On Fri 15-03-13 17:10:45, David Sterba wrote:
> We can't use ext2_dir_entry_2 typecast on big endian machines directly.
> The bytes do not get converted during extX block read due to missing
> flag EXT2_DIRBLOCK_V2_STRUCT passed down to ext2fs_read_dir_block4 from
> ext2fs_process_dir_block. Fixing on the ext2 side needs updating callers
> and (maybe) the library interfaces. We'll fix it on the convert side for
> now.
>
> CC: Jan Kara <[email protected]>
> Signed-off-by: David Sterba <[email protected]>
> ---
> convert.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/convert.c b/convert.c
> index 400488e..7766c09 100644
> --- a/convert.c
> +++ b/convert.c
> @@ -264,10 +264,13 @@ static int dir_iterate_proc(ext2_ino_t dir, int entry,
> struct btrfs_key location;
> struct ext2_dir_entry_2 *dirent = (struct ext2_dir_entry_2 *)old;
You may as well remove this and use 'old' everywhere. But technically the
patch is OK.
Honza
> struct dir_iterate_data *idata = (struct dir_iterate_data *)priv_data;
> + int name_len;
> +
> + name_len = old->name_len & 0xFF;
>
> objectid = dirent->inode + INO_OFFSET;
> - if (!strncmp(dirent->name, dotdot, dirent->name_len)) {
> - if (dirent->name_len == 2) {
> + if (!strncmp(dirent->name, dotdot, name_len)) {
> + if (name_len == 2) {
> BUG_ON(idata->parent != 0);
> idata->parent = objectid;
> }
> @@ -280,7 +283,7 @@ static int dir_iterate_proc(ext2_ino_t dir, int entry,
> location.offset = 0;
> btrfs_set_key_type(&location, BTRFS_INODE_ITEM_KEY);
>
> - file_type = dirent->file_type;
> + file_type = old->name_len >> 8;
> BUG_ON(file_type > EXT2_FT_SYMLINK);
> ret = btrfs_insert_dir_item(idata->trans, idata->root,
> dirent->name, dirent->name_len,
> --
> 1.8.1.4
>
--
Jan Kara <[email protected]>
SUSE Labs, CR
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