[3.16.y-ckt stable] Patch "libata: Blacklist queued TRIM on Samsung SSD 850 Pro" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Thu May 28 10:56:25 UTC 2015


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

    libata: Blacklist queued TRIM on Samsung SSD 850 Pro

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-ckt13.

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 88f3819605e414ba34c86aa0dd3dcc9c4784a041 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen at oracle.com>
Date: Fri, 27 Mar 2015 15:17:21 -0400
Subject: libata: Blacklist queued TRIM on Samsung SSD 850 Pro

commit 6fc4d97a4987c5d247655a157a9377996626221a upstream.

Blacklist queued TRIM on this drive for now.

Reported-by: Stefan Keller <linux-list at zahlenfresser.de>
Signed-off-by: Martin K. Petersen <martin.petersen at oracle.com>
Signed-off-by: Tejun Heo <tj at kernel.org>
[bwh: Backported to 3.16: adjust context and drop ZERO_AFTER_TRIM flag]
Signed-off-by: Ben Hutchings <ben at decadent.org.uk>
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 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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