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Patch "libata: Enable queued TRIM for Samsung SSD 860" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Mar 25, 2018

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This is a note to let you know that I've just added the patch titled

libata: Enable queued TRIM for Samsung SSD 860

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
libata-enable-queued-trim-for-samsung-ssd-860.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From ca6bfcb2f6d9deab3924bf901e73622a94900473 Mon Sep 17 00:00:00 2001

From: Ju Hyung Park <[email protected]>
Date: Sun, 11 Mar 2018 02:28:35 +0900
Subject: libata: Enable queued TRIM for Samsung SSD 860

From: Ju Hyung Park <[email protected]>

commit ca6bfcb2f6d9deab3924bf901e73622a94900473 upstream.

Samsung explicitly states that queued TRIM is supported for Linux with 860 PRO and 860 EVO.

Make the previous blacklist to cover only 840 and 850 series.

---
 drivers/ata/libata-core.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/ata/libata-core.c +3 -1
@@ -4243,7 +4243,9 @@ static const struct ata_blacklist_entry
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "Crucial_CT*MX100*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
-	{ "Samsung SSD 8*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+	{ "Samsung SSD 840*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Samsung SSD 850*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "FCCT*M500*",			NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/libata-enable-queued-trim-for-samsung-ssd-860.patch