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    Subject[PATCH 3.4 027/107] libata: force disable trim for SuperSSpeed S238
    Date
    From: Arne Fitzenreiter <arne_f@ipfire.org>

    3.4.111-rc1 review patch. If anyone has any objections, please let me know.

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


    commit cda57b1b05cf7b8b99ab4b732bea0b05b6c015cc upstream.

    This device loses blocks, often the partition table area, on trim.
    Disable TRIM.
    http://pcengines.ch/msata16a.htm

    Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
    Signed-off-by: Tejun Heo <tj@kernel.org>
    Signed-off-by: Zefan Li <lizefan@huawei.com>
    ---
    drivers/ata/libata-core.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
    index b5d532f..5a3b08b 100644
    --- a/drivers/ata/libata-core.c
    +++ b/drivers/ata/libata-core.c
    @@ -4144,6 +4144,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
    { "WD My Book", NULL, ATA_HORKAGE_1_5_GBPS, },
    { "Seagate FreeAgent GoFlex", NULL, ATA_HORKAGE_1_5_GBPS, },

    + /* devices that don't properly handle TRIM commands */
    + { "SuperSSpeed S238*", NULL, ATA_HORKAGE_NOTRIM, },
    +
    /*
    * Devices which choke on SETXFER. Applies only if both the
    * device and controller are SATA.
    --
    1.9.1
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