EXT2_RESERVE_WINDOW_NOT_ALLOCATED
rsv->rsv_start = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;
rsv->rsv_end = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;
return (rsv->_rsv_end == EXT2_RESERVE_WINDOW_NOT_ALLOCATED);
rsv->rsv_start = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;
rsv->rsv_end = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;
sbi->s_rsv_window_head.rsv_start = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;
sbi->s_rsv_window_head.rsv_end = EXT2_RESERVE_WINDOW_NOT_ALLOCATED;