linux-kernel - [PATCH 3.12 004/111] libata: Blacklist queued TRIM on all Samsung 800-series

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Date:	Wed, 10 Jun 2015 17:25:53 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Tejun Heo <tj@...nel.org>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 004/111] libata: Blacklist queued TRIM on all Samsung 800-series

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

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

===============

commit 9a9324d3969678d44b330e1230ad2c8ae67acf81 upstream.

The queued TRIM problems appear to be generic to Samsung's firmware and
not tied to a particular model. A recent update to the 840 EVO firmware
introduced the same issue as we saw on 850 Pro.

Blacklist queued TRIM on all 800-series drives while we work this issue
with Samsung.

Reported-by: Günter Waller <g.wal@....de>
Reported-by: Sven Köhler <sven.koehler@...il.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Tejun Heo <tj@...nel.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 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 38c4394ccc05..c36bd031ebdd 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4229,7 +4229,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "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 850 PRO*",	NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
+	{ "Samsung SSD 8*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
 
 	/*
 	 * Some WD SATA-I drives spin up and down erratically when the link
-- 
2.4.2

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