static int ext4_finish_convert_inline_dir(handle_t *handle,
struct inode *inode,
struct buffer_head *dir_block,
void *buf,
int inline_size)
{
int err, csum_size = 0, header_size = 0;
struct ext4_dir_entry_2 *de;
struct ext4_dir_entry_tail *t;
void *target = dir_block->b_data;
/*
* First create "." and ".." and then copy the dir information
* back to the block.
*/
de = (struct ext4_dir_entry_2 *)target;
de = ext4_init_dot_dotdot(inode, de,
inode->i_sb->s_blocksize, csum_size,
le32_to_cpu(((struct ext4_dir_entry_2 *)buf)->inode), 1);
header_size = (void *)de - target;
memcpy((void *)de, buf + EXT4_INLINE_DOTDOT_SIZE,
inline_size - EXT4_INLINE_DOTDOT_SIZE);
if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
csum_size = sizeof(struct ext4_dir_entry_tail);
inode->i_size = inode->i_sb->s_blocksize;
i_size_write(inode, inode->i_sb->s_blocksize);
EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize;
ext4_update_final_de(dir_block->b_data,
inline_size - EXT4_INLINE_DOTDOT_SIZE + header_size,
inode->i_sb->s_blocksize - csum_size);
if (csum_size) {
t = EXT4_DIRENT_TAIL(dir_block->b_data,
inode->i_sb->s_blocksize);
initialize_dirent_tail(t, inode->i_sb->s_blocksize);
}
set_buffer_uptodate(dir_block);
err = ext4_handle_dirty_dirent_node(handle, inode, dir_block);
if (err)
goto out;
set_buffer_verified(dir_block);
out:
return err;
}
/*
* Try to create the inline data for the new dir.
* If it succeeds, return 0, otherwise return the error.
* In case of ENOSPC, the caller should create the normal disk layout dir.
*/
int ext4_try_create_inline_dir(handle_t *handle, struct inode *parent,
struct inode *inode)
{
int ret, inline_size = EXT4_MIN_INLINE_DATA_SIZE;
struct ext4_iloc iloc;
struct ext4_dir_entry_2 *de;
ret = ext4_get_inode_loc(inode, &iloc);
if (ret)
return ret;
ret = ext4_prepare_inline_data(handle, inode, inline_size);
if (ret)
goto out;
de = (struct ext4_dir_entry_2 *)ext4_raw_inode(&iloc)->i_block;
ext4_init_dot_dotdot(parent, inode, de, inline_size);
inode->i_size = EXT4_I(inode)->i_disksize = inline_size;
out:
brelse(iloc.bh);
return ret;
}