Backport patch to blacklist TRIM on all Samsung 8xx series SSDs (rhbz 1218662)

kernel.spec

@@ -615,6 +615,9 @@ Patch26176: Input-synaptics-pin-3-touches-when-the-firmware-repo.patch
 #rhbz 1210857
 Patch26192: blk-loop-avoid-too-many-pending-per-work-IO.patch
 
+#rhbz 1218662
+Patch26199: libata-Blacklist-queued-TRIM-on-all-Samsung-800-seri.patch
+
 # END OF PATCH DEFINITIONS
 
 %endif
@@ -1345,6 +1348,9 @@ ApplyPatch Input-synaptics-pin-3-touches-when-the-firmware-repo.patch
 #rhbz 1210857
 ApplyPatch blk-loop-avoid-too-many-pending-per-work-IO.patch
 
+#rhbz 1218662
+ApplyPatch libata-Blacklist-queued-TRIM-on-all-Samsung-800-seri.patch
+
 # END OF PATCH APPLICATIONS
 
 %endif
@@ -2195,6 +2201,9 @@ fi
 #
 # 
 %changelog
+* Tue May 05 2015 Josh Boyer <jwboyer@fedoraproject.org>
+- Backport patch to blacklist TRIM on all Samsung 8xx series SSDs (rhbz 1218662)
+
 * Mon May 04 2015 Josh Boyer <jwboyer@fedoraproject.org> - 4.1.0-0.rc2.git0.1
 - Linux v4.1-rc2
 - Disable debugging options.

libata-Blacklist-queued-TRIM-on-all-Samsung-800-seri.patch

@@ -0,0 +1,39 @@
+From: "Martin K. Petersen" <martin.petersen@oracle.com>
+Date: Mon, 4 May 2015 12:20:29 -0400
+Subject: [PATCH] libata: Blacklist queued TRIM on all Samsung 800-series
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The queued TRIM problems appear to be generic to Samsung's firmware and
+not tied to a particular model. A recent update to the 840 EVO firmware
+introduced the same issue as we saw on 850 Pro.
+
+Blacklist queued TRIM on all 800-series drives while we work this issue
+with Samsung.
+
+Reported-by: Günter Waller <g.wal@web.de>
+Reported-by: Sven Köhler <sven.koehler@gmail.com>
+Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
+Cc: stable@vger.kernel.org
+Signed-off-by: Tejun Heo <tj@kernel.org>
+---
+ drivers/ata/libata-core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
+index f6cb1f1b30b7..4476fb590733 100644
+--- a/drivers/ata/libata-core.c
++++ b/drivers/ata/libata-core.c
+@@ -4235,7 +4235,7 @@ 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 |
++	{ "Samsung SSD 8*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+ 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+ 
+ 	/*
+-- 
+2.3.6
+