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    SubjectRe: [PATCH RESEND 0/1] AHCI: Optimize interrupt processing
    Yo,

    On Fri, Jul 26, 2013 at 05:43:13PM -0700, Nicholas A. Bellinger wrote:
    > Considering there can be more than a single ata_device hanging off each
    > ata_port, the '*sdev = ap->link.device[0].sdev' in __ata_qc_from_tag()
    > is definitely bogus, but I'm not sure how else to correlate
    > blk-mq/scsi-mq per device descriptors to existing code expecting
    > ata_port->qcmd[] descriptors to be shared across multiple devices..
    >
    > Tejun..?

    I have no idea. Let's please just do simpler conversion and worry
    about embedding qc's into scsi_cmnds later. libata isn't a normal
    SCSI driver and has a rather its own thick midlayer doing the
    impedance matching inbetween && I really don't think there is too much
    benefit to be reaped from embedding qc's into scsi_cmnds.

    Thanks.

    --
    tejun


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