int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf); +int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf); void ext4fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info); long int read_allocated_block(struct ext2_inode *inode, int fileblock); int ext4fs_probe(block_dev_desc_t *fs_dev_desc, |