linux-kernel - [PATCH 3.16.y-ckt 020/110] libata: Blacklist queued TRIM on Samsung SSD 850 Pro

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Message-Id: <1433512713-22984-21-git-send-email-luis.henriques@canonical.com>
Date:	Fri,  5 Jun 2015 14:57:03 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Tejun Heo <tj@...nel.org>, Ben Hutchings <ben@...adent.org.uk>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 020/110] libata: Blacklist queued TRIM on Samsung SSD 850 Pro

3.16.7-ckt13 -stable review patch.  If anyone has any objections, please let me know.

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

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

commit 6fc4d97a4987c5d247655a157a9377996626221a upstream.

Blacklist queued TRIM on this drive for now.

Reported-by: Stefan Keller <linux-list@...lenfresser.de>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Tejun Heo <tj@...nel.org>
[bwh: Backported to 3.16: adjust context and drop ZERO_AFTER_TRIM flag]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 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 8804fb879252..7d094261d8ca 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4229,6 +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, },
 
 	/*
 	 * Some WD SATA-I drives spin up and down erratically when the link
--
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