> +/*
> + * Returns a negative value if @_a has a lower LBA than @_b, zero if
> + * both have the same LBA and a positive value otherwise.
> + */
> +static int scsi_cmp_lba(void *priv, const struct list_head *_a,
> + const struct list_head *_b)
> +{
> + struct scsi_cmnd *a = list_entry(_a, typeof(*a), eh_entry);
> + struct scsi_cmnd *b = list_entry(_b, typeof(*b), eh_entry);
> + const sector_t pos_a = blk_rq_pos(scsi_cmd_to_rq(a));
> + const sector_t pos_b = blk_rq_pos(scsi_cmd_to_rq(b));
The SCSI core has no concept of LBAs. Even assuming something like
this is a good idea (and I'm very doubtful) it would have to live
in sd.c.
