[PATCH 3.16.y-ckt 078/118] libata: force disable trim for SuperSSpeed S238

[Luis Henriques]

3.16.7-ckt16 -stable review patch.  If anyone has any objections, please let me know.

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

From: Arne Fitzenreiter <arne_f@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 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 ef37e80fe9d5..d9ea12a004bc 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4232,6 +4232,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "Crucial_CT*MX100*",		"MU01", ATA_HORKAGE_NO_NCQ_TRIM, },
 	{ "Samsung SSD 8*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
 
+	/* devices that don't properly handle TRIM commands */
+	{ "SuperSSpeed S238*",		NULL,	ATA_HORKAGE_NOTRIM, },
+
 	/*
 	 * Some WD SATA-I drives spin up and down erratically when the link
 	 * is put into the slumber mode.  We don't have full list of the
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/