[3.16.y-ckt stable] Patch "Add factory recertified Crucial M500s to blacklist" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    Add factory recertified Crucial M500s to blacklist

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt17.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From e4b3d152c938379cf690f628a0f110cf8d0cd132 Mon Sep 17 00:00:00 2001
From: "Guillermo A. Amaral" <g at maral.me>
Date: Tue, 25 Aug 2015 23:29:13 -0700
Subject: Add factory recertified Crucial M500s to blacklist

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 at maral.me>
Signed-off-by: Tejun Heo <tj at kernel.org>
[ luis: backported to 3.16:
  - dropped ATA_HORKAGE_ZERO_AFTER_TRIM flag
  - adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.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, },