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Subject[PATCH 3.16 350/410] libata: Enable queued TRIM for Samsung SSD 860
3.16.57-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Ju Hyung Park <qkrwngud825@gmail.com>

commit ca6bfcb2f6d9deab3924bf901e73622a94900473 upstream.

Samsung explicitly states that queued TRIM is supported for Linux with
860 PRO and 860 EVO.

Make the previous blacklist to cover only 840 and 850 series.

Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
[bwh: Backported to 3.16: There's no ATA_HORKAGE_ZERO_AFTER_TRIM flag]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/ata/libata-core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4237,7 +4237,8 @@ static const struct ata_blacklist_entry
{ "Micron_M5[15]0_*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM, },
{ "Crucial_CT*M550*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM, },
{ "Crucial_CT*MX100*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM, },
- { "Samsung SSD 8*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
+ { "Samsung SSD 840*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
+ { "Samsung SSD 850*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
{ "FCCT*M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },

/* devices that don't properly handle TRIM commands */
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