[PATCH 4.4 32/40] libata: whitelist all SAMSUNG MZ7KM* solid-state disks

From: Greg Kroah-Hartman
Date: Thu Dec 20 2018 - 04:44:12 EST


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

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

[ Upstream commit fd6f32f78645db32b6b95a42e45da2ddd6de0e67 ]

These devices support read zero after trim (RZAT), as they advertise to
the OS. However, the OS doesn't believe the SSDs unless they are
explicitly whitelisted.

Acked-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Juha-Matti Tilli <juha-matti.tilli@xxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/ata/libata-core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index ba514fa733de..d543172b20b3 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4297,6 +4297,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "SSD*INTEL*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, },
{ "Samsung*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, },
{ "SAMSUNG*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, },
+ { "SAMSUNG*MZ7KM*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, },
{ "ST[1248][0248]0[FH]*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, },

/*
--
2.19.1