Function libe2fs_sys::ext2fs_alloc_block3

pub unsafe extern "C" fn ext2fs_alloc_block3(
    fs: ext2_filsys,
    goal: blk64_t,
    block_buf: *mut c_char,
    ret: *mut blk64_t,
    ctx: *mut blk_alloc_ctx
) -> errcode_t