From: Martin K. Petersen <martin.petersen@oracle.com>
Date: Fri, 27 Mar 2015 19:17:21 +0000 (-0400)
Subject: libata: Blacklist queued TRIM on Samsung SSD 850 Pro
X-Git-Tag: v3.19.5~51
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=19b6da5ab9cd57b348bea9126fab9566d1cd7e18;p=thirdparty%2Fkernel%2Fstable.git

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@zahlenfresser.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 94d06c689b4d7..00f2f740b4251 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4243,6 +4243,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "Crucial_CT*MX100*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Samsung SSD 850 PRO*",	NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 
 	/*
 	 * As defined, the DRAT (Deterministic Read After Trim) and RZAT