linux-kernel - [PATCH 3.16.y-ckt 118/130] Add factory recertified Crucial M500s to blacklist

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Date:	Fri,  4 Sep 2015 14:08:26 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	"Guillermo A. Amaral" <g@...al.me>, Tejun Heo <tj@...nel.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 118/130] Add factory recertified Crucial M500s to blacklist

3.16.7-ckt17 -stable review patch.  If anyone has any objections, please let me know.

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

From: "Guillermo A. Amaral" <g@...al.me>

commit 7a7184b01aa9deb86df661c6f7cbcf69a95b728c upstream.

The Crucial M500 is known to have issues with queued TRIM commands, the
factory recertified SSDs use a different model number naming convention
which causes them to get ignored by the blacklist.

The new naming convention boils down to: s/Crucial_/FC/

Signed-off-by: Guillermo A. Amaral <g@...al.me>
Signed-off-by: Tejun Heo <tj@...nel.org>
[ luis: backported to 3.16:
  - dropped ATA_HORKAGE_ZERO_AFTER_TRIM flag
  - adjusted context ]
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 c9707bcf430c..cfa2982d7286 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4231,6 +4231,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "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, },
+	{ "FCCT*M500*",			NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
 
 	/* devices that don't properly handle TRIM commands */
 	{ "SuperSSpeed S238*",		NULL,	ATA_HORKAGE_NOTRIM, },
--
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