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    Subject[PATCH 3.19.y-ckt 141/251] libata: Do not blacklist Micron M500DC
    Date
    3.19.8-ckt4 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: "Martin K. Petersen" <martin.petersen@oracle.com>

    commit 243918be6393f643e513a26e7882e6ae06ff7717 upstream.

    Queued TRIM got disabled on Micron M500DC drives thanks to the
    "Micron_M500*" pattern we had in place to accommodate the previous
    generation of this drive family. Tweak the blacklist entry slightly so
    we only disable queued TRIM for the non-DC variants of M500 drives.

    Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
    Signed-off-by: Tejun Heo <tj@kernel.org>
    Signed-off-by: Kamal Mostafa <kamal@canonical.com>
    ---
    drivers/ata/libata-core.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
    index 0b8d57c..0f762ab 100644
    --- a/drivers/ata/libata-core.c
    +++ b/drivers/ata/libata-core.c
    @@ -4233,7 +4233,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
    { "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER },

    /* devices that don't properly handle queued TRIM commands */
    - { "Micron_M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM |
    + { "Micron_M500_*", NULL, ATA_HORKAGE_NO_NCQ_TRIM |
    ATA_HORKAGE_ZERO_AFTER_TRIM, },
    { "Crucial_CT*M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM |
    ATA_HORKAGE_ZERO_AFTER_TRIM, },
    --
    1.9.1


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